备库启动、关闭 相关 io/sql进程-亲试ok

mysql> stop slave io_thread;

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> start slave io_thread;

Query OK, 0 rows affected (0.00 sec)

mysql> stop slave sql_thread;

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> start slave sql_thread;

Query OK, 0 rows affected (0.00 sec)