在安装好了MySQL之后,使用了新的配置文件后,MySQL服务器可以成功启动,但在登陆的时候出现了ERROR 2002 (HY000): Can't connect to local MySQL server through socket,即无法通过socket连接到mysql服务器,同时提供了socket文件的位置。下面是这个问题的描述与解决办法。
1、故障现象
[root@SZDB mysqldata]# mysql -uroot -p123456
Warning: Using a password on the command line interface can be insecure.
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/data/mysqldata/mysql.sock' (111)
#故障环境
[root@SZDB mysqldata]# more /etc/issue
CentOS release 5.9 (Final)
Kernel \r on an \m
2、故障分析
#查看mysql实例的状态
[root@SZDB mysqldata]# netstat -ntlp | grep 3306
tcp 0 0 :::3306 :::* LISTEN 13001/mysqld
#查看my.cnf关于socket的配置
[root@SZDB mysqldata]# more /etc/my.cnf |grep sock
socket = /tmp/mysql.sock
#由上可知my.cnf中定义的为/tmp目录下,而错误提示为/data/mysqldata/目录下
#也就是说mysqld已经声称了正确的sock文件,但客户端连接还是从初始目录去找sock文件
#下面查看后台日志,有个ERROR,是关于满查询日志的,是由于目录不存在而产生的错误,与当前故障无关
[root@SZDB mysqldata]# more SZDB.err
............
2014-10-11 13:17:21 13001 [Note] InnoDB: 5.6.12 started; log sequence number 1625997
/app/soft/mysql/bin/mysqld: File '/log/mysql_logs/slowquery.log' not found (Errcode: 2 - No such file or directory)
2014-10-11 13:17:21 13001 [ERROR] Could not use /log/mysql_logs/slowquery.log for logging (error 2). Turning logging off for the who
le duration of the MySQL server process. To turn it on again: fix the cause, shutdown the MySQL server and restart it.
2014-10-11 13:17:21 13001 [Note] Server hostname (bind-address): '*'; port: 3306
2014-10-11 13:17:21 13001 [Note] IPv6 is available.
2014-10-11 13:17:21 13001 [Note] - '::' resolves to '::';
2014-10-11 13:17:21 13001 [Note] Server socket created on IP: '::'.
2014-10-11 13:17:21 13001 [Note] Event Scheduler: Loaded 0 events
2014-10-11 13:17:21 13001 [Note] /app/soft/mysql/bin/mysqld: ready for connections.
Version: '5.6.12-log' socket: '/tmp/mysql.sock' port: 3306 Source distribution
#Author :Leshami
#Blog : http://blog.csdn.net/leshami
3、解决故障
a、通过配置my.cnf mysql选项socket文件位置解决
#先停止mysql服务器
[root@SZDB mysqldata]# service mysqld stop
Shutting down MySQL.[ OK ]
#修改my.cnf,如下
[root@SZDB mysqldata]# vi /etc/my.cnf
[mysql]
no-auto-rehash
socket = /tmp/mysql.sock #添加该行
#重启mysql服务器
[root@SZDB mysqldata]# service mysqld start
Starting MySQL..[ OK ]
#再次连接正常
[root@SZDB mysqldata]# mysql -uroot -p
Enter password:
mysql> show variables like 'version';
+---------------+------------+
| Variable_name | Value |
+---------------+------------+
| version | 5.6.12-log |
+---------------+------------+
b、为socket文件建立链接方式
[root@SZDB mysqldata]# ln -s /tmp/mysql.sock /data/mysqldata/mysql.sock
ln: creating symbolic link `/data/mysqldata/mysql.sock' to `/tmp/mysql.sock': File exists
[root@SZDB mysqldata]# rm mysql.sock #上面提示文件存在,所以删除之前的mysql.sock文件
[root@SZDB mysqldata]# ln -s /tmp/mysql.sock /data/mysqldata/mysql.sock
[root@SZDB mysqldata]# ls -hltr mysql.sock
lrwxrwxrwx 1 root root 15 Oct 11 14:00 mysql.sock -> /tmp/mysql.sock
[root@SZDB mysqldata]# mysql -uroot -p
Enter password:
mysql> show variables like 'socket';
+---------------+-----------------+
| Variable_name | Value |
+---------------+-----------------+
| socket | /tmp/mysql.sock |
+---------------+-----------------+
分享到:
相关推荐
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2) 的异常。是用dmg直接安装的以为安装包又出现了奇奇怪怪的错误,正欲卸载该版本时找到了我的问题的关键。 解决...
在安装好了MySQL之后,使用了新的配置文件后,MySQL服务器可以成功启动,但在登陆的时候出现了ERROR 2002 (HY000): Can’t connect to local MySQL server through socket,即无法通过socket连接到mysql服务器,同时...
mysql 支持 socket 和 TCP/IP 连接。那么 mysql.sock 这个文件有什么用呢?本文给大家介绍的非常详细,需要的朋友参考下吧
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2) 出现问题原因: 有可能是 my.cnf 配置文件中设置了 [mysqld] 的参数 socket ,而没有设置[client]的参数socket ...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
主要介绍了MySQL错误ERROR 2002 (HY000): Can't connect to local MySQL server through socket,需要的朋友可以参考下
?php $link=mysql_connect(‘localhost’,’root’,... 运行后报错 Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ 但在 命令行中能进入mysql [root@localhost local]# mysql -u root -p E
ERROR 2002 (HY000): Can't connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock' (2) 排查过程 1、先查看 /etc/rc.d/init.d/mysqld status 看看mysql是否已经启动. 另外看看是不是权限问题...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysqld.sock' (2) 2、故障分析 查看mysql实例的状态 [root@localhost scripts]# netstat -ntlp | grep 3306 tcp 0 0 :
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) 如果说出现这个一般就是因为MySQL没有起来 [root@localhost ~]# mysql -uroot -p ERROR 1045 (28000):...
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2) 分析:使用mysql –verbose –help进行分析,才发现原来port和socket对应的值都为0或者为空,也就是默认参数都...
服务器:unbuntu16.04,阿里云 ... ...第一阶段:此时以为再重启...ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' 怎么办呢,看看这个啥文件先,然而查到是这个文
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) root@localhost:~# service mysqld restart Shutting down MySQL.. [ OK ] Starting MySQL.