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

<span style="color: #0000ff;">ps</span> -A|<span style="color: #0000ff;">grep</span> 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 <span style="color: #800000;">‘</span><span style="color: #800000;">./mysql-bin.~rec~</span><span style="color: #800000;">‘</span> (Errcode: <span style="color: #800080;">28</span>). Waiting <span style="color: #0000ff;">for</span> someone to <span style="color: #0000ff;">free</span> space... (Expect up to <span style="color: #800080;">60</span> secs delay <span style="color: #0000ff;">for</span> 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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