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Posted to commits@cassandra.apache.org by "Caleb Rackliffe (Jira)" <ji...@apache.org> on 2021/09/09 16:08:00 UTC

[jira] [Commented] (CASSANDRA-16888) SSTableReaderTest#testGetPositionsKeyCacheStats failing sporadically on unexpected key cache hit for non-cached key

    [ https://issues.apache.org/jira/browse/CASSANDRA-16888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17412662#comment-17412662 ] 

Caleb Rackliffe commented on CASSANDRA-16888:
---------------------------------------------

What's interesting is that this test only seems to have been running since CASSANDRA-12922. There's also {{OrderedJUnit4ClassRunner}} in play here, so there might be some test state leakage that was papering over that's now a problem...

> SSTableReaderTest#testGetPositionsKeyCacheStats failing sporadically on unexpected key cache hit for non-cached key
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-16888
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16888
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local/Caching
>            Reporter: Caleb Rackliffe
>            Assignee: Caleb Rackliffe
>            Priority: Normal
>             Fix For: 4.0.x, 4.x
>
>
> This has started to pop up on 4.0.x and trunk builds in both CircleCI and Apache CI:
> [https://app.circleci.com/pipelines/github/josh-mckenzie/cassandra/60/workflows/15e09ea4-4d35-4035-9afc-ff0d1089041e/jobs/382]
> [https://app.circleci.com/pipelines/github/maedhroz/cassandra/332/workflows/3bd588d9-717f-4877-8e78-7a127180dfee/jobs/2093/tests#failed-test-0]
> https://ci-cassandra.apache.org/view/patches/job/Cassandra-devbranch/1067/testReport/junit/org.apache.cassandra.io.sstable/SSTableReaderTest/testGetPositionsKeyCacheStats_cdc/
>  
> It passes consistently in local runs, although I have seen one failure in about 10 runs.



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