Krinkle created this task. Krinkle added projects: Wikidata, Wikidata-Campsite, Sustainability (Incident Prevention). Restricted Application added a subscriber: Aklapper.
TASK DESCRIPTION Background: - T97368: Fix inefficient CacheAwarePropertyInfoStore memcached access pattern <https://phabricator.wikimedia.org/T97368> - T209343: Add APC caching to CacheAwarePropertyInfoStore <https://phabricator.wikimedia.org/T209343> In T244340#6194782 <https://phabricator.wikimedia.org/T244340#6194782>, @Krinkle wrote: > At T244340 <https://phabricator.wikimedia.org/T244340>, @Joe wrote: > >> Some keys are super hot - take for instance `WANCache:v:global:CacheAwarePropertyInfoStore:wikidatawiki:P244` which gets read about 4k times per second. > > This doesn't make sense. This particular usage pattern from Wikibase has caused outages in the past and was given an APCu layer on top. […] Given we have less than 4000 servers, it sounds like this has stopped working? TASK DETAIL https://phabricator.wikimedia.org/T254536 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Krinkle Cc: Ladsgroup, Joe, Krinkle, Aklapper, darthmon_wmde, Nandana, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, elukey, _jensen, rosalieper, Scott_WUaS, Jonas, Wikidata-bugs, aude, Lydia_Pintscher, Mbch331, Jay8g
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