error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'

http://stackoverflow.com/questions/11990708/error-cant-connect-to-local-mysql-server-through-socket-var-run-mysqld-mysq

1. pkill -9 mysqld

2. rm -f /var/run/mysqld/mysqld.pid

3. chmod 777 '/var/run/mysqld/mysqld.sock

done