Mysql查询大表出现的一个错误

 

第一次测试执行下面的语句时发生如下错误：bigdata里面有100万条数据 mysql> select count(*) from (select distinct(id) from bigdata) as total; ERROR 1317 (70100): Query execution was interrupted 等了一会再执行一下就成功了 mysql>  select count(*) from (select distinct(id) from bigdata) as total; +----------+

| count(*) |

+----------+

|   598898 |

+----------+

1 row in set (6.60 sec) 猜测有可能是系统原因，CPU或内存运行不足导致。