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#16279 PR: Add JMH benchmarks comparing read I/O strategies under memory pressure
10.8 minutes ago  3 comments  0 votes  0 watches  github-actions[bot], github-advanced-security[bot], neoremind
Adds JMH benchmarks to compare read I/O strategies in memory constrained scenario, related to 16044 ... I/O strategies tested: - mmap no madvise - mmap + MADV_RANDOM - mmap + MADV_RANDOM + ... How to run ` dd if=/dev/urandom of=/path/to/pread-bench-16G.dat bs=1M count=16384 .
    github-advanced-security[bot] 42.2 minutes ago:  # CodeQL / Executing a command with a relative path Command with a relative path 'sudo' is ... Show more details
    github-advanced-security[bot] 42.2 minutes ago:  # CodeQL / Executing a command with a relative path Command with a relative path 'sync' is ... Show more details

#16044: Introduce a pread Directory based on Panama-FFI ?
19.1 minutes ago  4 comments  0 votes  0 watches  gf2121, jilldoty-elastic, jimczi, neoremind, spinscale, stevenschlansker
Description > Following is generally written by LLM but benchmark is run by myself :) # 1. Motivation: NIOFSDirectory is still relevant In recent memory-constrained deployments ( ... Switching to NIOFSDirectory helps us resolve it. # 2.
    neoremind 19.1 minutes ago:  @jimczi thanks for the feedback, I rerun the benchmarks with additional mmap ways suggested: mmap + ... Share the full results below.
    neoremind 1.4 days ago:  Thank you Jim! I will run the test again with suggested configs and share results in the next few days.

#16263: Bias Towards Short Text Segments in Vector Search Results
28.5 minutes ago  7 comments  0 votes  0 watches  amoll75, benwtrent, mkhludnev
Description We have been using Solr's vector search successfully in production for about two ... During this time, we have observed a recurring issue: The highest-ranked results returned by ... The underlying reason appears to be that a short query or query concept has a much higher ...
    amoll75 28.5 minutes ago:  Yes, the text Segment length for which the vector was calculated Mikhail Khludnev ***@***.***> ... Juni 2026, 18:15: > *mkhludnev* left a comment (apache/lucene16263) > <https://github.com/ ... .
    mkhludnev 31.1 minutes ago:  > external score normalization step based on the square root of the embedding length. Pardon, @amoll75 , do you mean text segment length?

#16277 PR: enhancement(16076): Implement 3-ary priority queue
28.9 minutes ago  0 comments  0 votes  0 watches  github-actions[bot], vijaykriishna
Description #16076 - Implement a ternary-heap based PriorityQueue.

#16278 PR: Add suppressed exception details in NativeFSLockFactory lock acquisition failure
3.6 hours ago  0 comments  0 votes  0 watches  Bharathi-Kanna, github-actions[bot]
Description When lock acquisition fails in NativeFSLockFactory.obtainFSLock, the FileChannel is ... There was a // TODO: addSuppressed comment indicating that any exception during closure should be ... **Changes:** - Replace the finally block with catch (Throwable t) to properly capture the original ...

#15985 PR: Fix(15831): Resolve race condition in ReferenceManager.doMaybeRefresh
9.4 hours ago  13 comments  0 votes  0 watches  github-actions[bot], mikemccand, vigyasharma, vijaykriishna
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 --> The key behavioral change is that ...
    vijaykriishna 21 days ago:  @vigyasharma @mikemccand As suggested, I have ported the code changes for issue 15831 from main to ... Please review the PR. Ref. https://github.com/apache/lucene/pull/16152
    github-actions[bot] 1.1 months 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!

#16207 PR: fix(16033) - Fix data race in BlockingFloatHeap.poll function
9.5 hours ago  14 comments  0 votes  0 watches  github-actions[bot], iprithv, vijaykriishna
Description The data race in the poll() method has been resolved by moving the lock acquisition ... This ensures that the entire operation—both the validation and the heap operations—is protected by ... Resolves: https://github.com/apache/lucene/issues/16033
    vijaykriishna 6.3 days ago:  > I see more things here, which doesn't test this bug except testDataRaceOnPoll...other things i ... You're right. testDataRaceOnPoll() is the only test that specifically reproduces the race fixed in ... The other tests are broader concurrency checks and don't appear to fail without the fix.
    vijaykriishna 6.3 days ago:  > shouldn't this be under bug fixes? You're right. Placed it under bug fixes section.

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