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MySQL高可用之PXC安装部署,在PXC中重新添加掉线节

来源:http://www.logblo.com 作者:金沙棋牌 时间:2019-09-07 14:35

 

 

 

 

Preface

Preface

Preface

Preface

 

 

 

 

    Yesterday I implemented a three-nodes PXC,but there were some errors when proceeding it.So I decide to research what's wrong with it.The operations and evidences shows below.

    When we add a new node into PXC structure,it will estimate the mothed(IST/SST) to transfer data to the new node.It's no wonder that sst will be automatically choosed.What if a dropped node in PXC by accident want to rejoin the cluster?Especially it has been a long period of time after it was dropped out.We should avoid starting up the node directly.As the SST(either xtrabackup-v2 or rsync mode) will be choosed to resynchronize the dropped node instead of IST.Generally speaking,SST may cause to decline the perormance of the whole cluster.It's recommend to use another way to deal with that kind of issue.That is,slave replication.

    Today,I'm gonna implement a PXC,Let's see the procedure.

    Today I'm gonna test how to rescue a dropped table from binlog server based on a full Xtrabackup backup set.

 

 

 

 

Procedure

Framework

Framework

Framework

 

 

 

 

Fisrt of all,I find out that yesterday's error is due to lack of "socat" package on first node zlm2.

Hostname IP Port OS Version MySQL Version Xtrabackup version
zlm2 192.168.1.101 3308 CentOS 7.0 PXC 5.7.22 2.4.12 Linux (x86_64)
zlm3 192.168.1.102 3308 CentOS 7.0 PXC 5.7.22 2.4.12 Linux (x86_64)
zlm4 192.168.1.103 3308 CentOS 7.0 PXC 5.7.22 2.4.12 Linux (x86_64)
Hostname IP Port OS Version MySQL Version Xtrabackup version
zlm2 192.168.1.101 3308 CentOS 7.0 PXC 5.7.22 2.4.12 Linux (x86_64)
zlm3 192.168.1.102 3308 CentOS 7.0 PXC 5.7.22 2.4.12 Linux (x86_64)
zlm4 192.168.1.103 3308 CentOS 7.0 PXC 5.7.22 2.4.12 Linux (x86_64)
Hostname IP/Port Identity OS Version MySQL Version GTID Mode Binlog Format
zlm1 192.168.56.100/3306 master CentOS 7.0 5.7.21 on row
zlm2 192.168.56.101/3306 slave CentOS 7.0 5.7.21 on row
zlm3 192.168.56.102/3306 binlog server CentOS 7.0 5.7.21 on row
 1 //Here's the error log of it.
 2 2018-08-08T08:48:18.198487 01:00 0 [Note] WSREP: Initiating SST/IST transfer on DONOR side (wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21')
 3 2018-08-08T08:48:18.200272 01:00 2 [Note] WSREP: DONOR thread signaled with 0
 4 which: no socat in (/usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin)
 5     2018-08-08T06:48:18.782344Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
 6     2018-08-08T06:48:18.784043Z WSREP_SST: [ERROR] socat not found in path: /usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin
 7     2018-08-08T06:48:18.785926Z WSREP_SST: [ERROR] ****************************************************** 
 8 2018-08-08T08:48:18.786496 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21': 2 (No such file or directory)
 9 2018-08-08T08:48:18.786587 01:00 0 [ERROR] WSREP: Command did not run: wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21'
10 2018-08-08T08:48:18.787610 01:00 0 [Warning] WSREP: 1.0 (zlm2): State transfer to 0.0 (zlm3) failed: -2 (No such file or directory)
11 
12 [root@zlm2 08:53:31 /data/mysql/mysql3308/data]
13 #rpm -qa|grep socat
14 
15 [root@zlm2 09:11:08 /data/mysql/mysql3308/data]
16 #yum install socat
17 ... //Omitted.
18 
19 Installed:
20   socat.x86_64 0:1.7.3.2-2.el7                                                                                                                       
21 
22 Complete!

 

 

 

 

Procedure

Procedure

Precedure

Restart the PXC mysqld on zlm2.

 

 

 

 1 [root@zlm2 09:21:38 /data/mysql/mysql3308/data]
 2 #mysqladmin -P3308 shutdown
 3 
 4 [root@zlm2 09:22:10 /data/mysql/mysql3308/data]
 5 #ps aux|grep mysqld
 6 mysql     6295  0.1 22.4 1565212 227920 pts/0  Sl   08:47   0:02 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster
 7 root      6835  0.0  0.0 112640   956 pts/3    R    09:22   0:00 grep --color=auto mysqld
 8 
 9 [root@zlm2 09:22:15 /data/mysql/mysql3308/data]
10 #ps aux|grep mysqld
11 root      6841  0.0  0.0 112640   960 pts/3    R    09:22   0:00 grep --color=auto mysqld
12 
13 [root@zlm2 09:30:04 /data/mysql/mysql3308/data]
14 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster &
15 [1] 7055
16 
17 [root@zlm2 09:30:20 /data/mysql/mysql3308/data]
18 #ps aux|grep mysqld
19 mysql     7055  0.4 22.1 1564952 224900 pts/3  Sl   09:30   0:02 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster
20 root      7583  0.0  0.0 112640   956 pts/3    R    09:39   0:00 grep --color=auto mysqld

what's show in error log of initiating SST/IST transfer operation on a new added node.

    The official website of PXC:

Step 1: Create binlog server.

 

 1 2018-08-09T07:23:32.568794 01:00 0 [Note] WSREP: Initiating SST/IST transfer on JOINER side (wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4433' --binlog '/data/mysql/mysql3308/logs/mysql-bin' )
 2 2018-08-09T07:23:33.225673 01:00 2 [Note] WSREP: Prepared SST/IST request: xtrabackup-v2|192.168.1.103:4444/xtrabackup_sst//1
 3 2018-08-09T07:23:33.225697 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 3) (Increment: 1 -> 3)
 4 2018-08-09T07:23:33.225704 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 5 2018-08-09T07:23:33.225721 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
 6 2018-08-09T07:23:33.225760 01:00 0 [Note] WSREP: Service thread queue flushed.
 7 2018-08-09T07:23:33.226619 01:00 2 [Note] WSREP: Check if state gap can be serviced using IST
 8 2018-08-09T07:23:33.226638 01:00 2 [Note] WSREP: Local UUID: 00000000-0000-0000-0000-000000000000 != Group UUID: bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 9 2018-08-09T07:23:33.226677 01:00 2 [Note] WSREP: State gap can't be serviced using IST. Switching to SST
10 2018-08-09T07:23:33.226683 01:00 2 [Note] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (bd5525ab-9a15-11e8-aa0f-4b830c783fc7): 1 (Operation not permitted)
11      at galera/src/replicator_str.cpp:prepare_for_IST():538. IST will be unavailable.
12 2018-08-09T07:23:33.228003 01:00 0 [Note] WSREP: Member 2.0 (zlm4) requested state transfer from '*any*'. Selected 0.0 (zlm2)(SYNCED) as donor.
13 2018-08-09T07:23:33.228029 01:00 0 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 22)
14 2018-08-09T07:23:33.228088 01:00 2 [Note] WSREP: Requesting state transfer: success, donor: 0
15 2018-08-09T07:23:33.228108 01:00 2 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
16     2018-08-09T05:23:33.781389Z WSREP_SST: [INFO] Proceeding with SST.........
17     2018-08-09T05:23:33.808866Z WSREP_SST: [INFO] ............Waiting for SST streaming to complete!

    

 

It still show the ERROR output when node zlm3 startup.

 

 

Check the position on master 

 1 2018-08-08T09:32:14.789691 01:00 0 [Note] WSREP: (e783b5a9, 'tcp://0.0.0.0:4567') connection established to 2bcb8dba tcp://192.168.1.102:4567
 2 2018-08-08T09:32:14.790669 01:00 0 [Note] WSREP: (e783b5a9, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
 3 2018-08-08T09:32:15.289238 01:00 0 [Note] WSREP: declaring 2bcb8dba at tcp://192.168.1.102:4567 stable
 4 2018-08-08T09:32:15.290161 01:00 0 [Note] WSREP: Node e783b5a9 state primary
 5 2018-08-08T09:32:15.291214 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 6 view (view_id(PRIM,2bcb8dba,2)
 7 memb {
 8     2bcb8dba,0
 9     e783b5a9,0
10     }
11 joined {
12     }
13 left {
14     }
15 partitioned {
16     }
17 )
18 2018-08-08T09:32:15.291254 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
19 2018-08-08T09:32:15.291707 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 1, memb_num = 2
20 2018-08-08T09:32:15.291726 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
21 2018-08-08T09:32:15.791844 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 2c64cc25-9add-11e8-bdeb-67bbb141911b
22 2018-08-08T09:32:15.793169 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 2c64cc25-9add-11e8-bdeb-67bbb141911b from 0 (zlm3)
23 2018-08-08T09:32:15.793198 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 2c64cc25-9add-11e8-bdeb-67bbb141911b from 1 (zlm2)
24 2018-08-08T09:32:15.793205 01:00 0 [Note] WSREP: Quorum results:
25     version    = 4,
26     component  = PRIMARY,
27     conf_id    = 1,
28     members    = 1/2 (primary/total),
29     act_id     = 21,
30     last_appl. = 0,
31     protocols  = 0/8/3 (gcs/repl/appl),
32     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
33 2018-08-08T09:32:15.793211 01:00 0 [Note] WSREP: Flow-control interval: [141, 141]
34 2018-08-08T09:32:15.793213 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
35 2018-08-08T09:32:15.793314 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
36 2018-08-08T09:32:15.793324 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21, view# 2: Primary, number of nodes: 2, my index: 1, protocol version 3
37 2018-08-08T09:32:15.793327 01:00 2 [Note] WSREP: Setting wsrep_ready to true
38 2018-08-08T09:32:15.793330 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 2) (Increment: 1 -> 2)
39 2018-08-08T09:32:15.793332 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
40 2018-08-08T09:32:15.793337 01:00 2 [Note] WSREP: Assign initial position for certification: 21, protocol version: 3
41 2018-08-08T09:32:15.793351 01:00 0 [Note] WSREP: Service thread queue flushed.
42 2018-08-08T09:32:16.392574 01:00 0 [Note] WSREP: Member 0.0 (zlm3) requested state transfer from '*any*'. Selected 1.0 (zlm2)(SYNCED) as donor.
43 2018-08-08T09:32:16.392599 01:00 0 [Note] WSREP: Shifting SYNCED -> DONOR/DESYNCED (TO: 21)
44 2018-08-08T09:32:16.392659 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
45 2018-08-08T09:32:16.392879 01:00 0 [Note] WSREP: Initiating SST/IST transfer on DONOR side (wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21')
46 2018-08-08T09:32:16.396838 01:00 2 [Note] WSREP: DONOR thread signaled with 0
47 2018-08-08T09:32:17.917352 01:00 0 [Note] WSREP: (e783b5a9, 'tcp://0.0.0.0:4567') turning message relay requesting off
48     2018-08-08T07:32:27.003790Z WSREP_SST: [INFO] Streaming the backup to joiner at 192.168.1.102 4444
49 2018-08-08T09:32:27.124206 01:00 4 [Note] Access denied for user 'sst'@'192.168.1.101' (using password: YES)
50 2018-08-08T09:32:27.138281 01:00 5 [Note] Aborted connection 5 to db: 'unconnected' user: 'sst' host: 'localhost' (Got an error reading communication packets)
51     2018-08-08T07:32:27.139336Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
52     2018-08-08T07:32:27.140923Z WSREP_SST: [ERROR] xtrabackup finished with error: 1.  Check /data/mysql/mysql3308/data//innobackup.backup.log
53 --------------- innobackup.backup.log (START) --------------------
54 xtrabackup: recognized server arguments: --datadir=/data/mysql/mysql3308/data --server-id=1013308 --open_files_limit=65536 --log_bin=/data/mysql/mysql3308/logs/mysql-bin --innodb_data_file_path=ibdata1:100M:autoextend --innodb_buffer_pool_filename=ib_buffer_pool --innodb_log_group_home_dir=./ --innodb_log_files_in_group=3 --innodb_log_file_size=100M --innodb_file_per_table=1 --innodb_open_files=65535 --innodb_page_size=16k --innodb_read_io_threads=4 --innodb_write_io_threads=4 --innodb_io_capacity=200 --innodb_doublewrite=1 --innodb_log_buffer_size=128M --innodb_flush_log_at_trx_commit=1 --innodb_buffer_pool_size=100M --innodb_flush_method=O_DIRECT --defaults_group=mysqld --parallel=4 
55 xtrabackup: recognized client arguments: --datadir=/data/mysql/mysql3308/data --server-id=1013308 --open_files_limit=65536 --log_bin=/data/mysql/mysql3308/logs/mysql-bin --innodb_data_file_path=ibdata1:100M:autoextend --innodb_buffer_pool_filename=ib_buffer_pool --innodb_log_group_home_dir=./ --innodb_log_files_in_group=3 --innodb_log_file_size=100M --innodb_file_per_table=1 --innodb_open_files=65535 --innodb_page_size=16k --innodb_read_io_threads=4 --innodb_write_io_threads=4 --innodb_io_capacity=200 --innodb_doublewrite=1 --innodb_log_buffer_size=128M --innodb_flush_log_at_trx_commit=1 --innodb_buffer_pool_size=100M --innodb_flush_method=O_DIRECT --defaults_group=mysqld --parallel=4 --port=3308 --user=sst --password=* --socket=/tmp/mysql3308.sock --lock-ddl=1 --backup=1 --galera-info=1 --binlog-info=ON --stream=xbstream --target-dir=/tmp/pxc_sst_sn2p/donor_xb_qh5x 
56 180808 09:32:27  version_check Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_group=xtrabackup;port=3308;mysql_socket=/tmp/mysql3308.sock' as 'sst'  (using password: YES).
57 Failed to connect to MySQL server: DBI connect(';mysql_read_default_group=xtrabackup;port=3308;mysql_socket=/tmp/mysql3308.sock','sst',...) failed: Access denied for user 'sst'@'192.168.1.101' (using password: YES) at - line 1314.
58 180808 09:32:27 Connecting to MySQL server host: localhost, user: sst, password: set, port: 3308, socket: /tmp/mysql3308.sock
59 Using server version 5.7.22-22-29.26-log
60 180808 09:32:27 Executing LOCK TABLES FOR BACKUP...
61 Error: failed to execute query SHOW ENGINE INNODB STATUS: Access denied; you need (at least one of) the PROCESS privilege(s) for this operation
62 --------------- innobackup.backup.log (END) ----------------------
63     2018-08-08T07:32:27.143691Z WSREP_SST: [ERROR] ****************************************************** 
64     2018-08-08T07:32:27.145779Z WSREP_SST: [ERROR] Cleanup after exit with status:22
65 2018-08-08T09:32:27.158932 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21': 22 (Invalid argument)
66 2018-08-08T09:32:27.159041 01:00 0 [ERROR] WSREP: Command did not run: wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:21'
67 2018-08-08T09:32:27.160430 01:00 0 [Warning] WSREP: 1.0 (zlm2): State transfer to 0.0 (zlm3) failed: -22 (Invalid argument)
68 
69 //Error: failed to execute query SHOW ENGINE INNODB STATUS: Access denied; you need (at least one of) the PROCESS privilege(s) for this operation.
70 //It seams the user sst@localhost is lack of privilege of "PROCESS".

**Check the PXC status at first.**

    Choose the Linux-Generic software.There're three version relevant with openssl(100,101,102),I choose the ssl102 version.

1 zlm@192.168.56.100:3306 [sysbench]>show master status;
2  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
3 | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                               |
4  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
5 | mysql-bin.000098 |      363 |              |                  | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715693 |
6  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
7 1 row in set (0.00 sec)

 

 1 (zlm@192.168.1.101 3308)[(none)]>show global status like '%wsrep%';
 2  ---------------------------------- ---------------------------------------------------------- 
 3 | Variable_name                    | Value                                                    |
 4  ---------------------------------- ---------------------------------------------------------- 
 5 | wsrep_local_state_uuid           | bd5525ab-9a15-11e8-aa0f-4b830c783fc7                     |
 6 | wsrep_protocol_version           | 8                                                        |
 7 | wsrep_last_applied               | 22                                                       |
 8 | wsrep_last_committed             | 22                                                       |
 9 | wsrep_replicated                 | 0                                                        |
10 | wsrep_replicated_bytes           | 0                                                        |
11 | wsrep_repl_keys                  | 0                                                        |
12 | wsrep_repl_keys_bytes            | 0                                                        |
13 | wsrep_repl_data_bytes            | 0                                                        |
14 | wsrep_repl_other_bytes           | 0                                                        |
15 | wsrep_received                   | 21                                                       |
16 | wsrep_received_bytes             | 2733                                                     |
17 | wsrep_local_commits              | 0                                                        |
18 | wsrep_local_cert_failures        | 0                                                        |
19 | wsrep_local_replays              | 0                                                        |
20 | wsrep_local_send_queue           | 0                                                        |
21 | wsrep_local_send_queue_max       | 1                                                        |
22 | wsrep_local_send_queue_min       | 0                                                        |
23 | wsrep_local_send_queue_avg       | 0.000000                                                 |
24 | wsrep_local_recv_queue           | 0                                                        |
25 | wsrep_local_recv_queue_max       | 2                                                        |
26 | wsrep_local_recv_queue_min       | 0                                                        |
27 | wsrep_local_recv_queue_avg       | 0.047619                                                 |
28 | wsrep_local_cached_downto        | 0                                                        |
29 | wsrep_flow_control_paused_ns     | 0                                                        |
30 | wsrep_flow_control_paused        | 0.000000                                                 |
31 | wsrep_flow_control_sent          | 0                                                        |
32 | wsrep_flow_control_recv          | 0                                                        |
33 | wsrep_flow_control_interval      | [ 173, 173 ]                                             |
34 | wsrep_flow_control_interval_low  | 173                                                      |
35 | wsrep_flow_control_interval_high | 173                                                      |
36 | wsrep_flow_control_status        | OFF                                                      |
37 | wsrep_cert_deps_distance         | 0.000000                                                 |
38 | wsrep_apply_oooe                 | 0.000000                                                 |
39 | wsrep_apply_oool                 | 0.000000                                                 |
40 | wsrep_apply_window               | 0.000000                                                 |
41 | wsrep_commit_oooe                | 0.000000                                                 |
42 | wsrep_commit_oool                | 0.000000                                                 |
43 | wsrep_commit_window              | 0.000000                                                 |
44 | wsrep_local_state                | 4                                                        |
45 | wsrep_local_state_comment        | Synced                                                   |
46 | wsrep_cert_index_size            | 0                                                        |
47 | wsrep_cert_bucket_count          | 22                                                       |
48 | wsrep_gcache_pool_size           | 1712                                                     |
49 | wsrep_causal_reads               | 0                                                        |
50 | wsrep_cert_interval              | 0.000000                                                 |
51 | wsrep_ist_receive_status         |                                                          |
52 | wsrep_ist_receive_seqno_start    | 0                                                        |
53 | wsrep_ist_receive_seqno_current  | 0                                                        |
54 | wsrep_ist_receive_seqno_end      | 0                                                        |
55 | wsrep_incoming_addresses         | 192.168.1.101:3308,192.168.1.102:3308,192.168.1.103:3308 |
56 | wsrep_desync_count               | 0                                                        |
57 | wsrep_evs_delayed                |                                                          |
58 | wsrep_evs_evict_list             |                                                          |
59 | wsrep_evs_repl_latency           | 0/0/0/0/0                                                |
60 | wsrep_evs_state                  | OPERATIONAL                                              |
61 | wsrep_gcomm_uuid                 | 13eae368-9b79-11e8-9053-338307f4c6cc                     |
62 | wsrep_cluster_conf_id            | 11                                                       |
63 | wsrep_cluster_size               | 3                                                        | //It means I've got three nodes in PXC.
64 | wsrep_cluster_state_uuid         | bd5525ab-9a15-11e8-aa0f-4b830c783fc7                     |
65 | wsrep_cluster_status             | Primary                                                  |
66 | wsrep_connected                  | ON                                                       |
67 | wsrep_local_bf_aborts            | 0                                                        |
68 | wsrep_local_index                | 0                                                        |
69 | wsrep_provider_name              | Galera                                                   |
70 | wsrep_provider_vendor            | Codership Oy <info@codership.com>                        |
71 | wsrep_provider_version           | 3.26(r)                                                  |
72 | wsrep_ready                      | ON                                                       |
73  ---------------------------------- ---------------------------------------------------------- 
74 68 rows in set (0.00 sec)

 

 

Modify the privilege of user sst@localhost.

 

Install Percona-XtraDB-Cluster software on three nodes.

**Make binlog server begin to receive binlog.**

 1 (zlm@192.168.1.101 3308)[(none)]>select user,host from mysql.user;
 2  --------------- ------------- 
 3 | user          | host        |
 4  --------------- ------------- 
 5 | zlm           | 192.168.1.% |
 6 | mysql.session | localhost   |
 7 | mysql.sys     | localhost   |
 8 | root          | localhost   |
 9 | sst           | localhost   |
10  --------------- ------------- 
11 5 rows in set (0.02 sec)
12 
13 (zlm@192.168.1.101 3308)[(none)]>show grants for sst@localhost;
14  --------------------------------------------------------------------------- 
15 | Grants for sst@localhost                                                  |
16  --------------------------------------------------------------------------- 
17 | GRANT RELOAD, LOCK TABLES, REPLICATION CLIENT ON *.* TO 'sst'@'localhost' |
18  --------------------------------------------------------------------------- 
19 1 row in set (0.00 sec)
20 
21 (zlm@192.168.1.101 3308)[(none)]>grant process on *.* to 'sst'@'localhost';
22 ERROR 1045 (28000): Access denied for user 'zlm'@'192.168.1.%' (using password: YES)
23 (zlm@192.168.1.101 3308)[(none)]>exit
24 Bye
25 
26 [root@zlm2 10:07:32 ~]
27 #mysql -uroot -pPassw0rd -hlocalhost -S /tmp/mysql3308.sock
28 mysql: [Warning] Using a password on the command line interface can be insecure.
29 Welcome to the MySQL monitor.  Commands end with ; or g.
30 Your MySQL connection id is 9
31 Server version: 5.7.22-22-29.26-log Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
32 
33 Copyright (c) 2009-2018 Percona LLC and/or its affiliates
34 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
35 
36 Oracle is a registered trademark of Oracle Corporation and/or its
37 affiliates. Other names may be trademarks of their respective
38 owners.
39 
40 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
41 
42 (root@localhost mysql3308.sock)[(none)]>grant process on *.* to sst@localhost;
43 Query OK, 0 rows affected, 1 warning (0.01 sec)
44 
45 (root@localhost mysql3308.sock)[(none)]>show grants for sst@localhost;
46  ------------------------------------------------------------------------------------ 
47 | Grants for sst@localhost                                                           |
48  ------------------------------------------------------------------------------------ 
49 | GRANT RELOAD, PROCESS, LOCK TABLES, REPLICATION CLIENT ON *.* TO 'sst'@'localhost' |
50  ------------------------------------------------------------------------------------ 
51 1 row in set (0.00 sec)

Shutdown MySQL instance on zlm4.

 1 [root@zlm2 07:56:03 ~]
 2 #mkdir -p /opt/mysql
 3 
 4 [root@zlm2 07:56:51 ~]
 5 #ls -l|grep Percona
 6 -rwxr-xr-x   1 root root 252395830 Aug  7 07:54 Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102.tar.gz
 7 
 8 [root@zlm2 07:57:01 ~]
 9 #gzip -d Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102.tar.gz 
10 
11 [root@zlm2 07:57:59 ~]
12 #ls -l|grep Percona
13 -rwxr-xr-x   1 root root 1035939840 Aug  7 07:54 Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102.tar
14 
15 [root@zlm2 07:59:36 ~]
16 #tar xf Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102.tar -C /opt/mysql
17 
18 [root@zlm2 08:02:29 ~]
19 #cd /usr/local
20 
21 [root@zlm2 08:02:22 /usr/local]
22 #ln -s /opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/ mysql
23 
24 [root@zlm2 08:02:28 /usr/local]
25 #ls -l
26 total 4
27 drwxr-xr-x. 2 root   root    105 May  7 10:44 bin
28 drwxr-xr-x. 2 root   root      6 Jun 10  2014 etc
29 drwxr-xr-x. 2 root   root      6 Jun 10  2014 games
30 drwxr-xr-x. 2 root   root      6 Jun 10  2014 include
31 drwxr-xr-x. 2 root   root      6 Jun 10  2014 lib
32 drwxr-xr-x. 3 root   root     18 May  7 09:37 lib64
33 drwxr-xr-x. 2 root   root      6 Jun 10  2014 libexec
34 lrwxrwxrwx  1 root   root     36 Apr 28 14:30 mysql -> mysql-5.7.21-linux-glibc2.12-x86_64/
35 drwxr-xr-x  9 root   root   4096 Aug  7 10:00 mysql-5.7.21-linux-glibc2.12-x86_64
36 drwxrwxr-x  5 root   root     94 May  7 09:28 mysql_performance_monitor-agent
37 drwxr-xr-x. 2 root   root     18 Apr 28 16:06 sbin
38 drwxr-xr-x. 6 root   root     58 May  7 09:37 share
39 drwxr-xr-x. 2 root   root      6 Jun 10  2014 src
40 drwxr-xr-x  8 zabbix zabbix   70 Apr 28 16:45 zabbix
41 
42 [root@zlm2 08:02:32 /usr/local]
43 #rm -f mysql
44 
45 [root@zlm2 08:02:37 /usr/local]
46 #ln -s /opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/ mysql
47 
48 [root@zlm2 08:03:04 /usr/local]
49 #ls -l
50 total 0
51 drwxr-xr-x. 2 root root  21 Jul  4 03:21 bin
52 drwxr-xr-x. 2 root root   6 Jun 10  2014 etc
53 drwxr-xr-x. 2 root root   6 Jun 10  2014 games
54 drwxr-xr-x. 2 root root   6 Jun 10  2014 include
55 drwxr-xr-x. 2 root root   6 Jun 10  2014 lib
56 drwxr-xr-x. 2 root root   6 Jun 10  2014 lib64
57 drwxr-xr-x. 2 root root   6 Jun 10  2014 libexec
58 lrwxrwxrwx  1 root root  75 Aug  7 08:23 mysql -> /opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/
59 drwxr-xr-x  9 root root 120 Aug  7 08:22 mysql-5.7.21-linux-glibc2.12-x86_64
60 drwxr-xr-x. 2 root root   6 Jun 10  2014 sbin
61 drwxr-xr-x. 7 root root  71 Jul  4 03:21 share
62 drwxr-xr-x. 2 root root   6 Jun 10  2014 src
63 
64 [root@zlm2 08:32:56 /usr/local]
65 #ldd mysql/bin/mysqld
66     linux-vdso.so.1 =>  (0x00007fff96f3f000)
67     libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f1119136000)
68     libaio.so.1 => /lib64/libaio.so.1 (0x00007f1118f34000)
69     libnuma.so.1 => /lib64/libnuma.so.1 (0x00007f1118d27000)
70     libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f1118af0000)
71     libssl.so.10 => /lib64/libssl.so.10 (0x00007f1118883000)
72     libcrypto.so.10 => /lib64/libcrypto.so.10 (0x00007f111849b000)
73     libdl.so.2 => /lib64/libdl.so.2 (0x00007f1118297000)
74     libz.so.1 => /lib64/libz.so.1 (0x00007f1118081000)
75     librt.so.1 => /lib64/librt.so.1 (0x00007f1117e78000)
76     libstdc  .so.6 => /lib64/libstdc  .so.6 (0x00007f1117b71000)
77     libm.so.6 => /lib64/libm.so.6 (0x00007f111786f000)
78     libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f1117658000)
79     libc.so.6 => /lib64/libc.so.6 (0x00007f1117297000)
80     /lib64/ld-linux-x86-64.so.2 (0x00007f1119359000)
81     libfreebl3.so => /lib64/libfreebl3.so (0x00007f1117094000)
82     libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007f1116e47000)
83     libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f1116b64000)
84     libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007f1116960000)
85     libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f111672d000)
86     libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f111651e000)
87     libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007f1116319000)
88     libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f11160ff000)
89     libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f1115eda000)
90     libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f1115c78000)
91     liblzma.so.5 => /lib64/liblzma.so.5 (0x00007f1115a53000)
92     
93 ... //Omitted the procedure of installation on the other nodes.
 1 [root@zlm3 16:25:01 /data]
 2 #mysqlbinlog -R --raw -h192.168.56.100 -urepl -prepl4slave -P3306 --stop-never mysql-bin.000098 &
 3 [1] 4375
 4 mysqlbinlog: [Warning] Using a password on the command line interface can be insecure.
 5 
 6 [root@zlm3 16:26:24 /data]
 7 #ls -l
 8 total 4
 9 drwxr-xr-x 2 mysql mysql  32 Jun 10 03:41 backup
10 drwxr-xr-x 3 mysql mysql  22 Mar 18 16:05 mysql
11 -rw-r----- 1 root  root  363 Jul 29 16:26 mysql-bin.000098

 

 1 [root@zlm4 09:02:18 /data/mysql/mysql3308]
 2 #!ps
 3 ps aux|grep mysqld
 4 mysql     5367  0.2 21.9 1574708 223476 pts/0  Sl   08:00   0:07 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
 5 root      5809  0.0  0.0 112640   960 pts/0    R    09:02   0:00 grep --color=auto mysqld
 6 
 7 [root@zlm4 09:02:22 /data/mysql/mysql3308]
 8 #pkill mysqld
 9 
10 [root@zlm4 09:02:43 /data/mysql/mysql3308]
11 #!ps
12 ps aux|grep mysqld
13 root      5827  0.0  0.0 112640   960 pts/0    R    09:02   0:00 grep --color=auto mysqld
14 [1]   Done                    mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf

 

 

Restart PXC again on zlm2.

 

**Initialized a PXC node with proper pxc relevant parameters below.**

**Flush two logs on master.**

[root@zlm2 10:11:10 ~]
#ps aux|grep mysqld
mysql     7055  0.1 22.2 1564952 225952 pts/3  Sl   09:30   0:04 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster
root      7661  0.0  0.0 112640   960 pts/0    R    10:11   0:00 grep --color=auto mysqld

[root@zlm2 10:11:28 ~]
#mysqladmin -uzlm -pzlmzlm -h192.168.1.101 -P3308 shutdown
mysqladmin: [Warning] Using a password on the command line interface can be insecure.

[root@zlm2 10:11:50 ~]
#ps aux|grep mysqld
root      7672  0.0  0.0 112640   960 pts/0    R    10:12   0:00 grep --color=auto mysqld

[root@zlm2 09:39:30 /data/mysql/mysql3308/data]
#mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster &
[2] 7690
[1]   Done                    mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster

[root@zlm2 10:12:44 /data/mysql/mysql3308/data]
#ps aux|grep mysqld
mysql     7690  5.8 20.6 1556488 210296 pts/3  Sl   10:12   0:01 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster
root      7729  0.0  0.0 112640   960 pts/3    R    10:13   0:00 grep --color=auto mysqld

//No ERROR messages were found in error log.

