Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [1040] Too many connections in _registry_check_code() (line 3194 of /usr/local/www/drupal7/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [1040] Too many connections in _registry_check_code() (line 3194 of /usr/local/www/drupal7/includes/bootstrap.inc).