利用mysql全備 +binlog server恢復方法之偽裝master
單實例試驗
一、試驗環境
10.72.7.40
實例 mysql3306為要恢復的對象，mysql3306的全備+binlog server（目錄/data/mysql/mysql3306/backup）
實例mysql3307為偽裝master
實例mysql3308為偽裝master的slave，在其上恢復數據
1、mysql3306全備
innobackupex --defaults-file=/data/mysql/mysql3306/mysql3306.cnf -S /tmp/mysql3306.sock -uroot -phch123 /root/backup
2、mysql3306的binlog server
root@localhost:mysql3306.sock [zst1]>show binary logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000004 | 234 | | mysql-bin.000005 | 234 | +------------------+-----------+ 2 rows in set (0.00 sec) cd /data/mysql/mysql3306/backup [root@bogon backup]# nohup mysqlbinlog --raw --read-from-remote-server --host=10.72.7.40 --port=3306 --user=root --password=hch123 --stop-never mysql-bin.000004 &
3、查看3306的數據
root@localhost:mysql3306.sock [zst1]>select count(*) from tb1; +----------+ | count(*) | +----------+ | 35 | +----------+ 1 row in set (0.00 sec) 模擬數據寫入 root@localhost:mysql3306.sock [zst1]>insert into tb1(c1, c2) select user,host from mysql.user; Query OK, 9 rows affected (0.09 sec) Records: 9 Duplicates: 0 Warnings: 0 root@localhost:mysql3306.sock [zst1]>insert into tb1(c1, c2) select user,host from mysql.user; Query OK, 9 rows affected (0.14 sec) Records: 9 Duplicates: 0 Warnings: 0 root@localhost:mysql3306.sock [zst1]>select count(*) from tb1; +----------+ | count(*) | +----------+ | 53 | +----------+ 1 row in set (0.00 sec) root@localhost:mysql3306.sock [zst1]>select @@server_uuid; +--------------------------------------+ | @@server_uuid | +--------------------------------------+ | d20b918a-96c9-11e8-aae4-000c2969aede | +--------------------------------------+ 1 row in set (0.00 sec)
查看目前binlog位置
root@localhost:mysql3306.sock [zst1]>show master status; +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------+ | mysql-bin.000005 | 1248 | | | 959b9f31-75ef-11e8-97de-000c2969aede:1-61970, d20b918a-96c9-11e8-aae4-000c2969aede:1-17 | +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
模擬誤操作
root@localhost:mysql3306.sock [zst1]>truncate table tb1; Query OK, 0 rows affected (0.08 sec) root@localhost:mysql3306.sock [zst1]>select * from tb1; Empty set (0.00 sec) root@localhost:mysql3306.sock [zst1]>select count(*) from tb1; +----------+ | count(*) | +----------+ | 0 | +----------+ 1 row in set (0.00 sec)
繼續寫入數據
root@localhost:mysql3306.sock [zst1]>insert into tb1(c1, c2) select user,host from mysql.user; Query OK, 9 rows affected (0.09 sec) Records: 9 Duplicates: 0 Warnings: 0 root@localhost:mysql3306.sock [zst1]>select count(*) from tb1; +----------+ | count(*) | +----------+ | 9 | +----------+ 1 row in set (0.00 sec)
刷新binlog
root@localhost:mysql3306.sock [zst1]>flush logs; Query OK, 0 rows affected (0.11 sec)
查看binlog信息
root@localhost:mysql3306.sock [zst1]>show binary logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000004 | 234 | | mysql-bin.000005 | 1952 | | mysql-bin.000006 | 234 | +------------------+-----------+ 3 rows in set (0.00 sec) root@localhost:mysql3306.sock [zst1]>show master status; +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------+ | mysql-bin.000006 | 234 | | | 959b9f31-75ef-11e8-97de-000c2969aede:1-61970, d20b918a-96c9-11e8-aae4-000c2969aede:1-19 | +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
二、查看恢復位置
解析binlog
[root@bogon data]# mysqlbinlog -v --base64-output=decode-rows mysql-bin.000005 > 5.sql
恢復的位置為 mysql-bin.000005 1248，d20b918a-96c9-11e8-aae4-000c2969aede:18
三、創建偽裝master 3308
1、初始化實例3308、啟動並修改密碼，省略……
2、查看3308 uuid信息
[root@bogon backup]# mysql -S /tmp/mysql3308.sock -uroot -phch123 查看uuid root@localhost:mysql3308.sock [(none)]>select @@server_uuid; +--------------------------------------+ | @@server_uuid | +--------------------------------------+ | 8db05acd-a0f1-11e8-ad63-000c2969aede | +--------------------------------------+ 1 row in set (0.00 sec) root@localhost:mysql3308.sock [(none)]>show binary logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000001 | 177 | | mysql-bin.000002 | 845 | +------------------+-----------+ 2 rows in set (0.00 sec)
