Wikimedia Platform Engineering/MediaWiki Core Team/Check-ins/20140527

who: Brad, Faidon, Bryan, Aaron, Tim, Antoine, Chad, Chris, Ori, Mukunda, Greg, RobLa

Installation consolidation Library-ization of MediaWiki: http://etherpad.wikimedia.org/p/composerify Configuration management

Important stuff:

Library-ization
Authz
SUL
Performance ---
- Core-specific: instrumentation in backend and frontend.
- Scorecard for performance
- SPDY?
Some search thing…..
API

Three fronts: HHVM proper:

Two segfault bugs (third chased down by Tim to upstream bug):
- HHVM segfaults when calling Parser->callParserFunction https://bugzilla.wikimedia.org/show_bug.cgi?id=65796
- LuaSandbox segfaults under HHVM

Production environment:

Cleanup of mediawiki puppetization continues
Next up: refactor of apache module, Ori to propose on ops list later today
- Why: apache module is 2.2-specific; could not be made easily compatible with 2.4 without big changes (including moving apache-config/* to operations-puppet so the files could be templatized); when it was brought up before on the ops list everyone seemed to agree the module sucks and needs to die
- Is 2.4 really so different? -- Part of the issue is that Debian changed the file layout for Apache config files; there’s no longer an /etc/apache2/conf.d/, etc.

Packaging / release management

Faidon did a ton of packaging work: http://anonscm.debian.org/gitweb/?p=collab-maint/hhvm.git;a=shortlog
Also in touch with Paul T. and David M. about outstanding issues. Upstream is aware and willing to work with Debian to get a package out, including cherry-picking patches for a 3.1.1 release
We’re still going to use our own packages
We’ll most likely continue to use Tim’s dev branch as the target, cherry-picking fixes to issues we encounter, and then target 3.2 once it comes out in July

GeoData stuff has been fully migrated to ES, Solr’s being decom’d and servers probably going to join ES cluster.
(Chad) working on phabricator/ES integration. Broken on ES 1.x+
- https://secure.phabricator.com/T4446

Nothing new.

Bryan converted last sync-* scripts to python; deploying tomorrow in production (18:00Z)
Special:Version gitinfo caching absurdity
- https://bugzilla.wikimedia.org/show_bug.cgi?id=53972
Mukunda+Chris got OAuth work in Phabricator mostly done (!!!)
- Labs install has OAuth setup with mw.org. Test it if you’d like!
Antoine has a draft RFC on Jenkins test isolation (ask if you dare)