本文主要向大家介紹了MySQL數據庫服務啟動失敗 ，通過具體的內容向大家展現，希望對大家學習MySQL數據庫有所幫助。

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[root@training?~]#?systemctl?start?mysql

Job?for?mysqld.service?failed?because?the?control?process?exited?with?error?code.?See?"systemctl?status?mysqld.service"?and?"journalctl?-xe"?for?details.

使用systemctl?status查看狀態：

[root@training?~]#?systemctl?status?mysql

●?mysqld.service?-?LSB:?start?and?stop?MySQL

Loaded:?loaded?(/etc/rc.d/init.d/mysqld;?bad;?vendor?preset:?disabled)

Active:?failed?(Result:?exit-code)?since?Sun?2018-05-06?10:06:53?CST;?26min?ago

Docs:?man:systemd-sysv-generator(8)

Process:?29770?ExecStart=/etc/rc.d/init.d/mysqld?start?(code=exited,?status=1/FAILURE)

May?06?10:06:52?training?systemd[1]:?Starting?LSB:?start?and?stop?MySQL...

May?06?10:06:53?training?mysqld[29770]:?Starting?MySQL.The?server?quit?without?updating?PID?file?(/usr/local/mysql/data/mysql/training.pid).[FAILED]

May?06?10:06:53?training?systemd[1]:?mysqld.service:?control?process?exited,?code=exited?status=1

May?06?10:06:53?training?systemd[1]:?Failed?to?start?LSB:?start?and?stop?MySQL.

May?06?10:06:53?training?systemd[1]:?Unit?mysqld.service?entered?failed?state.

May?06?10:06:53?training?systemd[1]:?mysqld.service?failed.

具體原因還在分析中

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