Discovery/Status updates/2017-01-30

This is the weekly update for the week starting 2017-01-30

Highlights

Our wikis now implement the Open Graph standard, so sharing links on social media now include the appropriate imagery. Thanks to Ladsgroup for this work! (T142048)
For those interested in how we test changes to search, there's now a page on Testing Search.
Requested more text to be translated on the wikipedia.org portal page via translatewiki.
"Hiring a data scientist", a post on Wikimedia Blog that provides an in-depth look into Discovery's hiring process for the Analysis team.

Work continues to upgrade to Elasticsearch 5 (T155671, T151224)
A lot of work on TextCat (language identification) has been deployed (T149324); configuration to enable it in production should go out next week.
Added document content model into the search index (T156371) and contentmodel: keyword.
Added more aliases for filetype: keyword (task T156413).
Nearly done with getting things ready for a new A/B test to be launched on a few wikipedias for sister project search results
Fixed a timeout issue with advanced searches (T152895, T134157) (not yet deployed, will be deployed with Elasticsearch 5 upgrade)
Delayed updates from previous weeks:
- Created a list of languages for which we want to investigate analysers (T155549)
- After analysis, decided to use Stempel as our new Polish language analyser (T154516); analysis of Stempel is underway (T154517)
- Fixed issue with ICU folding that caused problems with the search index (T156234)

Wrapping up migrating a significant amount of data using the ReportUpdater infrastructure - almost done! Updating dashboards now to use the new datasets, including NEW datasets (like LDF endpoint usage for WDQS)

Added new text to translatewiki for wikipedia.org portal page for app links and legal language in footer

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