Check the error log on node zlm3.

 1 [root@zlm2 08:51:49 ~]
 2 #mkdir -p /data/mysql/mysql3308/{data,logs,tmp}
 3 
 4 [root@zlm2 08:52:44 ~]
 5 #chown -R mysql.mysql /data
 6 
 7 [root@zlm2 08:53:27 ~]
 8 #cp /vagrant/my3308.cnf /data/mysql/mysql3308
 9 
10 [root@zlm2 08:54:09 ~]
11 #cd /data/mysql/mysql3308
12 
13 [root@zlm2 08:54:17 /data/mysql/mysql3308]
14 #ls -l
15 total 8
16 drwxr-xr-x 2 mysql mysql    6 Aug  7 08:52 data
17 drwxr-xr-x 2 mysql mysql    6 Aug  7 08:52 logs
18 -rwxr-xr-x 1 root  root  4522 Aug  7 08:54 my3308.cnf
19 drwxr-xr-x 2 mysql mysql    6 Aug  7 08:52 tmp
20 
21 [root@zlm2 08:54:30 /data/mysql/mysql3308]
22 #tail -20 my3308.cnf 
23 ...
24 #pxc
25 innodb_locks_unsafe_for_binlog=1
26 innodb_autoinc_lock_mode=2
27 loose-wsrep_cluster_name=pxc_wubx 
28 loose-wsrep_cluster_address=gcomm://192.168.1.101,192.168.1.102,192.168.103
29 loose-wsrep_node_address=192.168.1.101
30 loose-wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so
31 loose-wsrep_sst_method=xtrabackup-v2
32 #loose-wsrep_sst_method=rsync
33 loose-wsrep_sst_auth=sst:zlmzlm
34 #loose-wsrep_debug=on
35 #loose-wsrep_provider_options="debug=on"
36 [root@zlm2 08:54:38 /data/mysql/mysql3308]
37 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --initialize
38 
39 [root@zlm2 09:00:56 /data/mysql/mysql3308]
40 #tail ./data/error.log 
41 2018-08-07T09:00:47.560965 01:00 0 [Warning] CA certificate ca.pem is self signed.
42 2018-08-07T09:00:47.603271 01:00 1 [Note] A temporary password is generated for root@localhost: bY2jmV=k)ltM //This is the password we need when first login.
43 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'user' entry 'root@localhost' ignored in --skip-name-resolve mode.
44 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'user' entry 'mysql.session@localhost' ignored in --skip-name-resolve mode.
45 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'user' entry 'mysql.sys@localhost' ignored in --skip-name-resolve mode.
46 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'db' entry 'performance_schema mysql.session@localhost' ignored in --skip-name-resolve mode.
47 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.
48 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.
49 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.
50 2018-08-07T09:00:48.459948 01:00 1 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.
51 
52 [root@zlm2 09:02:45 /data/mysql/mysql3308]
53 #cd data
54 
55 [root@zlm2 09:02:57 /data/mysql/mysql3308/data]
56 #ls -l
57 total 409676
58 -rw-r----- 1 mysql mysql        56 Aug  7 09:00 auto.cnf
59 -rw------- 1 mysql mysql      1680 Aug  7 09:00 ca-key.pem
60 -rw-r--r-- 1 mysql mysql      1120 Aug  7 09:00 ca.pem
61 -rw-r--r-- 1 mysql mysql      1120 Aug  7 09:00 client-cert.pem
62 -rw------- 1 mysql mysql      1680 Aug  7 09:00 client-key.pem
63 -rw-r----- 1 mysql mysql      2354 Aug  7 09:00 error.log
64 -rw-r----- 1 mysql mysql       423 Aug  7 09:00 ib_buffer_pool
65 -rw-r----- 1 mysql mysql 104857600 Aug  7 09:00 ibdata1
66 -rw-r----- 1 mysql mysql 104857600 Aug  7 09:00 ib_logfile0
67 -rw-r----- 1 mysql mysql 104857600 Aug  7 09:00 ib_logfile1
68 -rw-r----- 1 mysql mysql 104857600 Aug  7 09:00 ib_logfile2
69 drwxr-x--- 2 mysql mysql      4096 Aug  7 09:00 mysql
70 drwxr-x--- 2 mysql mysql      8192 Aug  7 09:00 performance_schema
71 -rw------- 1 mysql mysql      1676 Aug  7 09:00 private_key.pem
72 -rw-r--r-- 1 mysql mysql       452 Aug  7 09:00 public_key.pem
73 -rw-r--r-- 1 mysql mysql      1120 Aug  7 09:00 server-cert.pem
74 -rw------- 1 mysql mysql      1676 Aug  7 09:00 server-key.pem
75 -rw-r----- 1 mysql mysql       227 Aug  7 09:00 slow.log
76 drwxr-x--- 2 mysql mysql      8192 Aug  7 09:00 sys
77 
78 //Omitted the operations on the other nodes.Notice that there's no need to initialize the other node.
 1 zlm@192.168.56.100:3306 [sysbench]>flush logs;
 2 Query OK, 0 rows affected (0.06 sec)
 3 
 4 zlm@192.168.56.100:3306 [sysbench]>flush logs;
 5 Query OK, 0 rows affected (0.01 sec)
 6 
 7 zlm@192.168.56.100:3306 [sysbench]>show master status;
 8  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
 9 | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                               |
10  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
11 | mysql-bin.000100 |      194 |              |                  | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715693 |
12  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
13 1 row in set (0.00 sec)

 

 1 [root@zlm3 09:01:42 /data/mysql/mysql3308/data]
 2 #tail -f error.log 
 3 2018-08-09T09:02:44.880772 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: tcp://192.168.1.103:4567 
 4 2018-08-09T09:02:44.880866 01:00 0 [Note] WSREP: declaring 13eae368 at tcp://192.168.1.101:4567 stable
 5 2018-08-09T09:02:44.880877 01:00 0 [Note] WSREP: forgetting 74f3db69 (tcp://192.168.1.103:4567)
 6 2018-08-09T09:02:44.880899 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') turning message relay requesting off
 7 2018-08-09T09:02:44.884451 01:00 0 [Note] WSREP: Node 13eae368 state primary
 8 2018-08-09T09:02:44.887086 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 9 view (view_id(PRIM,13eae368,12)
10 memb {
11     13eae368,0
12     23fb8f7a,0
13     }
14 joined {
15     }
16 left {
17     }
18 partitioned {
19     74f3db69,0
20     }
21 )
22 2018-08-09T09:02:44.887205 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
23 2018-08-09T09:02:44.887402 01:00 0 [Note] WSREP: forgetting 74f3db69 (tcp://192.168.1.103:4567)
24 2018-08-09T09:02:44.887688 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 1, memb_num = 2
25 2018-08-09T09:02:44.887705 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
26 2018-08-09T09:02:44.888444 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 37401cc1-9ba2-11e8-87aa-2f9e83444bbe
27 2018-08-09T09:02:44.889150 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 37401cc1-9ba2-11e8-87aa-2f9e83444bbe from 0 (zlm2)
28 2018-08-09T09:02:44.889187 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 37401cc1-9ba2-11e8-87aa-2f9e83444bbe from 1 (zlm3)
29 2018-08-09T09:02:44.889198 01:00 0 [Note] WSREP: Quorum results:
30     version    = 4,
31     component  = PRIMARY,
32     conf_id    = 11,
33     members    = 2/2 (primary/total),
34     act_id     = 22,
35     last_appl. = 0,
36     protocols  = 0/8/3 (gcs/repl/appl),
37     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
38 2018-08-09T09:02:44.889206 01:00 0 [Note] WSREP: Flow-control interval: [141, 141]
39 2018-08-09T09:02:44.889210 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
40 2018-08-09T09:02:44.889304 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
41 2018-08-09T09:02:44.889315 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 12: Primary, number of nodes: 2, my index: 1, protocol version 3
42 2018-08-09T09:02:44.889319 01:00 2 [Note] WSREP: Setting wsrep_ready to true
43 2018-08-09T09:02:44.889324 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 2 -> 2) (Increment: 3 -> 2)
44 2018-08-09T09:02:44.889328 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
45 2018-08-09T09:02:44.889336 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
46 2018-08-09T09:02:44.889355 01:00 0 [Note] WSREP: Service thread queue flushed.
47 2018-08-09T09:02:50.000210 01:00 0 [Note] WSREP:  cleaning up 74f3db69 (tcp://192.168.1.103:4567)

 

 

 Restart PXC again on zlm3 and check the output of error log.

 

**Start mysqld of PXC on zlm2 as the first node in PXC.**

**Check whether the newly generated binlogs are successfully transmited to binlog server.**

 1 [root@zlm3 10:27:10 ~]
 2 #ps aux|grep mysqld
 3 root      6694  0.0  0.0 112640   960 pts/1    R    10:43   0:00 grep --color=auto mysqld
 4 [2]   Exit 1                  mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
 5 
 6 [root@zlm3 10:30:01 /data/mysql/mysql3308/data]
 7 #cat error.log |grep ERROR
 8     2018-08-08T08:27:19.819918Z WSREP_SST: [ERROR] Cleanup after exit with status:1
 9 2018-08-08T10:27:19.826527 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '6021' --binlog '/data/mysql/mysql3308/logs/mysql-bin' : 1 (Operation not permitted)
10 2018-08-08T10:27:19.826557 01:00 0 [ERROR] WSREP: Failed to read uuid:seqno from joiner script.
11 2018-08-08T10:27:19.826565 01:00 0 [ERROR] WSREP: SST script aborted with error 1 (Operation not permitted)
12 2018-08-08T10:27:19.826592 01:00 0 [ERROR] WSREP: SST failed: 1 (Operation not permitted)
13 2018-08-08T10:27:19.826595 01:00 0 [ERROR] Aborting

**Do some DML operations on node zlm3.**

  1 [root@zlm2 09:21:46 /data/mysql/mysql3308/data]
  2 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster &
  3 [1] 6251
  4 
  5 [root@zlm2 09:22:57 /data/mysql/mysql3308/data]
  6 #tail ../data/error.log |grep ERROR
  7 2018-08-07T09:22:57.471628 01:00 0 [ERROR] WSREP: wsrep_load(): dlopen(): /usr/local/mysql/lib/libgalera_smm.so: symbol SSL_COMP_free_compression_methods, version libssl.so.10 not defined in file libssl.so.10 with link time reference
  8 2018-08-07T09:22:57.471657 01:00 0 [ERROR] WSREP: wsrep_load() failed to load the provider('/usr/local/mysql/lib/libgalera_smm.so'): Invalid argument (22). Need to abort.
  9 2018-08-07T09:22:57.471661 01:00 0 [ERROR] Aborting
 10 [1]   Exit 1                  mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
 11 
 12 [root@zlm2 09:23:19 /data/mysql/mysql3308/data]
 13 #cd /usr/local/mysql/lib
 14 
 15 [root@zlm2 09:26:28 /usr/local/mysql/lib]
 16 #ls -l|grep libgalera_smm.so
 17 -rwxr-xr-x 1 root root 35086192 Jun 29 05:44 libgalera_smm.so
 18 
 19 [root@zlm2 09:26:38 /usr/local/mysql/lib]
 20 #rpm -qa|grep openssl
 21 openssl-libs-1.0.1e-42.el7.9.x86_64
 22 openssl-devel-1.0.1e-42.el7.9.x86_64
 23 openssl-1.0.1e-42.el7.9.x86_64
 24 
 25 [root@zlm2 09:32:25 /usr/local/mysql/lib]
 26 #cd /usr/lib64
 27 
 28 [root@zlm2 09:34:03 /usr/lib64]
 29 #ls -l|grep libssl
 30 -rwxr-xr-x.  1 root root  255888 Mar  6  2015 libssl3.so
 31 lrwxrwxrwx   1 root root      16 Jul 16  2015 libssl.so -> libssl.so.1.0.1e
 32 lrwxrwxrwx   1 root root      16 Jul 16  2015 libssl.so.10 -> libssl.so.1.0.1e
 33 -rwxr-xr-x   1 root root  449864 Jun 29  2015 libssl.so.1.0.1e
 34 
 35 [root@zlm2 09:41:02 /usr/lib64]
 36 #yum install openssl
 37 ... //Omitted.
 38 
 39 Updated:
 40   openssl.x86_64 1:1.0.2k-12.el7                                                                                                                     
 41 
 42 Dependency Updated:
 43   openssl-devel.x86_64 1:1.0.2k-12.el7                                      openssl-libs.x86_64 1:1.0.2k-12.el7                                     
 44 
 45 Complete!
 46 
 47 [root@zlm2 09:44:39 /usr/lib64]
 48 #tail /data/mysql/mysql3308/data/error.log |grep ERROR
 49 
 50 [root@zlm2 09:45:15 /usr/lib64]
 51 #ps aux|grep mysqld
 52 mysql     6345  2.9 20.1 1556468 204812 pts/0  Sl   09:44   0:01 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster
 53 root      6390  0.0  0.0 112640   960 pts/0    R    09:45   0:00 grep --color=auto mysqld
 54 
 55 [root@zlm2 09:46:00 /usr/lib64]
 56 #cat /data/mysql/mysql3308/data/error.log |grep password
 57 2018-08-07T09:00:47.603271 01:00 1 [Note] A temporary password is generated for root@localhost: bY2jmV=k)ltM
 58 
 59 [root@zlm2 09:47:28 /usr/lib64]
 60 #mysql -uroot -p -S /tmp/mysql3308.sock
 61 Enter password: 
 62 ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.1.101' (111)
 63 
 64 [root@zlm2 09:48:11 /usr/lib64]
 65 #ps aux|grep mysqld
 66 mysql     6345  0.6 20.1 1556468 204812 pts/0  Sl   09:44   0:01 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster
 67 root      6433  0.0  0.0 112640   960 pts/0    R    09:48   0:00 grep --color=auto mysqld
 68 
 69 [root@zlm2 09:57:21 /usr/lib64]
 70 #mysql -uroot -p -hlocalhost -S /tmp/mysql3308.sock
 71 Enter password: 
 72 Welcome to the MySQL monitor.  Commands end with ; or g.
 73 Your MySQL connection id is 4
 74 Server version: 5.7.22-22-29.26-log
 75 
 76 Copyright (c) 2009-2018 Percona LLC and/or its affiliates
 77 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
 78 
 79 Oracle is a registered trademark of Oracle Corporation and/or its
 80 affiliates. Other names may be trademarks of their respective
 81 owners.
 82 
 83 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
 84 
 85 (root@localhost mysql3308.sock)[(none)]>grant all privileges on *.* to zlm@'192.168.1.%';
 86 ERROR 1133 (42000): Can't find any matching row in the user table
 87 (root@localhost mysql3308.sock)[(none)]>grant all privileges on *.* to zlm@'192.168.1.%' identified by 'zlmzlm';
 88 Query OK, 0 rows affected, 1 warning (0.34 sec)
 89 
 90 (root@localhost mysql3308.sock)[(none)]>grant reload,lock tables,replication client on *.* to sst@localhost identified by 'zlmzlm';
 91 Query OK, 0 rows affected, 2 warnings (0.03 sec)
 92 
 93 (root@localhost mysql3308.sock)[(none)]>select user,host from mysql.user;
 94  --------------- ------------- 
 95 | user          | host        |
 96  --------------- ------------- 
 97 | zlm           | 192.168.1.% |
 98 | mysql.session | localhost   |
 99 | mysql.sys     | localhost   |
100 | root          | localhost   |
101 | sst           | localhost   |
102  --------------- ------------- 
103 5 rows in set (0.00 sec)
104 
105 (root@localhost mysql3308.sock)[(none)]>show global status like '%wsrep%';
106  ---------------------------------- -------------------------------------- 
107 | Variable_name                    | Value                                |
108  ---------------------------------- -------------------------------------- 
109 | wsrep_local_state_uuid           | bd5525ab-9a15-11e8-aa0f-4b830c783fc7 |
110 | wsrep_protocol_version           | 8                                    |
111 | wsrep_last_applied               | 2                                    |
112 | wsrep_last_committed             | 2                                    |
113 | wsrep_replicated                 | 2                                    |
114 | wsrep_replicated_bytes           | 432                                  |
115 | wsrep_repl_keys                  | 2                                    |
116 | wsrep_repl_keys_bytes            | 64                                   |
117 | wsrep_repl_data_bytes            | 232                                  |
118 | wsrep_repl_other_bytes           | 0                                    |
119 | wsrep_received                   | 2                                    |
120 | wsrep_received_bytes             | 141                                  |
121 | wsrep_local_commits              | 0                                    |
122 | wsrep_local_cert_failures        | 0                                    |
123 | wsrep_local_replays              | 0                                    |
124 | wsrep_local_send_queue           | 0                                    |
125 | wsrep_local_send_queue_max       | 1                                    |
126 | wsrep_local_send_queue_min       | 0                                    |
127 | wsrep_local_send_queue_avg       | 0.000000                             |
128 | wsrep_local_recv_queue           | 0                                    |
129 | wsrep_local_recv_queue_max       | 2                                    |
130 | wsrep_local_recv_queue_min       | 0                                    |
131 | wsrep_local_recv_queue_avg       | 0.500000                             |
132 | wsrep_local_cached_downto        | 1                                    |
133 | wsrep_flow_control_paused_ns     | 0                                    |
134 | wsrep_flow_control_paused        | 0.000000                             |
135 | wsrep_flow_control_sent          | 0                                    |
136 | wsrep_flow_control_recv          | 0                                    |
137 | wsrep_flow_control_interval      | [ 100, 100 ]                         |
138 | wsrep_flow_control_interval_low  | 100                                  |
139 | wsrep_flow_control_interval_high | 100                                  |
140 | wsrep_flow_control_status        | OFF                                  |
141 | wsrep_cert_deps_distance         | 1.000000                             |
142 | wsrep_apply_oooe                 | 0.000000                             |
143 | wsrep_apply_oool                 | 0.000000                             |
144 | wsrep_apply_window               | 1.000000                             |
145 | wsrep_commit_oooe                | 0.000000                             |
146 | wsrep_commit_oool                | 0.000000                             |
147 | wsrep_commit_window              | 1.000000                             |
148 | wsrep_local_state                | 4                                    |
149 | wsrep_local_state_comment        | Synced                               |
150 | wsrep_cert_index_size            | 1                                    |
151 | wsrep_cert_bucket_count          | 22                                   |
152 | wsrep_gcache_pool_size           | 1832                                 |
153 | wsrep_causal_reads               | 0                                    |
154 | wsrep_cert_interval              | 0.000000                             |
155 | wsrep_ist_receive_status         |                                      |
156 | wsrep_ist_receive_seqno_start    | 0                                    |
157 | wsrep_ist_receive_seqno_current  | 0                                    |
158 | wsrep_ist_receive_seqno_end      | 0                                    |
159 | wsrep_incoming_addresses         | 192.168.1.101:3308                   |
160 | wsrep_desync_count               | 0                                    |
161 | wsrep_evs_delayed                |                                      |
162 | wsrep_evs_evict_list             |                                      |
163 | wsrep_evs_repl_latency           | 0/0/0/0/0                            |
164 | wsrep_evs_state                  | OPERATIONAL                          |
165 | wsrep_gcomm_uuid                 | bd54497d-9a15-11e8-b386-2759969fcd01 |
166 | wsrep_cluster_conf_id            | 1                                    |
167 | wsrep_cluster_size               | 1                                    |
168 | wsrep_cluster_state_uuid         | bd5525ab-9a15-11e8-aa0f-4b830c783fc7 |
169 | wsrep_cluster_status             | Primary                              |
170 | wsrep_connected                  | ON                                   |
171 | wsrep_local_bf_aborts            | 0                                    |
172 | wsrep_local_index                | 0                                    |
173 | wsrep_provider_name              | Galera                               |
174 | wsrep_provider_vendor            | Codership Oy <info@codership.com>    |
175 | wsrep_provider_version           | 3.26(r)                              |
176 | wsrep_ready                      | ON                                   |
177  ---------------------------------- -------------------------------------- 
178 68 rows in set (0.00 sec)
179 
180 //Check the below global status of PXC.
181 | wsrep_local_state                | 4                                    |
182 | wsrep_local_state_comment        | Synced                               |
183 | wsrep_cluster_status             | Primary                              |
184 | wsrep_connected                  | ON                                   |
185 
186 //It means that the PXC has been worked normally on node zlm2.
187 
188 //The partial error log of PXC which shows the success of starting up of it.
189 2018-08-07T09:44:40.631123 01:00 0 [Note] Event Scheduler: Loaded 0 events
190 2018-08-07T09:44:40.631550 01:00 0 [Note] mysqld: ready for connections.
191 Version: '5.7.22-22-29.26-log'  socket: '/tmp/mysql3308.sock'  port: 3308  Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
192 2018-08-07T09:44:40.635469 01:00 2 [Note] WSREP: Initialized wsrep sidno 2
193 2018-08-07T09:44:40.635501 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 1) (Increment: 1 -> 1)
194 2018-08-07T09:44:40.635510 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
195 2018-08-07T09:44:40.635525 01:00 2 [Note] WSREP: Assign initial position for certification: 0, protocol version: 3
196 2018-08-07T09:44:40.635540 01:00 0 [Note] WSREP: Service thread queue flushed.
197 2018-08-07T09:44:40.635577 01:00 2 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> bd5525ab-9a15-11e8-aa0f-4b830c783fc7:0
198 2018-08-07T09:44:40.637360 01:00 2 [Note] WSREP: Synchronized with group, ready for connections 
199 2018-08-07T09:44:40.637369 01:00 2 [Note] WSREP: Setting wsrep_ready to true
200 2018-08-07T09:44:40.637372 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
201 
202 //Check the files in datadir.
203 [root@zlm2 10:38:25 /data/mysql/mysql3308/data]
204 #ls -l
205 total 556916
206 -rw-r----- 1 mysql mysql        56 Aug  7 09:00 auto.cnf
207 -rw------- 1 mysql mysql      1680 Aug  7 09:00 ca-key.pem
208 -rw-r--r-- 1 mysql mysql      1120 Aug  7 09:00 ca.pem
209 -rw-r--r-- 1 mysql mysql      1120 Aug  7 09:00 client-cert.pem
210 -rw------- 1 mysql mysql      1680 Aug  7 09:00 client-key.pem
211 -rw-r----- 1 mysql mysql     24663 Aug  7 10:30 error.log
212 -rw-r----- 1 mysql mysql 134219048 Aug  7 10:30 galera.cache
213 -rw-r----- 1 mysql mysql       113 Aug  7 10:30 grastate.dat
214 -rw-r----- 1 mysql mysql       170 Aug  7 10:30 gvwstate.dat
215 -rw-r----- 1 mysql mysql       423 Aug  7 09:00 ib_buffer_pool
216 -rw-r----- 1 mysql mysql 104857600 Aug  7 10:16 ibdata1
217 -rw-r----- 1 mysql mysql 104857600 Aug  7 10:16 ib_logfile0
218 -rw-r----- 1 mysql mysql 104857600 Aug  7 09:00 ib_logfile1
219 -rw-r----- 1 mysql mysql 104857600 Aug  7 09:00 ib_logfile2
220 -rw-r----- 1 mysql mysql  12582912 Aug  7 09:44 ibtmp1
221 drwxr-x--- 2 mysql mysql      4096 Aug  7 09:00 mysql
222 drwxr-x--- 2 mysql mysql      8192 Aug  7 09:00 performance_schema
223 -rw------- 1 mysql mysql      1676 Aug  7 09:00 private_key.pem
224 -rw-r--r-- 1 mysql mysql       452 Aug  7 09:00 public_key.pem
225 -rw-r--r-- 1 mysql mysql      1120 Aug  7 09:00 server-cert.pem
226 -rw------- 1 mysql mysql      1676 Aug  7 09:00 server-key.pem
227 -rw-r----- 1 mysql mysql       454 Aug  7 09:44 slow.log
228 drwxr-x--- 2 mysql mysql      8192 Aug  7 09:00 sys
229 -rw-r----- 1 mysql mysql   3932160 Aug  7 10:16 xb_doublewrite
230 -rw-r----- 1 mysql mysql         5 Aug  7 09:44 zlm2.pid
231 
232 [root@zlm2 10:38:27 /data/mysql/mysql3308/data]
233 #cat grastate.dat
234 # GALERA saved state
235 version: 2.1
236 uuid:    bd5525ab-9a15-11e8-aa0f-4b830c783fc7
237 seqno:   -1
238 safe_to_bootstrap: 1 //This means the node is the first one who starts the cluster.
1 [root@zlm3 16:26:27 /data]
2 #ls -l
3 total 12
4 drwxr-xr-x 2 mysql mysql  32 Jun 10 03:41 backup
5 drwxr-xr-x 3 mysql mysql  22 Mar 18 16:05 mysql
6 -rw-r----- 1 root  root  410 Jul 29 16:27 mysql-bin.000098
7 -rw-r----- 1 root  root  241 Jul 29 16:27 mysql-bin.000099
8 -rw-r----- 1 root  root  194 Jul 29 16:27 mysql-bin.000100

 

 1 [root@zlm3 09:07:05 /data/mysql/mysql3308/data]
 2 #mysql -uzlm -pzlmzlm -h192.168.1.102 -P3308
 3 mysql: [Warning] Using a password on the command line interface can be insecure.
 4 Welcome to the MySQL monitor.  Commands end with ; or g.
 5 Your MySQL connection id is 5
 6 Server version: 5.7.22-22-29.26-log Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
 7 
 8 Copyright (c) 2009-2018 Percona LLC and/or its affiliates
 9 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
10 
11 Oracle is a registered trademark of Oracle Corporation and/or its
12 affiliates. Other names may be trademarks of their respective
13 owners.
14 
15 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
16 
17 (zlm@192.168.1.102 3308)[(none)]>show databases;
18  -------------------- 
19 | Database           |
20  -------------------- 
21 | information_schema |
22 | mysql              |
23 | performance_schema |
24 | sys                |
25  -------------------- 
26 4 rows in set (0.01 sec)
27 
28 (zlm@192.168.1.102 3308)[(none)]>create database zlm;
29 Query OK, 1 row affected (0.01 sec)
30 
31 (zlm@192.168.1.102 3308)[(none)]>use zlm;
32 Database changed
33 (zlm@192.168.1.102 3308)[zlm]>create table t1(
34     -> id int,
35     -> name char(10)
36     -> ) engine=innodb charset=utf8mb4;
37 Query OK, 0 rows affected (0.04 sec)
38 
39 (zlm@192.168.1.102 3308)[zlm]>insert into t1 values(1,'MySQL'),(2,'Oracle'),(3,'PostgreSQL');
40 ERROR 1105 (HY000): Percona-XtraDB-Cluster prohibits use of DML command on a table (zlm.t1) without an explicit primary key with pxc_strict_mode = ENFORCING or MASTER //DML of tables need explicit primary key in PXC.
41 (zlm@192.168.1.102 3308)[zlm]>alter table t1 add primary key(id);
42 Query OK, 0 rows affected (0.08 sec)
43 Records: 0  Duplicates: 0  Warnings: 0
44 
45 (zlm@192.168.1.102 3308)[zlm]>insert into t1 values(1,'MySQL'),(2,'Oracle'),(3,'PostgreSQL');
46 Query OK, 3 rows affected (0.01 sec)
47 Records: 3  Duplicates: 0  Warnings: 0
48 
49 (zlm@192.168.1.102 3308)[zlm]>select * from t1;
50  ---- ------------ 
51 | id | name       |
52  ---- ------------ 
53 |  1 | MySQL      |
54 |  2 | Oracle     |
55 |  3 | PostgreSQL |
56  ---- ------------ 
57 3 rows in set (0.00 sec)

 

 

Check the error log on donor node zlm2 begin with the time of starting mysqld on joiner zlm3.

 

**Start mysqld of PXC of the remaining nodes.**

Step 2: Destroy the table.

