Add updateable random scorer interface for vector index building #14181
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benwtrent
commented
Jan 29, 2025
lucene/codecs/src/java/org/apache/lucene/codecs/bitvectors/FlatBitVectorsScorer.java
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As stated by @ChrisHegarty and @msokolov the amount of garbage we create during vector index creation is pretty astounding.
This adjusts the interface to allow an "Updateable" random vector interface (@msokolov 's idea if I remember correctly) and refactors the usage to keep it threadsafe.
I still need to do some larger scale tests, I imagine the actual indexing times are not effected much.
I think I caught all the weird edge cases.