jcrespo added a comment.
@JanZerebecki - our max_connections is very high: 10000 simultaneous connections- because we use connection pooling at server side. We almost never reach that- mediawiki servers get saturated first; what fails is the connection timeout, which is set to 3 seconds (when normally, it should take a few micro or miliseconds), which means it took the local node more than 3 seconds just to establish a mysql connection. The direct cause is usually having too many open connections, which slows down the whole connection handling. TASK DETAIL https://phabricator.wikimedia.org/T136598 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: hoo, jcrespo Cc: gerritbot, JanZerebecki, hoo, aude, Aklapper, jcrespo, Zppix, Lewizho99, Minhnv-2809, Volans, Maathavan, D3r1ck01, Izno, Luke081515, Wikidata-bugs, Mbch331, Jay8g, Krenair _______________________________________________ Wikidata-bugs mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
