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https://issues.apache.org/jira/browse/YARN-4560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15197617#comment-15197617
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Ray Chiang commented on YARN-4560:
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Thanks for the review everyone! Thanks for the commit Karthik!
> Make scheduler error checking message more user friendly
> --------------------------------------------------------
>
> Key: YARN-4560
> URL: https://issues.apache.org/jira/browse/YARN-4560
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Affects Versions: 2.7.1
> Reporter: Ray Chiang
> Assignee: Ray Chiang
> Priority: Trivial
> Labels: supportability
> Fix For: 2.9.0
>
> Attachments: YARN-4560.001.patch
>
>
> If the YARN properties below are poorly configured:
> {code}
> yarn.scheduler.minimum-allocation-mb
> yarn.scheduler.maximum-allocation-mb
> {code}
> The error message that shows up in the RM is:
> {panel}
> 2016-01-07 14:47:03,711 FATAL
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error starting
> ResourceManager
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Invalid resource
> scheduler memory allocation configuration,
> yarn.scheduler.minimum-allocation-mb=-1,
> yarn.scheduler.maximum-allocation-mb=-3, min should equal greater than 0, max
> should be no smaller than min.
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.validateConf(FairScheduler.java:215)
> {panel}
> While it's technically correct, it's not very user friendly.
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