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https://issues.apache.org/jira/browse/YARN-796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14068704#comment-14068704
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Alejandro Abdelnur commented on YARN-796:
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Wandga, previously I've missed the new doc explaining label predicates. Thanks
for pointing it out.
How about first shooting for the following?
* RM has list of valid labels. (hot reloadable)
* NMs have list of labels. (hot reloadable)
* NMs report labels at registration time and on heartbeats when they change
* label-expressions support && (AND) only
* app able to specify a label-expression when making a resource request
* queues to AND augment the label expression with the queue label-expression
And later we can add (in a backwards compatible way)
* add support for OR and NOT to label-expressions
* add label ACLs
* centralized per NM configuration, REST API for it, etc, etc
Thoughts?
> 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,
> Node-labels-Requirements-Design-doc-V1.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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