These changes were completed the week of October 9th and deployed the following week. The re-indexing of the affected wikis was completed a few hours ago and should be live everywhere now.
The list of affected languages is on the Phab ticket T177871[1] and a list by wiki is on that page in a comment.[2] For more details, see the write up on MediaWiki.[3] [1] https://phabricator.wikimedia.org/T177871 [2] https://phabricator.wikimedia.org/T177871#3702836 [3] https://www.mediawiki.org/wiki/Wikimedia_Discovery/ Disabling_Messaging_Fallbacks_for_Language_Analysis Trey Jones Sr. Software Engineer, Search Platform Wikimedia Foundation On Tue, Sep 26, 2017 at 12:12 PM, Trey Jones <[email protected]> wrote: > SUMMARY: The Search Platform team (formerly part of Discovery) is planning > to fix a long-standing search bug on many wiki projects by disabling the > code in CirrusSearch that re-uses the “fallback” languages (which are > specified for user interface or system messages) for the language analysis > modules (which are used to index words in search). Deployment is planned to > start the week of October 9, 2017. > > Messaging fallbacks specify what language to show a message in when there > is no message available in the language of a given wiki. A language > analysis module is language-specific software that processes text to > improve searching—so that, for example, searching for a given word will > find related forms of that word, like "hope, hopes, hoping, hoped" or > "resume, resumé, résumé" on English-language wikis. > > Fallback languages for system messages make sense for historical and > cultural reasons—a reader of the Chechen Wikipedia is more likely to > understand a user interface or system message in Russian than in French, > Greek, Hindi, Italian, or Japanese—but the fallbacks don't necessarily make > any linguistic sense. Chechen and Russian, for example, are from unrelated > language families; while the languages have undoubtedly influenced one > another, their grammars are completed different. > > We will deploy the software change that disables using messaging fallbacks > for language analysis fallbacks in about two weeks (targeting the week of > October 9, 2017), with any cross-language analysis exceptions explicitly > configured in a new manner. Changes will not immediately happen to all > affected wikis because each wiki in each language will need to be > re-indexed, which is a separate process that takes time. There may also be > other delays caused by Elasticsearch upgrades or other changes that need > immediate attention. > > You can also track progress of the tasks on Phabricator[1] or read more, > see examples, and get the full list of languages affected on MediaWiki.[2] > > [1] https://phabricator.wikimedia.org/T147959 > > [2] https://www.mediawiki.org/wiki/Wikimedia_Discovery/ > Disabling_Messaging_Fallbacks_for_Language_Analysis > > Trey Jones > Sr. Software Engineer, Search Platform > Wikimedia Foundation >
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