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https://issues.apache.org/jira/browse/YARN-4330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15666763#comment-15666763
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Naganarasimha G R commented on YARN-4330:
-----------------------------------------
Hi [~elgoiri] & [~varun_saxena],
bq. I think that NodeManagerHardwareUtils should use
getNodeResourceMonitorPlugin() to get the ResourceCalculatorPlugin.
I would like to differ here, focus of the jira here is to refactor the code and
avoid the logs in Mini yarn cluster, So would not like to include changes
outside the scope and may be we can raise a new jira and handle it there ?
> MiniYARNCluster is showing multiple Failed to instantiate default resource
> calculator warning messages.
> --------------------------------------------------------------------------------------------------------
>
> Key: YARN-4330
> URL: https://issues.apache.org/jira/browse/YARN-4330
> Project: Hadoop YARN
> Issue Type: Bug
> Components: test, yarn
> Affects Versions: 2.8.0
> Environment: OSX, JUnit
> Reporter: Steve Loughran
> Assignee: Varun Saxena
> Priority: Blocker
> Labels: oct16-hard
> Attachments: YARN-4330.002.patch, YARN-4330.003.patch,
> YARN-4330.01.patch
>
>
> Whenever I try to start a MiniYARNCluster on Branch-2 (commit #0b61cca), I
> see multiple stack traces warning me that a resource calculator plugin could
> not be created
> {code}
> (ResourceCalculatorPlugin.java:getResourceCalculatorPlugin(184)) -
> java.lang.UnsupportedOperationException: Could not determine OS: Failed to
> instantiate default resource calculator.
> java.lang.UnsupportedOperationException: Could not determine OS
> {code}
> This is a minicluster. It doesn't need resource calculation. It certainly
> doesn't need test logs being cluttered with even more stack traces which will
> only generate false alarms about tests failing.
> There needs to be a way to turn this off, and the minicluster should have it
> that way by default.
> Being ruthless and marking as a blocker, because its a fairly major
> regression for anyone testing with the minicluster.
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