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[Regression 1.27.0-wmf1] Posting Flow topics / replies incredibly slow on testwiki
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Description

It just took 22 seconds for the API request to complete to post a new topic on testwiki, and also 22 seconds to post a reply. @Etonkovidova reported getting timeouts at 30 seconds.

Event Timeline

Catrope created this task.Sep 29 2015, 8:44 PM
Catrope raised the priority of this task from to Unbreak Now!.
Catrope updated the task description. (Show Details)
Catrope added subscribers: Catrope, Etonkovidova.
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 29 2015, 8:44 PM
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Catrope renamed this task from [Regression 1.27.0-wmf1] Posting Flow topics / replies incredibly slow to [Regression 1.27.0-wmf1] Posting Flow topics / replies incredibly slow on testwiki.Sep 29 2015, 8:51 PM

Happens both logged in and logged out. Read API requests to Flow topics like https://test.wikipedia.org/w/api.php?action=flow&submodule=view-topic-history&page=Topic:Spurbjt59b0sypf1&vthformat=wikitext are also slow, also around 22s. mediawiki.org is not affected, but it hasn't been updated to wmf1 yet.

Catrope closed this task as Invalid.Sep 30 2015, 12:05 AM
Catrope claimed this task.

Seems to have gone away mysteriously on testwiki, and isn't happening on mediawikiwiki now that wmf1 has rolled out there.

jeblad added a subscriber: jeblad.Jun 17 2016, 6:53 PM

Sometimes, it seems like loading both loading the topics and edit interface on nowiki is awfully slow. I have not timed it, so I don't know how slow it really is. I would guess it is about half a minute. It is somewhat hisenbug-like.

Reopen the bug?

Restricted Application added a subscriber: TerraCodes. · View Herald TranscriptJun 17 2016, 6:53 PM

@jeblad Can you please give specific pages that load slow? Yesterday it was noticeably slower than usual on testwiki but not too slow.
I was checking today testwiki and nowiki and it seemed that pages successfully load between 3.07s to 1.35 s ; posting Replies on Flow board or opening for Edit is also normal.

And for the issue, it's better to open a new bug for Regression on 1.28.0-wmf.6 with the tag Performance.