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From "Berenguer Blasi (Jira)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-15986) Repair tests flakiness
Date Fri, 14 Aug 2020 11:04:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-15986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17177701#comment-17177701
] 

Berenguer Blasi commented on CASSANDRA-15986:
---------------------------------------------

So I have tried with a VM on diff memory settings down to 3GB and even capping CPU to 10%
only. That thing is solid as a rock. I can't repro. On too low specs it starts to fail on
legit timeouts on other areas. So no way to repro this one for me.

On the other hand I tried to repro the Tracing test failures and I did manage to. So I will
try that once I am back from my 1w break #justfyi

> 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
>            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.
> 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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