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https://issues.apache.org/jira/browse/CASSANDRA-21495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas reassigned CASSANDRA-21495:
--------------------------------------------
Assignee: Benedict Elliott Smith
> Flaky test: Reproducible failing seed in CommandsForKeySerializerTest#test
> --------------------------------------------------------------------------
>
> Key: CASSANDRA-21495
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21495
> Project: Apache Cassandra
> Issue Type: Bug
> Reporter: C. Scott Andreas
> Assignee: Benedict Elliott Smith
> Priority: Normal
>
> CommandsForKeySerializerTest#test is exhibiting infrequent test flakes.
> On trunk at 1332e217, the seed value {{8371760811100379575}}
> Fails with:
> {{junit.framework.AssertionFailedError: Property error detected:}}
> {{ Seed = 8371760811100379575 ; Examples = 1000 ; Pure = true}}
> {{Caused by: java.lang.IllegalArgumentException: Could not generate a unique
> value after 10k attempts}}
> {{ at accord.utils.Gens$GenReset.next(Gens.java:1473)}}
> {{ at accord.utils.Gens$ArrayDSL.lambda$ofSizeBetween$0(Gens.java:1358)}}
> {{ at
> ...CommandsForKeySerializerTest.lambda$test$33(CommandsForKeySerializerTest.java}}
> As the test is written, the failure occurs because the `redundantBefore`
> value is drawn from a narrow domain which can be exhausted.
> When the domain is exhausted, no seed value can be found and the test fails
> after 10k attempts.
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