MySQL 访问某数据 crash
症状: mysqldump 导出数据 或者访问某张表的或者某条数据的时候 mysql 直接 挂 了. 日志如下: InnoDB: Database page corruption
症状: mysqldump 导出数据 或者访问某张表的或者某条数据的时候 mysql 直接 挂 了.
日志如下:
InnoDB: Database page corruption on disk or a failed
InnoDB: file read of page 26400.
InnoDB: You may have to recover from a backup.
120217 15:45:53 InnoDB: Page dump in ascii and hex (16384 bytes):
len 16384; hex a922822af0c7bcef6d93dadcf4f63e8331d51e7a490667defbefxxxx..................
InnoDB: End of page dump
f 6 PE a r zx3120217 15:45:53 InnoDB: Page checksum 3458627726, prior-to-4.0.14-form checksum 796906866
InnoDB: stored checksum 2837611050, prior-to-4.0.14-form stored checksum 2410301789
InnoDB: Page lsn 836050554 1225156574, low 4 bytes of lsn at page end 2266014174
InnoDB: Page number (if stored to page already) 4039621871,
InnoDB: space id (if created with >= MySQL-4.1.1 and stored already) 4222022822
InnoDB: Database page corruption on disk or a failed
InnoDB: file read of page 26400.
InnoDB: You may have to recover from a backup.
InnoDB: It is also possible that your operating
InnoDB: system has corrupted its own file cache
InnoDB: and rebooting your computer removes the
InnoDB: error.
InnoDB: If the corrupt page is an index page
InnoDB: you can also try to fix the corruption
InnoDB: by dumping, dropping, and reimporting
InnoDB: the corrupt table. You can use CHECK
InnoDB: TABLE to scan your table for corruption.
InnoDB: See also
InnoDB: about forcing recovery.
InnoDB: Ending processing because of a corrupt database page.
解决: 具体原因不明 参考文档:
首先D:\cn.tsoft.system\mysql5.1.37\bin>mysqlcheck -uroot -pxxxx -P3306 --all-database 定位哪张表出了问题
执行结果如下:
tech_soft_drp_361new.pos_tradebill_cashredeem_item OK
mysqlcheck: Got error: 2013: Lost connection to MySQL server during query when e
xecuting 'CHECK TABLE ... '
由tech_soft_drp_361new.pos_tradebill_cashredeem_item 知道下一张表是 pos_tradebill_item
将my.ini 里边的#innodb_force_recovery=1 #号去掉 重启mysql服务
然后将pos_tradebill_item 数据导出到文件(导出的时候注意导出数据的条数是否正确!)(记录select count(*) from pos_tradebill_item 与导出的条数对比)
找到pos_tradebill_item的建表语句.
删除pos_tradebill_item表
重建pos_tradebill_item表.
导入pos_tradebill_item数据(导入数据的时候将innodb_force_recovery=1重新加上#号. innodb_force_recovery=1模式不支持写)