Michael added a comment.
In T277862#7484894 <https://phabricator.wikimedia.org/T277862#7484894>, @Ladsgroup wrote: > xhgui for beta sounds lovely, I don't know how it can be implemented. It might be quite a bit of work. You can look at server-side logs in beta cluster https://wikitech.wikimedia.org/wiki/Nova_Resource:Deployment-prep/Log_Files Thanks, I looked at the logs and couldn't find any entries that would seem related. > And if it's an issue in databases or replication, you can look at binlogs. Mh, creating a Lexeme via the API is //much// slower than creating it through the Special page. I think, if the DB would be the cause, I would expect them to be equally slow? > If arclamp works in beta cluster, we can possibly look at flamegraphs as well. Sure, that would certainly be helpful. If that data were to exist, where would I find it? It doesn't seem to be at https://performance.wikimedia.org/arclamp/logs/daily/ My current favorite speculation is that on beta something like AbuseFilter sits in front of the Api requests via some hook and takes a long time, but doesn't affect Special pages. There are a bunch of extensions that are enabled on beta, but not on test wikidata: - ChessBrowser - PageAssessments - StopForumSpam - RelatedArticles - Dashiki - IPInfo - Newsletter - ORES - Popups - TheWikipediaLibrary Anything that rings a bell as a possible cause? I would speculate that maybe PageAssessments or StopForumSpam could have some hooks to look at page creations via the API or something? TASK DETAIL https://phabricator.wikimedia.org/T277862 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Michael Cc: noarave, Pablo-WMDE, toan, Sahilgrewalhere, Lucas_Werkmeister_WMDE, zeljkofilipin, WMDE-leszek, Michael, Ladsgroup, Tarrow, hoo, Addshore, 786, Suran38, Biggs657, Invadibot, Lalamarie69, maantietaja, Juan90264, Alter-paule, Hazizibinmahdi, Beast1978, Un1tY, Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, GoranSMilovanovic, Mahir256, QZanden, LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Bodhisattwa, Scott_WUaS, Wikidata-bugs, aude, Lydia_Pintscher, Mbch331
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