[jira] [Commented] (CASSANDRA-15685) flaky testWithMismatchingPending - org.apache.cassandra.distributed.test.PreviewRepairTest

["David Capwell (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-15685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17074046#comment-17074046 ] 

David Capwell commented on CASSANDRA-15685:
-------------------------------------------

Walking the workflow I see its this branch https://github.com/newkek/cassandra/commits/cci-test2. which is based off https://github.com/newkek/cassandra/commit/b9c7a90e8a928cb22cd2b7c4ecd9f8dbc711e10e.  This issue should be fixed with

{code}
commit dfc279a22a5563ac7a832a586914d5410426e9b7
Author: David Capwell <dc...@gmail.com>
Date:   Sat Mar 21 20:57:50 2020 -0700

    Fix flaky test o.a.c.d.test.*RepairCoordinatorFastTest

    patch by David Capwell; reviewed by Ekaterina Dimitrova and Benjamin Lerer
    for CASSANDRA-15650
{code}

That commit has its own issues (being fixed in CASSANDRA-15684 and CASSANDRA-15683), but should have fixed this test. The root cause that was that nodetool repair command had a bug where it doesn't handle the case error notification was not seen but complete was (notifications are lossy).  If you update to latest do you still see this test as flakey?

> flaky testWithMismatchingPending - org.apache.cassandra.distributed.test.PreviewRepairTest
> ------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-15685
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15685
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Test/dtest
>            Reporter: Kevin Gallardo
>            Priority: Normal
>             Fix For: 4.0-beta
>
>
> Observed in: 
> https://app.circleci.com/pipelines/github/newkek/cassandra/34/workflows/1c6b157d-13c3-48a9-85fb-9fe8c153256b/jobs/191/tests
> Failure:
> {noformat}
> testWithMismatchingPending - org.apache.cassandra.distributed.test.PreviewRepairTest
> junit.framework.AssertionFailedError
> 	at org.apache.cassandra.distributed.test.PreviewRepairTest.testWithMismatchingPending(PreviewRepairTest.java:97)
> {noformat}



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