3、將3306的binlog復制到3308上
先關閉3308實例
root@localhost:mysql3308.sock [(none)]>shutdown; Query OK, 0 rows affected (0.00 sec) root@localhost:mysql3308.sock [(none)]>exit
刪除3308的binlog
[root@bogon logs]# pwd /data/mysql/mysql3308/logs [root@bogon logs]# ll -thr total 12K -rw-r-----. 1 mysql mysql 177 Aug 15 21:13 mysql-bin.000001 -rw-r-----. 1 mysql mysql 88 Aug 15 21:16 mysql-bin.index -rw-r-----. 1 mysql mysql 868 Aug 15 21:50 mysql-bin.000002 [root@bogon logs]# cat mysql-bin.index /data/mysql/mysql3308/logs/mysql-bin.000001 /data/mysql/mysql3308/logs/mysql-bin.000002
拷貝3306binlog server的binlog至3308
[root@bogon logs]# cp /data/mysql/mysql3306/backup/* ./ [root@bogon logs]# ll -thr total 16K -rw-------. 1 root root 279 Aug 15 21:53 nohup.out -rw-r-----. 1 root root 234 Aug 15 21:53 mysql-bin.000006 -rw-r-----. 1 root root 2.0K Aug 15 21:53 mysql-bin.000005 -rw-r-----. 1 root root 234 Aug 15 21:53 mysql-bin.000004
生成mysql-bin.index
[root@bogon logs]# ls /data/mysql/mysql3308/logs/mysql-bin.00000* > mysql-bin.index [root@bogon logs]# cat mysql-bin.index /data/mysql/mysql3308/logs/mysql-bin.000004 /data/mysql/mysql3308/logs/mysql-bin.000005 /data/mysql/mysql3308/logs/mysql-bin.000006 [root@bogon logs]# ll -thr total 20K -rw-------. 1 root root 279 Aug 15 21:53 nohup.out -rw-r-----. 1 root root 234 Aug 15 21:53 mysql-bin.000006 -rw-r-----. 1 root root 2.0K Aug 15 21:53 mysql-bin.000005 -rw-r-----. 1 root root 234 Aug 15 21:53 mysql-bin.000004 -rw-r--r--. 1 root root 258 Aug 15 21:55 mysql-bin.index [root@bogon logs]# chown mysql. * [root@bogon logs]# ll -thr total 20K -rw-------. 1 mysql mysql 279 Aug 15 21:53 nohup.out -rw-r-----. 1 mysql mysql 234 Aug 15 21:53 mysql-bin.000006 -rw-r-----. 1 mysql mysql 2.0K Aug 15 21:53 mysql-bin.000005 -rw-r-----. 1 mysql mysql 234 Aug 15 21:53 mysql-bin.000004 -rw-r--r--. 1 mysql mysql 258 Aug 15 21:55 mysql-bin.index [root@bogon logs]# rm -rf nohup.out
啟動3308實例
[root@bogon backup]# /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3308/mysql3308.cnf & [root@bogon backup]# mysql -S /tmp/mysql3308.sock -uroot -phch123 root@localhost:mysql3308.sock [(none)]>select @@server_uuid; +--------------------------------------+ | @@server_uuid | +--------------------------------------+ | 8db05acd-a0f1-11e8-ad63-000c2969aede | +--------------------------------------+ 1 row in set (0.00 sec)
可以看到binlog已經識別出來了
root@localhost:mysql3308.sock [(none)]>show binary logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000004 | 234 | | mysql-bin.000005 | 1952 | | mysql-bin.000006 | 234 | | mysql-bin.000007 | 257 | | mysql-bin.000008 | 234 | +------------------+-----------+ 5 rows in set (0.00 sec) root@localhost:mysql3308.sock [(none)]>show master status; +------------------+----------+--------------+------------------+---------------------------------------------------------------------------------------------------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+---------------------------------------------------------------------------------------------------------------------------------------+ | mysql-bin.000008 | 234 | | | 8db05acd-a0f1-11e8-ad63-000c2969aede:1-3, 959b9f31-75ef-11e8-97de-000c2969aede:61965-61970, d20b918a-96c9-11e8-aae4-000c2969aede:1-19 | +------------------+----------+--------------+------------------+---------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
可以看到Executed_Gtid_Set中多了8db05acd-a0f1-11e8-ad63-000c2969aede:1-3,需要在slave 中gtid purged掉,否則會報1236錯誤(因為剛才新建賬號產生的log已經被刪除了)
