Lucas_Werkmeister_WMDE added a comment.
So the above change doesn’t work locally, and I think the reason is the database isolation level. I assumed earlier that it’s safe to delete the key from memcached after the transaction writing to `items_per_site` committed – but this assumes that the other transaction (trying to find conflicts in `items_per_site`) will `READ COMMITTED` rows. At the default `REPEATABLE READ` level, and if that transaction started before the writeback committed, the conflict won’t be seen in the database. TASK DETAIL https://phabricator.wikimedia.org/T291377 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Lucas_Werkmeister_WMDE Cc: Aklapper, hoo, Lea_Lacroix_WMDE, Mohammed_Sadat_WMDE, Lydia_Pintscher, Addshore, Lucas_Werkmeister_WMDE, Suran38, Biggs657, Invadibot, Lalamarie69, maantietaja, Juan90264, Alter-paule, Beast1978, Un1tY, Akuckartz, Hook696, Iflorez, Kent7301, alaa_wmde, joker88john, CucyNoiD, Nandana, Gaboe420, lucamauri, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, GoranSMilovanovic, QZanden, LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, Mbch331
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