Linux下mysql修改连接超时wait_timeout
1,首先:
show variables like '%timeout%';
显示结果:
+-----------------------------+----------+ | Variable_name | Value | +-----------------------------+----------+ | connect_timeout | 10 | | delayed_insert_timeout | 300 | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 50 | | innodb_rollback_on_timeout | OFF | | interactive_timeout | 28800 | | lock_wait_timeout | 31536000 | | net_read_timeout | 30 | | net_write_timeout | 60 | | rpl_stop_slave_timeout | 31536000 | | slave_net_timeout | 3600 | | wait_timeout | 28800 | +-----------------------------+----------+ 12 rows in set (0.00 sec)
其中有用的是: interactive_timeout 和wait_timeout 为28800,默认为8小时设置;
一般线上的环境中mysql中连接时间设置为7天即可;
2,其次:
执行命令: set interactive_timeout=604800;
set wait_timeout=604800;
最后:执行show variables like '%timeout%';看看执行成功没有,显示结果为:
+-----------------------------+----------+ | Variable_name | Value | +-----------------------------+----------+ | connect_timeout | 10 | | delayed_insert_timeout | 300 | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 50 | | innodb_rollback_on_timeout | OFF | | interactive_timeout | 604800 | | lock_wait_timeout | 31536000 | | net_read_timeout | 30 | | net_write_timeout | 60 | | rpl_stop_slave_timeout | 31536000 | | slave_net_timeout | 3600 | | wait_timeout | 604800 | +-----------------------------+----------+ 12 rows in set (0.00 sec)