Wikidata query (WDQ) is running on wikidata-wdq-mm. It uses the wikidatawiki_p replica on 10.64.37.4 to update.
Since (about-ish) last night, updates fail. WDQ connects to the database, but then soon fails with "MySQL server has gone away".
Whatever changed last night, please fix it! I can't maintain tools if the infrastructure keeps changing under my feet.