Wikimedia Platform Engineering/MediaWiki Core Team/Check-ins/20140106

who: Brad, Nik, Bryan, Sumana, Ori, Chris, Greg, Aaron, Chad, Antoine

Made cirrus primary for itwiki, wikidata, frwikisource, and all wikivoyages
- 10x-15x increase in search traffic
- Higher load than we’d like (http://ganglia.wikimedia.org/latest/?c=Elasticsearch%20cluster%20eqiad&m=cpu_report&r=hour&s=by%20name&hc=4&mc=2)
  - Caused by aggressive configuration on our glorious suggester. Deploying less aggressive configuration.
Made cirrus secondary on dewiki and all wikibooks. Building now.
Made cirrus BetaFeature on more large wikis (frwiki, eswiki, ruwiki, and ptwiki)
Grabbing more small wikis Wednesday
enwiki as secondary next Monday unless Chad or Nik decide that is a bad idea this week.

Bryan has a Puppet module for Kibana (LogStash UI), now! Vetted by Antoine and Mark.
Ori is a jerk and has not merged Bryan’s Puppet commits for LogStash yet, but will do so today (or at Bryan’s earliest convenience).
Graphite is actually, really, totally migrated to tungsten in EQIAD. Now iterating on the setup to make improvements. Pairing with Faidon on this and tracking here: <https://etherpad.wikimedia.org/p/GraphiteTODO>
Scap: one more thing Aaron to get to before writing announce email.

Added RunningStat (Ifedda276d) and MessagePack serialization (Id2833c5a9) to core.
Used by new Profiler implementation (I688e7231d). Gains: very efficient binary serialization. Data can be summarized in stages without fidelity. Measures variance and extrema (min / max) in addition to arithmetic mean and call count.
Domas agreed to Apache license for Mwprof, yay.
HHVM role in MediaWiki-Vagrant getting patches!
Submitted Tim’s xhprof calibration fix to HHVM: https://github.com/facebook/hhvm/pull/1488

(ori: please paste gerrit url so the lazy one can just click :D )

l10n-bot blacklisted from Zuul, would no more trigger jobs. Caused slowness during peak hours.
New Zuul tomorrow european morning. Half an hour window.
flow-charting hates Freedom, or vice versa