MySQL无法启动重启竟是因为改了Linux主机名
MySQL无法重启、无法关闭、无法启动、无法使用,如果是因为修改了主机名,可以这样解决:关闭掉所有mysql进程,然后在启动一些mysql!有时候,只要执行如下MySQL初始化命令即可解决:/usr/local/mysql/bin/mysql_install_db--user=mysql今天无事看到自己的主机名不对,于是改了一下,以便区分服务器,那只重启mysql时出现下面错误:MySQL manager or server PID file could not be found!
Starting MySQL.Manager of pid-file quit without updating fi怎么会找不到PID呢,看下面:[root@daban114.com ~]#ps aux | grep mysql
mysql 164330.00.2366365756 ? Sl 15:07 0:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/var --user=mysql --log-error=/usr/local/mysql/var/hao9goAndSecondWeb.err --pid-file=/usr/local/mysql/var/hao9goAndSecondWeb.pid --socket=/tmp/mysql.sock --port=3306
root 169920.00.0 4020 704 pts/0 S+ 15:11 0:00 grep mysql原来PID还是原来主机名.pid,运行:kill -9 <mysqlpid> 然后 service mysql start 哈哈看到绿色的OK了,# service mysql start
Starting MySQL. [ OK]
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