四、創建偽裝master3308的slave3309
1、用3306的全備恢復
[root@bogon 2018-08-15_21-23-26]# pwd /root/backup/2018-08-15_21-23-26 [root@bogon 2018-08-15_21-23-26]# innobackupex --apply-log /root/backup/2018-08-15_21-23-26
關閉3309
[root@bogon 2018-08-15_21-23-26]#mysql -S /tmp/mysql3309.sock -uroot -p root@localhost:mysql3309.sock [(none)]>shutdown;
先備份3309的datadir，並清除里面的文件
[root@bogon data]# pwd /data/mysql/mysql3309/data [root@bogon mysql3309]# cp -a data/ data_bak [root@bogon mysql3309]# cd data [root@bogon data]# rm -rf *
將還原文件拷貝過來
[root@bogon data]# cp -r /root/backup/2018-08-15_21-23-26/* /data/mysql/mysql3309/data/
修改權限
[root@bogon data]# chown -R mysql. * [root@bogon data]# ll -thr total 421M -rw-r-----. 1 mysql mysql 537 Aug 15 22:17 backup-my.cnf drwxr-x---. 2 mysql mysql 86 Aug 15 22:17 hch drwxr-x---. 2 mysql mysql 50 Aug 15 22:17 hch1 -rw-r-----. 1 mysql mysql 553 Aug 15 22:17 ib_buffer_pool -rw-r-----. 1 mysql mysql 100M Aug 15 22:17 ibdata1 -rw-r-----. 1 mysql mysql 100M Aug 15 22:17 ib_logfile0 -rw-r-----. 1 mysql mysql 100M Aug 15 22:17 ib_logfile1 -rw-r-----. 1 mysql mysql 100M Aug 15 22:17 ib_logfile2 -rw-r-----. 1 mysql mysql 12M Aug 15 22:17 ibtmp1 drwxr-x---. 2 mysql mysql 4.0K Aug 15 22:17 mysql drwxr-x---. 2 mysql mysql 8.0K Aug 15 22:17 performance_schema drwxr-x---. 2 mysql mysql 8.0K Aug 15 22:17 sys drwxr-x---. 2 mysql mysql 52 Aug 15 22:17 test drwxr-x---. 2 mysql mysql 48 Aug 15 22:17 userdb drwxr-x---. 2 mysql mysql 4.0K Aug 15 22:17 wubx -rw-r--r--. 1 mysql mysql 22 Aug 15 22:17 xtrabackup_binlog_pos_innodb -rw-r-----. 1 mysql mysql 109 Aug 15 22:17 xtrabackup_binlog_info -rw-r-----. 1 mysql mysql 651 Aug 15 22:17 xtrabackup_info -rw-r-----. 1 mysql mysql 117 Aug 15 22:17 xtrabackup_checkpoints -rw-r-----. 1 mysql mysql 8.0M Aug 15 22:17 xtrabackup_logfile -rw-r--r--. 1 mysql mysql 1 Aug 15 22:17 xtrabackup_master_key_id drwxr-x---. 2 mysql mysql 192 Aug 15 22:17 zst drwxr-x---. 2 mysql mysql 50 Aug 15 22:17 zst1
查看備份的binlog位置為959b9f31-75ef-11e8-97de-000c2969aede:1-61970,d20b918a-96c9-11e8-aae4-000c2969aede:1-15
啟動3309實例
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3309/mysql3309.cnf & [root@bogon data]# mysql -S /tmp/mysql3309.sock -uroot -phch123 root@localhost:mysql3309.sock [(none)]>show master status; +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------------------------------------------------+ | mysql-bin.000003 | 194 | | | 61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2, 959b9f31-75ef-11e8-97de-000c2969aede:1-61970, d20b918a-96c9-11e8-aae4-000c2969aede:1-15 | +------------------+----------+--------------+------------------+-----------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
發現又多了個61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2，不太清楚是哪個gtid，查看3307的uuid也不是這個，為了影響實驗效果，下面的gtid_purged也把這個加入進去了
查看數據
root@localhost:mysql3309.sock [(none)]>select count(*) from zst1.tb1; +----------+ | count(*) | +----------+ | 35 | +----------+ 1 row in set (0.00 sec)
設置gtid_purged，別忘記加入3308改密碼的gtid，並且加入了61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2
root@localhost:mysql3309.sock [(none)]>reset master; Query OK, 0 rows affected (0.03 sec) root@localhost:mysql3309.sock [(none)]>set global gtid_purged='959b9f31-75ef-11e8-97de-000c2969aede:1-61970,d20b918a-96c9-11e8-aae4-000c2969aede:1-15,8db05acd-a0f1-11e8-ad63-000c2969aede:1-3,61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2'; Query OK, 0 rows affected (0.00 sec) root@localhost:mysql3309.sock [(none)]>change master to master_host='10.72.7.40', master_port=3308, master_user='hch', master_password='hch123', master_auto_position=1; Query OK, 0 rows affected, 2 warnings (0.02 sec) root@localhost:mysql3309.sock [(none)]>start slave sql_thread until sql_before_gtids='d20b918a-96c9-11e8-aae4-000c2969aede:18'; Query