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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4925) ContainerRequest in AMRMClient, application should be able to specify nodes/racks together with nodeLabelExpression
Date Wed, 06 Apr 2016 18:30:25 GMT

    [ https://issues.apache.org/jira/browse/YARN-4925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15228836#comment-15228836
] 

Sunil G commented on YARN-4925:
-------------------------------

Thanks [~Naganarasimha Garla] for the clarification. One final doubt, in this case if we change
the labelExpression for ANY  containerRequest ,  it will replace the expression set by node/rack
local earlier. Correct.

> 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
>
> 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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