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https://issues.apache.org/jira/browse/CASSANDRA-15986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17181908#comment-17181908
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Ekaterina Dimitrova edited comment on CASSANDRA-15986 at 8/21/20, 2:03 PM:
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I am puzzled what is going on, rebased yesterday and started the tests on the 
same VM I was using before - there is no single failure! I left it looping 
overnight...  (without the suggested patch to make the issue more obvious). I 
don't see any related patch committed recently?
At the same time, I still see it failing in Jenkins and CircleCI these days 
with the same error.
I would suggest to commit the suggested patch and continue monitoring, not 
close the ticket in the next 2 weeks for example.WDYT [~maedhroz], [~Bereng]?
I wish there was a way to multiplex a test In Jenkins. I will ping Mick to 
check how hard this would be to be implemented. It will help a lot in such 
cases. 


was (Author: e.dimitrova):
I am puzzled what is going on, rebased yesterday and started the tests on the 
same VM I was using before - there is no single failure! I left it looping 
overnight...  (without the suggested patch to make the issue more obvious)
At the same time, I still see it failing in Jenkins and CircleCI these days 
with the same error.
I would suggest to commit the suggested patch and continue monitoring, not 
close the ticket in the next 2 weeks for example.WDYT [~maedhroz], [~Bereng]?
I wish there was a way to multiplex a test In Jenkins. I will ping Mick to 
check how hard this would be to be implemented. It will help a lot in such 
cases. 

> Repair tests flakiness
> ----------------------
>
>                 Key: CASSANDRA-15986
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15986
>             Project: Cassandra
>          Issue Type: Task
>          Components: Test/dtest
>            Reporter: Berenguer Blasi
>            Assignee: Ekaterina Dimitrova
>            Priority: Normal
>             Fix For: 4.0-beta
>
>
> Repair tests come up in test failure reports every now and then. I have tried 
> to repro the 
> [latest|https://ci-cassandra.apache.org/job/Cassandra-trunk/241/testReport/junit/dtest-novnode.repair_tests.repair_test/TestRepair/test_simple_sequential_repair/]
>  locally 100 times with no luck.
> _dtest-novnode.repair_tests.repair_test/TestRepair/test_simple_sequential_repair_
> Still from experience from fixing other flaky tests I have some intuition 
> where the problems may lie. The proposed fix should add no harm if merged. We 
> can reopen the ticket if repair tests keep failing.



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