Lucene: Status=Open

github-actions[bot] 32.7 minutes ago:	This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
Pulkitg64 14.2 days ago:	@shubhamvishu I was wondering if we need to rebase changes of this PR to include FP16 support as ... Happy to add a separate task as well here #16725 once this PR is merged if you think this can go ...

#16663 PR: Allocate MemoryAccountingBitsetCollector bitset lazily on first match

33 minutes ago 2 comments 0 votes 0 watches Sasilekha, gaobinlong, github-actions[bot], javanna

MemoryAccountingBitsetCollector used to reserve a bitset large enough for the entire leaf upfront, ... Under intra segment concurrency (where each partition worker gets its own collector), unmatched ... This PR delays the allocation until the first match, so collectors that see no matches allocate ...

github-actions[bot] 33 minutes ago:	This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
Sasilekha 14.2 days ago:	Gentle ping @javanna @gaobinlong this is the follow-up to #16452. Would appreciate a look when you have a moment. Happy to iterate on anything.

#16666 PR: Iouring rerank reads for larger-than-RAM KNN search

33 minutes ago 1 comments 0 votes 0 watches 190, 230, 250, github-actions[bot], goankur

**(Implemented using AI with humans in the loop** Summary This revision replaces the earlier ... It adds no new API. IoUringUncachedDirectory (sandbox) serves reads of the full-precision vector file (.vec) through ...

github-actions[bot] 9 days ago:

This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!

#16688 PR: Fix minor typos in queryparser/classic package-info javadoc

33 minutes ago 3 comments 0 votes 0 watches github-actions[bot], hikmetba-bit, msokolov

Three grammatical typos in lucene/queryparser/src/java/org/apache/lucene/queryparser/classic/ ... Verified all three are still present, byte-for-byte, on the current default branch before making ... Closes 8784 🤖 Generated with Claude Code

github-actions[bot] 33 minutes ago:	This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
msokolov 14.2 days ago:	It's still not really idiomatic, at least to my ear. Can we change it to "Lucene supports finding words which are within a specific distance"? "Within ... away" is not really a standard construction

#16771 PR: Page-align vector data for all encodings

1.4 hours ago 7 comments 0 votes 0 watches CH-Abhinav, Pulkitg64, github-actions[bot], goankur, kaivalnp

**(Implemented using AI with human in the loop)** Description Fast-follow to 16705. Rescoring with full-precision vectors reads one whole vector per candidate. A 1024-dim float32 vector is exactly 4096 bytes, but Lucene99FlatVectorsWriter aligns the vector ...

goankur 3.3 days ago:	Folks, can a second pair of eyes take a look and merge it if there are no objections ? I'd really like this to be part of 11.0 release if its not too late.
goankur 5.3 days ago:	Thanks @kaivalnp. Agreed, main does not rescore from bytes today, so for BYTE the padding only helps when HNSW reads ... Byte rescoring is planned.

#16806 PR: Speed up HNSW merges by clearing only the visited bits

1.4 hours ago 0 comments 0 votes 0 watches github-actions[bot], goankur

**(Implemented using AI with human in the loop)** Problem Before each search, ... The graph builders use a FixedBitSet sized to the graph, so each clear writes numNodes / 8 bytes. A builder searches once per level of each inserted node.

#16623 PR: Add LiveDocs.toFixedBitSet specialization in FixedBitSet.copyOf

4.3 hours ago 31 comments 0 votes 0 watches costin, github-actions[bot], github-advanced-security[bot], javanna, michaeljmarshall, msokolov, salvatore-campagna

After LiveDocs interface was introduced in 15413, FixedBitSet.copyOf fell to per-bit loop execution ... This PR addresses that by introducing a toFixedBitSet() method on LiveDocs and a dedicated check in ... Since there are only two implementations of LiveDocs, both final, the dispatch is bimorphic and ...

costin 4.3 hours ago:	@msokolov, thanks for looking at this. The PR improves the cost of applying deletes and opening soft-deletes readers on segments whose ... Salvatore first ran into this on a write-heavy workload, where the first delete after a reader ...
msokolov 14.5 hours ago:	It would be great to understand what the high-level impact of this change would be. The microbenchmarks look great, but does it impact query performance in some way? Can you run luceneutil's standard tests and report on that?

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