大表count(*) 导致宕机

发布时间：2020-08-05 04:23:35 来源：ITPUB博客阅读：400 作者：G8bao7 栏目：MySQL数据库

对表做 select count(*) from tbname;

异常信息如下

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016-03-24 21:37:28 17887 [ERROR] InnoDB: Tried to read 16384 bytes at offset 50072698880. Was only able to read 8192.
2016-03-24 21:37:28 7faab67f6700 InnoDB: Operating system error number 11 in a file operation.
InnoDB: Error number 11 means 'Resource temporarily unavailable'.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.6/en/operating-system-error-codes.html
2016-03-24 21:37:28 7faab67f6700 InnoDB: File operation call: 'read' returned OS error 111.
2016-03-24 21:37:28 7faab67f6700 InnoDB: Cannot continue operation.
pure virtual method called
pure virtual method called
terminate called without an active exception
terminate called without an active exception
13:37:28 UTC - mysqld got signal 6 ;
This could be because you hit a bug. It is also possible that this binary

ulimit -a 没超过限制

可能是表数据文件损坏，在slave上执行没有报错

向AI问一下细节

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