OK, 0 rows affected (0.01 sec) root@localhost:mysql3309.sock [(none)]>show slave status\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 10.72.7.40 Master_User: hch Master_Port: 3308 Connect_Retry: 60 Master_Log_File: Read_Master_Log_Pos: 4 Relay_Log_File: bogon-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: Slave_IO_Running: No Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 0 Relay_Log_Space: 154 Until_Condition: SQL_BEFORE_GTIDS Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 0 Master_UUID: Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: 61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2, 8db05acd-a0f1-11e8-ad63-000c2969aede:1-3, 959b9f31-75ef-11e8-97de-000c2969aede:1-61970, d20b918a-96c9-11e8-aae4-000c2969aede:1-15 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified root@localhost:mysql3309.sock [(none)]>select count(*) from zst1.tb1; +----------+ | count(*) | +----------+ | 35 | +----------+ 1 row in set (0.01 sec) root@localhost:mysql3309.sock [(none)]>start slave io_thread; Query OK, 0 rows affected (0.00 sec) root@localhost:mysql3309.sock [(none)]>select count(*) from zst1.tb1; +----------+ | count(*) | +----------+ | 53 | +----------+ 1 row in set (0.00 sec)
發現此時數據已經恢復了。
問題
報錯ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository
原因：設置gtid_purged，沒有加入了61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2
root@localhost:mysql3309.sock [(none)]>set global gtid_purged='959b9f31-75ef-11e8-97de-000c2969aede:1-61970,d20b918a-96c9-11e8-aae4-000c2969aede:1-15,8db05acd-a0f1-11e8-ad63-000c2969aede:1-3';
Query OK, 0 rows affected (0.02 sec)
root@localhost:mysql3309.sock [(none)]>change master to master_host='10.72.7.40', master_port=3308, master_user='hch', master_password='hch123', master_auto_position=1;
Query OK, 0 rows affected, 2 warnings (0.09 sec)
root@localhost:mysql3309.sock [(none)]>start slave io_thread;
ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository
root@localhost:mysql3309.sock [(none)]>show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 10.72.7.40
Master_User: hch
Master_Port: 3308
Connect_Retry: 60
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: bogon-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1872
Last_Error: Slave failed to initialize relay log info structure from the repository
Skip_Counter: 0
Exec_Master_Log_Pos: 0
Relay_Log_Space: 154
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 1872
Last_SQL_Error: Slave failed to initialize relay log info structure from the repository
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID:
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 180815 22:43:54
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 8db05acd-a0f1-11e8-ad63-000c2969aede:1-3,
959b9f31-75ef-11e8-97de-000c2969aede:1-61970,
d20b918a-96c9-11e8-aae4-000c2969aede:1-15
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
解決方法：
1、設置gtid_purged加入了61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2
2、reset slave all，重新設置主從
reset slave all
change master to master_host='10.72.7.40', master_port=3308, master_user='hch', master_password='hch123', master_auto_position=1;
start slave sql_thread until sql_before_gtids='d20b918a-96c9-11e8-aae4-000c2969aede:18';
具體操作過程如下：
root@localhost:mysql3309.sock [(none)]>reset master;
Query OK, 0 rows affected (0.03 sec)
root@localhost:mysql3309.sock [(none)]>set global gtid_purged='959b9f31-75ef-11e8-97de-000c2969aede:1-61970,d20b918a-96c9-11e8-aae4-000c2969aede:1-15,8db05acd-a0f1-11e8-ad63-000c2969aede:1-3,61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2';
Query OK, 0 rows affected (0.00 sec)
root@localhost:mysql3309.sock [(none)]>show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 10.72.7.40
Master_User: hch
