重启服务器后无法启动 MariaDB 10.3 数据库服务器

Question

重启后mariadb服务器启动失败，无法获取数据库

所以我输入了 service mariadb restart； journalctl -xe 查看详细错误：

[root@server ~]# service mariadb restart; journalctl -xe
Redirecting to /bin/systemctl restart mariadb.service
Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details.
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit user-1001.slice has finished shutting down.
Sep 10 01:13:27 server.itop.one polkitd[8162]: Registered Authentication Agent for unix-process:18782:236011 (system bus name :1.307 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freedesktop
Sep 10 01:13:27 server.itop.one systemd[1]: Starting MariaDB 10.3.31 database server...
-- Subject: Unit mariadb.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mariadb.service has begun starting up.
Sep 10 01:13:28 server.itop.one mysqld[18932]: 2021-09-10  1:13:28 0 [Note] /usr/sbin/mysqld (mysqld 10.3.31-MariaDB-log) starting as process 18932 ...
Sep 10 01:13:28 server.itop.one systemd[1]: mariadb.service: main process exited, code=exited, status=1/FAILURE
Sep 10 01:13:28 server.itop.one systemd[1]: Failed to start MariaDB 10.3.31 database server.
-- Subject: Unit mariadb.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mariadb.service has failed.
-- 
-- The result is failed.
Sep 10 01:13:28 server.itop.one systemd[1]: Unit mariadb.service entered failed state.
Sep 10 01:13:28 server.itop.one systemd[1]: mariadb.service failed.
Sep 10 01:13:28 server.itop.one polkitd[8162]: Unregistered Authentication Agent for unix-process:18782:236011 (system bus name :1.307, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US
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Answer 1

我只是面临同样的情况。 到目前为止，我的结论是“systemd”类型不会将其作为后台进程启动，并且由于 mysqld intself 的行为类似于后台守护进程（就像它实际上应该那样），systemd 在设置后 900 秒后将其杀死。 现在我不能说为什么会这样，我也不知道如何改变它，但我的解决方法是自己从 shell 中将 mysqld 作为守护进程启动，这样它就不会被 systemd 杀死。超时。