單臺機器開啓2個mysql實例 3306和3307,
3306 和3307實例都開啓了Gtid,而且要保證server-id不一樣mysql
time innobackupex --defaults-file=/data/mysql5.7/my3306.cnf -ubackupuser -p123456ccs --host=127.0.0.1 -S /tmp/3306.sock /data/backup/
當天的xtrabackup全量備份文件記錄的binlog的位置點:sql
[root@e ~]# cat /data/backup/2019-08-16_17-59-10/xtrabackup_binlog_info mysql-bin.000009 117268 efdcb9c7-bf3d-11e9-b0bf-90b11c20454d:1-876
恢復備份到新的實例mysql3307的上:app
innobackupex --apply-log /data/backup/2019-08-16_17-59-10/ innobackupex --defaults-file=/data/mysql5.7/my3307.cnf --copy-back /data/backup/2019-08-16_17-59-10/
受權新實例data目錄mysql的權限:ide
chown -R mysql.mysql /data/mysql5.7/3307/data
提示:/data/mysql5.7/my3307.cnf 配置文件要開啓gtid,而且要註釋掉定時器:#event_scheduler = ON,默認定時器是關閉的3d
啓動mysql 3307 實例:code
/usr/local/mysql5.7/bin/mysqld --defaults-file=/data/mysql5.7/my3307.cnf & mysql> show variables like 'event_scheduler' -> ; +-----------------+-------+ | Variable_name | Value | +-----------------+-------+ | event_scheduler | OFF | +-----------------+-------+ 1 row in set (0.01 sec) [root@e data]# mysql -uroot -p'lnmp.org#25199' -S /tmp/3307.sock -e "select @@port" Warning: Using a password on the command line interface can be insecure. +--------+ | @@port | +--------+ | 3307 | +--------+
在3306庫上建立複製帳戶:server
grant replication slave *.* to 'rep'@'192.168.0.%' identified by '654321testrep';flush privileges;
清除3307實例的Gtid信息:lnmp
mysql> reset master;it
當天的xtrabackup全量備份文件記錄的binlog的位置點以及事物gtid執行結束的位置:io
[root@e ~]# cat /data/backup/2019-08-16_17-59-10/xtrabackup_binlog_info mysql-bin.000009 117268 efdcb9c7-bf3d-11e9-b0bf-90b11c20454d:1-876
3307 slave實例上要讓gtid號從efdcb9c7-bf3d-11e9-b0bf-90b11c20454d:1-876 之後開始記錄:
mysql> set global gtid_purged='efdcb9c7-bf3d-11e9-b0bf-90b11c20454d:1-876'; mysql> show master status\G *************************** 1. row *************************** File: mysql-bin.000001 Position: 154 Binlog_Do_DB: Binlog_Ignore_DB: Executed_Gtid_Set: efdcb9c7-bf3d-11e9-b0bf-90b11c20454d:1-876 1 row in set (0.00 sec)
3307 slave實例上執行:
CHANGE MASTER TO MASTER_HOST='192.168.0.1', MASTER_USER='rep', MASTER_PASSWORD='654321testrep', MASTER_PORT=3306, MASTER_AUTO_POSITION = 1; start slave;show slave status\G
slave庫上查看:
[root@e data]# mysql -uroot -p'lnmp.org#25199' -S /tmp/3307.sock -e "show slave status\G"|egrep "Slave_IO|Slave_SQL" Warning: Using a password on the command line interface can be insecure. Slave_IO_State: Waiting for master to send event Slave_IO_Running: Yes Slave_SQL_Running: Yes Slave_SQL_Running_State: Slave has read all relay log; waiting for more update
到此處主從複製搭建完成