PetScan problem: 504 Gateway Time-out
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	M2k_dewiki
	Apr 30 2020, 8:07 PM

Description

The tool PetScan

http://petscan.wmflabs.org

which is very useful for

creating new Wikidata objects for unconnected items or
adding statements to existing Wikidata objects

for example, returns a "504 Gateway Time-out" since 8th of April.

It has been working again in between several times, but failed again every time after a short period.

Also see

Is it possible to check/restart, ... this tool?

Thanks a lot!

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Mentioned In: T264758: PetScan returns "502 Bad Gateway" for some days
Mentioned Here: T215035: 502 /504 Bad Gateway issue on Petscan

Event Timeline

M2k_dewiki created this task.Apr 30 2020, 8:07 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptApr 30 2020, 8:07 PM

Reedy added a project: Cloud-VPS.Apr 30 2020, 8:31 PM

Mentioned in SAL (#wikimedia-cloud) [2020-04-30T21:03:39Z] <bd808> Killed apparently hung process on petscan4.petscan.eqiad.wmflabs (T251567)

Mentioned in SAL (#wikimedia-cloud) [2020-04-30T21:04:33Z] <bd808> Started a screen as magnus and then ~magnus/petscan/run.sh inside it (T251567)

Restarted after @Framawiki asked on IRC.

Framawiki added a subscriber: Magnus.Apr 30 2020, 9:29 PM

Thanks a lot, but at the moment, it seems, that the tool is not responding at all. Could you please check again?

To test, it should return a list of articles, for example for the following queries:

http://petscan.wmflabs.org/?language=de&project=wikipedia&categories=Wikipedia:Artikel%20ohne%20Wikidata-Datenobjekt%0D%0A&negcats=Wikipedia%3AL%C3%B6schkandidat&combination=union&ns%5B0%5D=1&show_redirects=no&wikidata_item=without&interface_language=en&&doit=

http://petscan.wmflabs.org/?language=de&project=wikipedia&categories=Frau%7C10&combination=union&negcats=Wikipedia%3AL%C3%B6schkandidat&ns%5B0%5D=1&show_redirects=no&wikidata_item=without&interface_language=en&al_commands=P31%3AQ5%0AP21%3AQ6581072&doit=

http://petscan.wmflabs.org/?language=de&project=wikipedia&depth=10&categories=Schweizer%0D%0APerson%20nach%20Geschlecht%7C1&ns%5B0%5D=1&show_redirects=no&common_wiki=wikidata&wikidata_item=with&wikidata_label_language=de&wikidata_prop_item_use=P27&wpiu=none&interface_language=en&doit=&al_commands=P27%3AQ39

https://grafana-labs.wikimedia.org/d/000000018/labs-project-board?orgId=1&from=1588267375778&to=1588288975779&var-project=petscan&var-server=All

Soon after the restart, the cpu usage on petscan4 (which handles the frontend webservice) stepped back up to 100%, where it's been sitting for the better part of the last 3-4 days. Unfortunately, it looks like this will take intervention from Magnus to resolve.

Also see

https://phabricator.wikimedia.org/T215035

Aklapper closed this task as a duplicate of T215035: 502 /504 Bad Gateway issue on Petscan.May 1 2020, 9:17 AM

MB-one subscribed.May 2 2020, 10:47 AM

Man77 subscribed.May 10 2020, 7:05 PM

Adithyak1997 updated the task description. (Show Details)May 27 2020, 5:23 PM

Restarted it now.
I am also working on a watcher script to restart it automatically when it goes down.

M2k_dewiki mentioned this in T264758: PetScan returns "502 Bad Gateway" for some days.Oct 6 2020, 2:33 PM

PetScan problem: 504 Gateway Time-outClosed, DuplicatePublicActions

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PetScan problem: 504 Gateway Time-out
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