Master_Port: 3308
Connect_Retry: 60
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: bogon-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1872
Last_Error: Slave failed to initialize relay log info structure from the repository
Skip_Counter: 0
Exec_Master_Log_Pos: 0
Relay_Log_Space: 154
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 1872
Last_SQL_Error: Slave failed to initialize relay log info structure from the repository
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID:
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 180815 22:43:54
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2,
8db05acd-a0f1-11e8-ad63-000c2969aede:1-3,
959b9f31-75ef-11e8-97de-000c2969aede:1-61970,
d20b918a-96c9-11e8-aae4-000c2969aede:1-15
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
root@localhost:mysql3309.sock [(none)]>stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)
root@localhost:mysql3309.sock [(none)]>start slave sql_thread until sql_before_gtids='d20b918a-96c9-11e8-aae4-000c2969aede:18';
ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository
root@localhost:mysql3309.sock [(none)]>reset slave all;
Query OK, 0 rows affected (0.03 sec)
root@localhost:mysql3309.sock [(none)]>change master to master_host='10.72.7.40', master_port=3308, master_user='hch', master_password='hch123', master_auto_position=1;
Query OK, 0 rows affected, 2 warnings (0.02 sec)
root@localhost:mysql3309.sock [(none)]>start slave sql_thread until sql_before_gtids='d20b918a-96c9-11e8-aae4-000c2969aede:18';
Query OK, 0 rows affected (0.01 sec)
root@localhost:mysql3309.sock [(none)]>show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 10.72.7.40
Master_User: hch
Master_Port: 3308
Connect_Retry: 60
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: bogon-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 0
Relay_Log_Space: 154
Until_Condition: SQL_BEFORE_GTIDS
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID:
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 61cfd125-a0f2-11e8-b8bc-000c2969aede:1-2,
8db05acd-a0f1-11e8-ad63-000c2969aede:1-3,
959b9f31-75ef-11e8-97de-000c2969aede:1-61970,
d20b918a-96c9-11e8-aae4-000c2969aede:1-15
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
root@localhost:mysql3309.sock [(none)]>select count(*) from zst1.tb1;
+----------+
| count(*) |
+----------+
| 35 |
+----------+
1 row in set (0.01 sec)
root@localhost:mysql3309.sock [(none)]>start slave io_thread;
Query OK, 0 rows affected (0.00 sec)
root@localhost:mysql3309.sock [(none)]>select count(*) from zst1.tb1;
+----------+
| count(*) |
+----------+
| 53 |
+----------+
1 row in set (0.00 sec)
參考
利用binlogserver恢復單表實驗【轉】 - paul_hch - 博客園 https://www.cnblogs.com/paul8339/p/9378269.html
通過全備+binlog_server同步恢復被drop的庫或表 - 2森林 - 博客園 https://www.cnblogs.com/2woods/p/9394625.html
ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository - 西橙 - 博客園 https://www.cnblogs.com/Bccd/p/5856716.html
利用偽master主機來增量恢復mysql - CSDN博客 https://blog.csdn.net/zengxuewen2045/article/details/51465078
多台機器試驗
主機10.72.16.50的MySQL 3306實例
偽裝master 10.72.16.50的3307實例
偽裝master的slave 10.72.16.112 3306實例
一、創建試驗環境
10.72.16.50的MySQL 3306實例執行
1、備份數據庫
innobackupex --defaults-file=/etc/my.cnf -uroot -phch123 /root/test
2、模擬誤刪除
