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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3003) Provide API for client to retrieve label to node mapping
Date Mon, 05 Jan 2015 00:33:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-3003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14264113#comment-14264113
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Naganarasimha G R commented on YARN-3003:
-----------------------------------------

We can adopt approach something similar to YARN-2943 to get the labels to node mapping but
we need to ensure that the data structure to be created on the fly so that there is no impact
on the memory and is created only when required.

> Provide API for client to retrieve label to node mapping
> --------------------------------------------------------
>
>                 Key: YARN-3003
>                 URL: https://issues.apache.org/jira/browse/YARN-3003
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: client, resourcemanager
>            Reporter: Ted Yu
>            Assignee: Varun Saxena
>
> Currently YarnClient#getNodeToLabels() returns the mapping from NodeId to set of labels
associated with the node.
> Client (such as Slider) may be interested in label to node mapping - given label, return
the nodes with this label.



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