  1 2018-08-08T10:54:47.539174 01:00 0 [Note] WSREP: (d4006db4, 'tcp://0.0.0.0:4567') connection established to b3de093b tcp://192.168.1.102:4567
  2 2018-08-08T10:54:47.539620 01:00 0 [Note] WSREP: (d4006db4, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
  3 2018-08-08T10:54:48.038167 01:00 0 [Note] WSREP: declaring b3de093b at tcp://192.168.1.102:4567 stable
  4 2018-08-08T10:54:48.038656 01:00 0 [Note] WSREP: Node d4006db4 state primary
  5 2018-08-08T10:54:48.039842 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
  6 view (view_id(PRIM,b3de093b,8)
  7 memb {
  8     b3de093b,0
  9     d4006db4,0
 10     }
 11 joined {
 12     }
 13 left {
 14     }
 15 partitioned {
 16     }
 17 )
 18 2018-08-08T10:54:48.039890 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
 19 2018-08-08T10:54:48.040138 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 1, memb_num = 2
 20 2018-08-08T10:54:48.040154 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
 21 2018-08-08T10:54:48.540351 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: b47737d3-9ae8-11e8-81e0-7bfd4d57e067
 22 2018-08-08T10:54:48.540644 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: b47737d3-9ae8-11e8-81e0-7bfd4d57e067 from 0 (zlm3)
 23 2018-08-08T10:54:48.541101 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: b47737d3-9ae8-11e8-81e0-7bfd4d57e067 from 1 (zlm2)
 24 2018-08-08T10:54:48.541140 01:00 0 [Note] WSREP: Quorum results:
 25     version    = 4,
 26     component  = PRIMARY,
 27     conf_id    = 7,
 28     members    = 1/2 (primary/total),
 29     act_id     = 22,
 30     last_appl. = 0,
 31     protocols  = 0/8/3 (gcs/repl/appl),
 32     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 33 2018-08-08T10:54:48.541150 01:00 0 [Note] WSREP: Flow-control interval: [141, 141]
 34 2018-08-08T10:54:48.541155 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
 35 2018-08-08T10:54:48.541224 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
 36 2018-08-08T10:54:48.541234 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 8: Primary, number of nodes: 2, my index: 1, protocol version 3
 37 2018-08-08T10:54:48.541238 01:00 2 [Note] WSREP: Setting wsrep_ready to true
 38 2018-08-08T10:54:48.541241 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 2) (Increment: 1 -> 2)
 39 2018-08-08T10:54:48.541245 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 40 2018-08-08T10:54:48.541252 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
 41 2018-08-08T10:54:48.541264 01:00 0 [Note] WSREP: Service thread queue flushed.
 42 2018-08-08T10:54:49.007421 01:00 0 [Note] WSREP: Member 0.0 (zlm3) requested state transfer from '*any*'. Selected 1.0 (zlm2)(SYNCED) as donor.
 43 2018-08-08T10:54:49.007441 01:00 0 [Note] WSREP: Shifting SYNCED -> DONOR/DESYNCED (TO: 22)
 44 2018-08-08T10:54:49.007480 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 45 2018-08-08T10:54:49.007626 01:00 0 [Note] WSREP: Initiating SST/IST transfer on DONOR side (wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22')
 46 2018-08-08T10:54:49.012384 01:00 2 [Note] WSREP: DONOR thread signaled with 0
 47 2018-08-08T10:54:50.911071 01:00 0 [Note] WSREP: (d4006db4, 'tcp://0.0.0.0:4567') turning message relay requesting off
 48     2018-08-08T08:54:59.535108Z WSREP_SST: [INFO] Streaming the backup to joiner at 192.168.1.102 4444
 49 2018-08-08T10:54:59.626864 01:00 8 [Note] Access denied for user 'sst'@'192.168.1.101' (using password: YES)
 50 2018-08-08T10:55:05.537365 01:00 0 [Note] WSREP: 1.0 (zlm2): State transfer to 0.0 (zlm3) complete.
 51 2018-08-08T10:55:05.537399 01:00 0 [Note] WSREP: Shifting DONOR/DESYNCED -> JOINED (TO: 22)
 52 2018-08-08T10:55:05.542864 01:00 0 [Note] WSREP: Member 1.0 (zlm2) synced with group.
 53 2018-08-08T10:55:05.542949 01:00 0 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 22)
 54 2018-08-08T10:55:05.543015 01:00 2 [Note] WSREP: Synchronized with group, ready for connections
 55 2018-08-08T10:55:05.543022 01:00 2 [Note] WSREP: Setting wsrep_ready to true
 56 2018-08-08T10:55:05.543027 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 57 2018-08-08T10:55:22.477724 01:00 0 [Note] WSREP: forgetting b3de093b (tcp://192.168.1.102:4567)
 58 2018-08-08T10:55:22.479542 01:00 0 [Note] WSREP: Node d4006db4 state primary
 59 2018-08-08T10:55:22.479612 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 60 view (view_id(PRIM,d4006db4,9)
 61 memb {
 62     d4006db4,0
 63     }
 64 joined {
 65     }
 66 left {
 67     }
 68 partitioned {
 69     b3de093b,0
 70     }
 71 )
 72 2018-08-08T10:55:22.479621 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
 73 2018-08-08T10:55:22.479763 01:00 0 [Note] WSREP: forgetting b3de093b (tcp://192.168.1.102:4567)
 74 2018-08-08T10:55:22.479875 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 0, memb_num = 1
 75 2018-08-08T10:55:22.479976 01:00 0 [Note] WSREP: STATE_EXCHANGE: sent state UUID: c8aef280-9ae8-11e8-80c9-d74e514aa266
 76 2018-08-08T10:55:22.479976 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: c8aef280-9ae8-11e8-80c9-d74e514aa266
 77 2018-08-08T10:55:22.479976 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: c8aef280-9ae8-11e8-80c9-d74e514aa266 from 0 (zlm2)
 78 2018-08-08T10:55:22.479978 01:00 0 [Note] WSREP: Quorum results:
 79     version    = 4,
 80     component  = PRIMARY,
 81     conf_id    = 8,
 82     members    = 1/1 (primary/total),
 83     act_id     = 22,
 84     last_appl. = 0,
 85     protocols  = 0/8/3 (gcs/repl/appl),
 86     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 87 2018-08-08T10:55:22.479983 01:00 0 [Note] WSREP: Flow-control interval: [100, 100]
 88 2018-08-08T10:55:22.480000 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
 89 2018-08-08T10:55:22.480032 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
 90 2018-08-08T10:55:22.480037 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 9: Primary, number of nodes: 1, my index: 0, protocol version 3
 91 2018-08-08T10:55:22.480040 01:00 2 [Note] WSREP: Setting wsrep_ready to true
 92 2018-08-08T10:55:22.480043 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 2 -> 1) (Increment: 2 -> 1)
 93 2018-08-08T10:55:22.480046 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 94 2018-08-08T10:55:22.480051 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
 95 2018-08-08T10:55:22.480060 01:00 0 [Note] WSREP: Service thread queue flushed.
 96 2018-08-08T10:55:26.085271 01:00 0 [Note] WSREP: (d4006db4, 'tcp://0.0.0.0:4567') connection established to b3de093b tcp://192.168.1.102:4567
 97 2018-08-08T10:55:26.085306 01:00 0 [Warning] WSREP: discarding established (time wait) b3de093b (tcp://192.168.1.102:4567) 
 98 2018-08-08T10:55:27.948973 01:00 0 [Note] WSREP:  cleaning up b3de093b (tcp://192.168.1.102:4567)
 99 
100 //There's no ERROR messages at all this time.

**Check the table on node zlm2.**

  1 //Let's start the PXC on node zlm3.
  2 [root@zlm3 10:00:12 /data/mysql/mysql3308/data]
  3 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf &
  4 [1] 4181
  5 
  6 [root@zlm3 10:30:43 /data/mysql/mysql3308/data]
  7 #ps aux|grep mysqld
  8 mysql     4181 20.0 16.9 756016 172580 pts/0   Sl   10:30   0:01 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
  9 root      4596  0.0  0.0 112640   960 pts/0    R    10:30   0:00 grep --color=auto mysqld
 10 
 11 [root@zlm3 10:31:10 /data/mysql/mysql3308/data]
 12 #tail -1000 error.log 
 13 2018-08-07T09:54:08.825870 01:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
 14 2018-08-07T09:54:08.825960 01:00 0 [Warning] WSREP: Node is running in bootstrap/initialize mode. Disabling pxc_strict_mode checks
 15 2018-08-07T09:54:08.836945 01:00 0 [Warning] InnoDB: Using innodb_locks_unsafe_for_binlog is DEPRECATED. This option may be removed in future releases. Please use READ COMMITTED transaction isolation level instead; Please refer to http://dev.mysql.com/doc/refman/5.7/en/set-transaction.html
 16  100
 17  100
 18  100
 19  100
 20 2018-08-07T09:54:27.784997 01:00 0 [Warning] InnoDB: New log files created, LSN=45790
 21 2018-08-07T09:54:28.565405 01:00 0 [Warning] InnoDB: Creating foreign key constraint system tables.
 22 2018-08-07T09:54:29.043051 01:00 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 1ca6f9ae-9a17-11e8-9a7c-080027de0e0e.
 23 2018-08-07T09:54:29.054082 01:00 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
 24 2018-08-07T09:54:29.471412 01:00 0 [Warning] CA certificate ca.pem is self signed.
 25 2018-08-07T09:54:29.536187 01:00 1 [Note] A temporary password is generated for root@localhost: ,M3=why-ok&d
 26 2018-08-07T09:55:01.556746 01:00 1 [Warning] 'user' entry 'root@localhost' ignored in --skip-name-resolve mode.
 27 2018-08-07T09:55:01.556802 01:00 1 [Warning] 'user' entry 'mysql.session@localhost' ignored in --skip-name-resolve mode.
 28 2018-08-07T09:55:01.556812 01:00 1 [Warning] 'user' entry 'mysql.sys@localhost' ignored in --skip-name-resolve mode.
 29 2018-08-07T09:55:01.556830 01:00 1 [Warning] 'db' entry 'performance_schema mysql.session@localhost' ignored in --skip-name-resolve mode.
 30 2018-08-07T09:55:01.556837 01:00 1 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.
 31 2018-08-07T09:55:01.556847 01:00 1 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.
 32 2018-08-07T09:55:01.556920 01:00 1 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.
 33 2018-08-07T09:55:01.556931 01:00 1 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.
 34 
 35 //The starting mysqld operation begins here.
 36 2018-08-07T10:30:43.794296 01:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
 37 2018-08-07T10:30:43.801975 01:00 0 [Warning] Insecure configuration for --secure-file-priv: Location is accessible to all OS users. Consider choosing a different directory.
 38 2018-08-07T10:30:43.802040 01:00 0 [Note] mysqld (mysqld 5.7.22-22-29.26-log) starting as process 4181 ...
 39 2018-08-07T10:30:43.805420 01:00 0 [Note] WSREP: Setting wsrep_ready to false //Not ready.
 40 2018-08-07T10:30:43.805476 01:00 0 [Note] WSREP: No pre-stored wsrep-start position found. Skipping position initialization.
 41 2018-08-07T10:30:43.805486 01:00 0 [Note] WSREP: wsrep_load(): loading provider library '/usr/local/mysql/lib/libgalera_smm.so'
 42 2018-08-07T10:30:43.829026 01:00 0 [Note] WSREP: wsrep_load(): Galera 3.26(r) by Codership Oy <info@codership.com> loaded successfully.
 43 2018-08-07T10:30:43.829070 01:00 0 [Note] WSREP: CRC-32C: using hardware acceleration.
 44 2018-08-07T10:30:43.829385 01:00 0 [Warning] WSREP: Could not open state file for reading: '/data/mysql/mysql3308/data//grastate.dat'
 45 2018-08-07T10:30:43.829395 01:00 0 [Warning] WSREP: No persistent state found. Bootstraping with default state
 46 2018-08-07T10:30:43.829432 01:00 0 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1, safe_to_bootstrap: 1
 47 2018-08-07T10:30:43.837823 01:00 0 [Note] WSREP: Passing config to GCS: base_dir = /data/mysql/mysql3308/data/; base_host = 192.168.1.102; base_port = 4567; cert.log_conflicts = no; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 10; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 4; evs.view_forget_timeout = PT24H; gcache.dir = /data/mysql/mysql3308/data/; gcache.freeze_purge_at_seqno = -1; gcache.keep_pages_count = 0; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /data/mysql/mysql3308/data//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gcs.fc_debug = 0; gcs.fc_factor = 1; gcs.fc_limit = 100; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout = PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.recovery = 1; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = PT30S; pc.weight = 1; protonet.backend = asio; protonet.version = 0; repl.causal_read_timeout = PT30S; repl.commit_order = 3; repl.key_format = FLAT8; repl.max_ws_size = 2147483647; repl.proto_max = 8; socket.checksum = 2; socket.recv_buf_size = 212992; 
 48 2018-08-07T10:30:43.861834 01:00 0 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> 00000000-0000-0000-0000-000000000000:-1
 49 2018-08-07T10:30:43.866886 01:00 0 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1
 50 2018-08-07T10:30:43.866919 01:00 0 [Note] WSREP: Preparing to initiate SST/IST //Begin to SST or IST.
 51 2018-08-07T10:30:43.866922 01:00 0 [Note] WSREP: Starting replication
 52 2018-08-07T10:30:43.866936 01:00 0 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1
 53 2018-08-07T10:30:43.867102 01:00 0 [Note] WSREP: Using CRC-32C for message checksums.
 54 2018-08-07T10:30:43.867166 01:00 0 [Note] WSREP: gcomm thread scheduling priority set to other:0 
 55 2018-08-07T10:30:43.869814 01:00 0 [Warning] WSREP: Fail to access the file (/data/mysql/mysql3308/data//gvwstate.dat) error (No such file or directory). It is possible if node is booting for first time or re-booting after a graceful shutdown
 56 2018-08-07T10:30:43.869842 01:00 0 [Note] WSREP: Restoring primary-component from disk failed. Either node is booting for first time or re-booting after a graceful shutdown
 57 2018-08-07T10:30:43.870450 01:00 0 [Note] WSREP: GMCast version 0
 58 2018-08-07T10:30:43.870721 01:00 0 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567
 59 2018-08-07T10:30:43.870729 01:00 0 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') multicast: , ttl: 1
 60 2018-08-07T10:30:43.871017 01:00 0 [Note] WSREP: EVS version 0
 61 2018-08-07T10:30:43.871191 01:00 0 [Note] WSREP: gcomm: connecting to group 'pxc_wubx', peer '192.168.1.101:,192.168.1.102:,192.168.103:'
 62 2018-08-07T10:30:43.873170 01:00 0 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') connection established to 2cf33746 tcp://192.168.1.102:4567
 63 2018-08-07T10:30:43.873199 01:00 0 [Warning] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') address 'tcp://192.168.1.102:4567' points to own listening address, blacklisting
 64 2018-08-07T10:30:43.873754 01:00 0 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') connection established to bd54497d tcp://192.168.1.101:4567
 65 2018-08-07T10:30:43.873806 01:00 0 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
 66 2018-08-07T10:30:44.373051 01:00 0 [Note] WSREP: declaring bd54497d at tcp://192.168.1.101:4567 stable
 67 2018-08-07T10:30:44.373698 01:00 0 [Note] WSREP: Node bd54497d state primary
 68 2018-08-07T10:30:44.374205 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 69 view (view_id(PRIM,2cf33746,2)
 70 memb {
 71     2cf33746,0 //This is node zlm2,first one started the cluster.
 72     bd54497d,0 //This is node zlm3.
 73     }
 74 joined {
 75     }
 76 left {
 77     }
 78 partitioned {
 79     }
 80 )
 81 2018-08-07T10:30:44.374227 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
 82 2018-08-07T10:30:44.374354 01:00 0 [Note] WSREP: discarding pending addr without UUID: tcp://192.168.0.103:4567
 83 2018-08-07T10:30:44.374361 01:00 0 [Note] WSREP: discarding pending addr proto entry 0x378db50
 84 2018-08-07T10:30:44.872036 01:00 0 [Note] WSREP: gcomm: connected
 85 2018-08-07T10:30:44.872107 01:00 0 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)
 86 2018-08-07T10:30:44.872173 01:00 0 [Note] WSREP: Waiting for SST/IST to complete.
 87 2018-08-07T10:30:44.872327 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 0, memb_num = 2
 88 2018-08-07T10:30:44.872840 01:00 0 [Note] WSREP: STATE_EXCHANGE: sent state UUID: 2d8c2e2a-9a1c-11e8-8388-a6fcb0b47ae5
 89 2018-08-07T10:30:44.873577 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 2d8c2e2a-9a1c-11e8-8388-a6fcb0b47ae5
 90 2018-08-07T10:30:44.874140 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 2d8c2e2a-9a1c-11e8-8388-a6fcb0b47ae5 from 0 (zlm3)
 91 2018-08-07T10:30:44.874158 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 2d8c2e2a-9a1c-11e8-8388-a6fcb0b47ae5 from 1 (zlm2)
 92 2018-08-07T10:30:44.874169 01:00 0 [Note] WSREP: Quorum results:
 93     version    = 4,
 94     component  = PRIMARY,
 95     conf_id    = 1,
 96     members    = 1/2 (primary/total),
 97     act_id     = 18,
 98     last_appl. = -1,
 99     protocols  = 0/8/3 (gcs/repl/appl),
100     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
101 2018-08-07T10:30:44.874173 01:00 0 [Note] WSREP: Flow-control interval: [141, 141] //The scope of fc interval.
102 2018-08-07T10:30:44.874176 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
103 2018-08-07T10:30:44.874179 01:00 0 [Note] WSREP: Shifting OPEN -> PRIMARY (TO: 18)
104 2018-08-07T10:30:44.874224 01:00 2 [Note] WSREP: State transfer required: 
105     Group state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:18
106     Local state: 00000000-0000-0000-0000-000000000000:-1
107 2018-08-07T10:30:44.874231 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
108 2018-08-07T10:30:44.874237 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:18, view# 2: Primary, number of nodes: 2, my index: 0, protocol version 3
109 2018-08-07T10:30:44.874241 01:00 2 [Note] WSREP: Setting wsrep_ready to true
110 2018-08-07T10:30:44.874243 01:00 2 [Warning] WSREP: Gap in state sequence. Need state transfer.
111 2018-08-07T10:30:44.874245 01:00 2 [Note] WSREP: Setting wsrep_ready to false
112 2018-08-07T10:30:44.874315 01:00 0 [Note] WSREP: Initiating SST/IST transfer on JOINER side (wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4181' --binlog '/data/mysql/mysql3308/logs/mysql-bin' )
113 which: no socat in (/usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin)
114     2018-08-07T08:30:45.523175Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
115     2018-08-07T08:30:45.524742Z WSREP_SST: [ERROR] socat not found in path: /usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin
116     2018-08-07T08:30:45.525848Z WSREP_SST: [ERROR] ****************************************************** 
117 2018-08-07T10:30:45.526151 01:00 0 [ERROR] WSREP: Failed to read 'ready <addr>' from: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4181' --binlog '/data/mysql/mysql3308/logs/mysql-bin' 
118     Read: '(null)'
119 2018-08-07T10:30:45.526151 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4181' --binlog '/data/mysql/mysql3308/logs/mysql-bin' : 2 (No such file or directory)
120 2018-08-07T10:30:45.526201 01:00 2 [ERROR] WSREP: Failed to prepare for 'xtrabackup-v2' SST. Unrecoverable.
121 2018-08-07T10:30:45.526208 01:00 2 [ERROR] Aborting
122 
123 2018-08-07T10:30:45.526211 01:00 2 [Note] Giving 2 client threads a chance to die gracefully
124 2018-08-07T10:30:47.373430 01:00 0 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') turning message relay requesting off
125 2018-08-07T10:30:47.526391 01:00 2 [Note] WSREP: Closing send monitor...
126 2018-08-07T10:30:47.526431 01:00 2 [Note] WSREP: Closed send monitor.
127 2018-08-07T10:30:47.526455 01:00 2 [Note] WSREP: gcomm: terminating thread
128 2018-08-07T10:30:47.526465 01:00 2 [Note] WSREP: gcomm: joining thread
129 2018-08-07T10:30:47.526479 01:00 1 [Note] WSREP: rollbacker thread exiting
130 2018-08-07T10:30:47.526675 01:00 2 [Note] WSREP: gcomm: closing backend
131 2018-08-07T10:30:50.874663 01:00 2 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') connection to peer bd54497d with addr tcp://192.168.1.101:4567 timed out, no messages seen in PT3S (gmcast.peer_timeout)
132 2018-08-07T10:30:50.874839 01:00 2 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: tcp://192.168.1.101:4567 
133 2018-08-07T10:30:51.877925 01:00 2 [Note] WSREP: (2cf33746, 'tcp://0.0.0.0:4567') reconnecting to bd54497d (tcp://192.168.1.101:4567), attempt 0
134 2018-08-07T10:30:53.026867 01:00 2 [Note] WSREP: declaring node with index 1 suspected, timeout PT5S (evs.suspect_timeout)
135 2018-08-07T10:30:53.027032 01:00 2 [Note] WSREP: evs::proto(2cf33746, LEAVING, view_id(REG,2cf33746,2)) suspecting node: bd54497d
136 2018-08-07T10:30:53.027042 01:00 2 [Note] WSREP: evs::proto(2cf33746, LEAVING, view_id(REG,2cf33746,2)) suspected node without join message, declaring inactive
137 2018-08-07T10:30:53.027063 01:00 2 [Note] WSREP: Current view of cluster as seen by this node
138 view (view_id(NON_PRIM,2cf33746,2)
139 memb {
140     2cf33746,0 //Only remains the first node zlm2.
141     }
142 joined {
143     }
144 left {
145     }
146 partitioned {
147     bd54497d,0 //Node zlm3 became a suspected node and be moved here.
148     }
149 )
150 2018-08-07T10:30:53.027092 01:00 2 [Note] WSREP: Current view of cluster as seen by this node
151 view ((empty))
152 2018-08-07T10:30:53.027370 01:00 2 [Note] WSREP: gcomm: closed
153 2018-08-07T10:30:53.027421 01:00 0 [Note] WSREP: New COMPONENT: primary = no, bootstrap = no, my_idx = 0, memb_num = 1
154 2018-08-07T10:30:53.027435 01:00 0 [Note] WSREP: Flow-control interval: [100, 100]
155 2018-08-07T10:30:53.027438 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
156 2018-08-07T10:30:53.027443 01:00 0 [Note] WSREP: Received NON-PRIMARY.
157 2018-08-07T10:30:53.027447 01:00 0 [Note] WSREP: Shifting PRIMARY -> OPEN (TO: 18)
158 2018-08-07T10:30:53.027458 01:00 0 [Note] WSREP: Received self-leave message.
159 2018-08-07T10:30:53.027463 01:00 0 [Note] WSREP: Flow-control interval: [0, 0]
160 2018-08-07T10:30:53.027466 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
161 2018-08-07T10:30:53.027469 01:00 0 [Note] WSREP: Received SELF-LEAVE. Closing connection.
162 2018-08-07T10:30:53.027472 01:00 0 [Note] WSREP: Shifting OPEN -> CLOSED (TO: 18)
163 2018-08-07T10:30:53.027477 01:00 0 [Note] WSREP: RECV thread exiting 0: Success
164 2018-08-07T10:30:53.027719 01:00 2 [Note] WSREP: recv_thread() joined.
165 2018-08-07T10:30:53.027732 01:00 2 [Note] WSREP: Closing replication queue.
166 2018-08-07T10:30:53.027738 01:00 2 [Note] WSREP: Closing slave action queue.
167 2018-08-07T10:30:53.027796 01:00 0 [Note] WSREP: Waiting for active wsrep applier to exit
168 2018-08-07T10:30:53.027804 01:00 0 [Note] WSREP: Service disconnected.
169 2018-08-07T10:30:53.027807 01:00 0 [Note] WSREP: Waiting to close threads......
170 2018-08-07T10:30:58.028048 01:00 0 [Note] WSREP: Some threads may fail to exit.
171 2018-08-07T10:30:58.028088 01:00 0 [Note] Binlog end
172 2018-08-07T10:30:58.028341 01:00 0 [Note] mysqld: Shutdown complete
173 
174 [root@zlm3 10:35:04 /data/mysql/mysql3308/data]
175 #ps aux|grep mysqld
176 root      4672  0.0  0.0 112640   960 pts/0    R    10:35   0:00 grep --color=auto mysqld
177 
178 //Let's see the detail of ERROR message.
179 [root@zlm3 10:35:06 /data/mysql/mysql3308/data]
180 #cat error.log |grep ERROR
181     2018-08-07T08:30:45.523175Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
182     2018-08-07T08:30:45.524742Z WSREP_SST: [ERROR] socat not found in path: /usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin
183     2018-08-07T08:30:45.525848Z WSREP_SST: [ERROR] ****************************************************** 
184 2018-08-07T10:30:45.526151 01:00 0 [ERROR] WSREP: Failed to read 'ready <addr>' from: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4181' --binlog '/data/mysql/mysql3308/logs/mysql-bin' 
185 2018-08-07T10:30:45.526151 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4181' --binlog '/data/mysql/mysql3308/logs/mysql-bin' : 2 (No such file or directory)
186 2018-08-07T10:30:45.526201 01:00 2 [ERROR] WSREP: Failed to prepare for 'xtrabackup-v2' SST. Unrecoverable.
187 2018-08-07T10:30:45.526208 01:00 2 [ERROR] Aborting
188 
189 //It says that we are absent of "socat" package.
190 
191 [root@zlm3 10:43:15 /data/mysql/mysql3308/data]
192 #yum install socat
193 ... //Omitted.
194 
195 Warning: RPMDB altered outside of yum.
196   Installing : socat-1.7.3.2-2.el7.x86_64                                                                                                        1/1 
197   Verifying  : socat-1.7.3.2-2.el7.x86_64                                                                                                        1/1 
198 
199 Installed:
200   socat.x86_64 0:1.7.3.2-2.el7                                                                                                                       
201 
202 Complete!
203 
204 //Start the PXC on zlm2 again.
205 [root@zlm3 10:35:58 /data/mysql/mysql3308/data]
206 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf &
207 [1] 4725
208 
209 [root@zlm3 10:53:02 /data/mysql/mysql3308/data]
210 #tail -f error.log 
211 2018-08-07T10:53:15.116919 01:00 0 [Note] WSREP: Member 0.0 (zlm3) requested state transfer from '*any*'. Selected 1.0 (zlm2)(SYNCED) as donor.
212 2018-08-07T10:53:15.117004 01:00 0 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 18)
213 2018-08-07T10:53:15.117035 01:00 2 [Note] WSREP: Requesting state transfer: success, donor: 1
214 2018-08-07T10:53:15.117051 01:00 2 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> bd5525ab-9a15-11e8-aa0f-4b830c783fc7:18
215 2018-08-07T10:53:15.696885 01:00 0 [Warning] WSREP: 1.0 (zlm2): State transfer to 0.0 (zlm3) failed: -2 (No such file or directory)
216 2018-08-07T10:53:15.696918 01:00 0 [ERROR] WSREP: gcs/src/gcs_group.cpp:gcs_group_handle_join_msg():766: Will never receive state. Need to abort.
217 2018-08-07T10:53:15.696940 01:00 0 [Note] WSREP: gcomm: terminating thread
218 2018-08-07T10:53:15.696949 01:00 0 [Note] WSREP: gcomm: joining thread
219 2018-08-07T10:53:15.697076 01:00 0 [Note] WSREP: gcomm: closing backend
220 2018-08-07T10:53:17.026257 01:00 0 [Note] WSREP: (5167e9c7, 'tcp://0.0.0.0:4567') turning message relay requesting off
221 2018-08-07T10:53:19.026327 01:00 0 [Note] WSREP: (5167e9c7, 'tcp://0.0.0.0:4567') connection to peer bd54497d with addr tcp://192.168.1.101:4567 timed out, no messages seen in PT3S (gmcast.peer_timeout)
222 2018-08-07T10:53:19.026394 01:00 0 [Note] WSREP: (5167e9c7, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: tcp://192.168.1.101:4567 
223 2018-08-07T10:53:20.086590 01:00 0 [Note] WSREP: (5167e9c7, 'tcp://0.0.0.0:4567') reconnecting to bd54497d (tcp://192.168.1.101:4567), attempt 0
224 2018-08-07T10:53:20.786605 01:00 0 [Note] WSREP: declaring node with index 1 suspected, timeout PT5S (evs.suspect_timeout)
225 2018-08-07T10:53:20.786778 01:00 0 [Note] WSREP: evs::proto(5167e9c7, LEAVING, view_id(REG,5167e9c7,4)) suspecting node: bd54497d
226 2018-08-07T10:53:20.786826 01:00 0 [Note] WSREP: evs::proto(5167e9c7, LEAVING, view_id(REG,5167e9c7,4)) suspected node without join message, declaring inactive
227 2018-08-07T10:53:20.786941 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
228 view (view_id(NON_PRIM,5167e9c7,4)
229 memb {
230     5167e9c7,0
231     }
232 joined {
233     }
234 left {
235     }
236 partitioned {
237     bd54497d,0
238     }
239 )
240 2018-08-07T10:53:20.787061 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
241 view ((empty))
242 2018-08-07T10:53:20.787324 01:00 0 [Note] WSREP: gcomm: closed
243 2018-08-07T10:53:20.787362 01:00 0 [Note] WSREP: mysqld: Terminated.
244 ^C
245 
246 [root@zlm3 10:53:48 /data/mysql/mysql3308/data]
247 #cat error.log |grep ERROR
248 2018-08-07T10:53:15.696918 01:00 0 [ERROR] WSREP: gcs/src/gcs_group.cpp:gcs_group_handle_join_msg():766: Will never receive state. Need to abort.
249     
250 [root@zlm3 11:13:14 /data/mysql/mysql3308/data]
251 #ps aux|grep mysqld
252 root      6785  0.0  0.0 112640   960 pts/0    R    11:20   0:00 grep --color=auto mysqld
253 [1]   Aborted                 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
254 
255 [root@zlm3 11:20:16 /data/mysql/mysql3308/data]
256 #cat error.log |grep ERROR
257 2018-08-07T11:13:15.619315 01:00 0 [ERROR] WSREP: gcs/src/gcs_group.cpp:gcs_group_handle_join_msg():766: Will never receive state. Need to abort.
258     2018-08-07T09:13:45.246252Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
259     2018-08-07T09:13:45.247507Z WSREP_SST: [ERROR] Error while getting data from donor node:  exit codes: 255 0
260     2018-08-07T09:13:45.254423Z WSREP_SST: [ERROR] ****************************************************** 
261     2018-08-07T09:13:45.258735Z WSREP_SST: [ERROR] Cleanup after exit with status:32
262     2018-08-07T09:14:10.137993Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
263     2018-08-07T09:14:10.139033Z WSREP_SST: [ERROR] Possible timeout in receving first data from donor in gtid/keyring stage
264     2018-08-07T09:14:10.140912Z WSREP_SST: [ERROR] ****************************************************** 
265     2018-08-07T09:14:10.141951Z WSREP_SST: [ERROR] Cleanup after exit with status:32
266     
267 //There's still one error which cause the mysqld process cannot be started.

 

 

 1 [root@zlm2 09:08:15 ~]
 2 #mysql -uzlm -pzlmzlm -h192.168.1.101 -P3308
 3 mysql: [Warning] Using a password on the command line interface can be insecure.
 4 Welcome to the MySQL monitor.  Commands end with ; or g.
 5 Your MySQL connection id is 9
 6 Server version: 5.7.22-22-29.26-log Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
 7 
 8 Copyright (c) 2009-2018 Percona LLC and/or its affiliates
 9 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
10 
11 Oracle is a registered trademark of Oracle Corporation and/or its
12 affiliates. Other names may be trademarks of their respective
13 owners.
14 
15 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
16 
17 (zlm@192.168.1.101 3308)[(none)]>select * from zlm.t1;
18  ---- ------------ 
19 | id | name       |
20  ---- ------------ 
21 |  1 | MySQL      |
22 |  2 | Oracle     |
23 |  3 | PostgreSQL |
24  ---- ------------ 
25 3 rows in set (0.00 sec)
26 
27 //The PXC is working normally now.

 

Check target table on master.

Suplemented on August 9.

 

Start mysqld of PXC on node zlm4.

 1 zlm@192.168.56.100:3306 [sysbench]>show tables;
 2  -------------------- 
 3 | Tables_in_sysbench |
 4  -------------------- 
 5 | sbtest1            |
 6 | sbtest2            |
 7 | sbtest3            |
 8 | sbtest4            |
 9 | sbtest5            |
10 | sbtest6            |
11  -------------------- 
12 6 rows in set (0.00 sec)
13 
14 zlm@192.168.56.100:3306 [sysbench]>select count(*) from sbtest6;
15  ---------- 
16 | count(*) |
17  ---------- 
18 |        0 |
19  ---------- 
20 1 row in set (0.00 sec)
21 
22 zlm@192.168.56.100:3306 [sysbench]>insert into sbtest6 values(1,1,'a','b');
23 Query OK, 1 row affected (0.00 sec)
24 
25 zlm@192.168.56.100:3306 [sysbench]>select * from sbtest6;
26  ---- --- --- ----- 
27 | id | k | c | pad |
28  ---- --- --- ----- 
29 |  1 | 1 | a | b   |
30  ---- --- --- ----- 
31 1 row in set (0.00 sec)

 

**Generate a backup set by Xtrabackup on node zlm3.**

 1 [root@zlm4 11:27:18 /data/mysql/mysql3308/data]
 2 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf initialize
 3 
 4 [root@zlm4 11:27:37 /data/mysql/mysql3308/data]
 5 #ls -l
 6 total 131092
 7 -rw-r----- 1 mysql mysql     13275 Aug  7 11:27 error.log
 8 -rw-r----- 1 mysql mysql 134219048 Aug  7 11:27 galera.cache
 9 -rw-r----- 1 mysql mysql         0 Aug  7 11:27 grastate.dat
10 
11 [root@zlm4 11:27:48 /data/mysql/mysql3308/data]
12 #cat error.log |grep ERROR
13     2018-08-07T09:27:24.770212Z WSREP_SST: [ERROR] ******************* FATAL ERROR ********************** 
14     2018-08-07T09:27:24.771275Z WSREP_SST: [ERROR] xtrabackup not in path: /usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/root/perl5/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin
15     2018-08-07T09:27:24.771951Z WSREP_SST: [ERROR] ****************************************************** 
16 2018-08-07T11:27:24.772254 01:00 0 [ERROR] WSREP: Failed to read 'ready <addr>' from: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4363' --binlog '/data/mysql/mysql3308/logs/mysql-bin' 
17 2018-08-07T11:27:24.772279 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '4363' --binlog '/data/mysql/mysql3308/logs/mysql-bin' : 2 (No such file or directory)
18 2018-08-07T11:27:24.772317 01:00 1 [ERROR] WSREP: Failed to prepare for 'xtrabackup-v2' SST. Unrecoverable.
19 2018-08-07T11:27:24.772322 01:00 1 [ERROR] Aborting
20 
21 [root@zlm4 11:28:39 /data/mysql/mysql3308/data]
22 #innobackupex --help
23 -bash: innobackupex: command not found
24 
25 //It's due to absence of Xtrabackup tools on node zlm4.