mysql> use hch; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> select * from tb1; +----+-------+ | id | cname | +----+-------+ | 1 | php | | 2 | java | | 3 | go | +----+-------+ 3 rows in set (0.03 sec) mysql> insert into tb1(cname) values('test'); Query OK, 1 row affected (0.06 sec) mysql> insert into tb1(cname) values('test1'); Query OK, 1 row affected (0.00 sec) mysql> insert into tb1(cname) values('test2'); Query OK, 1 row affected (0.00 sec) mysql> insert into tb1(cname) values('test3'); Query OK, 1 row affected (0.00 sec) mysql> insert into tb1(cname) values('test4'); Query OK, 1 row affected (0.00 sec) mysql> select * from tb1; +----+-------+ | id | cname | +----+-------+ | 1 | php | | 2 | java | | 3 | go | | 4 | test | | 5 | test1 | | 6 | test2 | | 7 | test3 | | 8 | test4 | +----+-------+ 8 rows in set (0.00 sec) mysql> insert into tb1(cname) values('test5'); Query OK, 1 row affected (0.00 sec) mysql> insert into tb1(cname) values('test6'); Query OK, 1 row affected (0.00 sec) mysql> insert into tb1(cname) values('test7'); Query OK, 1 row affected (0.00 sec) mysql> insert into tb1(cname) values('test8'); Query OK, 1 row affected (0.01 sec) mysql> select * from tb1; +----+-------+ | id | cname | +----+-------+ | 1 | php | | 2 | java | | 3 | go | | 4 | test | | 5 | test1 | | 6 | test2 | | 7 | test3 | | 8 | test4 | | 9 | test5 | | 10 | test6 | | 11 | test7 | | 12 | test8 | +----+-------+ 12 rows in set (0.00 sec)
執行誤操作
mysql> truncate table tb1;
Query OK, 0 rows affected (0.15 sec)
查看binlog位置
mysql> show master status\G;
*************************** 1. row ***************************
File: mysql-bin.000002
Position: 2731
Binlog_Do_DB:
Binlog_Ignore_DB:
Executed_Gtid_Set: 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,
671bac73-a032-11e8-a493-000c29bf3444:1-11,
909c25b1-7f67-11e8-9b9d-000c29bf3444:1,
ee639e4e-358a-11e7-87fa-000c29466957:1-753
1 row in set (0.00 sec)
ERROR:
No query specified
刷新日志
mysql> flush logs;
Query OK, 0 rows affected (0.08 sec)
mysql> select @@server_uuid;
+--------------------------------------+
| @@server_uuid |
+--------------------------------------+
| 671bac73-a032-11e8-a493-000c29bf3444 |
+--------------------------------------+
1 row in set (0.02 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| mysql-bin.000003 | 234 | | | 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,
671bac73-a032-11e8-a493-000c29bf3444:1-11,
909c25b1-7f67-11e8-9b9d-000c29bf3444:1,
ee639e4e-358a-11e7-87fa-000c29466957:1-753 |
+------------------+----------+--------------+------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
3、查看誤操作binlog日志位置
mysqlbinlog -v --base64-output=decode-rows mysql-bin.000002 > 2.sql
位置為mysql-bin.000002的2582，gtid為671bac73-a032-11e8-a493-000c29bf3444:11
二、在10.72.16.50上創建3307的偽裝master
1、初始化3307
[root@hchtest3 data]# /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3307/my3307.cnf --initialize [root@hchtest3 data]# cat error.log 2018-08-15T09:21:50.046760Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2018-08-15T09:21:53.749883Z 0 [Warning] InnoDB: New log files created, LSN=45790 2018-08-15T09:21:54.164271Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2018-08-15T09:21:54.572772Z 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: a68949d2-a06c-11e8-bba3-000c29bf3444. 2018-08-15T09:21:54.581852Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2018-08-15T09:21:54.586219Z 1 [Note] A temporary password is generated for root@localhost: 8/IHqjytdouM
2、啟動3307
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3307/my3307.cnf &
登錄修改密碼並關閉
[root@hchtest3 data]# mysql -S /tmp/mysql3307.sock -uroot -p mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.03 sec) mysql> alter user user() identified by 'hch123';
創建復制賬號
mysql> grant all privileges on *.* to hch@'%' identified by 'hch123'; mysql> flush privileges; mysql> shutdown; Query OK, 0 rows affected (0.02 sec)
3、拷貝50的3306 binlog至3307 datadir下
rm -rf /data/mysql/mysql3307/data/mysql-bin.* cp -a /data/mysql/mysql3306/backup/* /data/mysql/mysql3306/data/ 創建mysql-bin.index [root@hchtest3 data]# ls /data/mysql/mysql3307/data/mysql-bin.* > mysql-bin.index [root@hchtest3 data]# cat mysql-bin.index /data/mysql/mysql3307/data/mysql-bin.000001 /data/mysql/mysql3307/data/mysql-bin.000002 /data/mysql/mysql3307/data/mysql-bin.000003
