discuz论坛：security_failedlog' is marked as crashed

最近发现 Discuz! Database Error：

(144) Table 'security_failedlog' is marked as crashed and last (automatic?) repair failed

SELECT count(*) FROM security_failedlog

原来这是防火墙防水贴的表坏了。需要修复。很简单地，我们试图 repair table security_failedlog；但是发现无效。试图 myisamchk -r -c security_failedlog；还是无效，决定更改参数 -c -f；修改好了；delete from 该表；