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https://issues.apache.org/jira/browse/YARN-450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13595971#comment-13595971
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Arun C Murthy commented on YARN-450:
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How about defining this in YarnConfiguration?
> Define value for * in the scheduling protocol
> ---------------------------------------------
>
> Key: YARN-450
> URL: https://issues.apache.org/jira/browse/YARN-450
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Bikas Saha
> Assignee: Zhijie Shen
> Attachments: YARN-450_1.patch, YARN-450_2.patch
>
>
> The ResourceRequest has a string field to specify node/rack locations. For
> the cross-rack/cluster-wide location (ie when there is no locality
> constraint) the "*" string is used everywhere. However, its not defined
> anywhere and each piece of code either defines a local constant or uses the
> string literal. Defining "*" in the protocol and removing other local
> references from the code base will be good.
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