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#16243 PR: StableTfl Similarity
5.1 minutes ago  3 comments  0 votes  0 watches  github-actions[bot], mccullocht, nik9000, txwei
Description <!-- If this is your first contribution to Lucene, please make sure you have reviewed the ... https://github.com/apache/lucene/blob/main/CONTRIBUTING.md --> Adds StableTflSimilarity, a new ...
    mccullocht 5.1 minutes ago:  Overall LGTM. Please resolve the conflict in CHANGES. Would you like this to be backported into the Lucene 10 branch or should this be left for 11?
    mccullocht 8.8 minutes ago:  afaict isFinite() returns false if the value is NaN, so you may want to change the comment and the ...

#16128 PR: Promote PerThreadPKLookup to core as PrimaryKeyLookup
6.3 minutes ago  15 comments  0 votes  0 watches  epotyom, github-actions[bot], shubhamsrkdev
Description - Promoted PerThreadPKLookup to core as PrimaryKeyLookup (and deprecated ...
    shubhamsrkdev 8 days ago:  Gentle reminder - if anyone can help merge this it would be great, TIA!
    shubhamsrkdev 25 days ago:  Thanks for the review @epotyom ! If this looks ready can anyone help merge (or review) it? TIA!

#16306 PR: Reduce lock contention in UsageTrackingQueryCachingPolicy
1.8 hours ago  0 comments  0 votes  0 watches  github-actions[bot], prudhvigodithi
Description After split LRUQueryCache into 16 partitions with separate locks, concurrent cache ... UsageTrackingQueryCachingPolicy still does, every onUse() and frequency() call funnels through one ... This PR replaces the single FrequencyTrackingRingBuffer field with 16 independent ring buffers, ...

#16247 PR: Introduce CachingCollectorManager to parallelize search when using CachingCollector
3.2 hours ago  51 comments  0 votes  0 watches  gaobinlong, github-actions[bot], javanna
Description This PR introduces CachingCollectorManager, switches GroupingSearch to use search ... In addition, remove experimental GroupingSearch constructor that takes a GroupSelector as argument ... Relates to https://github.com/apache/lucene/issues/12892.
    javanna 6.7 hours ago:  last remarks. LGTM otherwise
    javanna 6.7 hours ago:  when we exit early in this scenario, matchingGroups and matchingGroupHeads are not set. I suspect this will cause NPEs down the line for users relying on those two being always non-null.

#16091 PR: Replace deprecated search(Query, Collector) with CollectorManager in JoinUtil
3.6 hours ago  10 comments  0 votes  0 watches  jainankitk, javanna
For the ScoreMode.None + no min/max path, replace the deprecated IndexSearchersearch(Query, ... This also enables true parallel collection when the searcher has an executor. Switch testSimpleOrdinalsJoin and testOrdinalsJoinExplainNoMatches to use newSearcher() so the ...
    javanna 15.1 days ago:  Going back to this conversation. On the memory per slice: The current design allocates one LongBitSet(segmentValueCount) per ... With intra-segment partitioning, a segment split into K slices → K collectors → K separate ...
    javanna 26.3 days ago:  I am not sure either, there's a fine balance between the main purpose of this PR (removing ... I am also not deeply familiar with the join module.

#16292 PR: Introduce TermGroupFacetCollectorManager for concurrent grouped faceting
3.6 hours ago  2 comments  0 votes  0 watches  javanna
The old TermGroupFacetCollector could not be adapted to CollectorManager: its cross-segment ... At doSetNextReader(), all previously seen (group, facet) pairs were re-looked up in each new ... That O(pairs × segments) walk cannot be split across concurrent slices, and every unique hit ...
    javanna 6.4 days ago:  This is temporarily duplicated: same code is also in within the now deprecated GroupFacetCollector. The idea is to backport this change cleanly to 10.x, then remove the deprecated classes from main.

#12892: Remove all deprecated IndexSearcher#search(Query, Collector) usage / methods in the next major ...
4.5 hours ago  5 comments  0 votes  0 watches  gaobinlong, github-project-automation[bot], gsmiller, javanna, msfroh, romseygeek, sgup432, vijaykriishna, zacharymorn
Description As a follow-up of https://github.com/apache/lucene/issues/11041, we would like to ... A list of the leftover usages follows:- [x] facet: FacetsCollector (ongoing discussion at #13725, ...
    gsmiller 1.8 years ago:  Note that we added a factory method in CollectorManager that might make these migration tasks a ... See CollectorManagerforSequentialExecution (and thanks to @romseygeek for the idea!). EDIT: After more consideration, this is probably too trappy for users and is likely getting removed ...
    msfroh 1.8 years ago:  Opened https://github.com/apache/lucene/pull/13747 for join/join.test.

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