MySQL Study案例之--MySQL客户端连接故障
系统环境:
操作系统:RedHat EL6
DB Soft: MySQL 5.6.4-m7
在系统安装了源码包 MySQL 5.6.4-m7版本,启动服务后,客户端连接失败 !
[[email protected] ~]# cd /usr/local/mysql/ [[email protected] mysql]# cd bin [[email protected] bin]# ./mysql -u root -p Enter password: ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/tmp/mysql.sock‘ (13) --连接server失败 [[email protected] bin]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.1.66 Source distribution Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement. mysql>
--连入了系统自带的5.1.66的版本
解决方法:
查看配置文件,并修改
[[email protected] bin]# cat /etc/my.cnf [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid 更改socket参数: [[email protected] bin]# vi /etc/my.cnf [mysqld] datadir=/var/lib/mysql socket=/tmp/mysql.sock #socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid ~
验证:
停止mysqld进程: [[email protected] bin]# ps -ef |grep mysql root 4482 4456 0 12:27 pts/3 00:00:00 /bin/sh /usr/bin/mysqld_safe --user=mysql mysql 4553 4482 0 12:27 pts/3 00:00:00 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --log-error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/lib/mysql/mysql.sock root 4590 4456 1 12:29 pts/3 00:00:00 grep mysql [[email protected] bin]# pkill mysql [[email protected] bin]# ps -ef |grep mysql150206 12:30:03 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended root 4597 4456 0 12:30 pts/3 00:00:00 grep mysql [1]+ Done mysqld_safe --user=mysql (wd: ~) (wd now: /usr/local/mysql/bin) [[email protected] bin]# ps -ef |grep mysql root 4599 4456 0 12:30 pts/3 00:00:00 grep mysql 重新启动mysqld进程: [[email protected] bin]# ./mysqld_safe & [1] 4602 [[email protected] bin]# 150206 12:30:17 mysqld_safe Logging to ‘/var/log/mysqld.log‘. 150206 12:30:18 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 客户端连接成功: [[email protected] bin]# ./mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.4-m7 Source distribution Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement. mysql> mysql> status -------------- ./mysql Ver 14.14 Distrib 5.6.4-m7, for Linux (x86_64) using EditLine wrapper Connection id: 3 Current database: Current user: [email protected] SSL: Not in use Current pager: stdout Using outfile: ‘‘ Using delimiter: ; Server version: 5.6.4-m7 Source distribution Protocol version: 10 Connection: Localhost via UNIX socket Server characterset: latin1 Db characterset: latin1 Client characterset: utf8 Conn. characterset: utf8 UNIX socket: /tmp/mysql.sock Uptime: 26 min 33 sec Threads: 1 Questions: 6 Slow queries: 0 Opens: 66 Flush tables: 1 Open tables: 59 Queries per second avg: 0.003 -------------- mysql>
@至此,问题解决
时间: 2024-10-07 02:42:57