 

    The error above was due to the parameter of "innodb_log_group_home_dir",after I omitted it,there was no error message any more.

 1 [root@zlm3 09:25:44 ~]
 2 #innobackupex --defaults-file=/data/mysql/mysql3308/my3308.cnf --user=root --password=Passw0rd --host=localhost -S /tmp/mysql3308.sock --port=3308 /data/backup
 3 xtrabackup: recognized server arguments: --datadir=/data/mysql/mysql3308/data --server-id=1023308 --open_files_limit=65536 --log_bin=/data/mysql/mysql3308/logs/mysql-bin --innodb_data_file_path=ibdata1:100M:autoextend --innodb_buffer_pool_filename=ib_buffer_pool --innodb_log_files_in_group=3 --innodb_log_file_size=100M --innodb_file_per_table=1 --innodb_open_files=65535 --innodb_page_size=16k --innodb_read_io_threads=4 --innodb_write_io_threads=4 --innodb_io_capacity=200 --innodb_doublewrite=1 --innodb_log_buffer_size=128M --innodb_flush_log_at_trx_commit=1 --innodb_buffer_pool_size=100M --innodb_flush_method=O_DIRECT 
 4 xtrabackup: recognized client arguments: --datadir=/data/mysql/mysql3308/data --server-id=1023308 --open_files_limit=65536 --log_bin=/data/mysql/mysql3308/logs/mysql-bin --innodb_data_file_path=ibdata1:100M:autoextend --innodb_buffer_pool_filename=ib_buffer_pool --innodb_log_files_in_group=3 --innodb_log_file_size=100M --innodb_file_per_table=1 --innodb_open_files=65535 --innodb_page_size=16k --innodb_read_io_threads=4 --innodb_write_io_threads=4 --innodb_io_capacity=200 --innodb_doublewrite=1 --innodb_log_buffer_size=128M --innodb_flush_log_at_trx_commit=1 --innodb_buffer_pool_size=100M --innodb_flush_method=O_DIRECT 
 5 180809 09:26:05 innobackupex: Starting the backup operation
 6 
 7 ... //Omitted.
 8 
 9 180809 09:26:17 Finished backing up non-InnoDB tables and files
10 180809 09:26:17 Executing LOCK BINLOG FOR BACKUP... //Here's the difference of lock mode between community and percona version of MySQL.
11 180809 09:26:17 [00] Writing /data/backup/2018-08-09_09-26-05/xtrabackup_binlog_info
12 180809 09:26:17 [00]        ...done
13 180809 09:26:17 Executing FLUSH NO_WRITE_TO_BINLOG ENGINE LOGS...
14 xtrabackup: The latest check point (for incremental): '2626843'
15 xtrabackup: Stopping log copying thread.
16 .180809 09:26:17 >> log scanned up to (2626852)
17 
18 180809 09:26:17 Executing UNLOCK BINLOG
19 180809 09:26:17 Executing UNLOCK TABLES
20 180809 09:26:17 All tables unlocked
21 180809 09:26:17 [00] Copying ib_buffer_pool to /data/backup/2018-08-09_09-26-05/ib_buffer_pool
22 180809 09:26:17 [00]        ...done
23 180809 09:26:17 Backup created in directory '/data/backup/2018-08-09_09-26-05/'
24 MySQL binlog position: filename 'mysql-bin.000023', position '1107', GTID of the last change '42aada54-65ea-ee17-55f0-b47cf387c038:1-23'
25 180809 09:26:17 [00] Writing /data/backup/2018-08-09_09-26-05/backup-my.cnf
26 180809 09:26:17 [00]        ...done
27 180809 09:26:17 [00] Writing /data/backup/2018-08-09_09-26-05/xtrabackup_info
28 180809 09:26:17 [00]        ...done
29 xtrabackup: Transaction log of lsn (2626827) to (2626852) was copied.
30 180809 09:26:17 completed OK!

 

Generate Xtrabackup backup set.

 

 

 

 1 [root@zlm1 16:32:14 ~]
 2 #innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -pPassw0rd /data/backup
 3 180729 16:32:20 innobackupex: Error: extra argument found -pPassw0rd
 4 180729 16:32:20 innobackupex: Error: extra argument found /data/backup
 5 
 6 [root@zlm1 16:32:20 ~]
 7 #innobackupex -v
 8 innobackupex version 2.4.4 Linux (x86_64) (revision id: df58cf2)
 9 
10 [root@zlm1 16:32:26 ~]
11 #innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf --user=root --password=Passw0rd /data/backup
12 180729 16:32:33 innobackupex: Starting the backup operation
13 ...
14 
15 180729 16:32:53 Backup created in directory '/data/backup/2018-07-29_16-32-33'
16 MySQL binlog position: filename 'mysql-bin.000100', position '476', GTID of the last change '2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694'
17 180729 16:32:53 [00] Writing backup-my.cnf
18 180729 16:32:53 [00]        ...done
19 180729 16:32:53 [00] Writing xtrabackup_info
20 180729 16:32:53 [00]        ...done
21 xtrabackup: Transaction log of lsn (1719676169) to (1719676178) was copied.
22 180729 16:32:53 completed OK!

Evidence on node zlm2.

**Copy the backup set to node zlm4.**

 

 

1 [root@zlm3 09:31:07 ~]
2 #scp -r /data/backup/2018-08-09_09-26-05/ zlm4:/data/backup/
3 root@zlm4's password: 
4 xtrabackup_logfile                                                                                                 100% 2560     2.5KB/s   00:00    
5 ibdata1                                                                                                            100%  100MB  33.3MB/s   00:03    
6 plugin.ibd                                                                                                         100%   96KB  96.0KB/s   00:00    
7 servers.ibd                                                                                                        100%   96KB  96.0KB/s   00:00
8 ... //Omitted.

Insert one record of "sbtest6" and drop it.

 1 //Start the PCX on node zlm2.
 2 [root@zlm2 04:06:43 ~]
 3 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster &
 4 [1] 4116
 5 
 6 //The error log of node zlm2 when node zlm3 is joining the cluster.
 7 2018-08-09T04:08:43.185049 01:00 0 [Note] WSREP: (13eae368, 'tcp://0.0.0.0:4567') connection established to 23fb8f7a tcp://192.168.1.102:4567
 8 2018-08-09T04:08:43.185703 01:00 0 [Note] WSREP: (13eae368, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
 9 2018-08-09T04:08:43.683941 01:00 0 [Note] WSREP: declaring 23fb8f7a at tcp://192.168.1.102:4567 stable
10 2018-08-09T04:08:43.684321 01:00 0 [Note] WSREP: Node 13eae368 state primary
11 2018-08-09T04:08:43.684954 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
12 view (view_id(PRIM,13eae368,2)
13 memb {
14     13eae368,0
15     23fb8f7a,0
16     }
17 joined {
18     }
19 left {
20     }
21 partitioned {
22     }
23 )
24 2018-08-09T04:08:43.684992 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
25 2018-08-09T04:08:43.685286 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 0, memb_num = 2
26 2018-08-09T04:08:43.685750 01:00 0 [Note] WSREP: STATE_EXCHANGE: sent state UUID: 24481910-9b79-11e8-b078-6a52474ad103
27 2018-08-09T04:08:43.688438 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 24481910-9b79-11e8-b078-6a52474ad103
28 2018-08-09T04:08:43.688976 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 24481910-9b79-11e8-b078-6a52474ad103 from 0 (zlm2)
29 2018-08-09T04:08:44.194166 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 24481910-9b79-11e8-b078-6a52474ad103 from 1 (zlm3)
30 2018-08-09T04:08:44.194203 01:00 0 [Note] WSREP: Quorum results:
31     version    = 4,
32     component  = PRIMARY,
33     conf_id    = 1,
34     members    = 1/2 (primary/total),
35     act_id     = 22,
36     last_appl. = 0,
37     protocols  = 0/8/3 (gcs/repl/appl),
38     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
39 2018-08-09T04:08:44.194210 01:00 0 [Note] WSREP: Flow-control interval: [141, 141]
40 2018-08-09T04:08:44.194213 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
41 2018-08-09T04:08:44.194278 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
42 2018-08-09T04:08:44.194285 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 2: Primary, number of nodes: 2, my index: 0, protocol version 3
43 2018-08-09T04:08:44.194288 01:00 2 [Note] WSREP: Setting wsrep_ready to true
44 2018-08-09T04:08:44.194315 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 1) (Increment: 1 -> 2)
45 2018-08-09T04:08:44.194320 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
46 2018-08-09T04:08:44.194327 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
47 2018-08-09T04:08:44.194337 01:00 0 [Note] WSREP: Service thread queue flushed.
48 2018-08-09T04:08:44.870138 01:00 0 [Note] WSREP: Member 1.0 (zlm3) requested state transfer from '*any*'. Selected 0.0 (zlm2)(SYNCED) as donor.
49 2018-08-09T04:08:44.870160 01:00 0 [Note] WSREP: Shifting SYNCED -> DONOR/DESYNCED (TO: 22)
50 2018-08-09T04:08:44.870209 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
51 2018-08-09T04:08:44.870406 01:00 0 [Note] WSREP: Initiating SST/IST transfer on DONOR side (wsrep_sst_xtrabackup-v2 --role 'donor' --address '192.168.1.102:4444/xtrabackup_sst//1' --socket '/tmp/mysql3308.sock' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix ''  --binlog '/data/mysql/mysql3308/logs/mysql-bin' --gtid 'bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22')
52 2018-08-09T04:08:44.872063 01:00 2 [Note] WSREP: DONOR thread signaled with 0
53 2018-08-09T04:08:46.270023 01:00 0 [Note] WSREP: (13eae368, 'tcp://0.0.0.0:4567') turning message relay requesting off
54     2018-08-09T02:08:55.527214Z WSREP_SST: [INFO] Streaming the backup to joiner at 192.168.1.102 4444
55 2018-08-09T04:08:55.751008 01:00 4 [Note] Access denied for user 'sst'@'192.168.1.101' (using password: YES)
56 2018-08-09T04:09:03.636264 01:00 0 [Note] WSREP: 0.0 (zlm2): State transfer to 1.0 (zlm3) complete.
57 2018-08-09T04:09:03.636295 01:00 0 [Note] WSREP: Shifting DONOR/DESYNCED -> JOINED (TO: 22)
58 2018-08-09T04:09:03.647735 01:00 0 [Note] WSREP: Member 0.0 (zlm2) synced with group.
59 2018-08-09T04:09:03.647805 01:00 0 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 22)
60 2018-08-09T04:09:03.647828 01:00 2 [Note] WSREP: Synchronized with group, ready for connections
61 2018-08-09T04:09:03.647833 01:00 2 [Note] WSREP: Setting wsrep_ready to true
62 2018-08-09T04:09:03.647837 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
63 2018-08-09T04:09:23.739120 01:00 0 [Note] WSREP: 1.0 (zlm3): State transfer from 0.0 (zlm2) complete.
64 2018-08-09T04:09:23.739901 01:00 0 [Note] WSREP: Member 1.0 (zlm3) synced with group.

 

 1 zlm@192.168.56.100:3306 [sysbench]>insert into sbtest6 values(2,2,'c','d');
 2 Query OK, 1 row affected (0.00 sec)
 3 
 4 zlm@192.168.56.100:3306 [sysbench]>show master status;
 5  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
 6 | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                               |
 7  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
 8 | mysql-bin.000100 |      758 |              |                  | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715695 |
 9  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
10 1 row in set (0.00 sec)
11 
12 zlm@192.168.56.100:3306 [sysbench]>drop tables sbtest6;
13 Query OK, 0 rows affected (0.02 sec)
14 
15 zlm@192.168.56.100:3306 [sysbench]>show master status;
16  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
17 | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                               |
18  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
19 | mysql-bin.000100 |      951 |              |                  | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715696 |
20  ------------------ ---------- -------------- ------------------ ------------------------------------------------- 
21 1 row in set (0.00 sec)

 

**Restore backup on node zlm4.**

 

Evidence on node zlm3(using xtrabackup-v2 mothed of sst).**

 

Shutdown the mysqld on master(mimic the MySQL instance down).

  1 //Start the PCX on node zlm3.
  2 [root@zlm3 04:08:37 /data/mysql/mysql3308]
  3 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf &
  4 [1] 3893
  5 
  6 [root@zlm3 04:08:42 /data/mysql/mysql3308]
  7 #ps aux|grep mysqld
  8 mysql     3893  3.1 21.1 1574664 215668 pts/0  Sl   04:08   0:02 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
  9 root      4537  0.0  0.0 112640   956 pts/0    R    04:09   0:00 grep --color=auto mysqld
 10 
 11 //The intact error log of node zlm3 when joining the cluster.
 12 [root@zlm3 04:08:31 /data/mysql/mysql3308/data]
 13 #tail -f error.log 
 14 
 15 2018-08-09T04:08:43.084230 01:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
 16 2018-08-09T04:08:43.089848 01:00 0 [Warning] Insecure configuration for --secure-file-priv: Location is accessible to all OS users. Consider choosing a different directory.
 17 2018-08-09T04:08:43.089906 01:00 0 [Note] mysqld (mysqld 5.7.22-22-29.26-log) starting as process 3893 ...
 18 2018-08-09T04:08:43.109751 01:00 0 [Note] WSREP: Setting wsrep_ready to false
 19 2018-08-09T04:08:43.109768 01:00 0 [Note] WSREP: No pre-stored wsrep-start position found. Skipping position initialization.
 20 2018-08-09T04:08:43.109772 01:00 0 [Note] WSREP: wsrep_load(): loading provider library '/usr/local/mysql/lib/libgalera_smm.so'
 21 2018-08-09T04:08:43.129981 01:00 0 [Note] WSREP: wsrep_load(): Galera 3.26(r) by Codership Oy <info@codership.com> loaded successfully.
 22 2018-08-09T04:08:43.130124 01:00 0 [Note] WSREP: CRC-32C: using hardware acceleration.
 23 2018-08-09T04:08:43.130414 01:00 0 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1, safe_to_bootstrap: 1
 24 2018-08-09T04:08:43.141875 01:00 0 [Note] WSREP: Passing config to GCS: base_dir = /data/mysql/mysql3308/data/; base_host = 192.168.1.102; base_port = 4567; cert.log_conflicts = no; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 10; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 4; evs.view_forget_timeout = PT24H; gcache.dir = /data/mysql/mysql3308/data/; gcache.freeze_purge_at_seqno = -1; gcache.keep_pages_count = 0; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /data/mysql/mysql3308/data//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gcs.fc_debug = 0; gcs.fc_factor = 1; gcs.fc_limit = 100; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout = PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.recovery = 1; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = PT30S; pc.weight = 1; protonet.backend = asio; protonet.version = 0; repl.causal_read_timeout = PT30S; repl.commit_order = 3; repl.key_format = FLAT8; repl.max_ws_size = 2147483647; repl.proto_max = 8; socket.checksum = 2; socket.recv_buf_size = 212992; 
 25 2018-08-09T04:08:43.179573 01:00 0 [Note] WSREP: GCache history reset: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:0 -> 00000000-0000-0000-0000-000000000000:-1
 26 2018-08-09T04:08:43.183306 01:00 0 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1
 27 2018-08-09T04:08:43.183338 01:00 0 [Note] WSREP: Preparing to initiate SST/IST
 28 2018-08-09T04:08:43.183342 01:00 0 [Note] WSREP: Starting replication
 29 2018-08-09T04:08:43.183355 01:00 0 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1
 30 2018-08-09T04:08:43.183507 01:00 0 [Note] WSREP: Using CRC-32C for message checksums.
 31 2018-08-09T04:08:43.183568 01:00 0 [Note] WSREP: gcomm thread scheduling priority set to other:0 
 32 2018-08-09T04:08:43.183674 01:00 0 [Warning] WSREP: Fail to access the file (/data/mysql/mysql3308/data//gvwstate.dat) error (No such file or directory). It is possible if node is booting for first time or re-booting after a graceful shutdown
 33 2018-08-09T04:08:43.183679 01:00 0 [Note] WSREP: Restoring primary-component from disk failed. Either node is booting for first time or re-booting after a graceful shutdown
 34 2018-08-09T04:08:43.184132 01:00 0 [Note] WSREP: GMCast version 0
 35 2018-08-09T04:08:43.184337 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567
 36 2018-08-09T04:08:43.184344 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') multicast: , ttl: 1
 37 2018-08-09T04:08:43.184483 01:00 0 [Note] WSREP: EVS version 0
 38 2018-08-09T04:08:43.184957 01:00 0 [Note] WSREP: gcomm: connecting to group 'pxc_wubx', peer '192.168.1.101:,192.168.1.102:,192.168.103:'
 39 2018-08-09T04:08:43.186863 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') connection established to 23fb8f7a tcp://192.168.1.102:4567
 40 2018-08-09T04:08:43.186895 01:00 0 [Warning] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') address 'tcp://192.168.1.102:4567' points to own listening address, blacklisting
 41 2018-08-09T04:08:43.188042 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') connection established to 13eae368 tcp://192.168.1.101:4567
 42 2018-08-09T04:08:43.188190 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
 43 2018-08-09T04:08:43.686789 01:00 0 [Note] WSREP: declaring 13eae368 at tcp://192.168.1.101:4567 stable
 44 2018-08-09T04:08:43.687321 01:00 0 [Note] WSREP: Node 13eae368 state primary
 45 2018-08-09T04:08:43.690123 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 46 view (view_id(PRIM,13eae368,2)
 47 memb {
 48     13eae368,0
 49     23fb8f7a,0
 50     }
 51 joined {
 52     }
 53 left {
 54     }
 55 partitioned {
 56     }
 57 )
 58 2018-08-09T04:08:43.690159 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
 59 2018-08-09T04:08:43.690256 01:00 0 [Note] WSREP: discarding pending addr without UUID: tcp://192.168.0.103:4567
 60 2018-08-09T04:08:43.690263 01:00 0 [Note] WSREP: discarding pending addr proto entry 0x28b0b70
 61 2018-08-09T04:08:44.185955 01:00 0 [Note] WSREP: gcomm: connected
 62 2018-08-09T04:08:44.186036 01:00 0 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)
 63 2018-08-09T04:08:44.186098 01:00 0 [Note] WSREP: Waiting for SST/IST to complete.
 64 2018-08-09T04:08:44.186339 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 1, memb_num = 2
 65 2018-08-09T04:08:44.186355 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
 66 2018-08-09T04:08:44.186383 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 24481910-9b79-11e8-b078-6a52474ad103
 67 2018-08-09T04:08:44.186388 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 24481910-9b79-11e8-b078-6a52474ad103 from 0 (zlm2)
 68 2018-08-09T04:08:44.189234 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 24481910-9b79-11e8-b078-6a52474ad103 from 1 (zlm3)
 69 2018-08-09T04:08:44.189263 01:00 0 [Note] WSREP: Quorum results:
 70     version    = 4,
 71     component  = PRIMARY,
 72     conf_id    = 1,
 73     members    = 1/2 (primary/total),
 74     act_id     = 22,
 75     last_appl. = -1,
 76     protocols  = 0/8/3 (gcs/repl/appl),
 77     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 78 2018-08-09T04:08:44.189270 01:00 0 [Note] WSREP: Flow-control interval: [141, 141]
 79 2018-08-09T04:08:44.189273 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
 80 2018-08-09T04:08:44.189277 01:00 0 [Note] WSREP: Shifting OPEN -> PRIMARY (TO: 22)
 81 2018-08-09T04:08:44.189468 01:00 2 [Note] WSREP: State transfer required: 
 82     Group state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
 83     Local state: 00000000-0000-0000-0000-000000000000:-1
 84 2018-08-09T04:08:44.189478 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
 85 2018-08-09T04:08:44.189485 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 2: Primary, number of nodes: 2, my index: 1, protocol version 3
 86 2018-08-09T04:08:44.189489 01:00 2 [Note] WSREP: Setting wsrep_ready to true
 87 2018-08-09T04:08:44.189491 01:00 2 [Warning] WSREP: Gap in state sequence. Need state transfer.
 88 2018-08-09T04:08:44.189493 01:00 2 [Note] WSREP: Setting wsrep_ready to false
 89 2018-08-09T04:08:44.192795 01:00 0 [Note] WSREP: Initiating SST/IST transfer on JOINER side (wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.1.102' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '3893' --binlog '/data/mysql/mysql3308/logs/mysql-bin' )
 90     2018-08-09T02:08:44.755132Z WSREP_SST: [WARNING] Found a stale sst_in_progress file: /data/mysql/mysql3308/data//sst_in_progress
 91 2018-08-09T04:08:44.870937 01:00 2 [Note] WSREP: Prepared SST/IST request: xtrabackup-v2|192.168.1.102:4444/xtrabackup_sst//1
 92 2018-08-09T04:08:44.871047 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 2) (Increment: 1 -> 2)
 93 2018-08-09T04:08:44.871090 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 94 2018-08-09T04:08:44.871140 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
 95 2018-08-09T04:08:44.871282 01:00 0 [Note] WSREP: Service thread queue flushed.
 96 2018-08-09T04:08:44.871758 01:00 2 [Note] WSREP: Check if state gap can be serviced using IST
 97 2018-08-09T04:08:44.871782 01:00 2 [Note] WSREP: Local UUID: 00000000-0000-0000-0000-000000000000 != Group UUID: bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 98 2018-08-09T04:08:44.871834 01:00 2 [Note] WSREP: State gap can't be serviced using IST. Switching to SST
 99 2018-08-09T04:08:44.871842 01:00 2 [Note] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (bd5525ab-9a15-11e8-aa0f-4b830c783fc7): 1 (Operation not permitted)
100      at galera/src/replicator_str.cpp:prepare_for_IST():538. IST will be unavailable.
101 2018-08-09T04:08:44.872523 01:00 0 [Note] WSREP: Member 1.0 (zlm3) requested state transfer from '*any*'. Selected 0.0 (zlm2)(SYNCED) as donor.
102 2018-08-09T04:08:44.872545 01:00 0 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 22)
103 2018-08-09T04:08:44.872679 01:00 2 [Note] WSREP: Requesting state transfer: success, donor: 0
104 2018-08-09T04:08:44.872720 01:00 2 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
105     2018-08-09T02:08:45.589512Z WSREP_SST: [INFO] WARNING: Stale temporary SST directory: /data/mysql/mysql3308/data//.sst from previous state transfer. Removing
106     2018-08-09T02:08:45.608370Z WSREP_SST: [INFO] Proceeding with SST.........
107 removed ‘/data/mysql/mysql3308/logs/mysql-bin.000015’
108     2018-08-09T02:08:45.637863Z WSREP_SST: [INFO] ............Waiting for SST streaming to complete!
109 2018-08-09T04:08:46.189014 01:00 0 [Note] WSREP: (23fb8f7a, 'tcp://0.0.0.0:4567') turning message relay requesting off
110     2018-08-09T02:09:03.636108Z WSREP_SST: [INFO] Preparing the backup at /data/mysql/mysql3308/data//.sst
111 2018-08-09T04:09:03.649250 01:00 0 [Note] WSREP: 0.0 (zlm2): State transfer to 1.0 (zlm3) complete.
112 2018-08-09T04:09:03.659780 01:00 0 [Note] WSREP: Member 0.0 (zlm2) synced with group.
113     2018-08-09T02:09:21.887135Z WSREP_SST: [INFO] Moving the backup to /data/mysql/mysql3308/data/
114     2018-08-09T02:09:22.003073Z WSREP_SST: [INFO] Galera co-ords from recovery: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
115 2018-08-09T04:09:22.015642 01:00 0 [Note] WSREP: SST complete, seqno: 22
116 2018-08-09T04:09:22.020459 01:00 0 [Warning] InnoDB: Using innodb_locks_unsafe_for_binlog is DEPRECATED. This option may be removed in future releases. Please use READ COMMITTED transaction isolation level instead; Please refer to http://dev.mysql.com/doc/refman/5.7/en/set-transaction.html
117 2018-08-09T04:09:22.020620 01:00 0 [Note] InnoDB: PUNCH HOLE support available
118 2018-08-09T04:09:22.020665 01:00 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
119 2018-08-09T04:09:22.020674 01:00 0 [Note] InnoDB: Uses event mutexes
120 2018-08-09T04:09:22.020679 01:00 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
121 2018-08-09T04:09:22.020684 01:00 0 [Note] InnoDB: Compressed tables use zlib 1.2.7
122 2018-08-09T04:09:22.020688 01:00 0 [Note] InnoDB: Using Linux native AIO
123 2018-08-09T04:09:22.020708 01:00 0 [Note] InnoDB: Adjusting innodb_buffer_pool_instances from 4 to 1 since innodb_buffer_pool_size is less than 1024 MiB
124 2018-08-09T04:09:22.021332 01:00 0 [Note] InnoDB: Number of pools: 1
125 2018-08-09T04:09:22.021561 01:00 0 [Note] InnoDB: Using CPU crc32 instructions
126 2018-08-09T04:09:22.024636 01:00 0 [Note] InnoDB: Initializing buffer pool, total size = 100M, instances = 1, chunk size = 100M
127 2018-08-09T04:09:22.027579 01:00 0 [Note] InnoDB: Completed initialization of buffer pool
128 2018-08-09T04:09:22.031734 01:00 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
129 2018-08-09T04:09:22.056548 01:00 0 [Note] InnoDB: Crash recovery did not find the parallel doublewrite buffer at /data/mysql/mysql3308/data/xb_doublewrite
130 2018-08-09T04:09:22.058938 01:00 0 [Note] InnoDB: Highest supported file format is Barracuda.
131 2018-08-09T04:09:22.176951 01:00 0 [Note] InnoDB: Created parallel doublewrite buffer at /data/mysql/mysql3308/data/xb_doublewrite, size 3932160 bytes
132 2018-08-09T04:09:22.311846 01:00 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
133 2018-08-09T04:09:22.311867 01:00 0 [Note] InnoDB: Creating shared tablespace for temporary tables
134 2018-08-09T04:09:22.311914 01:00 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
135 2018-08-09T04:09:22.753228 01:00 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
136 2018-08-09T04:09:22.753891 01:00 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
137 2018-08-09T04:09:22.753902 01:00 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
138 2018-08-09T04:09:22.754607 01:00 0 [Note] InnoDB: Waiting for purge to start
139 2018-08-09T04:09:22.805815 01:00 0 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.7.22-rel22 started; log sequence number 2605608
140 2018-08-09T04:09:22.806243 01:00 0 [Note] Plugin 'FEDERATED' is disabled.
141 2018-08-09T04:09:22.808992 01:00 0 [Note] InnoDB: Loading buffer pool(s) from /data/mysql/mysql3308/data/ib_buffer_pool
142 2018-08-09T04:09:22.854750 01:00 0 [Note] InnoDB: Buffer pool(s) load completed at 180809  4:09:22
143 2018-08-09T04:09:22.865970 01:00 0 [Note] Recovering after a crash using /data/mysql/mysql3308/logs/mysql-bin
144 2018-08-09T04:09:22.866002 01:00 0 [Note] WSREP: Before binlog recovery (wsrep position bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22)
145 2018-08-09T04:09:22.866021 01:00 0 [Note] Starting crash recovery...
146 2018-08-09T04:09:22.866046 01:00 0 [Note] Crash recovery finished.
147 2018-08-09T04:09:22.866057 01:00 0 [Note] WSREP: After binlog recovery (wsrep position bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22)
148 2018-08-09T04:09:22.875798 01:00 0 [Note] Salting uuid generator variables, current_pid: 3893, server_start_time: 1533780523, bytes_sent: 0, 
149 2018-08-09T04:09:22.875871 01:00 0 [Note] Generated uuid: '3ba41aa7-9b79-11e8-ad75-080027de0e0e', server_start_time: 1095782085868368224, bytes_sent: 46954208
150 2018-08-09T04:09:22.875894 01:00 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 3ba41aa7-9b79-11e8-ad75-080027de0e0e.
151 2018-08-09T04:09:23.579815 01:00 0 [Note] Auto generated SSL certificates are placed in data directory.
152 2018-08-09T04:09:23.580319 01:00 0 [Warning] CA certificate ca.pem is self signed.
153 2018-08-09T04:09:23.708603 01:00 0 [Note] Auto generated RSA key files are placed in data directory.
154 2018-08-09T04:09:23.708726 01:00 0 [Note] Server hostname (bind-address): '*'; port: 3308
155 2018-08-09T04:09:23.708750 01:00 0 [Note] IPv6 is available.
156 2018-08-09T04:09:23.708759 01:00 0 [Note]   - '::' resolves to '::';
157 2018-08-09T04:09:23.708775 01:00 0 [Note] Server socket created on IP: '::'.
158 2018-08-09T04:09:23.715377 01:00 0 [Warning] 'user' entry 'root@localhost' ignored in --skip-name-resolve mode.
159 2018-08-09T04:09:23.715477 01:00 0 [Warning] 'user' entry 'mysql.session@localhost' ignored in --skip-name-resolve mode.
160 2018-08-09T04:09:23.715490 01:00 0 [Warning] 'user' entry 'mysql.sys@localhost' ignored in --skip-name-resolve mode.
161 2018-08-09T04:09:23.715499 01:00 0 [Warning] 'user' entry 'sst@localhost' ignored in --skip-name-resolve mode.
162 2018-08-09T04:09:23.715539 01:00 0 [Warning] 'db' entry 'performance_schema mysql.session@localhost' ignored in --skip-name-resolve mode.
163 2018-08-09T04:09:23.715548 01:00 0 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.
164 2018-08-09T04:09:23.715559 01:00 0 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.
165 2018-08-09T04:09:23.716731 01:00 0 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.
166 2018-08-09T04:09:23.716749 01:00 0 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.
167 2018-08-09T04:09:23.739950 01:00 0 [Note] Event Scheduler: Loaded 0 events
168 2018-08-09T04:09:23.740507 01:00 0 [Note] WSREP: Signalling provider to continue on SST completion.
169 2018-08-09T04:09:23.740531 01:00 0 [Note] WSREP: Initialized wsrep sidno 2
170 2018-08-09T04:09:23.740553 01:00 0 [Note] WSREP: SST received: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
171 2018-08-09T04:09:23.740631 01:00 0 [Note] mysqld: ready for connections.
172 Version: '5.7.22-22-29.26-log'  socket: '/tmp/mysql3308.sock'  port: 3308  Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
173 2018-08-09T04:09:23.741168 01:00 0 [Note] WSREP: 1.0 (zlm3): State transfer from 0.0 (zlm2) complete.
174 2018-08-09T04:09:23.741191 01:00 0 [Note] WSREP: SST leaving flow control
175 2018-08-09T04:09:23.741196 01:00 0 [Note] WSREP: Shifting JOINER -> JOINED (TO: 22)
176 2018-08-09T04:09:23.742029 01:00 0 [Note] WSREP: Member 1.0 (zlm3) synced with group.
177 2018-08-09T04:09:23.742059 01:00 0 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 22)
178 2018-08-09T04:09:23.742077 01:00 2 [Note] WSREP: Synchronized with group, ready for connections
179 2018-08-09T04:09:23.742082 01:00 2 [Note] WSREP: Setting wsrep_ready to true
180 2018-08-09T04:09:23.742087 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
 1 [root@zlm4 09:43:26 /data/backup]
 2 #innobackupex --apply-log /data/backup/2018-08-09_09-26-05/
 3 xtrabackup: recognized server arguments: --innodb_checksum_algorithm=crc32 --innodb_log_checksum_algorithm=strict_crc32 --innodb_data_file_path=ibdata1:100M:autoextend --innodb_log_files_in_group=3 --innodb_log_file_size=104857600 --innodb_fast_checksum=0 --innodb_page_size=16384 --innodb_log_block_size=512 --innodb_undo_directory=./ --innodb_undo_tablespaces=0 --server-id=1023308 --redo-log-version=1 --innodb_buffer_pool_filename=ib_buffer_pool 
 4 xtrabackup: recognized client arguments: --innodb_checksum_algorithm=crc32 --innodb_log_checksum_algorithm=strict_crc32 --innodb_data_file_path=ibdata1:100M:autoextend --innodb_log_files_in_group=3 --innodb_log_file_size=104857600 --innodb_fast_checksum=0 --innodb_page_size=16384 --innodb_log_block_size=512 --innodb_undo_directory=./ --innodb_undo_tablespaces=0 --server-id=1023308 --redo-log-version=1 --innodb_buffer_pool_filename=ib_buffer_pool 
 5 180809 09:45:56 innobackupex: Starting the apply-log operation
 6 
 7 ... //Omitted.
 8 
 9 InnoDB: Waiting for purge to start
10 InnoDB: 5.7.19 started; log sequence number 2627605
11 xtrabackup: starting shutdown with innodb_fast_shutdown = 1
12 InnoDB: page_cleaner: 1000ms intended loop took 17036ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
13 InnoDB: FTS optimize thread exiting.
14 InnoDB: Starting shutdown...
15 InnoDB: Shutdown completed; log sequence number 2627624
16 180809 09:46:17 completed OK!
17 
18 [root@zlm4 09:52:44 /data/mysql/mysql3308/data]
19 #ls -l
20 total 540792
21 -rw-r----- 1 mysql mysql        56 Aug  9 08:00 auto.cnf
22 -rw------- 1 mysql mysql      1680 Aug  9 08:00 ca-key.pem
23 -rw-r--r-- 1 mysql mysql      1120 Aug  9 08:00 ca.pem
24 -rw-r--r-- 1 mysql mysql      1120 Aug  9 08:00 client-cert.pem
25 -rw------- 1 mysql mysql      1680 Aug  9 08:00 client-key.pem
26 -rw-r----- 1 mysql mysql     38775 Aug  9 09:02 error.log
27 -rw-r----- 1 mysql mysql 134219048 Aug  9 09:02 galera.cache
28 -rw-r----- 1 mysql mysql       113 Aug  9 09:02 grastate.dat
29 -rw-r----- 1 mysql mysql       280 Aug  9 09:02 ib_buffer_pool
30 -rw-r----- 1 mysql mysql 104857600 Aug  9 09:02 ibdata1
31 -rw-r----- 1 mysql mysql 104857600 Aug  9 09:02 ib_logfile0
32 -rw-r----- 1 mysql mysql 104857600 Aug  9 08:00 ib_logfile1
33 -rw-r----- 1 mysql mysql 104857600 Aug  9 08:00 ib_logfile2
34 drwxr-x--- 2 mysql mysql      4096 Aug  9 08:00 mysql
35 drwxr-x--- 2 mysql mysql      8192 Aug  9 08:00 performance_schema
36 -rw------- 1 mysql mysql      1676 Aug  9 08:00 private_key.pem
37 -rw-r--r-- 1 mysql mysql       452 Aug  9 08:00 public_key.pem
38 -rw-r--r-- 1 mysql mysql      1120 Aug  9 08:00 server-cert.pem
39 -rw------- 1 mysql mysql      1676 Aug  9 08:00 server-key.pem
40 -rw-r----- 1 mysql mysql       227 Aug  9 08:00 slow.log
41 drwxr-x--- 2 mysql mysql      8192 Aug  9 08:00 sys
42 
43 [root@zlm4 09:57:51 /data/mysql/mysql3308/data]
44 #rm -rf *
45 
46 [root@zlm4 09:59:35 /data/mysql/mysql3308/data]
47 #innobackupex --defaults-file=/data/mysql/mysql3308/my3308.cnf --copy-back /data/backup/2018-08-09_09-26-05/
48 xtrabackup: recognized server arguments: --datadir=/data/mysql/mysql3308/data --server-id=1033308 --open_files_limit=65536 --log_bin=/data/mysql/mysql3308/logs/mysql-bin --innodb_data_file_path=ibdata1:100M:autoextend --innodb_buffer_pool_filename=ib_buffer_pool --innodb_log_files_in_group=3 --innodb_log_file_size=100M --innodb_file_per_table=1 --innodb_open_files=65535 --innodb_page_size=16k --innodb_read_io_threads=4 --innodb_write_io_threads=4 --innodb_io_capacity=200 --innodb_doublewrite=1 --innodb_log_buffer_size=128M --innodb_flush_log_at_trx_commit=1 --innodb_buffer_pool_size=100M --innodb_flush_method=O_DIRECT 
49 xtrabackup: recognized client arguments: --datadir=/data/mysql/mysql3308/data --server-id=1033308 --open_files_limit=65536 --log_bin=/data/mysql/mysql3308/logs/mysql-bin --innodb_data_file_path=ibdata1:100M:autoextend --innodb_buffer_pool_filename=ib_buffer_pool --innodb_log_files_in_group=3 --innodb_log_file_size=100M --innodb_file_per_table=1 --innodb_open_files=65535 --innodb_page_size=16k --innodb_read_io_threads=4 --innodb_write_io_threads=4 --innodb_io_capacity=200 --innodb_doublewrite=1 --innodb_log_buffer_size=128M --innodb_flush_log_at_trx_commit=1 --innodb_buffer_pool_size=100M --innodb_flush_method=O_DIRECT 
50 180809 10:00:09 innobackupex: Starting the copy-back operation
51 
52 [root@zlm4 10:01:16 /data/mysql/mysql3308/data]
53 #ls -l
54 total 421936
55 -rw-r----- 1 root root       293 Aug  9 10:00 ib_buffer_pool
56 -rw-r----- 1 root root 104857600 Aug  9 10:00 ibdata1
57 -rw-r----- 1 root root 104857600 Aug  9 10:00 ib_logfile0
58 -rw-r----- 1 root root 104857600 Aug  9 10:00 ib_logfile1
59 -rw-r----- 1 root root 104857600 Aug  9 10:00 ib_logfile2
60 -rw-r----- 1 root root  12582912 Aug  9 10:00 ibtmp1
61 drwxr-x--- 2 root root      4096 Aug  9 10:00 mysql
62 drwxr-x--- 2 root root      8192 Aug  9 10:00 performance_schema
63 drwxr-x--- 2 root root      8192 Aug  9 10:00 sys
64 -rw-r----- 1 root root        22 Aug  9 10:00 xtrabackup_binlog_pos_innodb
65 -rw-r----- 1 root root        39 Aug  9 10:00 xtrabackup_galera_info
66 -rw-r----- 1 root root       650 Aug  9 10:00 xtrabackup_info
67 -rw-r----- 1 root root         1 Aug  9 10:00 xtrabackup_master_key_id
68 drwxr-x--- 2 root root        45 Aug  9 10:00 zlm
69 
70 [root@zlm4 10:02:23 /data/mysql/mysql3308/data]
71 #chown -R mysql.mysql *
 1 [root@zlm1 16:56:54 /data/backup]
 2 #mysqladmin shutdown
 3 
 4 [root@zlm1 16:57:05 /data/backup]
 5 #ps aux|grep mysqld
 6 mysql     3804  0.0 20.7 1072396 210620 pts/0  Sl   15:52   0:02 mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf
 7 root      4512  0.0  0.0 112640   960 pts/2    R    16:57   0:00 grep --color=auto mysqld
 8 
 9 [root@zlm1 16:57:10 /data/backup]
10 #ps aux|grep mysqld
11 mysql     3804  0.0 20.1 1038828 204780 pts/0  Sl   15:52   0:02 mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf
12 root      4518  0.0  0.0 112640   956 pts/2    R    16:57   0:00 grep --color=auto mysqld
13 
14 [root@zlm1 16:57:15 /data/backup]
15 #mysqladmin shutdown
16 mysqladmin: connect to server at '192.168.56.100' failed
17 error: 'Can't connect to MySQL server on '192.168.56.100' (111)'
18 Check that mysqld is running on 192.168.56.100 and that the port is 3306.
19 You can check this by doing 'telnet 192.168.56.100 3306'
20 
21 [root@zlm1 16:57:23 /data/backup]
22 #ps aux|grep mysqld
23 root      4529  0.0  0.0 112640   960 pts/2    R    16:57   0:00 grep --color=auto mysqld

