[jira] [Commented] (YARN-4925) ContainerRequest in AMRMClient, application should be able to specify nodes/racks together with nodeLabelExpression

["Jonathan Hung (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-4925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017897#comment-16017897 ] 

Jonathan Hung commented on YARN-4925:
-------------------------------------

Attached a branch-2.7 patch.

> ContainerRequest in AMRMClient, application should be able to specify nodes/racks together with nodeLabelExpression
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4925
>                 URL: https://issues.apache.org/jira/browse/YARN-4925
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>              Labels: release-blocker
>             Fix For: 2.8.0, 3.0.0-alpha1
>
>         Attachments: 0001-YARN-4925.patch, 0002-YARN-4925.patch, YARN-4925-branch-2.7.001.patch
>
>
> Currently with nodelabel AMRMClient will not be able to specify nodelabels with Node/Rack requests.For application like spark NODE_LOCAL requests cannot be asked with label expression.
> As per the check in  {{AMRMClientImpl#checkNodeLabelExpression}}
> {noformat}
>     // Don't allow specify node label against ANY request
>     if ((containerRequest.getRacks() != null && 
>         (!containerRequest.getRacks().isEmpty()))
>         || 
>         (containerRequest.getNodes() != null && 
>         (!containerRequest.getNodes().isEmpty()))) {
>       throw new InvalidContainerRequestException(
>           "Cannot specify node label with rack and node");
>     }
> {noformat}
> {{AppSchedulingInfo#updateResourceRequests}} we do reset of labels to that of OFF-SWITCH. 
> The above check is not required for ContainerRequest ask /cc [~wangda] thank you for confirming



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