修改權限
chown mysql. mysql-bin.*
4、啟動偽裝master 3307實例
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3307/my3307.cnf &
5、查看binlog日志
mysql> show master logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000001 | 493 | | mysql-bin.000002 | 2778 | | mysql-bin.000003 | 234 | | mysql-bin.000004 | 234 | +------------------+-----------+ mysql> show master status; +------------------+----------+--------------+------------------+---------------------------------------------------------------------------------------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+---------------------------------------------------------------------------------------------------------------------------+ | mysql-bin.000004 | 234 | | | 671bac73-a032-11e8-a493-000c29bf3444:1-11, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, a68949d2-a06c-11e8-bba3-000c29bf3444:1 | +------------------+----------+--------------+------------------+---------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.03 sec) mysql> select @@server_uuid; +--------------------------------------+ | @@server_uuid | +--------------------------------------+ | a68949d2-a06c-11e8-bba3-000c29bf3444 | +--------------------------------------+ 1 row in set (0.00 sec) 查看binlog位置發現多了a68949d2-a06c-11e8-bba3-000c29bf3444:1，這個為3307初始化后添加密碼操作產生的gtid，設置偽裝master從庫時gtid_purged需要添加這個否則會1236報錯
三、設置偽裝master 10.72.16.50 3307的slave 10.72.16.112 3306
1、用10.72.16.50 3306的全備還原
innobackupex --apply-log /root/test/2018-08-15_15-54-24
2、查看binlog日志備份位置
[root@hchtest3 2018-08-15_15-54-24]# cat xtrabackup_binlog_info mysql-bin.000002 234 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109, 671bac73-a032-11e8-a493-000c29bf3444:1, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, ee639e4e-358a-11e7-87fa-000c29466957:1-753 [root@hchtest3 2018-08-15_15-54-24]# cat xtrabackup_info uuid = 7b379338-a060-11e8-8a15-000c29bf3444 name = tool_name = innobackupex tool_command = --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -phch123 /root/test tool_version = 2.4.12 ibbackup_version = 2.4.12 server_version = 5.7.17-log start_time = 2018-08-15 15:54:29 end_time = 2018-08-15 15:54:47 lock_time = 0 binlog_pos = filename 'mysql-bin.000002', position '234', GTID of the last change '22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109, 671bac73-a032-11e8-a493-000c29bf3444:1, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, ee639e4e-358a-11e7-87fa-000c29466957:1-753'
位置為
mysql-bin.000002 234 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109, 671bac73-a032-11e8-a493-000c29bf3444:1, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, ee639e4e-358a-11e7-87fa-000c29466957:1-753
拷貝10.72.16.112的3306 datadir下，之前要停止10.72.16.112的3306，並清除datadir目錄。
[root@hchtest3 2018-08-15_15-54-24]# scp -r * root@10.72.16.112:/usr/local/mysql/data/
3、啟動slave並設置同步
[root@hchtest4 script]# service mysql status MySQL running (16977) [ OK ] mysql> reset master; Query OK, 0 rows affected (0.00 sec)
此處要加入50的3307的gtid mysql> SET @@GLOBAL.GTID_PURGED='22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,671bac73-a032-11e8-a493-000c29bf3444:1,909c25b1-7f67-11e8-9b9d-000c29bf3444:1,ee639e4e-358a-11e7-87fa-000c29466957:1-753,a68949d2-a06c-11e8-bba3-000c29bf3444:1'; mysql> change master to master_host='10.72.16.50', master_port=3307, master_user='hch', master_password='hch123', master_auto_position=1; Query OK, 0 rows affected, 2 warnings (0.01 sec) mysql> start slave sql_thread until sql_before_gtids='671bac73-a032-11e8-a493-000c29bf3444:11'; Query OK, 0 rows affected (0.03 sec) mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 10.72.16.50 Master_User: hch Master_Port: 3307 Connect_Retry: 60 Master_Log_File: