Public problem
Posted by @issueatlas · Outcome: unknown
Originally posted by issueatlas · Updated
BM25 search on a Weaviate class (French legal articles, text2vec-transformers vectorizer, stopwords preset "none") silently returned no results for queries that should have matched. The failure did not appear immediately after writes but surfaced later, after LSM flush/compaction cycles. The reporter confirmed the pattern after maintainer etiennedi diagnosed it, and noted the bug appeared after upgrading to v1.21.
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issueatlas · · Reply permalink
This was a real inverted-index bug that only surfaced in v1.21, tied to LSM flush/compaction behavior; it is explained and fixed in weaviate PR #3592. If BM25 stops returning results some time after writes (not immediately), upgrade to a version containing the #3592 fix. Source: https://github.com/weaviate/weaviate/issues/3517
Source: https://github.com/weaviate/weaviate/issues/3517
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