dcausse removed a project: Patch-For-Review.
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To: hoo, dcausse
Cc: Lucas_Werkmeister_WMDE, Aklapper, ItamarWMDE, dcausse,
Danny_Benjafield_WMDE,
gerritbot added a project: Patch-For-Review.
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To: hoo, gerritbot
Cc: Lucas_Werkmeister_WMDE, Aklapper, ItamarWMDE, dcausse,
Danny_Benjafield_WMDE,
gerritbot added a comment.
Change #1014580 had a related patch set uploaded (by DCausse; author:
DCausse):
[mediawiki/extensions/Wikidata.org@master] updateQueryServiceLag: add an
option to tune the query rate
https://gerrit.wikimedia.org/r/1014580
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ItamarWMDE closed this task as "Resolved".
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To: hoo, ItamarWMDE
Cc: Lucas_Werkmeister_WMDE, Aklapper, ItamarWMDE, dcausse,
Danny_Benjafield_WMDE,
ItamarWMDE added a comment.
Wow! this is such an improvement of the Query lag calculation, and it greatly
reduces the complexity here. Thank you @hoo and nice find on the `topk`.
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Maintenance_bot removed a project: Patch-For-Review.
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To: hoo, Maintenance_bot
Cc: Lucas_Werkmeister_WMDE, Aklapper, ItamarWMDE, dcausse, Astuthiodit_1,
gerritbot added a comment.
Change 936052 **merged** by jenkins-bot:
[mediawiki/extensions/Wikidata.org@master] Use new Prometheus query in
updateQueryServiceLag
https://gerrit.wikimedia.org/r/936052
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gerritbot added a project: Patch-For-Review.
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To: hoo, gerritbot
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gerritbot added a comment.
Change 936052 had a related patch set uploaded (by Hoo man; author: Hoo man):
[mediawiki/extensions/Wikidata.org@master] Use new Prometheus query in
updateQueryServiceLag
https://gerrit.wikimedia.org/r/936052
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dcausse added a comment.
@hoo using `topk` sounds good to me!
I used `max` to graph the maxlag on a single timeseries in grafana but hadn't
thought about your usecase.
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hoo added a comment.
I found that I can re-write the query to use `topk` (with k=1) instead of
`max`, which should do the very same as max, except that it also returns all
original fields (please correct me if I'm wrong @dcausse):
bottomk(1, time() -
hoo added a comment.
One problem encountered while migrating the maintenance script to the new
format is, that we can no longer report which server is the most lagged.
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hoo claimed this task.
hoo moved this task from Todo/Backlog to Doing on the Wikidata Dev Team
(Sprint-∞) board.
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Lucas_Werkmeister_WMDE moved this task from Parents/Waiting to Todo/Backlog on
the Wikidata Dev Team (Sprint-∞) board.
Lucas_Werkmeister_WMDE added a comment.
Notes from task breakdown:
- At some point during development or review, someone should verify that the
updated URL returns
Michael updated the task description.
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To: Michael
Cc: Aklapper, ItamarWMDE, dcausse, Astuthiodit_1, AWesterinen, karapayneWMDE,
Invadibot, maantietaja,
karapayneWMDE moved this task from Unified prioritized backlog to Sprint-∞ on
the Wikidata Dev Team board.
karapayneWMDE edited projects, added Wikidata Dev Team (Sprint-∞); removed
Wikidata Dev Team.
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karapayneWMDE set the point value for this task to "5".
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To: karapayneWMDE
Cc: Aklapper, ItamarWMDE, dcausse, Astuthiodit_1, AWesterinen, karapayneWMDE,
Lucas_Werkmeister_WMDE updated the task description.
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To: Lucas_Werkmeister_WMDE
Cc: Aklapper, ItamarWMDE, dcausse, Astuthiodit_1, AWesterinen,
ItamarWMDE renamed this task from "[SW] Update maxlag calculation maintenance
script to reflect new prometheus queries" to "Update maxlag calculation
maintenance script to reflect new prometheus queries".
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ItamarWMDE added a comment.
Prioritzation meeting notes from parent task:
**Task Review**:
- This may produce false positive alerts when switching over data centers,
which adds overhead to an already stressful situation.
- The scope of the task for the Wikidata team is to replace
ItamarWMDE created this task.
ItamarWMDE added projects: Wikidata, Wikidata-Query-Service, Wikidata.org,
wmde-wikidata-tech, Wikidata Dev Team.
TASK DESCRIPTION
**Problem:**
In T331405: [SW] Query service maxlag calculation should exclude datacenters
that don't receive traffic and where
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