Too many connections everywhere (random)

Just today getting this random errors too. Not related to any specific page on drupal.org. It seems like a general error regarding configuration of mysql??
I had some errors on my pages that sloved when adjusting mysql configuration but I'm not sure that it is the same error.

[EDIT: encountered around 11:15UTC, finally submitted now]

I'm getting these errors on just about every page, e.g.

Additional uncaught exception thrown while handling exception.
Original

PDOException: SQLSTATE[08004] [1040] Too many connections in drupal_is_denied() (line 1915 of /var/www/drupal.org/htdocs/includes/bootstrap.inc).
Additional

PDOException: SQLSTATE[08004] [1040] Too many connections in db_merge() (line 2445 of /var/www/drupal.org/htdocs/includes/database/database.inc).

on my Dashboard page

Additional uncaught exception thrown while handling exception.
Original

PDOException: SQLSTATE[08004] [1040] Too many connections in drupal_is_denied() (line 1915 of /var/www/drupal.org/htdocs/includes/bootstrap.inc).
Additional

PDOException: SQLSTATE[08004] [1040] Too many connections in dblog_watchdog() (line 147 of /var/www/drupal.org/htdocs/modules/dblog/dblog.module).

when retrieving this issue edit form,

PDOException: SQLSTATE[HY000]: General error: 1205 Lock wait timeout exceeded; try restarting transaction: DELETE FROM {views_content_cache} WHERE c1 = :c1 AND c2 = :c2; Array ( [:c1] => changed [:c2] => project_issue ) in views_content_cache_update_set() (line 137 of /var/www/drupal.org/htdocs/sites/all/modules/views_content_cache/views_content_cache.module).

when submitting it,

500 Internal Server Error

on a node/% page, etc.