https://bugzilla.wikimedia.org/show_bug.cgi?id=72228
Bug ID: 72228
Summary: At least one user is permanently unable to use
Special:RecentChanges on translatewiki.net
Product: MediaWiki
Version: unspecified
Hardware: All
OS: All
Status: NEW
Keywords: code-update-regression, hhvm, i18n, performance,
platformeng
Severity: critical
Priority: Unprioritized
Component: General/Unknown
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Blocks: 39480
Web browser: ---
Mobile Platform: ---
For several weeks now, at least one user reports to be unable to use
Special:RecentChanges on translatewiki.net, because it results in a 504 Gateway
Time-out error.
https://translatewiki.net/wiki/Thread:Support/Special:RecentChanges
This particularly affects translators, who need to know what's going on in
their language. Operating a wiki without RecentChanges is like operating a
railway station without signs for timetable or directions.
The problem was surfaced when the entire wiki was switched to hhvm, which is
set up to use a 10 seconds time out instead of the traditional 30 seconds.
Database queries are often longer than that.
Niklas was kind enough to spend some 30 min extracting some data to assess the
frequency of errors.
12.08 <+Nikerabbit> 94 200
12.08 <+Nikerabbit> 21 302
12.08 <+Nikerabbit> 17 404
12.08 <+Nikerabbit> 12 502
12.08 <+Nikerabbit> 10 499
12.08 <+Nikerabbit> 1 504
12.12 <+Nikerabbit> looking at the user agents there are at most 5 real users
who can have encountered *any kind* of error for special:rc
12.16 <+Nikerabbit> Nemo_bis: those users have encountered an issue that the
page has been failed to deliver. it does not mean that is a permanent error
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