MySQL提示:The server quit without updating PID file问题，启动msyql服务的时候错误提示截图如下：
解决办法：
查询mysql错误日志，搜索mysql-error.log：
find / -name mysql-error.log
日志如下：
InnoDB: We do not continue the crash recovery, because the table may become
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
InnoDB: To fix the problem and start mysqld:
InnoDB: 1) If there is a permission problem in the file and mysqld cannot
InnoDB: open the file, you should modify the permissions.
InnoDB: 2) If the table is not needed, or you can restore it from a backup,
InnoDB: then you can remove the .ibd file, and InnoDB will do a normal
InnoDB: crash recovery and ignore that table.
InnoDB: 3) If the file system or the disk is broken, and you cannot remove
InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf
InnoDB: and force InnoDB to continue crash recovery here.
我们参考第三点，在mysql.cnf中添加如下配置：
innodb_force_recovery = 1
放在mysqld后面，如下：
重新启动msyql后成功！
