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https://issues.apache.org/jira/browse/CASSANDRA-17043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17430471#comment-17430471
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Andres de la Peña commented on CASSANDRA-17043:
-----------------------------------------------
Thanks for the review :)
Committed to 3.0 as
[ee6cd06afb66317212d681117d460afebf1ceb31|https://github.com/apache/cassandra/commit/ee6cd06afb66317212d681117d460afebf1ceb31]
and merged to
[3.11|https://github.com/apache/cassandra/commit/7e95c92d00df83d8333852e37813a871a1aada93],
[4.0|https://github.com/apache/cassandra/commit/72f3b7901879aba902f92b45215a25ee130ff057]
and
[trunk|https://github.com/apache/cassandra/commit/3a950b45c321e051a9744721408760c568c05617].
There was a little typo on 3.0/MIDRES wrongly changing the parallelism for
{{repeated_upgrade_dtest}} on 3.0/MIDRES to 100, while we want to keep the
original 25. I have fixed it on commit.
> CircleCI dtest multiplexer with MIDRES needs more resources
> -----------------------------------------------------------
>
> Key: CASSANDRA-17043
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17043
> Project: Cassandra
> Issue Type: Task
> Components: CI
> Reporter: Andres de la Peña
> Assignee: Andres de la Peña
> Priority: Low
> Fix For: 3.0.x, 3.11.x, 4.0.x, 4.x
>
>
> The CircleCI jobs for regular dtests jobs have more resources in MIDRES,
> which is necessary for some dtests to reliably success. However, the dtest
> multiplexer uses the same resources for LOWRES and MIDRES.
> I think that the dtest multiplexer should always use the same resources as
> the regular dtests. Using too small resources in the multiplexer can lead to
> failures that don't reproduce in the regular dtest jobs, like the one we
> found in
> [CASSANDRA-16334|https://app.circleci.com/pipelines/github/adelapena/cassandra/1020/workflows/63908694-e4d7-40b1-9418-7a4b87826233/jobs/9422]
> when trying to repeatedly run a resource-hungry dtest, or like [this other
> one|https://app.circleci.com/pipelines/github/adelapena/cassandra/1020/workflows/63908694-e4d7-40b1-9418-7a4b87826233/jobs/9422]
> while running {{test_network_topology}}.
> This happens because I forgot to update the diff patch when adding the
> multiplexer. This doesn't affect HIGHRES because in that case the patch
> changes the configuration of the test executor, while in MIDRES a new
> executor is defined.
>
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