As discussed earlier this week, we plan to use a SWAT deploy on Monday the 18th to stop this test for now, now that the planned two weeks are complete.
Description
Details
Project | Branch | Lines +/- | Subject | |
---|---|---|---|---|
operations/mediawiki-config | master | +3 -8 | pagePreviews: Stop A/B test on enwiki and dewiki |
Related Objects
Event Timeline
@Tbayer, @phuedx - are we sure we're ready for this given what we've seen in T175918: EventLogging subscriber module in ready state but not sending tracked events - or is Firefox safe from that bug? (in which case, let's go ahead as planned)
Change 378686 had a related patch set uploaded (by Phuedx; owner: Phuedx):
[operations/mediawiki-config@master] pagePreviews: Stop A/B test on enwiki and dewiki
Change 378686 merged by jenkins-bot:
[operations/mediawiki-config@master] pagePreviews: Stop A/B test on enwiki and dewiki
Mentioned in SAL (#wikimedia-operations) [2017-09-18T13:18:52Z] <hashar@tin> Synchronized wmf-config/InitialiseSettings.php: pagePreviews: Stop A/B test on enwiki and dewiki - T176068 (duration: 00m 45s)
I can confirm that:
- The A/B test is no longer running on dewiki and enwiki.
- The Page Previews beta feature has been enabled on dewiki and enwiki.
- The Page Previews EventLogging instrumentation has been disabled on all wikis.
Given the additional strain that we've put on the EventLogging pipeline during the last two weeks (a peak rate of 19.32K events/min!!1), I felt that we stop logging events at the pre-agreed time. If we conclude that T175918: EventLogging subscriber module in ready state but not sending tracked events has impacted the data that we've collected, then we should re-run the A/B test with a fix in place.