1 详细异常

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

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