 

 

 

 Evidence on node zlm4(using rsync mothed of sst).

Modify the my3308.cnf to omit the PXC relevant parameter and startup mysqld.

Copy backup set to zlm2.

 

 1 [root@zlm4 10:05:33 /data/mysql/mysql3308]
 2 #cat my3308.cnf |grep wsrep
 3 #loose-wsrep_cluster_name=pxc_wubx 
 4 #loose-wsrep_cluster_address=gcomm://192.168.1.101,192.168.1.102,192.168.1.103
 5 #loose-wsrep_node_address=192.168.1.103
 6 #loose-wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so
 7 #loose-wsrep_sst_method=xtrabackup-v2
 8 #loose-wsrep_sst_method=rsync
 9 #loose-wsrep_sst_auth=sst:zlmzlm
10 #loose-wsrep_debug=on
11 #loose-wsrep_provider_options="debug=on"
12 
13 [root@zlm4 10:08:04 /data/mysql/mysql3308]
14 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf &
15 [1] 6094
16 
17 [root@zlm4 10:08:07 /data/mysql/mysql3308]
18 #!ps
19 ps aux|grep mysqld
20 mysql     6094 24.3 17.9 1238476 182592 pts/0  Sl   10:08   0:00 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
21 root      6128  0.0  0.0 112640   956 pts/0    R    10:08   0:00 grep --color=auto mysqld
 1 [root@zlm1 16:32:53 ~]
 2 #cd /data/backup/
 3 
 4 [root@zlm1 16:37:19 /data/backup]
 5 #ls -l
 6 total 4
 7 drwxr-x--- 7 root root 4096 Jul 29 16:32 2018-07-29_16-32-33
 8 
 9 [root@zlm1 16:37:24 /data/backup]
10 #scp -r 2018-07-29_16-32-33 zlm2:/data/backup
11 xtrabackup_logfile                                                                                                 100% 2560     2.5KB/s   00:00    
12 ibdata1                                                                                                            100%  100MB  50.0MB/s   00:02
13 ... //Omitted.
  1 //Change the parameter "wsrep_sst_method" into "rysnc" in my3308.cnf file.
  2 #loose-wsrep_sst_method=xtrabackup-v2
  3 loose-wsrep_sst_method=rsync
  4 
  5 [root@zlm4 07:51:38 /data/mysql/mysql3308/data]
  6 #tail -f error.log 
  7 2018-08-09T07:52:21.038606 01:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
  8 2018-08-09T07:52:21.041387 01:00 0 [Warning] Insecure configuration for --secure-file-priv: Location is accessible to all OS users. Consider choosing a different directory.
  9 2018-08-09T07:52:21.041490 01:00 0 [Note] mysqld (mysqld 5.7.22-22-29.26-log) starting as process 5205 ...
 10 2018-08-09T07:52:21.044740 01:00 0 [Note] WSREP: Setting wsrep_ready to false
 11 2018-08-09T07:52:21.044761 01:00 0 [Note] WSREP: No pre-stored wsrep-start position found. Skipping position initialization.
 12 2018-08-09T07:52:21.044767 01:00 0 [Note] WSREP: wsrep_load(): loading provider library '/usr/local/mysql/lib/libgalera_smm.so'
 13 2018-08-09T07:52:21.050035 01:00 0 [Note] WSREP: wsrep_load(): Galera 3.26(r) by Codership Oy <info@codership.com> loaded successfully.
 14 2018-08-09T07:52:21.050186 01:00 0 [Note] WSREP: CRC-32C: using hardware acceleration.
 15 2018-08-09T07:52:21.050565 01:00 0 [Warning] WSREP: Could not open state file for reading: '/data/mysql/mysql3308/data//grastate.dat'
 16 2018-08-09T07:52:21.050585 01:00 0 [Warning] WSREP: No persistent state found. Bootstraping with default state
 17 2018-08-09T07:52:21.050637 01:00 0 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1, safe_to_bootstrap: 1
 18 2018-08-09T07:52:21.055209 01:00 0 [Note] WSREP: Passing config to GCS: base_dir = /data/mysql/mysql3308/data/; base_host = 192.168.1.103; base_port = 4567; cert.log_conflicts = no; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 10; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 4; evs.view_forget_timeout = PT24H; gcache.dir = /data/mysql/mysql3308/data/; gcache.freeze_purge_at_seqno = -1; gcache.keep_pages_count = 0; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /data/mysql/mysql3308/data//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gcs.fc_debug = 0; gcs.fc_factor = 1; gcs.fc_limit = 100; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout = PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.recovery = 1; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = PT30S; pc.weight = 1; protonet.backend = asio; protonet.version = 0; repl.causal_read_timeout = PT30S; repl.commit_order = 3; repl.key_format = FLAT8; repl.max_ws_size = 2147483647; repl.proto_max = 8; socket.checksum = 2; socket.recv_buf_size = 212992; 
 19 2018-08-09T07:52:21.069257 01:00 0 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> 00000000-0000-0000-0000-000000000000:-1
 20 2018-08-09T07:52:21.071550 01:00 0 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1
 21 2018-08-09T07:52:21.071584 01:00 0 [Note] WSREP: Preparing to initiate SST/IST
 22 2018-08-09T07:52:21.071589 01:00 0 [Note] WSREP: Starting replication
 23 2018-08-09T07:52:21.071606 01:00 0 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1
 24 2018-08-09T07:52:21.071812 01:00 0 [Note] WSREP: Using CRC-32C for message checksums.
 25 2018-08-09T07:52:21.071888 01:00 0 [Note] WSREP: gcomm thread scheduling priority set to other:0 
 26 2018-08-09T07:52:21.072021 01:00 0 [Warning] WSREP: Fail to access the file (/data/mysql/mysql3308/data//gvwstate.dat) error (No such file or directory). It is possible if node is booting for first time or re-booting after a graceful shutdown
 27 2018-08-09T07:52:21.072030 01:00 0 [Note] WSREP: Restoring primary-component from disk failed. Either node is booting for first time or re-booting after a graceful shutdown
 28 2018-08-09T07:52:21.072800 01:00 0 [Note] WSREP: GMCast version 0
 29 2018-08-09T07:52:21.072942 01:00 0 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567
 30 2018-08-09T07:52:21.072942 01:00 0 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') multicast: , ttl: 1
 31 2018-08-09T07:52:21.073357 01:00 0 [Note] WSREP: EVS version 0
 32 2018-08-09T07:52:21.073926 01:00 0 [Note] WSREP: gcomm: connecting to group 'pxc_wubx', peer '192.168.1.101:,192.168.1.102:,192.168.1.103:'
 33 2018-08-09T07:52:21.076189 01:00 0 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') connection established to 61aad7a7 tcp://192.168.1.103:4567
 34 2018-08-09T07:52:21.076220 01:00 0 [Warning] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') address 'tcp://192.168.1.103:4567' points to own listening address, blacklisting
 35 2018-08-09T07:52:21.078146 01:00 0 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') connection established to 13eae368 tcp://192.168.1.101:4567
 36 2018-08-09T07:52:21.078312 01:00 0 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
 37 2018-08-09T07:52:21.080311 01:00 0 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') connection established to 23fb8f7a tcp://192.168.1.102:4567
 38 2018-08-09T07:52:21.583579 01:00 0 [Note] WSREP: declaring 13eae368 at tcp://192.168.1.101:4567 stable
 39 2018-08-09T07:52:21.583614 01:00 0 [Note] WSREP: declaring 23fb8f7a at tcp://192.168.1.102:4567 stable
 40 2018-08-09T07:52:21.584818 01:00 0 [Note] WSREP: Node 13eae368 state primary
 41 2018-08-09T07:52:21.589478 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 42 view (view_id(PRIM,13eae368,9)
 43 memb {
 44     13eae368,0
 45     23fb8f7a,0
 46     61aad7a7,0
 47     }
 48 joined {
 49     }
 50 left {
 51     }
 52 partitioned {
 53     }
 54 )
 55 2018-08-09T07:52:21.589519 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
 56 2018-08-09T07:52:22.075191 01:00 0 [Note] WSREP: gcomm: connected
 57 2018-08-09T07:52:22.075272 01:00 0 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)
 58 2018-08-09T07:52:22.075348 01:00 0 [Note] WSREP: Waiting for SST/IST to complete.
 59 2018-08-09T07:52:22.075642 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 2, memb_num = 3
 60 2018-08-09T07:52:22.075658 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
 61 2018-08-09T07:52:22.075689 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 61f621e1-9b98-11e8-a772-bfae300f8d05
 62 2018-08-09T07:52:22.075697 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 61f621e1-9b98-11e8-a772-bfae300f8d05 from 0 (zlm2)
 63 2018-08-09T07:52:22.075704 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 61f621e1-9b98-11e8-a772-bfae300f8d05 from 1 (zlm3)
 64 2018-08-09T07:52:22.077812 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 61f621e1-9b98-11e8-a772-bfae300f8d05 from 2 (zlm4)
 65 2018-08-09T07:52:22.077845 01:00 0 [Note] WSREP: Quorum results:
 66     version    = 4,
 67     component  = PRIMARY,
 68     conf_id    = 8,
 69     members    = 2/3 (primary/total),
 70     act_id     = 22,
 71     last_appl. = -1,
 72     protocols  = 0/8/3 (gcs/repl/appl),
 73     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 74 2018-08-09T07:52:22.077853 01:00 0 [Note] WSREP: Flow-control interval: [173, 173]
 75 2018-08-09T07:52:22.077858 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
 76 2018-08-09T07:52:22.077864 01:00 0 [Note] WSREP: Shifting OPEN -> PRIMARY (TO: 22)
 77 2018-08-09T07:52:22.077926 01:00 2 [Note] WSREP: State transfer required: 
 78     Group state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
 79     Local state: 00000000-0000-0000-0000-000000000000:-1
 80 2018-08-09T07:52:22.077935 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
 81 2018-08-09T07:52:22.077943 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 9: Primary, number of nodes: 3, my index: 2, protocol version 3
 82 2018-08-09T07:52:22.077948 01:00 2 [Note] WSREP: Setting wsrep_ready to true
 83 2018-08-09T07:52:22.077951 01:00 2 [Warning] WSREP: Gap in state sequence. Need state transfer.
 84 2018-08-09T07:52:22.077954 01:00 2 [Note] WSREP: Setting wsrep_ready to false
 85 2018-08-09T07:52:22.078033 01:00 0 [Note] WSREP: Initiating SST/IST transfer on JOINER side (wsrep_sst_rsync --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '5205' --binlog '/data/mysql/mysql3308/logs/mysql-bin' )
 86 which: no lsof in (/usr/sbin:/sbin:/opt/mysql/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102/bin:/root/perl5/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/mysql/bin:/usr/local/zabbix/bin:/usr/local/zabbix/sbin)
 87 2018-08-09T07:52:22.254544 01:00 0 [ERROR] WSREP: Failed to read 'ready <addr>' from: wsrep_sst_rsync --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '5205' --binlog '/data/mysql/mysql3308/logs/mysql-bin' 
 88     Read: ''lsof' not found in PATH' //Here's the important message of error but has not "ERROR" keyword in the same line.So I've almost missed it.
 89 2018-08-09T07:52:22.254571 01:00 0 [ERROR] WSREP: Process completed with error: wsrep_sst_rsync --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '5205' --binlog '/data/mysql/mysql3308/logs/mysql-bin' : 2 (No such file or directory)
 90 2018-08-09T07:52:22.254631 01:00 2 [ERROR] WSREP: Failed to prepare for 'rsync' SST. Unrecoverable.
 91 2018-08-09T07:52:22.254639 01:00 2 [ERROR] Aborting
 92 
 93 2018-08-09T07:52:22.254643 01:00 2 [Note] Giving 2 client threads a chance to die gracefully
 94 2018-08-09T07:52:24.254907 01:00 2 [Note] WSREP: Closing send monitor...
 95 2018-08-09T07:52:24.254992 01:00 2 [Note] WSREP: Closed send monitor.
 96 2018-08-09T07:52:24.255028 01:00 2 [Note] WSREP: gcomm: terminating thread
 97 2018-08-09T07:52:24.255042 01:00 2 [Note] WSREP: gcomm: joining thread
 98 2018-08-09T07:52:24.255061 01:00 1 [Note] WSREP: rollbacker thread exiting
 99 2018-08-09T07:52:24.255377 01:00 2 [Note] WSREP: gcomm: closing backend
100 2018-08-09T07:52:24.260692 01:00 2 [Note] WSREP: Current view of cluster as seen by this node
101 view (view_id(NON_PRIM,13eae368,9)
102 memb {
103     61aad7a7,0
104     }
105 joined {
106     }
107 left {
108     }
109 partitioned {
110     13eae368,0
111     23fb8f7a,0
112     }
113 )
114 2018-08-09T07:52:24.260770 01:00 2 [Note] WSREP: (61aad7a7, 'tcp://0.0.0.0:4567') turning message relay requesting off
115 2018-08-09T07:52:24.260814 01:00 2 [Note] WSREP: Current view of cluster as seen by this node
116 view ((empty))
117 2018-08-09T07:52:24.261439 01:00 2 [Note] WSREP: gcomm: closed
118 2018-08-09T07:52:24.261690 01:00 0 [Note] WSREP: New COMPONENT: primary = no, bootstrap = no, my_idx = 0, memb_num = 1
119 2018-08-09T07:52:24.261741 01:00 0 [Note] WSREP: Flow-control interval: [100, 100]
120 2018-08-09T07:52:24.261746 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
121 2018-08-09T07:52:24.261753 01:00 0 [Note] WSREP: Received NON-PRIMARY.
122 2018-08-09T07:52:24.261758 01:00 0 [Note] WSREP: Shifting PRIMARY -> OPEN (TO: 22)
123 2018-08-09T07:52:24.261767 01:00 0 [Note] WSREP: Received self-leave message.
124 2018-08-09T07:52:24.261774 01:00 0 [Note] WSREP: Flow-control interval: [0, 0]
125 2018-08-09T07:52:24.261777 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
126 2018-08-09T07:52:24.261780 01:00 0 [Note] WSREP: Received SELF-LEAVE. Closing connection.
127 2018-08-09T07:52:24.261784 01:00 0 [Note] WSREP: Shifting OPEN -> CLOSED (TO: 22)
128 2018-08-09T07:52:24.261794 01:00 0 [Note] WSREP: RECV thread exiting 0: Success
129 2018-08-09T07:52:24.262101 01:00 2 [Note] WSREP: recv_thread() joined.
130 2018-08-09T07:52:24.262113 01:00 2 [Note] WSREP: Closing replication queue.
131 2018-08-09T07:52:24.262117 01:00 2 [Note] WSREP: Closing slave action queue.
132 2018-08-09T07:52:24.262162 01:00 0 [Note] WSREP: Waiting for active wsrep applier to exit
133 2018-08-09T07:52:24.262170 01:00 0 [Note] WSREP: Service disconnected.
134 2018-08-09T07:52:24.262173 01:00 0 [Note] WSREP: Waiting to close threads......
135 2018-08-09T07:52:29.262290 01:00 0 [Note] WSREP: Some threads may fail to exit.
136 2018-08-09T07:52:29.262337 01:00 0 [Note] Binlog end
137 2018-08-09T07:52:29.262596 01:00 0 [Note] mysqld: Shutdown complete
138 
139 //Install lsof tool.
140 [root@zlm4 07:58:19 /data/mysql/mysql3308]
141 #yum -y install lsof
142 ... //Omitted.
143 
144 Installed:
145   lsof.x86_64 0:4.87-5.el7                                                                                                                           
146 
147 Complete!
148 
149 //Start the node again.
150 [root@zlm4 07:59:47 /data/mysql/mysql3308]
151 #mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf &
152 [1] 5367
153 
154 [root@zlm4 08:00:02 /data/mysql/mysql3308]
155 #jobs
156 [1]   Running                 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf &
157 
158 //Check the error log again.
159 [root@zlm4 08:59:38 /data/mysql/mysql3308/data]
160 #tail -f error.log 
161 2018-08-09T08:00:02.899495 01:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
162 2018-08-09T08:00:02.900253 01:00 0 [Warning] Insecure configuration for --secure-file-priv: Location is accessible to all OS users. Consider choosing a different directory.
163 2018-08-09T08:00:02.900326 01:00 0 [Note] mysqld (mysqld 5.7.22-22-29.26-log) starting as process 5367 ...
164 2018-08-09T08:00:02.902758 01:00 0 [Note] WSREP: Setting wsrep_ready to false
165 2018-08-09T08:00:02.902772 01:00 0 [Note] WSREP: No pre-stored wsrep-start position found. Skipping position initialization.
166 2018-08-09T08:00:02.902776 01:00 0 [Note] WSREP: wsrep_load(): loading provider library '/usr/local/mysql/lib/libgalera_smm.so'
167 2018-08-09T08:00:02.906503 01:00 0 [Note] WSREP: wsrep_load(): Galera 3.26(r) by Codership Oy <info@codership.com> loaded successfully.
168 2018-08-09T08:00:02.906567 01:00 0 [Note] WSREP: CRC-32C: using hardware acceleration.
169 2018-08-09T08:00:02.906904 01:00 0 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1, safe_to_bootstrap: 1
170 2018-08-09T08:00:02.911237 01:00 0 [Note] WSREP: Passing config to GCS: base_dir = /data/mysql/mysql3308/data/; base_host = 192.168.1.103; base_port = 4567; cert.log_conflicts = no; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 10; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 4; evs.view_forget_timeout = PT24H; gcache.dir = /data/mysql/mysql3308/data/; gcache.freeze_purge_at_seqno = -1; gcache.keep_pages_count = 0; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /data/mysql/mysql3308/data//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gcs.fc_debug = 0; gcs.fc_factor = 1; gcs.fc_limit = 100; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout = PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.recovery = 1; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = PT30S; pc.weight = 1; protonet.backend = asio; protonet.version = 0; repl.causal_read_timeout = PT30S; repl.commit_order = 3; repl.key_format = FLAT8; repl.max_ws_size = 2147483647; repl.proto_max = 8; socket.checksum = 2; socket.recv_buf_size = 212992; 
171 2018-08-09T08:00:02.921480 01:00 0 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> 00000000-0000-0000-0000-000000000000:-1
172 2018-08-09T08:00:02.923600 01:00 0 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1
173 2018-08-09T08:00:02.923636 01:00 0 [Note] WSREP: Preparing to initiate SST/IST
174 2018-08-09T08:00:02.923639 01:00 0 [Note] WSREP: Starting replication
175 2018-08-09T08:00:02.923652 01:00 0 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1
176 2018-08-09T08:00:02.923845 01:00 0 [Note] WSREP: Using CRC-32C for message checksums.
177 2018-08-09T08:00:02.923912 01:00 0 [Note] WSREP: gcomm thread scheduling priority set to other:0 
178 2018-08-09T08:00:02.923991 01:00 0 [Warning] WSREP: Fail to access the file (/data/mysql/mysql3308/data//gvwstate.dat) error (No such file or directory). It is possible if node is booting for first time or re-booting after a graceful shutdown
179 2018-08-09T08:00:02.923996 01:00 0 [Note] WSREP: Restoring primary-component from disk failed. Either node is booting for first time or re-booting after a graceful shutdown
180 2018-08-09T08:00:02.924673 01:00 0 [Note] WSREP: GMCast version 0
181 2018-08-09T08:00:02.924779 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567
182 2018-08-09T08:00:02.924779 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') multicast: , ttl: 1
183 2018-08-09T08:00:02.925300 01:00 0 [Note] WSREP: EVS version 0
184 2018-08-09T08:00:02.925433 01:00 0 [Note] WSREP: gcomm: connecting to group 'pxc_wubx', peer '192.168.1.101:,192.168.1.102:,192.168.1.103:'
185 2018-08-09T08:00:02.928124 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') connection established to 74f3db69 tcp://192.168.1.103:4567
186 2018-08-09T08:00:02.928158 01:00 0 [Warning] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') address 'tcp://192.168.1.103:4567' points to own listening address, blacklisting
187 2018-08-09T08:00:02.928505 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') connection established to 13eae368 tcp://192.168.1.101:4567
188 2018-08-09T08:00:02.929670 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
189 2018-08-09T08:00:02.929755 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') connection established to 23fb8f7a tcp://192.168.1.102:4567
190 2018-08-09T08:00:03.429892 01:00 0 [Note] WSREP: declaring 13eae368 at tcp://192.168.1.101:4567 stable
191 2018-08-09T08:00:03.429916 01:00 0 [Note] WSREP: declaring 23fb8f7a at tcp://192.168.1.102:4567 stable
192 2018-08-09T08:00:03.431850 01:00 0 [Note] WSREP: Node 13eae368 state primary
193 2018-08-09T08:00:03.434752 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
194 view (view_id(PRIM,13eae368,11)
195 memb {
196     13eae368,0
197     23fb8f7a,0
198     74f3db69,0
199     }
200 joined {
201     }
202 left {
203     }
204 partitioned {
205     }
206 )
207 2018-08-09T08:00:03.434779 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
208 2018-08-09T08:00:03.927902 01:00 0 [Note] WSREP: gcomm: connected
209 2018-08-09T08:00:03.927980 01:00 0 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)
210 2018-08-09T08:00:03.928042 01:00 0 [Note] WSREP: Waiting for SST/IST to complete.
211 2018-08-09T08:00:03.928251 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 2, memb_num = 3
212 2018-08-09T08:00:03.928261 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
213 2018-08-09T08:00:03.928285 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: 753e350b-9b99-11e8-be59-b7e1945f65e8
214 2018-08-09T08:00:03.928290 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 753e350b-9b99-11e8-be59-b7e1945f65e8 from 0 (zlm2)
215 2018-08-09T08:00:03.928294 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 753e350b-9b99-11e8-be59-b7e1945f65e8 from 1 (zlm3)
216 2018-08-09T08:00:03.929335 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: 753e350b-9b99-11e8-be59-b7e1945f65e8 from 2 (zlm4)
217 2018-08-09T08:00:03.929361 01:00 0 [Note] WSREP: Quorum results:
218     version    = 4,
219     component  = PRIMARY,
220     conf_id    = 10,
221     members    = 2/3 (primary/total),
222     act_id     = 22,
223     last_appl. = -1,
224     protocols  = 0/8/3 (gcs/repl/appl),
225     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
226 2018-08-09T08:00:03.929366 01:00 0 [Note] WSREP: Flow-control interval: [173, 173]
227 2018-08-09T08:00:03.929369 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
228 2018-08-09T08:00:03.929372 01:00 0 [Note] WSREP: Shifting OPEN -> PRIMARY (TO: 22)
229 2018-08-09T08:00:03.929413 01:00 2 [Note] WSREP: State transfer required: 
230     Group state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
231     Local state: 00000000-0000-0000-0000-000000000000:-1
232 2018-08-09T08:00:03.929419 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
233 2018-08-09T08:00:03.929425 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22, view# 11: Primary, number of nodes: 3, my index: 2, protocol version 3
234 2018-08-09T08:00:03.929428 01:00 2 [Note] WSREP: Setting wsrep_ready to true
235 2018-08-09T08:00:03.929430 01:00 2 [Warning] WSREP: Gap in state sequence. Need state transfer.
236 2018-08-09T08:00:03.929432 01:00 2 [Note] WSREP: Setting wsrep_ready to false
237 2018-08-09T08:00:03.929496 01:00 0 [Note] WSREP: Initiating SST/IST transfer on JOINER side (wsrep_sst_rsync --role 'joiner' --address '192.168.1.103' --datadir '/data/mysql/mysql3308/data/' --defaults-file '/data/mysql/mysql3308/my3308.cnf' --defaults-group-suffix '' --parent '5367' --binlog '/data/mysql/mysql3308/logs/mysql-bin' )
238     2018-08-09T06:00:04.047845Z WSREP_SST: [INFO] Waiting for data-dir through rsync................ //Begin to transfer data using rsync mode.
239 2018-08-09T08:00:04.319479 01:00 2 [Note] WSREP: Prepared SST/IST request: rsync|192.168.1.103:4444/rsync_sst
240 2018-08-09T08:00:04.319504 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 3) (Increment: 1 -> 3)
241 2018-08-09T08:00:04.319510 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
242 2018-08-09T08:00:04.319527 01:00 2 [Note] WSREP: Assign initial position for certification: 22, protocol version: 3
243 2018-08-09T08:00:04.319546 01:00 0 [Note] WSREP: Service thread queue flushed.
244 2018-08-09T08:00:04.319558 01:00 2 [Note] WSREP: Check if state gap can be serviced using IST
245 2018-08-09T08:00:04.319566 01:00 2 [Note] WSREP: Local UUID: 00000000-0000-0000-0000-000000000000 != Group UUID: bd5525ab-9a15-11e8-aa0f-4b830c783fc7
246 2018-08-09T08:00:04.319598 01:00 2 [Note] WSREP: State gap can't be serviced using IST. Switching to SST
247 2018-08-09T08:00:04.319602 01:00 2 [Note] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (bd5525ab-9a15-11e8-aa0f-4b830c783fc7): 1 (Operation not permitted)
248      at galera/src/replicator_str.cpp:prepare_for_IST():538. IST will be unavailable.
249 2018-08-09T08:00:04.321186 01:00 0 [Note] WSREP: Member 2.0 (zlm4) requested state transfer from '*any*'. Selected 0.0 (zlm2)(SYNCED) as donor.
250 2018-08-09T08:00:04.321208 01:00 0 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 22)
251 2018-08-09T08:00:04.321275 01:00 2 [Note] WSREP: Requesting state transfer: success, donor: 0
252 2018-08-09T08:00:04.321291 01:00 2 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 -> bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
253 2018-08-09T08:00:05.939711 01:00 0 [Note] WSREP: (74f3db69, 'tcp://0.0.0.0:4567') turning message relay requesting off
254 2018-08-09T08:00:26.343649 01:00 0 [Note] WSREP: 0.0 (zlm2): State transfer to 2.0 (zlm4) complete.
255 2018-08-09T08:00:26.344408 01:00 0 [Note] WSREP: Member 0.0 (zlm2) synced with group.
256     2018-08-09T06:00:26.399740Z WSREP_SST: [INFO] ..............rsync completed //Finished rsync transfer.
257 2018-08-09T08:00:26.929160 01:00 0 [Note] WSREP: SST complete, seqno: 22
258 2018-08-09T08:00:27.003561 01:00 0 [Warning] InnoDB: Using innodb_locks_unsafe_for_binlog is DEPRECATED. This option may be removed in future releases. Please use READ COMMITTED transaction isolation level instead; Please refer to http://dev.mysql.com/doc/refman/5.7/en/set-transaction.html
259 2018-08-09T08:00:27.003682 01:00 0 [Note] InnoDB: PUNCH HOLE support available
260 2018-08-09T08:00:27.003696 01:00 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
261 2018-08-09T08:00:27.003701 01:00 0 [Note] InnoDB: Uses event mutexes
262 2018-08-09T08:00:27.003705 01:00 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
263 2018-08-09T08:00:27.003710 01:00 0 [Note] InnoDB: Compressed tables use zlib 1.2.7
264 2018-08-09T08:00:27.003715 01:00 0 [Note] InnoDB: Using Linux native AIO
265 2018-08-09T08:00:27.003734 01:00 0 [Note] InnoDB: Adjusting innodb_buffer_pool_instances from 4 to 1 since innodb_buffer_pool_size is less than 1024 MiB
266 2018-08-09T08:00:27.004212 01:00 0 [Note] InnoDB: Number of pools: 1
267 2018-08-09T08:00:27.004325 01:00 0 [Note] InnoDB: Using CPU crc32 instructions
268 2018-08-09T08:00:27.010477 01:00 0 [Note] InnoDB: Initializing buffer pool, total size = 100M, instances = 1, chunk size = 100M
269 2018-08-09T08:00:27.019767 01:00 0 [Note] InnoDB: Completed initialization of buffer pool
270 2018-08-09T08:00:27.023312 01:00 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
271 2018-08-09T08:00:27.066815 01:00 0 [Note] InnoDB: Crash recovery did not find the parallel doublewrite buffer at /data/mysql/mysql3308/data/xb_doublewrite
272 2018-08-09T08:00:27.070460 01:00 0 [Note] InnoDB: Highest supported file format is Barracuda.
273 2018-08-09T08:00:27.071136 01:00 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 2605210
274 2018-08-09T08:00:27.071168 01:00 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 2605219
275 2018-08-09T08:00:27.071185 01:00 0 [Note] InnoDB: Database was not shutdown normally!
276 2018-08-09T08:00:27.071190 01:00 0 [Note] InnoDB: Starting crash recovery.
277 2018-08-09T08:00:27.306683 01:00 0 [Note] InnoDB: Created parallel doublewrite buffer at /data/mysql/mysql3308/data/xb_doublewrite, size 3932160 bytes
278 2018-08-09T08:00:27.558968 01:00 0 [Note] InnoDB: Last MySQL binlog file position 0 194, file name mysql-bin.000022
279 2018-08-09T08:00:27.575777 01:00 0 [Note] InnoDB: Creating shared tablespace for temporary tables
280 2018-08-09T08:00:27.575872 01:00 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
281 2018-08-09T08:00:28.063310 01:00 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
282 2018-08-09T08:00:28.064352 01:00 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
283 2018-08-09T08:00:28.064370 01:00 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
284 2018-08-09T08:00:28.065740 01:00 0 [Note] InnoDB: Waiting for purge to start
285 2018-08-09T08:00:28.116905 01:00 0 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.7.22-rel22 started; log sequence number 2605219
286 2018-08-09T08:00:28.117131 01:00 0 [Note] Plugin 'FEDERATED' is disabled.
287 2018-08-09T08:00:28.123701 01:00 0 [Note] InnoDB: Loading buffer pool(s) from /data/mysql/mysql3308/data/ib_buffer_pool
288 2018-08-09T08:00:28.123749 01:00 0 [ERROR] InnoDB: Cannot open '/data/mysql/mysql3308/data/ib_buffer_pool' for reading: No such file or directory
289 2018-08-09T08:00:28.126137 01:00 0 [Note] Recovering after a crash using /data/mysql/mysql3308/logs/mysql-bin
290 2018-08-09T08:00:28.126167 01:00 0 [Note] WSREP: Before binlog recovery (wsrep position bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22)
291 2018-08-09T08:00:28.128885 01:00 0 [Note] Starting crash recovery...
292 2018-08-09T08:00:28.128936 01:00 0 [Note] Crash recovery finished.
293 2018-08-09T08:00:28.128955 01:00 0 [Note] WSREP: After binlog recovery (wsrep position bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22)
294 2018-08-09T08:00:28.135097 01:00 0 [Note] Salting uuid generator variables, current_pid: 5367, server_start_time: 1533794402, bytes_sent: 0, 
295 2018-08-09T08:00:28.135163 01:00 0 [Note] Generated uuid: '83fac5b7-9b99-11e8-9f3a-080027de0e0e', server_start_time: 1510676201539890521, bytes_sent: 51827952
296 2018-08-09T08:00:28.135180 01:00 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 83fac5b7-9b99-11e8-9f3a-080027de0e0e.
297 2018-08-09T08:00:28.649143 01:00 0 [Note] Auto generated SSL certificates are placed in data directory.
298 2018-08-09T08:00:28.651737 01:00 0 [Warning] CA certificate ca.pem is self signed.
299 2018-08-09T08:00:28.812659 01:00 0 [Note] Auto generated RSA key files are placed in data directory.
300 2018-08-09T08:00:28.812836 01:00 0 [Note] Server hostname (bind-address): '*'; port: 3308
301 2018-08-09T08:00:28.812866 01:00 0 [Note] IPv6 is available.
302 2018-08-09T08:00:28.816928 01:00 0 [Note]   - '::' resolves to '::';
303 2018-08-09T08:00:28.821691 01:00 0 [Note] Server socket created on IP: '::'.
304 2018-08-09T08:00:28.846925 01:00 0 [Warning] 'user' entry 'root@localhost' ignored in --skip-name-resolve mode.
305 2018-08-09T08:00:28.846986 01:00 0 [Warning] 'user' entry 'mysql.session@localhost' ignored in --skip-name-resolve mode.
306 2018-08-09T08:00:28.847001 01:00 0 [Warning] 'user' entry 'mysql.sys@localhost' ignored in --skip-name-resolve mode.
307 2018-08-09T08:00:28.847028 01:00 0 [Warning] 'user' entry 'sst@localhost' ignored in --skip-name-resolve mode.
308 2018-08-09T08:00:28.847089 01:00 0 [Warning] 'db' entry 'performance_schema mysql.session@localhost' ignored in --skip-name-resolve mode.
309 2018-08-09T08:00:28.847097 01:00 0 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.
310 2018-08-09T08:00:28.847124 01:00 0 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.
311 2018-08-09T08:00:28.858902 01:00 0 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.
312 2018-08-09T08:00:28.858929 01:00 0 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.
313 2018-08-09T08:00:28.873861 01:00 0 [Note] Event Scheduler: Loaded 0 events
314 2018-08-09T08:00:28.874109 01:00 0 [Note] WSREP: Signalling provider to continue on SST completion.
315 2018-08-09T08:00:28.874133 01:00 0 [Note] WSREP: Initialized wsrep sidno 2
316 2018-08-09T08:00:28.874156 01:00 0 [Note] WSREP: SST received: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:22
317 2018-08-09T08:00:28.874266 01:00 0 [Note] mysqld: ready for connections.
318 Version: '5.7.22-22-29.26-log'  socket: '/tmp/mysql3308.sock'  port: 3308  Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
319 2018-08-09T08:00:28.875367 01:00 0 [Note] WSREP: 2.0 (zlm4): State transfer from 0.0 (zlm2) complete.
320 2018-08-09T08:00:28.875409 01:00 0 [Note] WSREP: SST leaving flow control
321 2018-08-09T08:00:28.875418 01:00 0 [Note] WSREP: Shifting JOINER -> JOINED (TO: 22)
322 2018-08-09T08:00:28.876587 01:00 0 [Note] WSREP: Member 2.0 (zlm4) synced with group.
323 2018-08-09T08:00:28.876618 01:00 0 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 22)
324 2018-08-09T08:00:28.876639 01:00 2 [Note] WSREP: Synchronized with group, ready for connections
325 2018-08-09T08:00:28.876645 01:00 2 [Note] WSREP: Setting wsrep_ready to true
326 2018-08-09T08:00:28.876649 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
327 
328 //It's okay now.No error is found this time.

