Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

Question

I am getting the following error when I try to connect to mysql:

Can\'t connect to local MySQL server through socket \'/var/lib/mysql/mysql.sock\' (2)<

Answer 1

if you change files in /var/lib/mysql [ like copy or replace that ], you must set owner of files to mysql this is so important if mariadb.service restart has been faild

chown -R mysql:mysql /var/lib/mysql/*

chmod -R 700 /var/lib/mysql/*

Answer 2

ran into this issue while trying to connect mysql in SSH client, found adding the socket path to the command helpful when switching between sockets is necessary.

> mysql -u user -p --socket=/path/to/mysql5143.sock

Answer 3

try

echo 0 > /selinux/enforce

Answer 4

Please ensure you have installed MySQL server correctly, I met this error many times and I think it's complicated to debug from the socket, I mean it might be easier to reinstall it.

If you are using CentOS 7, here is the correct way to install it:

First of all, add the mysql community source
yum install http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

Then you can install it by yum install mysql-community-server

Start it with systemctl: systemctl start mysqld

Answer 5

Try first 2, 3 solutions. Error is stil popup & If you can not find /var/lib/mysql/mysql.sock

find /var/ -name mysql.sock

Check the space available in /var/

df

If the directory is full remove some unusefull files/directories

rm /var/cache/*

Probably your issue will sorted now.

Answer 6

If your file my.cnf (usually in the etc folder) is correctly configured with

socket=/var/lib/mysql/mysql.sock

you can check if mysql is running with the following command:

mysqladmin -u root -p status

try changing your permission to mysql folder. If you are working locally, you can try:

sudo chmod -R 777 /var/lib/mysql/

that solved it for me