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#15668: WeightedSpanTermExtractor is fragile to modern query rewrites due to DelegatingLeafReader ...
1.6 hours ago  0 comments  0 votes  0 watches  sjs004
Description The PlainHighlighter via WeightedSpanTermExtractor.javaL447 is prone to crashing when ... This happens because the internal DelegatingLeafReader used for highlighting throws UnsupportedOpera ... **The Recurrent Issue** As Lucene adds more optimizations to query rewrite() methods (e.g., ...

#15662: Lucene nightly benchmark regression on 29/01
4.7 hours ago  19 comments  0 votes  0 watches  benwtrent, mikemccand, msokolov, scampi, shubhamsrkdev, stefanvodita, uschindler
Description We are seeing regressions on lucene nightly benchmarks on 29/01 The set of commits ... We should find the root cause of the regression. Version and environment details_No response_
    uschindler 4.7 hours ago:  It is good that you get no PCIe bus errors when accessing NVME! When switching the Policeman Jenkins machine last year, the board had a problem and produced PCIe ... This caused NVME throughput to go down into the MB/sec scale.
    mikemccand 8.5 hours ago:  Here's dmesg.txt from the latest boot (to newest kernel, at least as of ~ one week ago). These are the MCE ECC bit flip detection + correction entries: ` [ 988.117825] [Hardware Error]: ... Error Code: 0 [ 988.117844] EDAC MC0: 1 CE on mc#0csrow#3channel4 (csrow:3 channel:4 page:0x16f7d3 ...

#15659 PR: Avoid unnecessary DisjunctionMaxBulkScorer overhead
8.8 hours ago  10 comments  0 votes  0 watches  github-actions[bot], jpountz, shimpeko, uschindler
This change inspects clause bulk scorers up front and only uses DisjunctionMaxBulkScorer if at ... Otherwise, we fall back to the scorer-based path. c88f9334e5c99abbeb4f233f9606873e5037c118 made DisjunctionMaxQuery use DisjunctionMaxBulkScorer when ...
    shimpeko 9.2 hours ago:  I added test case that are closer to my query which has dismax + constant_score as https:// ... Looking at the following benchmark result, I think I can say that the changes on this PR has ... .
    shimpeko 1.1 days ago:  cont. https://github.com/apache/lucene/pull/15659issuecomment-3847147158 DismaxTerm task uses ...

#14894 PR: ART
11.2 hours ago  7 comments  0 votes  0 watches  github-actions[bot], github-project-automation[bot], vsop-479
Description This change is an exploration of ART. Trying to use it in Lucene(tip, NormalizeCharMap, or somewhere else) ART implmentation in this ... Leaf node has a key(allow null).
    vsop-479 2.6 days ago:  Update performance: TaskQPS baseline StdDevQPS my_modified_version StdDev ...
    vsop-479 3.6 days ago:  New performance: TaskQPS baseline StdDevQPS my_modified_version StdDev ...

#15663 PR: Allow NumericComparator subclasses to implement their own competitive iterators
11.4 hours ago  10 comments  0 votes  0 watches  benwtrent, github-actions[bot], jainankitk, romseygeek
This commit changes NumericComparator.CompetitiveDISIBuilder from private to protected to allow ...
    romseygeek 11.4 hours ago:  We have two internal implementations, one of which uses points and one which uses skippers, and ... So this needs to be overridden depending on which data structure the competitive iterator builder ...
    romseygeek 11.4 hours ago:  This is just example code, not meant for actual production use. The case that I'm working on is for opposite sorts, but we can also take into account things like ... But that requires knowledge of schemas, etc, so doesn't really fit as a general utility.

#15597 PR: Reduce memory usage of NeighborArray
13.2 hours ago  5 comments  0 votes  0 watches  Vikasht34, benwtrent, github-actions[bot], viliam-durina
Saves 4 bytes pre instance. We have one instance for every node and every level, so for a 1 million-node graph, we might save 5 ... In fact, BASE_RAM_BYTES_USED went from 48 to 40 bytes thanks to 8-byte object size alignment, so ...
    viliam-durina 13.2 hours ago:  It's reviewed, approved, it's waiting for committers to merge it.
    github-actions[bot] 20.1 hours 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!

#15667 PR: Use bulk scoring in NeighborArray#isWorstNonDiverse
13.2 hours ago  0 comments  0 votes  0 watches  ML-dev-crypto, github-actions[bot]
This change updates NeighborArrayisWorstNonDiverse to use the RandomVectorScorerbulkScore API, ... The bulkScore method is a default interface method and safely falls back to per-node scoring when ... Fixes 15606

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