前言
本文主要给大家介绍了关于Mysql启动报ERROR:2002的分析与解决,分享出来供大家参考学习,下面话不多说了,来一起看看详细的介绍吧。
1、故障现象
1
2
|
[root@localhost scripts] # mysql -u root 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
1
2
|
[root@localhost scripts] # netstat -ntlp | grep 3306 tcp 0 0 :::3306 :::* LISTEN 13001 /mysqld |
查看my.cnf关于socket的配置
1
2
|
[root@localhost scripts] # more /etc/my.cnf |grep sock socket = /tmp/mysqld .sock |
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
[root@localhost scripts] # 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://www.zzvips.com |
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
1
2
|
[root@localhost scripts] # systemvtl restart mysqld Shutting down MySQL.[ OK ] |
修改my.cnf,如下
1
2
3
4
|
[root@localhost scripts] # vi /etc/my.cnf [mysql] no-auto-rehash socket = /tmp/mysqld .sock #添加该行 |
重启mysql服务器
1
2
|
[root@localhost scripts] # systemctl restart mysqld Starting MySQL..[ OK ] |
再次连接正常
1
2
3
4
5
6
7
8
|
[root@localhost scripts] # 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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
[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 | +---------------+-----------------+ |
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流,谢谢大家对服务器之家的支持。
原文链接:http://www.178linux.com/85634