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https://issues.apache.org/jira/browse/GEODE-8503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17197769#comment-17197769
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ASF GitHub Bot commented on GEODE-8503:
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jdeppe-pivotal commented on pull request #5522:
URL: https://github.com/apache/geode/pull/5522#issuecomment-694319828
@sabbey @ringles @jhutchison for your review...
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> Limit netty threads used in PubSubDUnitTest
> -------------------------------------------
>
> Key: GEODE-8503
> URL: https://issues.apache.org/jira/browse/GEODE-8503
> Project: Geode
> Issue Type: Test
> Components: redis
> Reporter: Jens Deppe
> Assignee: Jens Deppe
> Priority: Major
> Labels: pull-request-available
>
> The {{PubSubDUnitTest}} currently fails when run under stress
> ({{StressNewTest}} job in CI). There are various factors at play here:
> - Test hosts have 96 vCPUs and netty will use 2x this number for each
> EventLoopGroup (of which we have 2). For some tests we end up needing almost
> 1600 threads which seems excessive.
> - VMs are not recycled between every test run but thread resources are also
> not cleaned up synchronously between runs; this seems to be the biggest
> problem.
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