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Posted to pr@cassandra.apache.org by "samueldlightfoot (via GitHub)" <gi...@apache.org> on 2026/02/13 12:16:13 UTC
[PR] Test failure: org.apache.cassandra.io.sstable.indexsummary.IndexSummaryTest.testLargeIndexSummary [cassandra]
samueldlightfoot opened a new pull request, #4612:
URL: https://github.com/apache/cassandra/pull/4612
Reduce memory footprint of IndexSummaryTest large summary tests
The runtime overflow guard test (testLargeIndexSummary) required ~2 GiB of off-heap memory to trigger the Integer.MAX_VALUE boundary in IndexSummaryBuilder.maybeAddEntry. SafeMemoryWriter's 50% buffer growth strategy caused ~5 GiB peak memory during reallocation (old + new buffer), exceeding CI medium node limits (3.5-5 GB).
Extract the hardcoded Integer.MAX_VALUE threshold in IndexSummaryBuilder into a @VisibleForTesting field (maxEntriesSize), allowing the test to exercise the same guard logic with a 2 MB threshold instead. Rename both large summary tests to reflect their distinct code paths: runtime truncation vs constructor-initiated downsampling.
patch by Sam Lightfoot; reviewed by <Reviewers> for CASSANDRA-20599
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Re: [PR] Test failure: org.apache.cassandra.io.sstable.indexsummary.IndexSummaryTest.testLargeIndexSummary [cassandra]
Posted by "samueldlightfoot (via GitHub)" <gi...@apache.org>.
samueldlightfoot commented on PR #4612:
URL: https://github.com/apache/cassandra/pull/4612#issuecomment-3897218192
Committed a3a834ad31907f0401489675390656b2dc570425
Thank you @michaelsembwever, @netudima & @driftx.
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Re: [PR] Test failure: org.apache.cassandra.io.sstable.indexsummary.IndexSummaryTest.testLargeIndexSummary [cassandra]
Posted by "samueldlightfoot (via GitHub)" <gi...@apache.org>.
samueldlightfoot closed pull request #4612: Test failure: org.apache.cassandra.io.sstable.indexsummary.IndexSummaryTest.testLargeIndexSummary
URL: https://github.com/apache/cassandra/pull/4612
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