Just a quick update since it's late on a Friday. (I'll send a more
complete train summary on Monday.)
We've performed an emergency deployment of
https://gerrit.wikimedia.org/r/c/mediawiki/core/+/737153 which seems
to have fixed the outstanding issue with TOCs and language conversion,
with a more comprehensive fix planned for next week.
A huge thanks to cscott and subbu for collaborating on a patch, and to
legoktm for graciously sticking around as our SRE for the Friday
evening emergency deployment.
Kindly,
Dan (*ahem*, Your loving train conductor)
On Fri, Nov 5, 2021 at 4:11 PM Dan Duvall <dduvall(a)wikimedia.org> wrote:
Hi all,
The 1.38.0-wmf.7 train is currently deployed to all wikis albeit in a
regressive state due to UBN T295187.[1][2]
From the UBN summary: "Since yesterday, multiple users have reported
that Chinese conversion no longer functions in ToC on Chinese
Wikipedia."
A rollback to 1.38.0-wmf.6 was performed, initially to group1 before
rolling back from all wikis, before a further report that the parser
cache had already been polluted in a backwards incompatible way
causing the TOC to completely disappear from many wikis. All wikis
were again rolled forward to 1.38.0-wmf.7 to avoid the broader of the
two regressions.[2]
The train is not blocked, but cannot be safely rolled back either to
fix UBN T295187.[2] Some fine folks are already helping to resolve
this issue before the weekend, but any further assistance is
appreciated as always.
To keep up with the most current status please watch the train blocker
task in Phabricator.[1]
--
- 💕🚂🌈 - Your loving train conductor.
[1]
https://train-blockers.toolforge.org/
[2]
https://phabricator.wikimedia.org/T295187
--
Dan Duvall
Staff Software Engineer, Release Engineering
Wikimedia Foundation