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https://issues.apache.org/jira/browse/CASSANDRA-18362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17709468#comment-17709468
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Andres de la Peña commented on CASSANDRA-18362:
-----------------------------------------------
Indeed it is rare.
5000 runs of the entire {{SplitterTest}} suite haven't managed to reproduce it:
*
[https://app.circleci.com/pipelines/github/adelapena/cassandra/2811/workflows/8fd7a494-dd2d-4837-9315-1154b8a8cb91]
{code:java}
.circleci/generate.sh -p \
-e REPEATED_UTESTS_COUNT=5000 \
-e REPEATED_UTESTS=org.apache.cassandra.dht.SplitterTest
{code}
20.000 runs of the separate {{randomSplitTestVNodesMurmur3Partitioner}} method
haven't reproduced it either:
*
[https://app.circleci.com/pipelines/github/adelapena/cassandra/2812/workflows/5abae05e-c62b-4dcd-beaa-c1f480fed25b]
{code:java}
.circleci/generate.sh -p \
-e REPEATED_UTESTS_COUNT=20000 \
-e
REPEATED_UTESTS=org.apache.cassandra.dht.SplitterTest#randomSplitTestVNodesMurmur3Partitioner
{code}
> Test failure:
> org.apache.cassandra.dht.SplitterTest.randomSplitTestVNodesMurmur3Partitioner
> -------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18362
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18362
> Project: Cassandra
> Issue Type: Bug
> Components: Consistency/Coordination
> Reporter: Brandon Williams
> Priority: Normal
> Fix For: 4.0.x
>
>
> Probably fairly rare:
> {noformat}
> junit.framework.AssertionFailedError: Could not split 174 tokens with rf=2
> into 5 parts (localRanges=[WeightedRange{weight=1.0,
> range=(-9189224686959415082,-9138072478779219369]}, WeightedRange{weight=1.0,
> range=(-9119899575136046252,-
> [huge amount of ranges removed]
> (9187328586100957628,9192925485386116970]}, WeightedRange{weight=1.0,
> range=(9202885784017058194,9218589957041545366]}],
> boundaries=[-5733128546251210859, -2182877486944060087, 1864834456333815149,
> 5294455324274550397, 9223372036854775807])
> at
> org.apache.cassandra.dht.SplitterTest.randomSplitTestVNodes(SplitterTest.java:153)
> at
> org.apache.cassandra.dht.SplitterTest.randomSplitTestVNodesMurmur3Partitioner(SplitterTest.java:67)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> {noformat}
> https://app.circleci.com/pipelines/github/driftx/cassandra/928/workflows/f4e93a72-d4aa-47a2-996f-aa3fb018d848/jobs/16199
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