 

 

  

Implement a master-slave structure between node zlm3 and zlm4.

*Step 3: Rescue data.**

  1 //Create a replication user on node zlm3.
  2 (zlm@192.168.1.102 3308)[zlm]>grant all privileges on *.* to repl@'192.168.1.%' identified by 'repl4slave';
  3 ERROR 1045 (28000): Access denied for user 'zlm'@'192.168.1.%' (using password: YES)
  4 (zlm@192.168.1.102 3308)[zlm]>q
  5 Bye
  6 
  7 [root@zlm3 10:11:28 /data/mysql/mysql3308/data]
  8 #mysql -uroot -pPassw0rd -hlocalhost -P3308
  9 mysql: [Warning] Using a password on the command line interface can be insecure.
 10 ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql3306.sock' (2)
 11 
 12 [root@zlm3 10:11:48 /data/mysql/mysql3308/data]
 13 #mysql -uroot -pPassw0rd -hlocalhost -P3308 -S /tmp/mysql3308.sock
 14 mysql: [Warning] Using a password on the command line interface can be insecure.
 15 Welcome to the MySQL monitor.  Commands end with ; or g.
 16 Your MySQL connection id is 8
 17 Server version: 5.7.22-22-29.26-log Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
 18 
 19 Copyright (c) 2009-2018 Percona LLC and/or its affiliates
 20 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
 21 
 22 Oracle is a registered trademark of Oracle Corporation and/or its
 23 affiliates. Other names may be trademarks of their respective
 24 owners.
 25 
 26 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
 27 
 28 (root@localhost mysql3308.sock)[(none)]>grant all privileges on *.* to repl@'192.168.1.%' identified by 'repl4slave';
 29 Query OK, 0 rows affected, 1 warning (0.00 sec)
 30 
 31 (root@localhost mysql3308.sock)[(none)]>select user,host from mysql.user;
 32  --------------- ------------- 
 33 | user          | host        |
 34  --------------- ------------- 
 35 | repl          | 192.168.1.% |
 36 | zlm           | 192.168.1.% |
 37 | mysql.session | localhost   |
 38 | mysql.sys     | localhost   |
 39 | root          | localhost   |
 40 | sst           | localhost   |
 41  --------------- ------------- 
 42 6 rows in set (0.01 sec)
 43 
 44 //Execute "change master to ... " on node zlm4.
 45 [root@zlm4 10:14:37 /data/mysql/mysql3308]
 46 #mysql -uzlm -pzlmzlm -h192.168.1.103 -P3308
 47 mysql: [Warning] Using a password on the command line interface can be insecure.
 48 Welcome to the MySQL monitor.  Commands end with ; or g.
 49 Your MySQL connection id is 2
 50 Server version: 5.7.22-22-29.26-log Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
 51 
 52 Copyright (c) 2009-2018 Percona LLC and/or its affiliates
 53 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
 54 
 55 Oracle is a registered trademark of Oracle Corporation and/or its
 56 affiliates. Other names may be trademarks of their respective
 57 owners.
 58 
 59 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
 60 
 61 (zlm@192.168.1.103 3308)[(none)]>change master to master_host='192.168.1.102',master_port=3308,master_user='repl',master_password='repl4slave',master_auto_position=1;
 62 Query OK, 0 rows affected, 1 warning (0.02 sec)
 63 
 64 (zlm@192.168.1.103 3308)[(none)]>start slave;
 65 Query OK, 0 rows affected (0.02 sec)
 66 
 67 (zlm@192.168.1.103 3308)[(none)]>show slave statusG
 68 *************************** 1. row ***************************
 69                Slave_IO_State: Waiting for master to send event
 70                   Master_Host: 192.168.1.102
 71                   Master_User: repl
 72                   Master_Port: 3308
 73                 Connect_Retry: 60
 74               Master_Log_File: mysql-bin.000023
 75           Read_Master_Log_Pos: 1397
 76                Relay_Log_File: zlm4-relay-bin.000002
 77                 Relay_Log_Pos: 367
 78         Relay_Master_Log_File: mysql-bin.000023
 79              Slave_IO_Running: Yes
 80             Slave_SQL_Running: No
 81               Replicate_Do_DB: 
 82           Replicate_Ignore_DB: 
 83            Replicate_Do_Table: 
 84        Replicate_Ignore_Table: 
 85       Replicate_Wild_Do_Table: 
 86   Replicate_Wild_Ignore_Table: 
 87                    Last_Errno: 1007
 88                    Last_Error: Coordinator stopped because there were error(s) in the worker(s). The most recent failure being: Worker 1 failed executing transaction '42aada54-65ea-ee17-55f0-b47cf387c038:20' at master log mysql-bin.000023, end_log_pos 350. See error log and/or performance_schema.replication_applier_status_by_worker table for more details about this failure or others, if any.
 89                  Skip_Counter: 0
 90           Exec_Master_Log_Pos: 194
 91               Relay_Log_Space: 1776
 92               Until_Condition: None
 93                Until_Log_File: 
 94                 Until_Log_Pos: 0
 95            Master_SSL_Allowed: No
 96            Master_SSL_CA_File: 
 97            Master_SSL_CA_Path: 
 98               Master_SSL_Cert: 
 99             Master_SSL_Cipher: 
100                Master_SSL_Key: 
101         Seconds_Behind_Master: NULL
102 Master_SSL_Verify_Server_Cert: No
103                 Last_IO_Errno: 0
104                 Last_IO_Error: 
105                Last_SQL_Errno: 1007
106                Last_SQL_Error: Coordinator stopped because there were error(s) in the worker(s). The most recent failure being: Worker 1 failed executing transaction '42aada54-65ea-ee17-55f0-b47cf387c038:20' at master log mysql-bin.000023, end_log_pos 350. See error log and/or performance_schema.replication_applier_status_by_worker table for more details about this failure or others, if any.
107   Replicate_Ignore_Server_Ids: 
108              Master_Server_Id: 1023308
109                   Master_UUID: 3ba41aa7-9b79-11e8-ad75-080027de0e0e
110              Master_Info_File: /data/mysql/mysql3308/data/master.info
111                     SQL_Delay: 0
112           SQL_Remaining_Delay: NULL
113       Slave_SQL_Running_State: 
114            Master_Retry_Count: 86400
115                   Master_Bind: 
116       Last_IO_Error_Timestamp: 
117      Last_SQL_Error_Timestamp: 180809 10:18:58
118                Master_SSL_Crl: 
119            Master_SSL_Crlpath: 
120            Retrieved_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:20-24
121             Executed_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:1-19
122                 Auto_Position: 1
123          Replicate_Rewrite_DB: 
124                  Channel_Name: 
125            Master_TLS_Version: 
126 1 row in set (0.00 sec)
127 
128 //The error log shows below.
129 2018-08-09T10:15:45.368412 01:00 2 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=zlm4-relay-bin' to avoid this problem.
130 2018-08-09T10:15:45.382500 01:00 2 [Note] 'CHANGE MASTER TO FOR CHANNEL '' executed'. Previous state master_host='', master_port= 3306, master_log_file='', master_log_pos= 4, master_bind=''. New state master_host='192.168.1.102', master_port= 3308, master_log_file='', master_log_pos= 4, master_bind=''.
131 2018-08-09T10:18:58.164370 01:00 3 [Warning] Storing MySQL user name or password information in the master info repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START SLAVE; see the 'START SLAVE Syntax' in the MySQL Manual for more information.
132 2018-08-09T10:18:58.173589 01:00 3 [Note] Slave I/O thread for channel '': connected to master 'repl@192.168.1.102:3308',replication started in log 'FIRST' at position 4
133 2018-08-09T10:18:58.180721 01:00 4 [Warning] Slave SQL for channel '': If a crash happens this configuration does not guarantee that the relay log info will be consistent, Error_code: 0
134 2018-08-09T10:18:58.180761 01:00 4 [Note] Slave SQL thread for channel '' initialized, starting replication in log 'FIRST' at position 0, relay log './zlm4-relay-bin.000001' position: 4
135 2018-08-09T10:18:58.202347 01:00 5 [ERROR] Slave SQL for channel '': Worker 1 failed executing transaction '42aada54-65ea-ee17-55f0-b47cf387c038:20' at master log mysql-bin.000023, end_log_pos 350; Error 'Can't create database 'zlm'; database exists' on query. Default database: 'zlm'. Query: 'create database zlm', Error_code: 1007
136 2018-08-09T10:18:58.202651 01:00 4 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START". We stopped at log 'mysql-bin.000023' position 194
137 
138 //Check the "replication_applier_status_by_worker" table for detail.
139 (zlm@192.168.1.103 3308)[(none)]>select * from performance_schema.replication_applier_status_by_workerG
140 *************************** 1. row ***************************
141          CHANNEL_NAME: 
142             WORKER_ID: 1
143             THREAD_ID: NULL
144         SERVICE_STATE: OFF
145 LAST_SEEN_TRANSACTION: 42aada54-65ea-ee17-55f0-b47cf387c038:20
146     LAST_ERROR_NUMBER: 1007
147    LAST_ERROR_MESSAGE: Worker 1 failed executing transaction '42aada54-65ea-ee17-55f0-b47cf387c038:20' at master log mysql-bin.000023, end_log_pos 350; Error 'Can't create database 'zlm'; database exists' on query. Default database: 'zlm'. Query: 'create database zlm'
148  LAST_ERROR_TIMESTAMP: 2018-08-09 16:18:58
149 *************************** 2. row ***************************
150          CHANNEL_NAME: 
151             WORKER_ID: 2
152             THREAD_ID: NULL
153         SERVICE_STATE: OFF
154 LAST_SEEN_TRANSACTION: 
155     LAST_ERROR_NUMBER: 0
156    LAST_ERROR_MESSAGE: 
157  LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00
158 *************************** 3. row ***************************
159          CHANNEL_NAME: 
160             WORKER_ID: 3
161             THREAD_ID: NULL
162         SERVICE_STATE: OFF
163 LAST_SEEN_TRANSACTION: 
164     LAST_ERROR_NUMBER: 0
165    LAST_ERROR_MESSAGE: 
166  LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00
167 *************************** 4. row ***************************
168          CHANNEL_NAME: 
169             WORKER_ID: 4
170             THREAD_ID: NULL
171         SERVICE_STATE: OFF
172 LAST_SEEN_TRANSACTION: 
173     LAST_ERROR_NUMBER: 0
174    LAST_ERROR_MESSAGE: 
175  LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00
176 4 rows in set (0.00 sec)
177 
178 //Check the target database and table.
179 (zlm@192.168.1.103 3308)[(none)]>show databases;
180  -------------------- 
181 | Database           |
182  -------------------- 
183 | information_schema |
184 | mysql              |
185 | performance_schema |
186 | sys                |
187 | zlm                |
188  -------------------- 
189 5 rows in set (0.00 sec)
190 
191 (zlm@192.168.1.103 3308)[(none)]>use zlm
192 Reading table information for completion of table and column names
193 You can turn off this feature to get a quicker startup with -A
194 
195 Database changed
196 (zlm@192.168.1.103 3308)[zlm]>show tables;
197  --------------- 
198 | Tables_in_zlm |
199  --------------- 
200 | t1            |
201  --------------- 
202 1 row in set (0.00 sec)
203 
204 (zlm@192.168.1.103 3308)[zlm]>select * from t1;
205  ---- ------------ 
206 | id | name       |
207  ---- ------------ 
208 |  1 | MySQL      |
209 |  2 | Oracle     |
210 |  3 | PostgreSQL |
211  ---- ------------ 
212 3 rows in set (0.01 sec)
213 
214 //The changes on node zlm3 has been replicated to zlm4.
215 
216 [root@zlm4 10:35:51 /data/mysql/mysql3308/logs]
217 #ls -l
218 total 16
219 -rw-r----- 1 mysql mysql 194 Aug  9 08:00 mysql-bin.000024
220 -rw-r----- 1 mysql mysql 217 Aug  9 09:02 mysql-bin.000025
221 -rw-r----- 1 mysql mysql 194 Aug  9 10:08 mysql-bin.000026
222 -rw-r----- 1 mysql mysql 132 Aug  9 10:08 mysql-bin.index
223 
224 //No mysql-bin.000023 was found.Check the relay-log file.
225 [root@zlm4 10:38:16 /data/mysql/mysql3308/data]
226 #ls -l|grep relay
227 -rw-r----- 1 mysql mysql        58 Aug  9 10:18 relay-log.info
228 -rw-r----- 1 mysql mysql        84 Aug  9 10:18 worker-relay-log.info.1
229 -rw-r----- 1 mysql mysql        84 Aug  9 10:18 worker-relay-log.info.2
230 -rw-r----- 1 mysql mysql        84 Aug  9 10:18 worker-relay-log.info.3
231 -rw-r----- 1 mysql mysql        84 Aug  9 10:18 worker-relay-log.info.4
232 -rw-r----- 1 mysql mysql       206 Aug  9 10:18 zlm4-relay-bin.000001
233 -rw-r----- 1 mysql mysql      1570 Aug  9 10:18 zlm4-relay-bin.000002
234 -rw-r----- 1 mysql mysql        48 Aug  9 10:18 zlm4-relay-bin.index
235 
236 [root@zlm4 10:38:30 /data/mysql/mysql3308/data]
237 #mysqlbinlog -v --base64-output=decode-rows zlm4-relay-bin.000002 > ~/02.log
238 
239 [root@zlm4 10:38:46 /data/mysql/mysql3308/data]
240 #cd
241 
242 [root@zlm4 10:38:49 ~]
243 #cat 02.log 
244 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
245 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
246 DELIMITER /*!*/;
247 # at 4
248 #180809 10:18:58 server id 1033308  end_log_pos 123 CRC32 0x4367bb3e     Start: binlog v 4, server v 5.7.22-22-29.26-log created 180809 10:18:58
249 # This Format_description_event appears in a relay log and was generated by the slave thread.
250 # at 123
251 #180809 10:18:58 server id 1033308  end_log_pos 154 CRC32 0xf3605911     Previous-GTIDs
252 # [empty]
253 # at 154
254 #700101  1:00:00 server id 1023308  end_log_pos 0 CRC32 0xb5bcfbb7     Rotate to mysql-bin.000023  pos: 4
255 # at 201
256 #180809  4:09:22 server id 1023308  end_log_pos 123 CRC32 0x6f7e8565     Start: binlog v 4, server v 5.7.22-22-29.26-log created 180809  4:09:22 at startup
257 ROLLBACK/*!*/;
258 # at 320
259 #180809 10:18:58 server id 0  end_log_pos 367 CRC32 0xa757553d     Rotate to mysql-bin.000023  pos: 194
260 # at 367
261 #180809  9:07:52 server id 1023308  end_log_pos 259 CRC32 0x531076d3     GTID    last_committed=0    sequence_number=1    rbr_only=no
262 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:20'/*!*/;
263 # at 432
264 #180809  9:07:52 server id 1023308  end_log_pos 350 CRC32 0x9acb4e3f     Query    thread_id=5    exec_time=0    error_code=0
265 SET TIMESTAMP=1533798472/*!*/;
266 SET @@session.pseudo_thread_id=5/*!*/;
267 SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
268 SET @@session.sql_mode=1436549152/*!*/;
269 SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
270 /*!C utf8 *//*!*/;
271 SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
272 SET @@session.lc_time_names=0/*!*/;
273 SET @@session.collation_database=DEFAULT/*!*/;
274 create database zlm
275 /*!*/;
276 # at 523
277 #180809  9:08:36 server id 1023308  end_log_pos 415 CRC32 0xde316a34     GTID    last_committed=1    sequence_number=2    rbr_only=no
278 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:21'/*!*/;
279 # at 588
280 #180809  9:08:36 server id 1023308  end_log_pos 557 CRC32 0xb29bd4ab     Query    thread_id=5    exec_time=0    error_code=0
281 use `zlm`/*!*/;
282 SET TIMESTAMP=1533798516/*!*/;
283 create table t1(
284 id int,
285 name char(10)
286 ) engine=innodb charset=utf8mb4
287 /*!*/;
288 # at 730
289 #180809  9:13:42 server id 1023308  end_log_pos 622 CRC32 0x2a5f6414     GTID    last_committed=2    sequence_number=3    rbr_only=no
290 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:22'/*!*/;
291 # at 795
292 #180809  9:13:42 server id 1023308  end_log_pos 728 CRC32 0xa803e3aa     Query    thread_id=5    exec_time=0    error_code=0
293 SET TIMESTAMP=1533798822/*!*/;
294 alter table t1 add primary key(id)
295 /*!*/;
296 # at 901
297 #180809  9:13:46 server id 1023308  end_log_pos 793 CRC32 0xfd677245     GTID    last_committed=3    sequence_number=4    rbr_only=yes
298 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
299 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:23'/*!*/;
300 # at 966
301 #180809  9:13:46 server id 1023308  end_log_pos 869 CRC32 0x7b568d5a     Query    thread_id=5    exec_time=0    error_code=0
302 SET TIMESTAMP=1533798826/*!*/;
303 SET @@session.auto_increment_increment=2, @@session.auto_increment_offset=2/*!*/;
304 BEGIN
305 /*!*/;
306 # at 1042
307 # at 1128
308 #180809  9:13:46 server id 1023308  end_log_pos 1002 CRC32 0x8b4e5e6b     Table_map: `zlm`.`t1` mapped to number 110
309 # at 1175
310 #180809  9:13:46 server id 1023308  end_log_pos 1076 CRC32 0x51750bc0     Write_rows: table id 110 flags: STMT_END_F
311 ### INSERT INTO `zlm`.`t1`
312 ### SET
313 ###   @1=1
314 ###   @2='MySQL'
315 ### INSERT INTO `zlm`.`t1`
316 ### SET
317 ###   @1=2
318 ###   @2='Oracle'
319 ### INSERT INTO `zlm`.`t1`
320 ### SET
321 ###   @1=3
322 ###   @2='PostgreSQL'
323 # at 1249
324 #180809  9:13:46 server id 1023308  end_log_pos 1107 CRC32 0x6033f0ee     Xid = 26
325 COMMIT/*!*/;
326 # at 1280
327 #180809 10:12:07 server id 1023308  end_log_pos 1172 CRC32 0x66f4de8c     GTID    last_committed=4    sequence_number=5    rbr_only=no
328 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:24'/*!*/;
329 # at 1345
330 #180809 10:12:07 server id 1023308  end_log_pos 1397 CRC32 0x86665c03     Query    thread_id=8    exec_time=0    error_code=0
331 SET TIMESTAMP=1533802327/*!*/;
332 SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
333 GRANT ALL PRIVILEGES ON *.* TO 'repl'@'192.168.1.%' IDENTIFIED WITH 'mysql_native_password' AS '*872ECE72A7EBAC6A183C90D7043D5F359BD85A9E'
334 /*!*/;
335 SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
336 DELIMITER ;
337 # End of log file
338 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
339 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
340 
341 //Clean the value of variable "gtid_purged".
342 (zlm@192.168.1.103 3308)[(none)]>reset master;
343 Query OK, 0 rows affected (0.03 sec)
344 
345 (zlm@192.168.1.103 3308)[(none)]>set @@global.gtid_purged='42aada54-65ea-ee17-55f0-b47cf387c038:1-24';
346 Query OK, 0 rows affected (0.01 sec)
347 
348 (zlm@192.168.1.103 3308)[(none)]>start slave sql_thread;
349 Query OK, 0 rows affected (0.00 sec)
350 
351 (zlm@192.168.1.103 3308)[(none)]>show slave statusG
352 *************************** 1. row ***************************
353                Slave_IO_State: Waiting for master to send event
354                   Master_Host: 192.168.1.102
355                   Master_User: repl
356                   Master_Port: 3308
357                 Connect_Retry: 60
358               Master_Log_File: mysql-bin.000023
359           Read_Master_Log_Pos: 1397
360                Relay_Log_File: zlm4-relay-bin.000002
361                 Relay_Log_Pos: 1570
362         Relay_Master_Log_File: mysql-bin.000023
363              Slave_IO_Running: Yes
364             Slave_SQL_Running: Yes
365               Replicate_Do_DB: 
366           Replicate_Ignore_DB: 
367            Replicate_Do_Table: 
368        Replicate_Ignore_Table: 
369       Replicate_Wild_Do_Table: 
370   Replicate_Wild_Ignore_Table: 
371                    Last_Errno: 0
372                    Last_Error: 
373                  Skip_Counter: 0
374           Exec_Master_Log_Pos: 1397
375               Relay_Log_Space: 1776
376               Until_Condition: None
377                Until_Log_File: 
378                 Until_Log_Pos: 0
379            Master_SSL_Allowed: No
380            Master_SSL_CA_File: 
381            Master_SSL_CA_Path: 
382               Master_SSL_Cert: 
383             Master_SSL_Cipher: 
384                Master_SSL_Key: 
385         Seconds_Behind_Master: 0
386 Master_SSL_Verify_Server_Cert: No
387                 Last_IO_Errno: 0
388                 Last_IO_Error: 
389                Last_SQL_Errno: 0
390                Last_SQL_Error: 
391   Replicate_Ignore_Server_Ids: 
392              Master_Server_Id: 1023308
393                   Master_UUID: 3ba41aa7-9b79-11e8-ad75-080027de0e0e
394              Master_Info_File: /data/mysql/mysql3308/data/master.info
395                     SQL_Delay: 0
396           SQL_Remaining_Delay: NULL
397       Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
398            Master_Retry_Count: 86400
399                   Master_Bind: 
400       Last_IO_Error_Timestamp: 
401      Last_SQL_Error_Timestamp: 
402                Master_SSL_Crl: 
403            Master_SSL_Crlpath: 
404            Retrieved_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:20-24
405             Executed_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:1-24
406                 Auto_Position: 1
407          Replicate_Rewrite_DB: 
408                  Channel_Name: 
409            Master_TLS_Version: 
410 1 row in set (0.00 sec)

 

 

Insert a new record in table "t1" on node zlm3.