Read_Master_Log_Pos: 4 Relay_Log_File: mysql-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: Slave_IO_Running: No Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 0 Relay_Log_Space: 154 Until_Condition: SQL_BEFORE_GTIDS Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 0 Master_UUID: Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109, 671bac73-a032-11e8-a493-000c29bf3444:1, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, a68949d2-a06c-11e8-bba3-000c29bf3444:1, ee639e4e-358a-11e7-87fa-000c29466957:1-753 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified mysql> start slave io_thread; Query OK, 0 rows affected (0.00 sec) mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 10.72.16.50 Master_User: hch Master_Port: 3307 Connect_Retry: 60 Master_Log_File: mysql-bin.000004 Read_Master_Log_Pos: 665 Relay_Log_File: mysql-relay-bin.000002 Relay_Log_Pos: 2715 Relay_Master_Log_File: mysql-bin.000002 Slave_IO_Running: Yes Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 2582 Relay_Log_Space: 4716 Until_Condition: SQL_BEFORE_GTIDS Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 503307 Master_UUID: a68949d2-a06c-11e8-bba3-000c29bf3444 Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: 671bac73-a032-11e8-a493-000c29bf3444:2-11, a68949d2-a06c-11e8-bba3-000c29bf3444:2-3 Executed_Gtid_Set: 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109, 671bac73-a032-11e8-a493-000c29bf3444:1-10, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, a68949d2-a06c-11e8-bba3-000c29bf3444:1, ee639e4e-358a-11e7-87fa-000c29466957:1-753 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified
查看發現數據已經恢復 mysql> select * from hch.tb1; +----+-------+ | id | cname | +----+-------+ | 1 | php | | 2 | java | | 3 | go | | 4 | test | | 5 | test1 | | 6 | test2 | | 7 | test3 | | 8 | test4 | | 9 | test5 | | 10 | test6 | | 11 | test7 | | 12 | test8 | +----+-------+ 12 rows in set (0.02 sec)
問題
slave設置時報錯1236
mysql> start slave io_thread; Query OK, 0 rows affected (0.00 sec) mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 10.72.16.50 Master_User: hch Master_Port: 3307 Connect_Retry: 60 Master_Log_File: Read_Master_Log_Pos: 4 Relay_Log_File: mysql-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: Slave_IO_Running: No Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 0 Relay_Log_Space: 154 Until_Condition: SQL_BEFORE_GTIDS Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 1236 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.' Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 503307 Master_UUID: a68949d2-a06c-11e8-bba3-000c29bf3444 Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: 180815 18:02:12 Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109, 671bac73-a032-11e8-a493-000c29bf3444:1, 909c25b1-7f67-11e8-9b9d-000c29bf3444:1, ee639e4e-358a-11e7-87fa-000c29466957:1-753 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified
原因為set gtid_purged時未加入偽裝master 10.72.16.50 3307 的gtid信息a68949d2-a06c-11e8-bba3-000c29bf3444:1
解決方法如下：
mysql> reset slave all; Query OK, 0 rows affected (0.05 sec) mysql> SET @@GLOBAL.GTID_PURGED='22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,671bac73-a032-11e8-a493-000c29bf3444:1,909c25b1-7f67-11e8-9b9d-000c29bf3444:1,ee639e4e-358a-11e7-87fa-000c29466957:1-753,a68949d2-a06c-11e8-bba3-000c29bf3444:1'; ERROR 1840 (HY000): @@GLOBAL.GTID_PURGED can only be set when @@GLOBAL.GTID_EXECUTED is empty. mysql> reset master; Query OK, 0 rows affected (0.00 sec) mysql> SET @@GLOBAL.GTID_PURGED='22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,671bac73-a032-11e8-a493-000c29bf3444:1,909c25b1-7f67-11e8-9b9d-000c29bf3444:1,ee639e4e-358a-11e7-87fa-000c29466957:1-753,a68949d2-a06c-11e8-bba3-000c29bf3444:1'; Query OK, 0 rows affected (0.00 sec)