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https://issues.apache.org/jira/browse/YARN-752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13678405#comment-13678405
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Bikas Saha commented on YARN-752:
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User cannot provide a wrong rack for a node. User can provide a wrong rack by
itself. If a rack is missing then it will be corrected by AMRMClient. If there
is another different rack, its either a valid rack or a rack that does not
exist. We should probably resolve nodes and racks to make sure they are all
valid locations. Different jira perhaps. This kind of depends on YARN-435.
> In AMRMClient, automatically add corresponding rack requests for requested
> nodes
> --------------------------------------------------------------------------------
>
> Key: YARN-752
> URL: https://issues.apache.org/jira/browse/YARN-752
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: api, applications
> Affects Versions: 2.0.4-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Attachments: YARN-752-1.patch, YARN-752-1.patch, YARN-752.patch
>
>
> A ContainerRequest that includes node-level requests must also include
> matching rack-level requests for the racks that those nodes are on. When a
> node is present without its rack, it makes sense for the client to
> automatically add the node's rack.
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