Michael created this task.
Michael added projects: Wikimedia-production-error, Wikidata,
Wikidata-Query-Service, Discovery-Search (Current work).
Restricted Application added a subscriber: Aklapper.
TASK DESCRIPTION
Error
-----
`MediaWiki version:` **`1.36.0-wmf.9`**
name=message
WikidataOrg\QueryServiceLag\WikimediaPrometheusQueryServiceLagProvider::getLags:
unexpected result from Prometheus API
http://prometheus.svc.eqiad.wmnet/ops/api/v1/query?query=blazegraph_lastupdated
name=cli_argv
/srv/mediawiki-staging/multiversion/MWScript.php
extensions/Wikidata.org/maintenance/updateQueryServiceLag.php --wiki
wikidatawiki --cluster wdqs --prometheus prometheus.svc.eqiad.wmnet
--prometheus prometheus.svc.codfw.wmnet
Impact
------
- There seems to be a very consistent warning (every 30 seconds) from some
Prometheus API for requesting some blazegraph/WDQS lag:
https://logstash.wikimedia.org/goto/9d2f816a8e0a38514b3e8e4d794eddc2
F32361061: Image Pasted at 2020-9-23 18-46.png
<https://phabricator.wikimedia.org/F32361061>
Notes
-----
- It started last Friday (2020-09-18)
- tagging also #discovery-search-sprint
<https://phabricator.wikimedia.org/tag/discovery-search-sprint/> as there seems
to be some work happening on WDQS/Blazegraph in that context as well
- I cant see anything out of the ordinary on the WDQS grafana board
<https://grafana.wikimedia.org/d/000000489/wikidata-query-service?orgId=1&from=now-7d&to=now&refresh=1m>,
except that there seems to have been a jump in the load of one of the servers
in the evening of the 17th. But that might be unrelated: F32361085: image.png
<https://phabricator.wikimedia.org/F32361085>
TASK DETAIL
https://phabricator.wikimedia.org/T263670
EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: Michael
Cc: Aklapper, Addshore, Pablo-WMDE, Lydia_Pintscher, Michael, CBogen,
Akuckartz, darthmon_wmde, Nandana, Namenlos314, Lahi, Gq86,
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst,
LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll,
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Jdforrester-WMF,
Mbch331, Rxy, Jay8g, Krenair
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