centos7 mysql: mariadb-wait-ready $MAINPID (code=exited, status=1/FAILURE)
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在centos7环境上重装mysql时运行命令
删除:#yum remove mariadb*
重装:#yum -y install mariadb*
启动:#systemctl start mariadb.service 此时数据库启动报错
查看启动状态:#systemctl status mariadb -l
mariadb.service - MariaDB database server Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled) Active: failed (Result: exit-code) since Wed 2015-01-07 22:47:01 EST; 9s ago Process: 19037 ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID (code=exited, status=1/FAILURE) Process: 19036 ExecStart=/usr/bin/mysqld_safe --basedir=/usr (code=exited, status=0/SUCCESS) Process: 19009 ExecStartPre=/usr/libexec/mariadb-prepare-db-dir %n (code=exited, status=0/SUCCESS) Main PID: 19036 (code=exited, status=0/SUCCESS)Jan 07 22:47:00 JX-Store systemd[1]: Starting MariaDB database server...Jan 07 22:47:00 JX-Store mysqld_safe[19036]: 150107 22:47:00 mysqld_safe Logging to '/var/log/mariadb/mariadb.log'.Jan 07 22:47:00 JX-Store mysqld_safe[19036]: 150107 22:47:00 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysqlJan 07 22:47:00 JX-Store mysqld_safe[19036]: 150107 22:47:00 mysqld_safe mysqld from pid file /var/run/mariadb/mariadb.pid endedJan 07 22:47:01 JX-Store systemd[1]: mariadb.service: control process exited, code=exited status=1Jan 07 22:47:01 JX-Store systemd[1]: Failed to start MariaDB database server.Jan 07 22:47:01 JX-Store systemd[1]: Unit mariadb.service entered failed state
网上查了下,有的说是权限问题,设置了/var/lib/mysql 这个目录的权限扔不起作用
配置/etc/my.cnf 文件也不起作用
解决办法:
最后,我删除了/var/lib/mysql 和 /etc/my.cnf 重新安装就没有错了。
/var/lib/mysql 这个目录重装完后是不存在任何数据的,但是启动后产生了许多文件 如:mysql.sock,如果想直到为何会这样只能查看mysql官网了
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