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https://issues.apache.org/jira/browse/YARN-796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14053704#comment-14053704
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Allen Wittenauer commented on YARN-796:
---------------------------------------
b
bq. Instead, each node can supply its own labels, via
yarn.nodemanager.node.labels (which specifies labels directly) or
yarn.nodemanager.node.labelFile (which points to a file that has a single line
containing all the labels). It's easy to generate the label file for each node.
Why not just generate this on the node manager a la health check or topology?
Provide a hook to actually execute the script or the class and have the NM run
it by a user-defined period, including "just at a boot". [... and before it
gets asked, yes, certain classes of hardware *do* allow such dynamic change.]
> Allow for (admin) labels on nodes and resource-requests
> -------------------------------------------------------
>
> Key: YARN-796
> URL: https://issues.apache.org/jira/browse/YARN-796
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Arun C Murthy
> Assignee: Wangda Tan
> Attachments: LabelBasedScheduling.pdf, YARN-796.patch
>
>
> It will be useful for admins to specify labels for nodes. Examples of labels
> are OS, processor architecture etc.
> We should expose these labels and allow applications to specify labels on
> resource-requests.
> Obviously we need to support admin operations on adding/removing node labels.
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