Prepare to restore the backup with "--apply-log" on zlm2.

 1 (root@localhost mysql3308.sock)[(none)]>use zlm
 2 Reading table information for completion of table and column names
 3 You can turn off this feature to get a quicker startup with -A
 4 
 5 Database changed
 6 (root@localhost mysql3308.sock)[zlm]>insert into t1 values(4,'Redis');
 7 Query OK, 1 row affected (0.01 sec)
 8 
 9 (root@localhost mysql3308.sock)[zlm]>select * from t1;
10  ---- ------------ 
11 | id | name       |
12  ---- ------------ 
13 |  1 | MySQL      |
14 |  2 | Oracle     |
15 |  3 | PostgreSQL |
16 |  4 | Redis      |
17  ---- ------------ 
18 4 rows in set (0.00 sec)
 1 [root@zlm2 16:38:09 /data/backup]
 2 #ls -l
 3 total 4
 4 drwxr-x--- 7 root root 4096 Jul 29 16:37 2018-07-29_16-32-33
 5 
 6 [root@zlm2 16:38:12 /data/backup]
 7 #innobackupex -v
 8 xtrabackup: recognized server arguments: --datadir=/var/lib/mysql 
 9 innobackupex version 2.4.12 Linux (x86_64) (revision id: 170eb8c)
10 
11 [root@zlm2 16:39:13 /data/backup]
12 #innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -pPassw0rd --apply-log /data/backup/2018-07-29_16-32-33/
13 ... //Omitted.
14 
15 xtrabackup: starting shutdown with innodb_fast_shutdown = 1
16 InnoDB: page_cleaner: 1000ms intended loop took 8812ms. The settings might not be optimal. (flushed=0 and evicted=0, during the time.)
17 InnoDB: FTS optimize thread exiting.
18 InnoDB: Starting shutdown...
19 InnoDB: Shutdown completed; log sequence number 1719676456
20 180729 16:39:39 completed OK!

 

 

**Stop slave and check the value of  "Relay_Master_Log_File**","**Exec_Master_Log_Pos**" and "**Retrieved_Gtid_Set**".**

Shutdown instance and copy back.

 

 1 [root@zlm2 16:39:39 /data/backup]
 2 #ps aux|grep mysqld
 3 mysql     3771  0.0 18.7 1071816 190784 pts/0  Sl   15:52   0:01 mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf
 4 root      4451  0.0  0.0 112640   956 pts/1    R    16:43   0:00 grep --color=auto mysqld
 5 
 6 [root@zlm2 16:43:10 /data/backup]
 7 #mysqladmin shutdown
 8 
 9 [root@zlm2 16:43:15 /data/backup]
10 #ps aux|grep mysqld
11 root      4463  0.0  0.0 112640   956 pts/1    R    16:43   0:00 grep --color=auto mysqld
12 
13 [root@zlm2 16:43:18 /data/backup]
14 #cd /data/mysql/mysql3306/data/
15 
16 [root@zlm2 16:43:36 /data/mysql/mysql3306/data]
17 #rm -rf *
18 
19 [root@zlm2 16:43:39 /data/mysql/mysql3306/data]
20 #cd ../logs
21 
22 [root@zlm2 16:43:50 /data/mysql/mysql3306/logs]
23 #rm -rf *
24 
25 [root@zlm2 16:43:53 /data/mysql/mysql3306/logs]
26 #innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -pPassw0rd --copy-back /data/backup/2018-07-29_16-32-33/
27 ... //Omitted.
 1 (zlm@192.168.1.103 3308)[(none)]>stop slave;
 2 Query OK, 0 rows affected (0.01 sec)
 3 
 4 (zlm@192.168.1.103 3308)[(none)]>show slave statusG
 5 *************************** 1. row ***************************
 6                Slave_IO_State: 
 7                   Master_Host: 192.168.1.102
 8                   Master_User: repl
 9                   Master_Port: 3308
10                 Connect_Retry: 60
11               Master_Log_File: mysql-bin.000023
12           Read_Master_Log_Pos: 1718
13                Relay_Log_File: zlm4-relay-bin.000003
14                 Relay_Log_Pos: 775
15         Relay_Master_Log_File: mysql-bin.000023 //This binlog file is which one we need to analyze later on master node zlm3.
16              Slave_IO_Running: No
17             Slave_SQL_Running: No
18               Replicate_Do_DB: 
19           Replicate_Ignore_DB: 
20            Replicate_Do_Table: 
21        Replicate_Ignore_Table: 
22       Replicate_Wild_Do_Table: 
23   Replicate_Wild_Ignore_Table: 
24                    Last_Errno: 0
25                    Last_Error: 
26                  Skip_Counter: 0
27           Exec_Master_Log_Pos: 1718 //This position is where we need to set the Xid.
28               Relay_Log_Space: 2397
29               Until_Condition: None
30                Until_Log_File: 
31                 Until_Log_Pos: 0
32            Master_SSL_Allowed: No
33            Master_SSL_CA_File: 
34            Master_SSL_CA_Path: 
35               Master_SSL_Cert: 
36             Master_SSL_Cipher: 
37                Master_SSL_Key: 
38         Seconds_Behind_Master: NULL
39 Master_SSL_Verify_Server_Cert: No
40                 Last_IO_Errno: 0
41                 Last_IO_Error: 
42                Last_SQL_Errno: 0
43                Last_SQL_Error: 
44   Replicate_Ignore_Server_Ids: 
45              Master_Server_Id: 1023308
46                   Master_UUID: 3ba41aa7-9b79-11e8-ad75-080027de0e0e
47              Master_Info_File: /data/mysql/mysql3308/data/master.info
48                     SQL_Delay: 0
49           SQL_Remaining_Delay: NULL
50       Slave_SQL_Running_State: 
51            Master_Retry_Count: 86400
52                   Master_Bind: 
53       Last_IO_Error_Timestamp: 
54      Last_SQL_Error_Timestamp: 
55                Master_SSL_Crl: 
56            Master_SSL_Crlpath: 
57            Retrieved_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:20-25
58             Executed_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:1-25
59                 Auto_Position: 1
60          Replicate_Rewrite_DB: 
61                  Channel_Name: 
62            Master_TLS_Version: 
63 1 row in set (0.00 sec)

 

 

Restart instance and check table.

Analyze the binlog file we get above(here is mysql-bin.000023).

 1 [root@zlm2 16:44:41 /data/mysql/mysql3306/logs]
 2 #cd ../data
 3 
 4 [root@zlm2 16:47:40 /data/mysql/mysql3306/data]
 5 #chown -R mysql.mysql *
 6 
 7 [root@zlm2 16:47:49 /data/mysql/mysql3306/data]
 8 #sh /root/mysqld.sh
 9 
10 [root@zlm2 16:47:56 /data/mysql/mysql3306/data]
11 #ps aux|grep mysqld
12 mysql     4514  3.2 17.9 1071804 182316 pts/1  Sl   16:47   0:00 mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf
13 root      4547  0.0  0.0 112640   960 pts/1    R    16:48   0:00 grep --color=auto mysqld
14 
15 [root@zlm2 16:48:03 /data/mysql/mysql3306/data]
16 #mysql
17 Welcome to the MySQL monitor.  Commands end with ; or g.
18 Your MySQL connection id is 2
19 Server version: 5.7.21-log MySQL Community Server (GPL)
20 
21 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
22 
23 Oracle is a registered trademark of Oracle Corporation and/or its
24 affiliates. Other names may be trademarks of their respective
25 owners.
26 
27 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
28 
29 zlm@192.168.56.101:3306 [(none)]>use sysbench
30 Reading table information for completion of table and column names
31 You can turn off this feature to get a quicker startup with -A
32 
33 Database changed
34 zlm@192.168.56.101:3306 [sysbench]>show tables;
35  -------------------- 
36 | Tables_in_sysbench |
37  -------------------- 
38 | sbtest1            |
39 | sbtest2            |
40 | sbtest3            |
41 | sbtest4            |
42 | sbtest5            |
43 | sbtest6            |
44  -------------------- 
45 6 rows in set (0.00 sec)
46 
47 zlm@192.168.56.101:3306 [sysbench]>select * from sbtest6;
48  ---- --- --- ----- 
49 | id | k | c | pad |
50  ---- --- --- ----- 
51 |  1 | 1 | a | b   |
52  ---- --- --- ----- 
53 1 row in set (0.00 sec)
  1 [root@zlm3 10:54:51 /data/mysql/mysql3308/logs]
  2 #mysqlbinlog -v --base64-output=decode-rows mysql-bin.000023 > ~/23.log
  3 
  4 [root@zlm3 10:55:27 /data/mysql/mysql3308/logs]
  5 #cat ~/23.log
  6 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
  7 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
  8 DELIMITER /*!*/;
  9 # at 4
 10 #180809  4:09:22 server id 1023308  end_log_pos 123 CRC32 0x6f7e8565     Start: binlog v 4, server v 5.7.22-22-29.26-log created 180809  4:09:22 at startup
 11 # Warning: this binlog is either in use or was not closed properly.
 12 ROLLBACK/*!*/;
 13 # at 123
 14 #180809  4:09:22 server id 1023308  end_log_pos 194 CRC32 0x43a7c3b7     Previous-GTIDs
 15 # 42aada54-65ea-ee17-55f0-b47cf387c038:1-19
 16 # at 194
 17 #180809  9:07:52 server id 1023308  end_log_pos 259 CRC32 0x531076d3     GTID    last_committed=0    sequence_number=1    rbr_only=no
 18 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:20'/*!*/;
 19 # at 259
 20 #180809  9:07:52 server id 1023308  end_log_pos 350 CRC32 0x9acb4e3f     Query    thread_id=5    exec_time=0    error_code=0
 21 SET TIMESTAMP=1533798472/*!*/;
 22 SET @@session.pseudo_thread_id=5/*!*/;
 23 SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
 24 SET @@session.sql_mode=1436549152/*!*/;
 25 SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
 26 /*!C utf8 *//*!*/;
 27 SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
 28 SET @@session.lc_time_names=0/*!*/;
 29 SET @@session.collation_database=DEFAULT/*!*/;
 30 create database zlm
 31 /*!*/;
 32 # at 350
 33 #180809  9:08:36 server id 1023308  end_log_pos 415 CRC32 0xde316a34     GTID    last_committed=1    sequence_number=2    rbr_only=no
 34 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:21'/*!*/;
 35 # at 415
 36 #180809  9:08:36 server id 1023308  end_log_pos 557 CRC32 0xb29bd4ab     Query    thread_id=5    exec_time=0    error_code=0
 37 use `zlm`/*!*/;
 38 SET TIMESTAMP=1533798516/*!*/;
 39 create table t1(
 40 id int,
 41 name char(10)
 42 ) engine=innodb charset=utf8mb4
 43 /*!*/;
 44 # at 557
 45 #180809  9:13:42 server id 1023308  end_log_pos 622 CRC32 0x2a5f6414     GTID    last_committed=2    sequence_number=3    rbr_only=no
 46 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:22'/*!*/;
 47 # at 622
 48 #180809  9:13:42 server id 1023308  end_log_pos 728 CRC32 0xa803e3aa     Query    thread_id=5    exec_time=0    error_code=0
 49 SET TIMESTAMP=1533798822/*!*/;
 50 alter table t1 add primary key(id)
 51 /*!*/;
 52 # at 728
 53 #180809  9:13:46 server id 1023308  end_log_pos 793 CRC32 0xfd677245     GTID    last_committed=3    sequence_number=4    rbr_only=yes
 54 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
 55 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:23'/*!*/;
 56 # at 793
 57 #180809  9:13:46 server id 1023308  end_log_pos 869 CRC32 0x7b568d5a     Query    thread_id=5    exec_time=0    error_code=0
 58 SET TIMESTAMP=1533798826/*!*/;
 59 SET @@session.auto_increment_increment=2, @@session.auto_increment_offset=2/*!*/;
 60 BEGIN
 61 /*!*/;
 62 # at 869
 63 # at 955
 64 #180809  9:13:46 server id 1023308  end_log_pos 1002 CRC32 0x8b4e5e6b     Table_map: `zlm`.`t1` mapped to number 110
 65 # at 1002
 66 #180809  9:13:46 server id 1023308  end_log_pos 1076 CRC32 0x51750bc0     Write_rows: table id 110 flags: STMT_END_F
 67 ### INSERT INTO `zlm`.`t1`
 68 ### SET
 69 ###   @1=1
 70 ###   @2='MySQL'
 71 ### INSERT INTO `zlm`.`t1`
 72 ### SET
 73 ###   @1=2
 74 ###   @2='Oracle'
 75 ### INSERT INTO `zlm`.`t1`
 76 ### SET
 77 ###   @1=3
 78 ###   @2='PostgreSQL'
 79 # at 1076
 80 #180809  9:13:46 server id 1023308  end_log_pos 1107 CRC32 0x6033f0ee     Xid = 26
 81 COMMIT/*!*/;
 82 # at 1107
 83 #180809 10:12:07 server id 1023308  end_log_pos 1172 CRC32 0x66f4de8c     GTID    last_committed=4    sequence_number=5    rbr_only=no
 84 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:24'/*!*/;
 85 # at 1172
 86 #180809 10:12:07 server id 1023308  end_log_pos 1397 CRC32 0x86665c03     Query    thread_id=8    exec_time=0    error_code=0
 87 SET TIMESTAMP=1533802327/*!*/;
 88 SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
 89 GRANT ALL PRIVILEGES ON *.* TO 'repl'@'192.168.1.%' IDENTIFIED WITH 'mysql_native_password' AS '*872ECE72A7EBAC6A183C90D7043D5F359BD85A9E'
 90 /*!*/;
 91 # at 1397
 92 #180809 10:50:26 server id 1023308  end_log_pos 1462 CRC32 0x9e027e44     GTID    last_committed=5    sequence_number=6    rbr_only=yes
 93 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
 94 SET @@SESSION.GTID_NEXT= '42aada54-65ea-ee17-55f0-b47cf387c038:25'/*!*/;
 95 # at 1462
 96 #180809 10:50:26 server id 1023308  end_log_pos 1538 CRC32 0xe5d003cf     Query    thread_id=8    exec_time=0    error_code=0
 97 SET TIMESTAMP=1533804626/*!*/;
 98 SET @@session.auto_increment_increment=2, @@session.auto_increment_offset=2/*!*/;
 99 BEGIN
100 /*!*/;
101 # at 1538
102 # at 1594
103 #180809 10:50:26 server id 1023308  end_log_pos 1641 CRC32 0x81684c91     Table_map: `zlm`.`t1` mapped to number 110
104 # at 1641
105 #180809 10:50:26 server id 1023308  end_log_pos 1687 CRC32 0x19b42ee8     Write_rows: table id 110 flags: STMT_END_F
106 ### INSERT INTO `zlm`.`t1`
107 ### SET
108 ###   @1=4
109 ###   @2='Redis'
110 # at 1687
111 #180809 10:50:26 server id 1023308  end_log_pos 1718 CRC32 0x3429fa99     Xid = 28
112 COMMIT/*!*/;
113 SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
114 DELIMITER ;
115 # End of log file
116 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
117 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
118 
119 [root@zlm3 11:00:48 /data/mysql/mysql3308/logs]
120 #ls -l
121 total 12
122 -rw-r----- 1 mysql mysql  194 Aug  9 04:09 mysql-bin.000022
123 -rw-r----- 1 mysql mysql 1718 Aug  9 10:50 mysql-bin.000023 //The 1718 bytes is right the position we need to decide which Xid we should set.
124 -rw-r----- 1 mysql mysql   88 Aug  9 04:09 mysql-bin.index
125 
126 //As there're no other transactions found in mysql-bin.000023.The last "Xid = 28" is what we need to set on node zlm4.

 

 

*Step 4: **Implement a slave with binlog server.***

Modify the grastate.dat file on node zlm4(if not exist,touch a new file of it).

 

 1 [root@zlm4 11:07:38 /data/mysql/mysql3308/data]
 2 #vim grastate.dat
 3 
 4 [root@zlm4 11:08:01 /data/mysql/mysql3308/data]
 5 #cat grastate.dat 
 6 #cat grastate.dat
 7 # GALERA saved state
 8 version: 2.1
 9 uuid:    bd5525ab-9a15-11e8-aa0f-4b830c783fc7
10 seqno:   28
11 safe_to_bootstrap: 0
12 
13 [root@zlm4 11:08:42 /data/mysql/mysql3308/data]
14 #ls -l|grep grastate.dat 
15 -rw-r--r-- 1 root  root        131 Aug  9 11:08 grastate.dat
16 
17 [root@zlm4 11:08:03 /data/mysql/mysql3308/data]
18 #chown mysql.mysql grastate.dat 
19 
20 [root@zlm4 11:08:11 /data/mysql/mysql3308/data]
21 #ls -l|grep grastate.dat 
22 -rw-r--r-- 1 mysql mysql       131 Aug  9 11:08 grastate.dat

Start mysqld on binlog server.

 

 1 [root@zlm3 16:50:00 /data/mysql/mysql3306/logs]
 2 #ps aux|grep mysqld
 3 root      4405  0.0  0.0 112640   960 pts/0    R    16:50   0:00 grep --color=auto mysqld
 4 
 5 [root@zlm3 16:50:08 /data/mysql/mysql3306/logs]
 6 #sh /root/mysqld.sh
 7 
 8 [root@zlm3 16:50:13 /data/mysql/mysql3306/logs]
 9 #ps aux|grep mysqld
10 mysql     4411 16.5 15.6 498232 159408 pts/0   Rl   16:50   0:00 mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf
11 root      4429  0.0  0.0 112640   960 pts/0    R    16:50   0:00 grep --color=auto mysqld
12 
13 [root@zlm3 16:51:03 /data/mysql/mysql3306/logs]
14 #ls -l
15 total 11216
16 -rw-r----- 1 root  root      4128 Jul 29 08:42 mysql-bin.000095
17 -rw-r----- 1 root  root       241 Jul 29 08:42 mysql-bin.000096
18 -rw-r----- 1 root  root  11461562 Jul 29 09:07 mysql-bin.000097
19 -rw-r----- 1 mysql mysql      154 Jul 29 16:50 mysql-bin.000098
20 -rw-r----- 1 mysql mysql       44 Jul 29 16:50 mysql-bin.index
21 
22 [root@zlm3 16:51:04 /data/mysql/mysql3306/logs]
23 #cat mysql-bin.index
24 /data/mysql/mysql3306/logs/mysql-bin.000098

Modify the my3308.cnf file to restore the parameter of PXC.

 

 1 [root@zlm4 11:10:28 /data/mysql/mysql3308]
 2 #vim my3308.cnf 
 3 
 4 [root@zlm4 11:11:03 /data/mysql/mysql3308]
 5 #cat my3308.cnf |grep wsrep
 6 loose-wsrep_cluster_name=pxc_wubx 
 7 loose-wsrep_cluster_address=gcomm://192.168.1.101,192.168.1.102,192.168.1.103
 8 loose-wsrep_node_address=192.168.1.103
 9 loose-wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so
10 #loose-wsrep_sst_method=xtrabackup-v2
11 loose-wsrep_sst_method=rsync
12 loose-wsrep_sst_auth=sst:zlmzlm
13 #loose-wsrep_debug=on
14 #loose-wsrep_provider_options="debug=on"

Disguise the binlog server is a fake master.

 

 1 [root@zlm3 16:52:59 /data/mysql/mysql3306/logs]
 2 #rm -f mysql-bin.00009*
 3 [1]   Done                    mysqlbinlog -R --raw -h192.168.56.100 -urepl -prepl4slave -P3306 --stop-never mysql-bin.000098  (wd: /data)
 4 (wd now: /data/mysql/mysql3306/logs)
 5 
 6 [root@zlm3 17:00:06 /data/mysql/mysql3306/logs]
 7 #ls -l
 8 total 4
 9 -rw-r----- 1 mysql mysql 44 Jul 29 16:50 mysql-bin.index
10 
11 [root@zlm3 17:00:27 /data/mysql/mysql3306/logs]
12 #ps aux|grep mysqlbinlog
13 root      4475  0.0  0.0 112640   960 pts/0    R    17:00   0:00 grep --color=auto mysqlbinlog
14 
15 [root@zlm3 17:00:38 /data/mysql/mysql3306/logs]
16 #cp /data/mysql-bin* .
17 
18 [root@zlm3 17:02:48 /data/mysql/mysql3306/logs]
19 #ls -l
20 -rw-r----- 1 root  root  410 Jul 29 17:01 mysql-bin.000098
21 -rw-r----- 1 root  root  241 Jul 29 17:01 mysql-bin.000099
22 -rw-r----- 1 root  root  951 Jul 29 17:01 mysql-bin.000100
23 -rw-r----- 1 root  root  177 Jul 29 17:03 mysql-bin.index
24 
25 [root@zlm3 17:02:54 /data/mysql/mysql3306/logs]
26 #ls -1 | awk '{print i$0}' i=`pwd`'/'|grep mysql-bin.000 > mysql-bin.index
27 
28 [root@zlm3 17:03:06 /data/mysql/mysql3306/logs]
29 #cat mysql-bin.index 
30 /data/mysql/mysql3306/logs/mysql-bin.000098
31 /data/mysql/mysql3306/logs/mysql-bin.000099
32 /data/mysql/mysql3306/logs/mysql-bin.000100
33 
34 [root@zlm3 17:16:14 /data/mysql/mysql3306/logs]
35 #chown mysql.mysql *
36 
37 [root@zlm3 17:17:23 /data/mysql/mysql3306/logs]
38 #ls -l
39 total 16
40 -rw-r----- 1 mysql mysql 410 Jul 29 17:01 mysql-bin.000098
41 -rw-r----- 1 mysql mysql 241 Jul 29 17:01 mysql-bin.000099
42 -rw-r----- 1 mysql mysql 951 Jul 29 17:01 mysql-bin.000100
43 -rw-r----- 1 mysql mysql 177 Jul 29 17:03 mysql-bin.index

**Startup the mysqld on node zlm4.**

 

