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https://issues.apache.org/jira/browse/YARN-4979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15297107#comment-15297107
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Karthik Kambatla commented on YARN-4979:
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More importantly, the demand could be wrong and affect the way fairshare is
set?
> FSAppAttempt adds duplicate ResourceRequest to demand in updateDemand.
> ----------------------------------------------------------------------
>
> Key: YARN-4979
> URL: https://issues.apache.org/jira/browse/YARN-4979
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 2.8.0, 2.7.2
> Reporter: zhihai xu
> Assignee: zhihai xu
> Attachments: YARN-4979.001.patch
>
>
> FSAppAttempt adds duplicate ResourceRequest to demand in updateDemand. We
> should only count ResourceRequest for ResourceRequest.ANY when calculate
> demand.
> Because {{hasContainerForNode}} will return false if no container request for
> ResourceRequest.ANY and both {{allocateNodeLocal}} and {{allocateRackLocal}}
> will also decrease the number of containers for ResourceRequest.ANY.
> This issue may cause current memory demand overflow(integer) because
> duplicate requests can be on multiple nodes.
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