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EXPLAIN is broken because new analytics wiki replica cluster contains multiple servers
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Description

Since T195836: Cannot reliably get the EXPLAIN for a query on analytics wiki replica cluster it's not possible to directly get the EXPLAIN for a query on analytics wiki replica cluster since multiple servers are handling requests and it's not possible to choose on which one the EXPLAIN need to be executed.

Details

Related Gerrit Patches:

Event Timeline

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 23 2018, 10:15 AM
Framawiki moved this task from Backlog to Bugs on the Quarry board.Oct 21 2018, 6:58 PM

Change 462286 had a related patch set uploaded (by Framawiki; owner: Framawiki):
[analytics/quarry/web@master] EXPLAIN needs to be executed on the good server

https://gerrit.wikimedia.org/r/462286

Change 543923 had a related patch set uploaded (by Framawiki; owner: Framawiki):
[analytics/quarry/web@master] query-status.html: hide Explain button until bug is solved

https://gerrit.wikimedia.org/r/543923

Change 543923 merged by jenkins-bot:
[analytics/quarry/web@master] query-status.html: hide Explain button until bug is solved

https://gerrit.wikimedia.org/r/543923

Mentioned in SAL (#wikimedia-cloud) [2019-10-19T15:18:27Z] <wm-bot> framawiki: Deployed 1f297c9 on -web-01 T205214 (query-status.html: hide Explain button until bug is solved)