Mysql service starts but cannot connect. Two solutions-Mysql Tutorial-php.cn

Mysql service starts but cannot connect. Two solutions

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Release： 2017-04-03 17:36:26

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This article mainly introduces in detail the solution to the problem that the mysql service is started but cannot be connected. It has certain reference value. Interested friends can refer to

mysql service is started but cannot be connected. Not working, how to solve it?

Login error:

  root@localhost:~# mysql -u root -p
  Enter password:
  ERROR 2002 (HY000): Can&#39;t connect to local MySQL server through socket &#39;/var/lib/mysql/mysql.sock&#39; (2)
  root@localhost:~# service mysqld restart
  Shutting down MySQL..                   [ OK ]
  Starting MySQL.                      [ OK ]
  root@localhost:~# mysql -u root -p
  Enter password:
  ERROR 2002 (HY000): Can&#39;t connect to local MySQL server through socket &#39;/var/lib/mysql/mysql.sock&#39; (2)

Copy after login

Analysis of the reason:

Reason Unknown, if you know, please add

Solution 1:

 root@localhost:~# find / -name mysql.sock
 /tmp/mysql.sock
 root@localhost:~# mysql -u root -p -S /tmp/mysql.sock
 Enter password:
 Welcome to the MySQL monitor. Commands end with ; or \g.
 Your MySQL connection id is 1
 Server version: 5.6.15-log 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 &#39;help;&#39; or &#39;\h&#39; for help. Type &#39;\c&#39; to clear the current input statement.

 mysql>

Copy after login

Solution 2:

 root@localhost:~# find / -name mysql.sock
 /tmp/mysql.sock
 root@localhost:~# vi /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1

# Disabling symbolic-links is recommended to prevent assorted security risks;
# to do so, uncomment this line:
# symbolic-links=0

# 加上下面的这段代码即可
[mysql]
socket=/tmp/mysql.sock

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

root@localhost:~# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.6.15-log 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 &#39;help;&#39; or &#39;\h&#39; for help. Type &#39;\c&#39; to clear the current input statement.

mysql>

Copy after login

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