MySQL无法启动:ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

1 详细异常

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ct 11 17:31:51 bd02.getngo.com mysqld[20513]: 2019-10-11T09:31:51.187848Z 0 [Note] /usr/sbin/mysqld: Shutdo Oct 11 17:31:51 bd02.getngo.com systemd[1]: Failed to start MySQL Server. -- Subject: Unit mysqld.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit mysqld.service has failed. -- -- The result is failed. Oct 11 17:31:51 bd02.getngo.com systemd[1]: Unit mysqld.service entered failed state. Oct 11 17:31:51 bd02.getngo.com systemd[1]: mysqld.service failed. Oct 11 17:31:51 bd02.getngo.com systemd[1]: mysqld.service holdoff time over, scheduling restart. Oct 11 17:31:51 bd02.getngo.com systemd[1]: Stopped MySQL Server. -- Subject: Unit mysqld.service has finished shutting down -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit mysqld.service has finished shutting down. Oct 11 17:31:51 bd02.getngo.com systemd[1]: start request repeated too quickly for mysqld.service Oct 11 17:31:51 bd02.getngo.com systemd[1]: Failed to start MySQL Server. -- Subject: Unit mysqld.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit mysqld.service has failed. -- -- The result is failed. Oct 11 17:31:51 bd02.getngo.com systemd[1]: Unit mysqld.service entered failed state. Oct 11 17:31:51 bd02.getngo.com systemd[1]: mysqld.service failed.

　　

2 问题原因

mysql软连接错误问题 

检查一下文件权限，是否可执行，启动用户是否正确