  1 [root@zlm4 11:17:09 /data/mysql/mysql3308]
  2 #!ps
  3 ps aux|grep mysqld
  4 mysql     6514 12.0 19.1 1256144 194664 pts/3  Dl   11:17   0:00 mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf
  5 root      6539  0.0  0.0 112640   960 pts/3    R    11:17   0:00 grep --color=auto mysqld
  6 
  7 //Check the error log for detail.
  8 [root@zlm4 11:17:01 /data/mysql/mysql3308/data]
  9 #tail -f error.log 
 10 
 11 2018-08-09T11:17:09.518383 01:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
 12 2018-08-09T11:17:09.519740 01:00 0 [Warning] Insecure configuration for --secure-file-priv: Location is accessible to all OS users. Consider choosing a different directory.
 13 2018-08-09T11:17:09.519805 01:00 0 [Note] mysqld (mysqld 5.7.22-22-29.26-log) starting as process 6514 ...
 14 2018-08-09T11:17:09.522792 01:00 0 [Note] WSREP: Setting wsrep_ready to false
 15 2018-08-09T11:17:09.522812 01:00 0 [Note] WSREP: No pre-stored wsrep-start position found. Skipping position initialization.
 16 2018-08-09T11:17:09.522818 01:00 0 [Note] WSREP: wsrep_load(): loading provider library '/usr/local/mysql/lib/libgalera_smm.so'
 17 2018-08-09T11:17:09.528196 01:00 0 [Note] WSREP: wsrep_load(): Galera 3.26(r) by Codership Oy <info@codership.com> loaded successfully.
 18 2018-08-09T11:17:09.528328 01:00 0 [Note] WSREP: CRC-32C: using hardware acceleration.
 19 2018-08-09T11:17:09.528860 01:00 0 [Note] WSREP: Found saved state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:28, safe_to_bootstrap: 0
 20 2018-08-09T11:17:09.534206 01:00 0 [Note] WSREP: Passing config to GCS: base_dir = /data/mysql/mysql3308/data/; base_host = 192.168.1.103; base_port = 4567; cert.log_conflicts = no; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 10; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 4; evs.view_forget_timeout = PT24H; gcache.dir = /data/mysql/mysql3308/data/; gcache.freeze_purge_at_seqno = -1; gcache.keep_pages_count = 0; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /data/mysql/mysql3308/data//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gcs.fc_debug = 0; gcs.fc_factor = 1; gcs.fc_limit = 100; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout = PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.recovery = 1; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = PT30S; pc.weight = 1; protonet.backend = asio; protonet.version = 0; repl.causal_read_timeout = PT30S; repl.commit_order = 3; repl.key_format = FLAT8; repl.max_ws_size = 2147483647; repl.proto_max = 8; socket.checksum = 2; socket.recv_buf_size = 212992; 
 21 2018-08-09T11:17:09.547103 01:00 0 [Note] WSREP: GCache history reset: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:0 -> bd5525ab-9a15-11e8-aa0f-4b830c783fc7:28
 22 2018-08-09T11:17:09.551477 01:00 0 [Note] WSREP: Assign initial position for certification: 28, protocol version: -1
 23 2018-08-09T11:17:09.551517 01:00 0 [Note] WSREP: Preparing to initiate SST/IST
 24 2018-08-09T11:17:09.551524 01:00 0 [Note] WSREP: Starting replication
 25 2018-08-09T11:17:09.551542 01:00 0 [Note] WSREP: Setting initial position to bd5525ab-9a15-11e8-aa0f-4b830c783fc7:28
 26 2018-08-09T11:17:09.551666 01:00 0 [Note] WSREP: Using CRC-32C for message checksums.
 27 2018-08-09T11:17:09.551752 01:00 0 [Note] WSREP: gcomm thread scheduling priority set to other:0 
 28 2018-08-09T11:17:09.551861 01:00 0 [Warning] WSREP: Fail to access the file (/data/mysql/mysql3308/data//gvwstate.dat) error (No such file or directory). It is possible if node is booting for first time or re-booting after a graceful shutdown
 29 2018-08-09T11:17:09.551870 01:00 0 [Note] WSREP: Restoring primary-component from disk failed. Either node is booting for first time or re-booting after a graceful shutdown
 30 2018-08-09T11:17:09.552488 01:00 0 [Note] WSREP: GMCast version 0
 31 2018-08-09T11:17:09.553245 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567
 32 2018-08-09T11:17:09.553297 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') multicast: , ttl: 1
 33 2018-08-09T11:17:09.553883 01:00 0 [Note] WSREP: EVS version 0
 34 2018-08-09T11:17:09.554031 01:00 0 [Note] WSREP: gcomm: connecting to group 'pxc_wubx', peer '192.168.1.101:,192.168.1.102:,192.168.1.103:'
 35 2018-08-09T11:17:09.555884 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') connection established to fe2c0efc tcp://192.168.1.103:4567
 36 2018-08-09T11:17:09.555917 01:00 0 [Warning] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') address 'tcp://192.168.1.103:4567' points to own listening address, blacklisting
 37 2018-08-09T11:17:09.557320 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') connection established to 13eae368 tcp://192.168.1.101:4567
 38 2018-08-09T11:17:09.557398 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
 39 2018-08-09T11:17:09.558019 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') connection established to 23fb8f7a tcp://192.168.1.102:4567
 40 2018-08-09T11:17:09.789760 01:00 0 [Note] WSREP: declaring 13eae368 at tcp://192.168.1.101:4567 stable
 41 2018-08-09T11:17:09.789795 01:00 0 [Note] WSREP: declaring 23fb8f7a at tcp://192.168.1.102:4567 stable
 42 2018-08-09T11:17:10.791694 01:00 0 [Note] WSREP: Node 13eae368 state primary
 43 2018-08-09T11:17:10.793677 01:00 0 [Note] WSREP: Current view of cluster as seen by this node
 44 view (view_id(PRIM,13eae368,15)
 45 memb {
 46     13eae368,0
 47     23fb8f7a,0
 48     fe2c0efc,0
 49     }
 50 joined {
 51     }
 52 left {
 53     }
 54 partitioned {
 55     }
 56 )
 57 2018-08-09T11:17:10.793720 01:00 0 [Note] WSREP: Save the discovered primary-component to disk
 58 2018-08-09T11:17:11.055114 01:00 0 [Note] WSREP: gcomm: connected
 59 2018-08-09T11:17:11.055201 01:00 0 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)
 60 2018-08-09T11:17:11.055278 01:00 0 [Note] WSREP: Waiting for SST/IST to complete.
 61 2018-08-09T11:17:11.055571 01:00 0 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 2, memb_num = 3
 62 2018-08-09T11:17:11.055600 01:00 0 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.
 63 2018-08-09T11:17:11.055637 01:00 0 [Note] WSREP: STATE EXCHANGE: sent state msg: fee39480-9bb4-11e8-a6f3-7b3d75fc5b99
 64 2018-08-09T11:17:11.055645 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: fee39480-9bb4-11e8-a6f3-7b3d75fc5b99 from 0 (zlm2)
 65 2018-08-09T11:17:11.055653 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: fee39480-9bb4-11e8-a6f3-7b3d75fc5b99 from 1 (zlm3)
 66 2018-08-09T11:17:11.061999 01:00 0 [Note] WSREP: STATE EXCHANGE: got state msg: fee39480-9bb4-11e8-a6f3-7b3d75fc5b99 from 2 (zlm4)
 67 2018-08-09T11:17:11.062036 01:00 0 [Note] WSREP: Quorum results:
 68     version    = 4,
 69     component  = PRIMARY,
 70     conf_id    = 14,
 71     members    = 3/3 (primary/total),
 72     act_id     = 28,
 73     last_appl. = -1,
 74     protocols  = 0/8/3 (gcs/repl/appl),
 75     group UUID = bd5525ab-9a15-11e8-aa0f-4b830c783fc7
 76 2018-08-09T11:17:11.062046 01:00 0 [Note] WSREP: Flow-control interval: [173, 173]
 77 2018-08-09T11:17:11.062050 01:00 0 [Note] WSREP: Trying to continue unpaused monitor
 78 2018-08-09T11:17:11.062055 01:00 0 [Note] WSREP: Restored state OPEN -> JOINED (28)
 79 2018-08-09T11:17:11.062282 01:00 2 [Note] WSREP: REPL Protocols: 8 (3, 2)
 80 2018-08-09T11:17:11.062308 01:00 2 [Note] WSREP: New cluster view: global state: bd5525ab-9a15-11e8-aa0f-4b830c783fc7:28, view# 15: Primary, number of nodes: 3, my index: 2, protocol version 3
 81 2018-08-09T11:17:11.062314 01:00 2 [Note] WSREP: Setting wsrep_ready to true
 82 2018-08-09T11:17:11.062329 01:00 0 [Note] WSREP: SST complete, seqno: 28
 83 2018-08-09T11:17:11.063803 01:00 0 [Note] WSREP: Member 2.0 (zlm4) synced with group.
 84 2018-08-09T11:17:11.063831 01:00 0 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 28)
 85 2018-08-09T11:17:11.066318 01:00 0 [Warning] InnoDB: Using innodb_locks_unsafe_for_binlog is DEPRECATED. This option may be removed in future releases. Please use READ COMMITTED transaction isolation level instead; Please refer to http://dev.mysql.com/doc/refman/5.7/en/set-transaction.html
 86 2018-08-09T11:17:11.066413 01:00 0 [Note] InnoDB: PUNCH HOLE support available
 87 2018-08-09T11:17:11.066426 01:00 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
 88 2018-08-09T11:17:11.066439 01:00 0 [Note] InnoDB: Uses event mutexes
 89 2018-08-09T11:17:11.066444 01:00 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
 90 2018-08-09T11:17:11.066448 01:00 0 [Note] InnoDB: Compressed tables use zlib 1.2.7
 91 2018-08-09T11:17:11.066453 01:00 0 [Note] InnoDB: Using Linux native AIO
 92 2018-08-09T11:17:11.066471 01:00 0 [Note] InnoDB: Adjusting innodb_buffer_pool_instances from 4 to 1 since innodb_buffer_pool_size is less than 1024 MiB
 93 2018-08-09T11:17:11.067081 01:00 0 [Note] InnoDB: Number of pools: 1
 94 2018-08-09T11:17:11.067235 01:00 0 [Note] InnoDB: Using CPU crc32 instructions
 95 2018-08-09T11:17:11.068926 01:00 0 [Note] InnoDB: Initializing buffer pool, total size = 100M, instances = 1, chunk size = 100M
 96 2018-08-09T11:17:11.071673 01:00 0 [Note] InnoDB: Completed initialization of buffer pool
 97 2018-08-09T11:17:11.074414 01:00 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
 98 2018-08-09T11:17:11.093895 01:00 0 [Note] InnoDB: Crash recovery did not find the parallel doublewrite buffer at /data/mysql/mysql3308/data/xb_doublewrite
 99 2018-08-09T11:17:11.095767 01:00 0 [Note] InnoDB: Highest supported file format is Barracuda.
100 2018-08-09T11:17:11.229162 01:00 0 [Note] InnoDB: Created parallel doublewrite buffer at /data/mysql/mysql3308/data/xb_doublewrite, size 3932160 bytes
101 2018-08-09T11:17:11.369285 01:00 0 [Note] InnoDB: Creating shared tablespace for temporary tables
102 2018-08-09T11:17:11.369369 01:00 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
103 2018-08-09T11:17:11.773899 01:00 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
104 2018-08-09T11:17:11.774714 01:00 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
105 2018-08-09T11:17:11.774734 01:00 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
106 2018-08-09T11:17:11.775107 01:00 0 [Note] InnoDB: Waiting for purge to start
107 2018-08-09T11:17:11.845618 01:00 0 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.7.22-rel22 started; log sequence number 2641145
108 2018-08-09T11:17:11.845884 01:00 0 [Note] Plugin 'FEDERATED' is disabled.
109 2018-08-09T11:17:11.848626 01:00 0 [Note] InnoDB: Loading buffer pool(s) from /data/mysql/mysql3308/data/ib_buffer_pool
110 2018-08-09T11:17:11.882535 01:00 0 [Note] InnoDB: Buffer pool(s) load completed at 180809 11:17:11
111 2018-08-09T11:17:11.907836 01:00 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
112 2018-08-09T11:17:11.907856 01:00 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
113 2018-08-09T11:17:11.908353 01:00 0 [Warning] CA certificate ca.pem is self signed.
114 2018-08-09T11:17:11.908405 01:00 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
115 2018-08-09T11:17:11.908482 01:00 0 [Note] Server hostname (bind-address): '*'; port: 3308
116 2018-08-09T11:17:11.908505 01:00 0 [Note] IPv6 is available.
117 2018-08-09T11:17:11.908513 01:00 0 [Note]   - '::' resolves to '::';
118 2018-08-09T11:17:11.908527 01:00 0 [Note] Server socket created on IP: '::'.
119 2018-08-09T11:17:11.910446 01:00 0 [Warning] 'user' entry 'root@localhost' ignored in --skip-name-resolve mode.
120 2018-08-09T11:17:11.910481 01:00 0 [Warning] 'user' entry 'mysql.session@localhost' ignored in --skip-name-resolve mode.
121 2018-08-09T11:17:11.910489 01:00 0 [Warning] 'user' entry 'mysql.sys@localhost' ignored in --skip-name-resolve mode.
122 2018-08-09T11:17:11.910495 01:00 0 [Warning] 'user' entry 'sst@localhost' ignored in --skip-name-resolve mode.
123 2018-08-09T11:17:11.910512 01:00 0 [Warning] 'db' entry 'performance_schema mysql.session@localhost' ignored in --skip-name-resolve mode.
124 2018-08-09T11:17:11.910516 01:00 0 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.
125 2018-08-09T11:17:11.910522 01:00 0 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.
126 2018-08-09T11:17:11.911126 01:00 0 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.
127 2018-08-09T11:17:11.911142 01:00 0 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.
128 2018-08-09T11:17:11.913579 01:00 0 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=zlm4-relay-bin' to avoid this problem.
129 2018-08-09T11:17:11.925857 01:00 0 [Note] Event Scheduler: Loaded 0 events
130 2018-08-09T11:17:11.926371 01:00 0 [Note] mysqld: ready for connections.
131 Version: '5.7.22-22-29.26-log'  socket: '/tmp/mysql3308.sock'  port: 3308  Percona XtraDB Cluster binary (GPL) 5.7.22-29.26, Revision da86071, wsrep_29.26
132 2018-08-09T11:17:11.930200 01:00 2 [Note] WSREP: Initialized wsrep sidno 2
133 2018-08-09T11:17:11.930223 01:00 2 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 -> 3) (Increment: 1 -> 3)
134 2018-08-09T11:17:11.930233 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
135 2018-08-09T11:17:11.930250 01:00 2 [Note] WSREP: Assign initial position for certification: 28, protocol version: 3
136 2018-08-09T11:17:11.930317 01:00 0 [Note] WSREP: Service thread queue flushed.
137 2018-08-09T11:17:11.930499 01:00 2 [Note] WSREP: Synchronized with group, ready for connections
138 2018-08-09T11:17:11.930505 01:00 2 [Note] WSREP: Setting wsrep_ready to true
139 2018-08-09T11:17:11.930507 01:00 2 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
140 2018-08-09T11:17:13.056460 01:00 0 [Note] WSREP: (fe2c0efc, 'tcp://0.0.0.0:4567') turning message relay requesting off

Change the server-uuid of binlog server to be equal with master.

 

 1 [root@zlm3 18:01:50 /data/mysql/mysql3306]
 2 #cd ../data
 3 
 4 [root@zlm3 18:01:53 /data/mysql/mysql3306/data]
 5 #cat auto.cnf
 6 [auto]
 7 server-uuid=e00ef9f5-6c4b-11e8-8389-080027de0e0e
 8 
 9 [root@zlm3 18:04:11 /data/mysql/mysql3306/data]
10 #vim auto.cnf
11 
12 [root@zlm3 18:04:26 /data/mysql/mysql3306/data]
13 #cat auto.cnf
14 [auto]
15 server-uuid=2a4b3562-2ab6-11e8-be7a-080027de0e0e

**Check the status of PXC and the data of table t1.**

 

 1 (zlm@192.168.1.103 3308)[(none)]>show global status like '%wsrep%';
 2  ---------------------------------- ---------------------------------------------------------- 
 3 | Variable_name                    | Value                                                    |
 4  ---------------------------------- ---------------------------------------------------------- 
 5 | wsrep_local_state_uuid           | bd5525ab-9a15-11e8-aa0f-4b830c783fc7                     |
 6 | wsrep_protocol_version           | 8                                                        |
 7 | wsrep_last_applied               | 28                                                       |
 8 | wsrep_last_committed             | 28                                                       |
 9 | wsrep_replicated                 | 0                                                        |
10 | wsrep_replicated_bytes           | 0                                                        |
11 | wsrep_repl_keys                  | 0                                                        |
12 | wsrep_repl_keys_bytes            | 0                                                        |
13 | wsrep_repl_data_bytes            | 0                                                        |
14 | wsrep_repl_other_bytes           | 0                                                        |
15 | wsrep_received                   | 2                                                        |
16 | wsrep_received_bytes             | 279                                                      |
17 | wsrep_local_commits              | 0                                                        |
18 | wsrep_local_cert_failures        | 0                                                        |
19 | wsrep_local_replays              | 0                                                        |
20 | wsrep_local_send_queue           | 0                                                        |
21 | wsrep_local_send_queue_max       | 1                                                        |
22 | wsrep_local_send_queue_min       | 0                                                        |
23 | wsrep_local_send_queue_avg       | 0.000000                                                 |
24 | wsrep_local_recv_queue           | 0                                                        |
25 | wsrep_local_recv_queue_max       | 1                                                        |
26 | wsrep_local_recv_queue_min       | 0                                                        |
27 | wsrep_local_recv_queue_avg       | 0.000000                                                 |
28 | wsrep_local_cached_downto        | 0                                                        |
29 | wsrep_flow_control_paused_ns     | 0                                                        |
30 | wsrep_flow_control_paused        | 0.000000                                                 |
31 | wsrep_flow_control_sent          | 0                                                        |
32 | wsrep_flow_control_recv          | 0                                                        |
33 | wsrep_flow_control_interval      | [ 173, 173 ]                                             |
34 | wsrep_flow_control_interval_low  | 173                                                      |
35 | wsrep_flow_control_interval_high | 173                                                      |
36 | wsrep_flow_control_status        | OFF                                                      |
37 | wsrep_cert_deps_distance         | 0.000000                                                 |
38 | wsrep_apply_oooe                 | 0.000000                                                 |
39 | wsrep_apply_oool                 | 0.000000                                                 |
40 | wsrep_apply_window               | 0.000000                                                 |
41 | wsrep_commit_oooe                | 0.000000                                                 |
42 | wsrep_commit_oool                | 0.000000                                                 |
43 | wsrep_commit_window              | 0.000000                                                 |
44 | wsrep_local_state                | 4                                                        |
45 | wsrep_local_state_comment        | Synced                                                   |
46 | wsrep_cert_index_size            | 0                                                        |
47 | wsrep_cert_bucket_count          | 22                                                       |
48 | wsrep_gcache_pool_size           | 1320                                                     |
49 | wsrep_causal_reads               | 0                                                        |
50 | wsrep_cert_interval              | 0.000000                                                 |
51 | wsrep_ist_receive_status         |                                                          |
52 | wsrep_ist_receive_seqno_start    | 0                                                        |
53 | wsrep_ist_receive_seqno_current  | 0                                                        |
54 | wsrep_ist_receive_seqno_end      | 0                                                        |
55 | wsrep_incoming_addresses         | 192.168.1.101:3308,192.168.1.102:3308,192.168.1.103:3308 |
56 | wsrep_desync_count               | 0                                                        |
57 | wsrep_evs_delayed                |                                                          |
58 | wsrep_evs_evict_list             |                                                          |
59 | wsrep_evs_repl_latency           | 0/0/0/0/0                                                |
60 | wsrep_evs_state                  | OPERATIONAL                                              |
61 | wsrep_gcomm_uuid                 | fe2c0efc-9bb4-11e8-82b0-6b01a1a0030d                     |
62 | wsrep_cluster_conf_id            | 15                                                       |
63 | wsrep_cluster_size               | 3                                                        | //The size of PXC turned out to be three again.
64 | wsrep_cluster_state_uuid         | bd5525ab-9a15-11e8-aa0f-4b830c783fc7                     |
65 | wsrep_cluster_status             | Primary                                                  |
66 | wsrep_connected                  | ON                                                       |
67 | wsrep_local_bf_aborts            | 0                                                        |
68 | wsrep_local_index                | 2                                                        |
69 | wsrep_provider_name              | Galera                                                   |
70 | wsrep_provider_vendor            | Codership Oy <info@codership.com>                        |
71 | wsrep_provider_version           | 3.26(r)                                                  |
72 | wsrep_ready                      | ON                                                       |
73  ---------------------------------- ---------------------------------------------------------- 
74 68 rows in set (0.00 sec)
75 
76 (zlm@192.168.1.103 3308)[(none)]>select * from zlm.t1;
77  ---- ------------ 
78 | id | name       |
79  ---- ------------ 
80 |  1 | MySQL      |
81 |  2 | Oracle     |
82 |  3 | PostgreSQL |
83 |  4 | Redis      |
84  ---- ------------ 
85 4 rows in set (0.01 sec)
86 
87 //The fourth record of "Redis" has been shown correctly on node zlm4.

Execute "change master to ... " on zlm2.

 

1 zlm@192.168.56.101:3306 [sysbench]>change master to 
2     -> master_host='192.168.56.102',
3     -> master_port=3306,
4     -> master_user='repl',
5     -> master_password='repl4slave',
6     -> master_auto_position=1;
7 Query OK, 0 rows affected, 2 warnings (0.01 sec)

**Reset slave replication information on node zlm4.(optional)**

 

 1 (zlm@192.168.1.103 3308)[(none)]>show slave statusG
 2 *************************** 1. row ***************************
 3                Slave_IO_State: 
 4                   Master_Host: 192.168.1.102
 5                   Master_User: repl
 6                   Master_Port: 3308
 7                 Connect_Retry: 60
 8               Master_Log_File: mysql-bin.000023
 9           Read_Master_Log_Pos: 1718
10                Relay_Log_File: zlm4-relay-bin.000003
11                 Relay_Log_Pos: 775
12         Relay_Master_Log_File: mysql-bin.000023
13              Slave_IO_Running: No
14             Slave_SQL_Running: No
15               Replicate_Do_DB: 
16           Replicate_Ignore_DB: 
17            Replicate_Do_Table: 
18        Replicate_Ignore_Table: 
19       Replicate_Wild_Do_Table: 
20   Replicate_Wild_Ignore_Table: 
21                    Last_Errno: 0
22                    Last_Error: 
23                  Skip_Counter: 0
24           Exec_Master_Log_Pos: 1718
25               Relay_Log_Space: 2831
26               Until_Condition: None
27                Until_Log_File: 
28                 Until_Log_Pos: 0
29            Master_SSL_Allowed: No
30            Master_SSL_CA_File: 
31            Master_SSL_CA_Path: 
32               Master_SSL_Cert: 
33             Master_SSL_Cipher: 
34                Master_SSL_Key: 
35         Seconds_Behind_Master: NULL
36 Master_SSL_Verify_Server_Cert: No
37                 Last_IO_Errno: 0
38                 Last_IO_Error: 
39                Last_SQL_Errno: 0
40                Last_SQL_Error: 
41   Replicate_Ignore_Server_Ids: 
42              Master_Server_Id: 0
43                   Master_UUID: 3ba41aa7-9b79-11e8-ad75-080027de0e0e
44              Master_Info_File: /data/mysql/mysql3308/data/master.info
45                     SQL_Delay: 0
46           SQL_Remaining_Delay: NULL
47       Slave_SQL_Running_State: 
48            Master_Retry_Count: 86400
49                   Master_Bind: 
50       Last_IO_Error_Timestamp: 
51      Last_SQL_Error_Timestamp: 
52                Master_SSL_Crl: 
53            Master_SSL_Crlpath: 
54            Retrieved_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:20-25
55             Executed_Gtid_Set: 42aada54-65ea-ee17-55f0-b47cf387c038:1-25
56                 Auto_Position: 1
57          Replicate_Rewrite_DB: 
58                  Channel_Name: 
59            Master_TLS_Version: 
60 1 row in set (0.00 sec)
61 
62 (zlm@192.168.1.103 3308)[(none)]>reset slave all;
63 Query OK, 0 rows affected (0.03 sec)
64 
65 (zlm@192.168.1.103 3308)[(none)]>show slave statusG
66 Empty set (0.00 sec)
67 
68 //This step is merely used to make the environment clean and tidy.It's not necessary.

Start IO_Thread on zlm2.

 

 1 [root@zlm2 17:12:39 /data/backup/2018-07-29_16-32-33]
 2 #cat xtrabackup_binlog_info
 3 mysql-bin.000100    476    2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694
 4 
 5 zlm@192.168.56.101:3306 [sysbench]>reset master;
 6 Query OK, 0 rows affected (0.00 sec)
 7 
 8 zlm@192.168.56.101:3306 [sysbench]>set @@global.gtid_purged='2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694';
 9 Query OK, 0 rows affected (0.00 sec)
10 
11 zlm@192.168.56.101:3306 [sysbench]>start slave io_thread;
12 Query OK, 0 rows affected (0.00 sec)
13 
14 zlm@192.168.56.101:3306 [sysbench]>show slave statusG
15 *************************** 1. row ***************************
16                Slave_IO_State: 
17                   Master_Host: 192.168.56.102
18                   Master_User: repl
19                   Master_Port: 3306
20                 Connect_Retry: 60
21               Master_Log_File: 
22           Read_Master_Log_Pos: 4
23                Relay_Log_File: relay-bin.000001
24                 Relay_Log_Pos: 4
25         Relay_Master_Log_File: 
26              Slave_IO_Running: No
27             Slave_SQL_Running: No
28               Replicate_Do_DB: 
29           Replicate_Ignore_DB: 
30            Replicate_Do_Table: 
31        Replicate_Ignore_Table: 
32       Replicate_Wild_Do_Table: 
33   Replicate_Wild_Ignore_Table: 
34                    Last_Errno: 0
35                    Last_Error: 
36                  Skip_Counter: 0
37           Exec_Master_Log_Pos: 0
38               Relay_Log_Space: 154
39               Until_Condition: None
40                Until_Log_File: 
41                 Until_Log_Pos: 0
42            Master_SSL_Allowed: No
43            Master_SSL_CA_File: 
44            Master_SSL_CA_Path: 
45               Master_SSL_Cert: 
46             Master_SSL_Cipher: 
47                Master_SSL_Key: 
48         Seconds_Behind_Master: NULL
49 Master_SSL_Verify_Server_Cert: No
50                 Last_IO_Errno: 1236
51                 Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.'
52                Last_SQL_Errno: 0
53                Last_SQL_Error: 
54   Replicate_Ignore_Server_Ids: 
55              Master_Server_Id: 1023306
56                   Master_UUID: e00ef9f5-6c4b-11e8-8389-080027de0e0e
57              Master_Info_File: /data/mysql/mysql3306/data/master.info
58                     SQL_Delay: 0
59           SQL_Remaining_Delay: NULL
60       Slave_SQL_Running_State: 
61            Master_Retry_Count: 86400
62                   Master_Bind: 
63       Last_IO_Error_Timestamp: 180729 18:00:08
64      Last_SQL_Error_Timestamp: 
65                Master_SSL_Crl: 
66            Master_SSL_Crlpath: 
67            Retrieved_Gtid_Set: 
68             Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694
69                 Auto_Position: 1
70          Replicate_Rewrite_DB: 
71                  Channel_Name: 
72            Master_TLS_Version: 
73 1 row in set (0.00 sec)

 

    I was stucked here.Slave IO_Thread could not be started with 1236,although I had replaced the server-uuid and set the variable of gtid_purged.Only if the slave get binlog which contains the incremental data and start the slave SQL_Thread.We can get back our dropped table together with the modification on it.

 

Supplemented on July 31:

 

    The previous fault of 1236 was due to the wrong configuration of variable "gtid_purged".There were two individual gtids generated by the other masters with different uuid as bellow:

 

图片 1

 

 

    Therefore,the configuration command should be executed like this:

 

1 set @@global.gtid_purged='27af30ca-6800-11e8-ad7e-080027de0e0e:1,
2 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694,
3 e00ef9f5-6c4b-11e8-8389-080027de0e0e:1';

 

    not merely set it like this:

 

1 set @@global.gtid_purged='2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694';

 

    Eventually,In order to make the gtid more clear,I executed "reset master" on binlog server(zlm3) and then copyed those necessary binlogs which were transfered from original master.Further more,I changed back the uuid of zlm3.Because I found that there's no need to change it at all.

    The new procedure of demonstration was shown below:

 

  1 zlm@192.168.56.101:3306 [(none)]>set @@global.gtid_purged='2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694';
  2 Query OK, 0 rows affected (0.00 sec)
  3 
  4 zlm@192.168.56.101:3306 [(none)]>change master to master_host='192.168.56.102',master_port=3306,master_user='repl',master_password='repl4slave',master_auto_position=1;
  5 Query OK, 0 rows affected, 2 warnings (0.01 sec)
  6 
  7 zlm@192.168.56.101:3306 [(none)]>start slave io_thread;
  8 Query OK, 0 rows affected (0.00 sec)
  9 
 10 zlm@192.168.56.101:3306 [(none)]>show slave statusG
 11 *************************** 1. row ***************************
 12                Slave_IO_State: Waiting for master to send event
 13                   Master_Host: 192.168.56.102
 14                   Master_User: repl
 15                   Master_Port: 3306
 16                 Connect_Retry: 60
 17               Master_Log_File: mysql-bin.000105
 18           Read_Master_Log_Pos: 194
 19                Relay_Log_File: relay-bin.000001
 20                 Relay_Log_Pos: 4
 21         Relay_Master_Log_File: 
 22              Slave_IO_Running: Yes
 23             Slave_SQL_Running: No
 24               Replicate_Do_DB: 
 25           Replicate_Ignore_DB: 
 26            Replicate_Do_Table: 
 27        Replicate_Ignore_Table: 
 28       Replicate_Wild_Do_Table: 
 29   Replicate_Wild_Ignore_Table: 
 30                    Last_Errno: 0
 31                    Last_Error: 
 32                  Skip_Counter: 0
 33           Exec_Master_Log_Pos: 0
 34               Relay_Log_Space: 3360
 35               Until_Condition: None
 36                Until_Log_File: 
 37                 Until_Log_Pos: 0
 38            Master_SSL_Allowed: No
 39            Master_SSL_CA_File: 
 40            Master_SSL_CA_Path: 
 41               Master_SSL_Cert: 
 42             Master_SSL_Cipher: 
 43                Master_SSL_Key: 
 44         Seconds_Behind_Master: NULL
 45 Master_SSL_Verify_Server_Cert: No
 46                 Last_IO_Errno: 0
 47                 Last_IO_Error: 
 48                Last_SQL_Errno: 0
 49                Last_SQL_Error: 
 50   Replicate_Ignore_Server_Ids: 
 51              Master_Server_Id: 1023306
 52                   Master_UUID: e00ef9f5-6c4b-11e8-8389-080027de0e0e //I changed back the uuid of zlm3 to its previous value.
 53              Master_Info_File: /data/mysql/mysql3306/data/master.info
 54                     SQL_Delay: 0
 55           SQL_Remaining_Delay: NULL
 56       Slave_SQL_Running_State: 
 57            Master_Retry_Count: 86400
 58                   Master_Bind: 
 59       Last_IO_Error_Timestamp: 
 60      Last_SQL_Error_Timestamp: 
 61                Master_SSL_Crl: 
 62            Master_SSL_Crlpath: 
 63            Retrieved_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:12715695-12715696 //New gtid was received.
 64             Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715694
 65                 Auto_Position: 1
 66          Replicate_Rewrite_DB: 
 67                  Channel_Name: 
 68            Master_TLS_Version: 
 69 1 row in set (0.00 sec)
 70 
 71 zlm@192.168.56.101:3306 [sysbench]>start slave sql_thread until sql_before_gtids='2a4b3562-2ab6-11e8-be7a-080027de0e0e:12715696';
 72 Query OK, 0 rows affected (0.00 sec)
 73 
 74 zlm@192.168.56.101:3306 [sysbench]>show slave statusG
 75 *************************** 1. row ***************************
 76                Slave_IO_State: Waiting for master to send event
 77                   Master_Host: 192.168.56.102
 78                   Master_User: repl
 79                   Master_Port: 3306
 80                 Connect_Retry: 60
 81               Master_Log_File: mysql-bin.000105
 82           Read_Master_Log_Pos: 194
 83                Relay_Log_File: relay-bin.000002
 84                 Relay_Log_Pos: 696
 85         Relay_Master_Log_File: mysql-bin.000100
 86              Slave_IO_Running: Yes
 87             Slave_SQL_Running: No
 88               Replicate_Do_DB: 
 89           Replicate_Ignore_DB: 
 90            Replicate_Do_Table: 
 91        Replicate_Ignore_Table: 
 92       Replicate_Wild_Do_Table: 
 93   Replicate_Wild_Ignore_Table: 
 94                    Last_Errno: 0
 95                    Last_Error: 
 96                  Skip_Counter: 0
 97           Exec_Master_Log_Pos: 758
 98               Relay_Log_Space: 3360
 99               Until_Condition: SQL_BEFORE_GTIDS
100                Until_Log_File: 
101                 Until_Log_Pos: 0
102            Master_SSL_Allowed: No
103            Master_SSL_CA_File: 
104            Master_SSL_CA_Path: 
105               Master_SSL_Cert: 
106             Master_SSL_Cipher: 
107                Master_SSL_Key: 
108         Seconds_Behind_Master: NULL
109 Master_SSL_Verify_Server_Cert: No
110                 Last_IO_Errno: 0
111                 Last_IO_Error: 
112                Last_SQL_Errno: 0
113                Last_SQL_Error: 
114   Replicate_Ignore_Server_Ids: 
115              Master_Server_Id: 1023306
116                   Master_UUID: e00ef9f5-6c4b-11e8-8389-080027de0e0e
117              Master_Info_File: /data/mysql/mysql3306/data/master.info
118                     SQL_Delay: 0
119           SQL_Remaining_Delay: NULL
120       Slave_SQL_Running_State: 
121            Master_Retry_Count: 86400
122                   Master_Bind: 
123       Last_IO_Error_Timestamp: 
124      Last_SQL_Error_Timestamp: 
125                Master_SSL_Crl: 
126            Master_SSL_Crlpath: 
127            Retrieved_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:12715695-12715696
128             Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715695
129                 Auto_Position: 1
130          Replicate_Rewrite_DB: 
131                  Channel_Name: 
132            Master_TLS_Version: 
133 1 row in set (0.00 sec)
134 
135 zlm@192.168.56.101:3306 [sysbench]>select * from sbtest6;
136  ---- --- --- ----- 
137 | id | k | c | pad |
138  ---- --- --- ----- 
139 |  1 | 1 | a | b   |
140 |  2 | 2 | c | d   |
141  ---- --- --- ----- 
142 2 rows in set (0.00 sec)
143 
144 //The incremental data in "sbtest6" had been come again.It was okay this time.

  

Summary

  • Binlog server act as a master in this experiment.It can prevent data loss such as miss opeartion of dropping tables whenever the master crashes.
  • We can implement as many binlog servers as possible to continuously acquire the binlogs on different masters.
  • If the only purpose is to get back the dropping data,replication filter of "replicate_do_table" is not necessary.
  • The modification of "sever-uuid" is also neglectable operation.Each gtid contains a differten uuid is completely acceptable.It won't influence our replication except for a little bit complex in output.

 

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