文章来源：爱可生云数据库
作者：洪斌
DBA应该对InnoDB: Semaphore wait has lasted > 600 seconds. We intentionally crash the server because it appears to be hung. 一点都不陌生，MySQL后台线程srv_error_monitor_thread发现存在阻塞超过600s的latch锁时，如果连续10次检测该锁仍没有释放，就会触发panic避免服务持续hang下去。DBA应该对InnoDB: Semaphore wai
