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https://issues.apache.org/jira/browse/YARN-9120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16721650#comment-16721650
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Wangda Tan commented on YARN-9120:
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[~snemeth] / [~tangzhankun], I prefer to make GPU plugin can be
disabled/enabled as a whole. To me adding the new option makes harder to
troubleshooting. And I'm not sure if there's any solid requirement to allow
enable/disable GPU when the node is running, there're some logics of NM may
prevent this as well. Just my $0.02.
> Need to have a way to turn off GPU auto-discovery in GpuDiscoverer
> ------------------------------------------------------------------
>
> Key: YARN-9120
> URL: https://issues.apache.org/jira/browse/YARN-9120
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Szilard Nemeth
> Priority: Major
>
> GpuDiscoverer.getGpusUsableByYarn either parses the user-defined GPU devices
> or should have the value 'auto' (from property:
> yarn.nodemanager.resource-plugins.gpu.allowed-gpu-devices)
> In some circumstances, users would want to exclude a node from scheduling, so
> they should have an option to turn off auto-discovery.
> It's straightforward that this is possible by removing the GPU
> resource-plugin from YARN's config along with GPU-related config in
> container-executor.cfg, but doing that with a dedicated value for
> yarn.nodemanager.resource-plugins.gpu.allowed-gpu-devices is a more
> lightweight approach.
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