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Reindex all wikis
Closed, ResolvedPublic3 Estimated Story Points

Description

We have had a few changes recently that require a reindex, run the operation once everything has landed in prod:

  • T407520: Deploy various plugins to fix various things
    • T40403: Sortable search results: Needs updated search-extra plugin for analysis components. Mapping changes not yet available.
  • T407432: Follow-up DYM A/B test. Needs mediawiki >= wmf.24 for mapping updates.
  • T406205: weighted_tags: Needs mediawiki >= wmf.25 for reindex script
  • T408399: truncate near_match. Needs mediawiki >= wmf.25 for mapping change.

On the other hand, we don't want to wait forever.... but if it's not too late, there is also this:

Event Timeline

pfischer set the point value for this task to 3.Nov 3 2025, 4:20 PM

Should be ready once 1.46.0-wmf.3 is deployed, earliest would be Thursday nov 20 but probably safer to wait til the following week in case we rollback.

Mentioned in SAL (#wikimedia-operations) [2025-12-01T13:43:05Z] <dcausse> T408431: reindexing all wikis in codfw

forgot to mention that the reindex was started yesterday on the two other clusters (eqiad, cloudelastic)