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#16877 PR: Bring Solr releaseWizard improvements to Lucene
1.5 minutes ago  0 comments  0 votes  0 watches  HoustonPutman
Description I asked Claude to take the improvements made to the releaseWizard in Solr, and bring ... This is what I got after some tweaking and fixing issues it missed.Nothing crazy here, and beyond ... There were also a few tasks missing in the yaml, that I noticed while doing 10.6, and Claude had ...

#16145 PR: Delay and cap the prefetch backoff in MemorySegmentIndexInput
1.3 hours ago  49 comments  0 votes  0 watches  github-actions[bot], goankur, gsmiller, iprithv, jimczi, michaeljmarshall, mikemccand, navneet1v, neoremind, uschindler
Description MemorySegmentIndexInput.prefetch() currently uses a power-of-two back off to ... This implementation works well for files that are fully loaded into the page cache, especially ... This scheme also works okay for files that have very low cache hit rates because they rarely escape ...
    michaeljmarshall 1.3 hours ago:  Agreed, there's no need for that case to have special handling. Removed it.
    gsmiller 6.4 hours ago:  > On the N - 1 point, that's what I was thinking when I wrote this [...] Ah, I did miss that. Apologies.

#16859 PR: [Sandbox] Hash table based postings format for much faster single & batch Primary Key ID field ...
2.3 hours ago  1 comments  0 votes  0 watches  github-actions[bot], shbhar
# Summary I work in Amazon advertising, where we have some low latency use cases for exact primary ... For many types of IDs like UUIDs or ASINs which are mostly random and dont share prefixes/suffixes, ... A quick summary of results for UUID16 ids is below and full details with more ids are later.
    shbhar 1.1 days ago:  The size & complexity of this change is still iffy, so trying to make sure everything has earned ... Starting with XXHash3 64 vs existing Murmur3 128 implementation (take the first long for 64 bit ... This roughly matches benchmarks reported by XXHash project itself: https://github.com/Cyan4973/ ...

#16742 PR: Add ProactiveMergePolicy and merge selectors
3.4 hours ago  1 comments  0 votes  0 watches  HoustonPutman, costin, github-actions[bot], javanna
Introduce an experimental merge policy that wraps a stock policy and adds merges before or after it ... Issue 16701 points out that LogMergePolicy only merges a level once it has mergeFactor segments ... Changing the stock policies for either case would change merge selection for all existing users is ...
    HoustonPutman 3.4 hours ago:  Moving this to 10.7, as there hasn't been much activity on the PR as of late.

#16623 PR: Add LiveDocs.toFixedBitSet specialization in FixedBitSet.copyOf
3.5 hours ago  41 comments  0 votes  0 watches  HoustonPutman, costin, github-actions[bot], github-advanced-security[bot], javanna, michaeljmarshall, msokolov, salvatore-campagna, salvatorecampagna
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 ...
    HoustonPutman 3.5 hours ago:  Also given the additional docs to LiveDocs that there is an expectation of overwriting the ...
    HoustonPutman 3.5 hours ago:  Hey everyone here, do we think this is going to be ready for a 10.6 release in the next few days or ... It seems like we may not be close enough for 10.6

#16731 PR: Add dedup-aware HNSW format that builds the graph over distinct vectors and expands matches to all ...
7.1 hours ago  4 comments  0 votes  0 watches  Pranshu-S, github-actions[bot], kaivalnp
This PR builds the HNSW graph over a field's **distinct vectors** rather than one node per ... When many documents share the same vector, a single graph node represents them all, reducing graph ... A dedicated DedupHnswVectorsWriter / DedupHnswVectorsReader pair implements this, choosing a ...
    Pranshu-S 7.1 hours ago:  Hey @kaivalnp would love to here your thoughts on this^. Let me know what you think when you get time
    Pranshu-S 16.4 days ago:  Ran some benchmark suits, I was able to find meaningful results only when there close to 70-80% ... Even in those cases, it would make sense to just run exact KNN on the dedup than build a Hnsw Graph ... What might be good next points to explore would be IVF and tiered search similar to Vamana?

#16868 PR: Use the single-valued leaf cutter for single-valued segments in LongRangeFacetCutter
7.1 hours ago  7 comments  0 votes  0 watches  epotyom, github-actions[bot], slow-J
If DocValues.unwrapSingleton returns a segment's values, use the single-valued leaf cutter (instead ... Follow-up to 16268. It was originally part of that, but was spun off as a follow-up.
    slow-J 7.1 hours ago:  Thanks for the review Egor!
    slow-J 7.6 hours ago:  True, it reads the field directly and uses the skip index when there is one. I'll rename to assertNameMatchesValueSource.

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