Search Platform/Weekly Updates/2025-03-14

WE 2.5.1 - Country-level inference model for translation suggestions

• T386068 Implement articlecountry a new CirrusSearch keyword

Language Stuff: Kuromoji/Sudachi

Analysis is completed. We will enable Sudachi for Japanese once the migration to OpenSearch is completed. Full write up on https://www.mediawiki.org/wiki/User:TJones_(WMF)/Notes/Japan_Eset_OK_en_I_Zat_Ion%E2%80%94Kuromoji,_ICU,_and_Sudachi

• T318269 Test and analyze Kuromoji & Sudachi Japanese language analyzers

Elasticsearch -> OpenSearch migration

• T388595 Release new deb from opensearch plugins repository
• T386870 Regression Test OpenSearch Language Analysis OpenSearch Regression Testing: I ran Elastic baseline analyses for wiki samples in ~100 languages. I've got OpenSearch running locally—thanks Gabriele! I'm running diffs against my ES baselines now. I don't have Sudachi installed—in part as a sanity check.. there should be diffs in my Japanese sample until I get it installed.

Misc / Operations

• T386935 Scale up the SUP
• T387176 Investigate eqiad Elastic cluster latency (some additionnal follow up work still needs to be dne by the SRE team)