Many pages do not appear in typeahead search results (autocomplete / search suggestions).
For example: https://en.wikipedia.org/w/rest.php/v1/search/title?q=Kirby+and+the+Forgotten+Lan&limit=10 should return https://en.wikipedia.org/wiki/Kirby_and_the_Forgotten_Land as one of the results, but it returns nothing.
(Reported at https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical)#c-QuicoleJR-20250507171200-Issues_with_the_search_bar)
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | BUG REPORT | dcausse | T393635 Dated elections no longer top results in search preview on en.wikipedia | ||
| Resolved | BUG REPORT | dcausse | T393662 Wikipedia lacks some search results in search suggestions | ||
| Resolved | BUG REPORT | dcausse | T393660 Adding a link to another article does not suggest articles whose names are similar to the text being linked but instead suggests unrelated topics | ||
| Resolved | dcausse | T393663 Many pages do not appear in typeahead search results (autocomplete / search suggestions) |
I think all of these bug reports I found have this as the root cause. This seems like a problem with severe impact.
Apologies about this, as part of T388610: Migrate production Elastic clusters to Opensearch (CirrusSearch backend infrastructure) we disabled some updates, some transition took longer than we expected. I routed the search traffic to codfw which should have fresh indices. The example query mentioned in the description now returns results.
Thanks to @Thesavagenorwegian , @matmarex and everyone else who reported this issue. I've opened an incident report here . If there are any missing or incorrect details, please respond here and we'll work on updating the report.