Can't connect to local MySQL server through socket '/var/lib

[rani+bandaru]

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

Error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' ([..]
Comment: Please contact your admin
Bug Report:
Traceback: ERROR: OTRS-CGI-10 Perl: 5.8.8 OS: linux Time: Thu Oct 7 13:37:09 2010

Message: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (13)

Traceback (17763):
Module: Kernel::System::DB::new (v1.105.2.1) Line: 188
Module: Kernel::System::Web::InterfaceAgent::Run (v1.43.2.1) Line: 143
Module: /opt/otrs/bin/cgi-bin/index.pl (v1.88) Line: 48


I have done many things by searching google But same problem is coming what to do?Someone PlZ help me to solve this?
Mine 2.4.7 version

[crythias]

Kindly start asking these questions in the appropriate forum (Help, Errors).

Also, mysql isn't running, it crashed, or it isn't configured to listen on sockets.