MySQL表損壞修復【Incorrect key file for table】


今天機房mysql服務器異常關機,重新啟動后報錯如下:

2017-09-08 09:35:20 1808 [ERROR] /usr/local/mysql/bin/mysqld: Incorrect key file for table './cdb/passport_account.MYI'; try to repair it
2017-09-08 09:35:20 1808 [ERROR] /usr/local/mysql/bin/mysqld: Incorrect key file for table './cdb/passport_account.MYI'; try to repair it
2017-09-08 09:35:20 1808 [ERROR] Got an error from thread_id=115353, /usr/local/src/mysql-5.x.30/storage/myisam/mi_update.c:223
2017-09-08 09:35:20 1808 [ERROR] MySQL thread id 115353, OS thread handle 0x7ff560e3d700, query id 40381677 192.168.5.202 csr updating

修復方法如下:

mysql> repair table passport_account;
+----------------------+--------+----------+----------+
| Table                | Op     | Msg_type | Msg_text |
+----------------------+--------+----------+----------+
| cdb.passport_account | repair | status   | OK       |
+----------------------+--------+----------+----------+
1 row in set (3 min 34.72 sec)

恢復正常。

ps:有朋友遇到到執行SQL的時候,產生臨時數據占滿了/tmp磁盤空間,可以把臨時文件選擇放在空間大的磁盤目錄下面,解決方法如下:

mysql> show variables like 'tmpdir';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| tmpdir        | /tmp  |
+---------------+-------+
1 row in set (0.00 sec)

mysql> set global tmpdir = '/Data/xxx/mysqltmp';
ERROR 1238 (HY000): Variable 'tmpdir' is a read only variable

如果有報錯可以配置文件

vim /etc/mysql/my.cnf

此處可以修改 tmpdir 的屬性值,也可以修改 query_cache_limit 的數值,建議使用后者

重啟MySQL就ok了

 


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