mysql 5.6 myisam 引擎表损坏
[*]告警日志发现报错
2016-12-05 13:01:23 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2016-12-05 13:01:23 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2016-12-05 13:01:25 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2016-12-05 13:01:26 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2016-12-05 13:01:28 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2016-12-05 13:01:29 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2016-12-05 13:01:31 27830 /usr/sbin/mysqld: Table './user/t_customer' is marked as crashed and should be repaired
2.检查table
(root@localhost) > check table t_customer;
+---------------------------------+-------+----------+----------------------------------------------------------+
| Table | Op | Msg_type | Msg_text |
+---------------------------------+-------+----------+----------------------------------------------------------+
| user.t_customer | check | warning| Table is marked as crashed |
| user.t_customer | check | warning| 2 clients are using or haven't closed the table properly |
| user.t_customer | check | error | Checksum for key:2 doesn't match checksum for records|
| user.t_customer | check | error | Corrupt |
+---------------------------------+-------+----------+----------------------------------------------------------+
4 rows in set (0.10 sec)
3.修复表
(root@localhost) > repair table t_customer;
+---------------------------------+--------+----------+----------+
| Table | Op | Msg_type | Msg_text |
+---------------------------------+--------+----------+----------+
| user.t_customer | repair | status | OK |
+---------------------------------+--------+----------+----------+
1 row in set (0.27 sec)
4.再次检查表
(root@localhost) > check table t_customer;
+---------------------------------+-------+----------+----------+
| Table | Op | Msg_type | Msg_text |
+---------------------------------+-------+----------+----------+
| user.t_customer | check | status | OK |
+---------------------------------+-------+----------+----------+
1 row in set (0.00 sec)
(root@localhost) >
建议:
1)MySQL 5.6版本建议不要使用myisam引擎，innodb引擎完全可以取代myisam引擎，并且innodb引擎也是5.6版本的默认引擎。
2)数据库的非正常启停、以及服务器异常关机等容易造成表的损坏。
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