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https://issues.apache.org/jira/browse/CASSANDRA-16595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17321947#comment-17321947
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Michael Semb Wever edited comment on CASSANDRA-16595 at 4/15/21, 6:54 AM:
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circleci yaml files updated (in same patch). I will update cassandra-builds as
part of CASSANDRA-16604
circleci:
https://app.circleci.com/pipelines/github/michaelsembwever/cassandra?branch=mck%2F16595%2Ftrunk
was (Author: michaelsembwever):
circleci yaml files updated (in same patch). I will update cassandra-builds as
part of CASSANDRA-16604
> Remove test parallelism from ant build.xml in all branches
> ----------------------------------------------------------
>
> Key: CASSANDRA-16595
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16595
> Project: Cassandra
> Issue Type: Task
> Components: Test/unit
> Reporter: Michael Semb Wever
> Assignee: Michael Semb Wever
> Priority: Normal
> Fix For: 2.2.x, 3.0.x, 3.11.x, 4.0.x
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Cassandra's build.xml supports parallel test runners. This functionality is
> available through {{`-Dtest.runners`}} and the {{`testparallel`}} ant macro.
> Having not been actively used and atrophied over time, it breaks a number of
> tests. The distributed in-jvm tests don't work at all with parallel runners
> (currently they need `-Dtest.runners=1` specified to work). And there are
> plenty of flakies, from where
> tests use fixed ports (StorageServiceServerTest), to byteman (eg
> BMUnitRunner), and around conf files on disk.
> This was raised on the dev ML, where the consensus was to remove it:
> https://lists.apache.org/thread.html/r1ca3c72b90fa6c57c1cb7dcd02a44221dcca991fe7392abd8c29fe95%40%3Cdev.cassandra.apache.org%3E
> The idea is to then replace ant test parallelism with docker container
> parallelism.
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