ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)

Hi, I currenty have a LAMP, running on Centos, everything was fine, but my MYSQL is not working.

When i try to connect via

mysql -u root -p

I get the error:

ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (111)

Note: This error has been occur, when i will install WordPress theme on my Site, after this, i will click on the Import Demo Button to import the FrontPage, then error occur.

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Restart MySQL

service mysqld start

if using MariaDB use

sudo systemctl start mariadb


Dear, When i will enter this command on PuTTy, i get an error tail: cannot open ‘/var/log/mysql/error.log’ for reading: No such file or directory Note: I have 512 MB Ram Server with lot of Bandwidth Available. I Will Deploy Server and Start Installing WordPress, everything was fine, but when i will try to install theme, after this it shows an database error.

lsof -i:3306 kill the running process with kill -9 PID then restart the mysql service