MySQL is running but PID file could not be found [FAILED]

通过cmake方式在阿里云服务器上安装mysql时，安装完成后，运行mysql发生如下错误

显示ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

首先查看mysql是否启动

# ps -A | grep mysql

状态似乎不正常，再查看mysql进程状态

# service mysqld status

kill掉当前不正常的进程

# kill -9 15731 15795

重新启动mysql

再次查看mysql状态

进入mysql终端