Can't connect to local MySQL server through socket

然后使用命令查看mysql是不是真的已经起来了

ps -A|grep mysql

查看,两个进程都启动了，看着是正常，但是查看端口时发现3306端口并没有开启，什么问题？？？

接着查，看一下mysql当前处于什么状态

service mysqld status

输出结果不是刚才想的那样：

MySQL is running but PID file could not be found

有网友提示将mysql进程杀死，然后重启，试了，无效。

查看mysql的错误日志，显示如下信息：

/usr/local/mysql/bin/mysqld: Disk is full writing ‘./mysql-bin.~rec~‘ (Errcode: 28). Waiting for someone to free space... (Expect up to 60 secs delay for server to continue after freeing disk space)

原来是磁盘不足，清理了下磁盘正常了。

Can't connect to local MySQL server through socket

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