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
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
原文：http://www.cnblogs.com/bushe/p/4487250.html