MySQL deadlock

Preface ： modify 、 Delete where Conditions cannot have only non index non primary key , Otherwise, it is prone to deadlock

The system monitors that the task failed , Inquire about ELK Error reason

        MYSQL encounter Deadlock found when trying to get lock      , intend Deadlock found while trying to acquire lock ！

         Find it at the first time DBA Query deadlock log

        command ：show engine innodb status;