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https://issues.apache.org/jira/browse/CASSANDRA-11079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15140918#comment-15140918
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Sylvain Lebresne commented on CASSANDRA-11079:
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Is my understanding correct that the assumption is that the {{sleep()}} at the
end of {{waitForLeveling}} is potentially insufficient so that we may have
remove all sstables from L0 but not yet have one in L1 when the assertion is
evaluated? In which case, aren't all use of {{waitForLeveling}} potentially
risky?
> LeveledCompactionStrategyTest.testCompactionProgress unit test fails sometimes
> ------------------------------------------------------------------------------
>
> Key: CASSANDRA-11079
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11079
> Project: Cassandra
> Issue Type: Bug
> Components: Testing
> Reporter: Sylvain Lebresne
> Assignee: Marcus Eriksson
> Fix For: 2.1.x, 2.2.x, 3.0.x, 3.x
>
>
> It appears the {{LeveledCompactionStrategyTest.testCompactionProgress}} test
> is sometimes failing on CI with the following error:
> http://cassci.datastax.com/job/trunk_utest/lastCompletedBuild/testReport/org.apache.cassandra.db.compaction/LeveledCompactionStrategyTest/testCompactionProgress/
> According to CI history, it happened just recently but has already happened
> about ~30 runs ago so it's not a one off (it looks pretty are tbh though).
> It's worth a look.
> Note that I just saw the failure on trunk but haven't checked other branches.
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