API query times out
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	Magog_the_Ogre
	Oct 9 2019, 12:53 AM

Description

A specific API query that my bot is trying to run is timing out. I've tried to run about 15 times and it reliably times out every time.

https://commons.wikimedia.org/w/api.php?list=allimages&ailimit=max&action=query&continue=-||&aistart=20191007000000&aiend=20191007235959&aisort=timestamp&aidir=newer&aiprop=user|sha1|size|dimensions|mime|timestamp|comment|metadata&aicontinue=20191007083149|Stift_Klosterneuburg_A3.jpg&format=php&servedby=&requestid=1141644342

A sample response:

Request from [redacted] via cp1079 cp1079, Varnish XID 918790924

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Event Timeline

Magog_the_Ogre created this task.Oct 9 2019, 12:53 AM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptOct 9 2019, 12:53 AM

Note: if you run this query as a normal user, it will succeed. It only fails when logged in as a bot or administrator with the higher limits.

Reedy added projects: MediaWiki-Action-API, Performance Issue.Oct 9 2019, 12:54 AM

Restricted Application added a project: Platform Engineering. · View Herald TranscriptOct 9 2019, 12:54 AM

I see only four log entries for this request (specifically, for requests containing "Stift_Klosterneuburg_A3" in the URI) in the past 24 hours. Two indicate the same error as in T187759: API is returning 500 status code. One indicates that the query was being slow to execute. And one seems to be indicating that a 500 response was returned.

It's possible that for the other attempts the "too slow to execute" happened before it got to the point of exceeding memory usage, although I'd expect to see log entries for all those too.

Masumrezarock100 added a subscriber: Masumrezarock100.Oct 12 2019, 4:24 AM

daniel triaged this task as Low priority.Oct 15 2019, 8:29 PM

daniel edited projects, added Platform Team Workboards (Clinic Duty Team); removed Platform Engineering.

WDoranWMF moved this task from Inbox to Backlog on the Platform Team Workboards (Clinic Duty Team) board.Oct 31 2019, 8:55 PM

• AMooney added a project: Platform Engineering (Icebox).Mar 13 2020, 1:24 PM

CCicalese_WMF removed a project: Platform Team Workboards (Clinic Duty Team).Mar 13 2020, 1:32 PM

Aklapper removed a subscriber: Anomie.Oct 16 2020, 5:02 PM