Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) in _registry_check_code() (line 3165 of /home/trucks/public_html/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) in dblog_watchdog() (line 147 of /home/trucks/public_html/modules/dblog/dblog.module).