importMySQLdb db=MySQLdb.connect(host="localhost",user="username",passwd="password",db="database")cursor=db.cursor()cursor.execute("SET SQL_DELAY=10")order_id=1product="Product A"quantity=10sql="INSERT INTO orders (order_id, product, quantity) VALUES (%s, %s, %s)"values=(order_id,prod...
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配置延迟从库的方法是,在从库上执行 STOP SLAVE; 命令暂停复制过程,然后使用 CHANGE MASTER TO MASTER_DELAY = N; 设置延迟时间(单位为秒),之后再执行 START SLAVE; 命令重新启动复制过程 。在监控延迟从库状态时,可以通过 SHOW SLAVE STATUS \G 命令查看 SQL_Delay 和 Seconds_Behind_Master 参数,其中 SQL_D...
mysql>stop slave; mysql>CHANGE MASTER TO MASTER_DELAY = 600; mysql>start slave; mysql>show slave status \G; 查看SQL_Delay的值为600,表示设置成功。 命令注释: SQL_Delay:一个非负整数,表示秒数,Slave滞后多少秒于master。 SQL_Remaining_Delay:当 Slave_SQL_Running_State 等待,直到MASTER_DELAY秒后,...
延时从库配置方法#停止主从mysql>stop slave;#设置延时为180秒mysql>CHANGE MASTER TO MASTER_DELAY = 180;#开启主从mysql>start slave;#查看状态mysql> show slave status \G SQL_Delay: 60 3.延时从库停止方法#停止主从mysql> stop slave;#设置延时为0mysql> CHANGE MASTER TO MASTER_DELAY = 0;#开启主从...
Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 2 Master_UUID: bb11b389-d2a7-11e3-b82b-5cf3fcfc8f58:2-973166 Master_Info_File: /var/lib/mysql/i1/data/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL ...
_Master: 52 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: 1125 Master_UUID: 8eed0f5b-6f9b-11e9-94a9-005056a57a4e Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL...
Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1 Master_UUID: bd047557-b20c-11ea-9961-0242ac120002 Master_Info_File: /var/lib/mysql/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting fo...
* from tmp;6.全备数据库 mysqldump -uroot -proot -S /data/3307/mysql.sock --databases delay >/tmp/delay.sql 7.恢复备份到主库 mysql -uroot -proot -e "set sql_log_bin=0;source /tmp/delay.sql;"验证数据 use delay; select * from tmp;此时主库与从库数据状态一致，8.恢复业务 ...