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https://issues.apache.org/jira/browse/YARN-9121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Szilard Nemeth updated YARN-9121:
---------------------------------
Description:
The clients of GpuDiscoverer are very hard to test as they call
GpuDiscoverer.getInstance() internally.
For example, writing tests for
org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin.gpu.GpuResourcePlugin#getNMResourceInfo
is quite hard as the GpuDeviceInformation returned by GpuDiscoverer is not
interchangeable as GpuDiscoverer is not mockable since we cannot inject it in
tests.
> Users of GpuDiscoverer.getInstance() are not possible to test as instance is
> a static field
> -------------------------------------------------------------------------------------------
>
> Key: YARN-9121
> URL: https://issues.apache.org/jira/browse/YARN-9121
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Szilard Nemeth
> Priority: Major
> Attachments: YARN-9121.001.patch
>
>
> The clients of GpuDiscoverer are very hard to test as they call
> GpuDiscoverer.getInstance() internally.
> For example, writing tests for
> org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin.gpu.GpuResourcePlugin#getNMResourceInfo
> is quite hard as the GpuDeviceInformation returned by GpuDiscoverer is not
> interchangeable as GpuDiscoverer is not mockable since we cannot inject it in
> tests.
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