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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7575) When using absolute capacity configuration with no max capacity, scheduler UI NPEs and can't grow queue
Date Tue, 28 Nov 2017 22:26:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16269592#comment-16269592

Wangda Tan commented on YARN-7575:

Thanks [~eepayne], +1 from my side as well.

> When using absolute capacity configuration with no max capacity, scheduler UI NPEs and
can't grow queue
> -------------------------------------------------------------------------------------------------------
>                 Key: YARN-7575
>                 URL: https://issues.apache.org/jira/browse/YARN-7575
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler
>            Reporter: Eric Payne
>            Assignee: Sunil G
>         Attachments: YARN-7575-YARN-5881.001.patch
> I encountered the following while reviewing and testing branch YARN-5881.
> The design document from YARN-5881 says that for max-capacity:
> {quote}
> 3)  For each queue, we require:
>     a) if max-resource not set, it automatically set to parent.max-resource
> {quote}
> When I try leaving blank {{yarn.scheduler.capacity.< queue-path>.maximum-capacity}},
the RMUI scheduler page refuses to render. It looks like it's in {{CapacitySchedulerPage$
> {noformat}
> 2017-11-28 11:29:16,974 [qtp43473566-220] ERROR webapp.Dispatcher: error handling URI:
> java.lang.reflect.InvocationTargetException
> ...
>         at org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$LeafQueueInfoBlock.renderQueueCapacityInfo(CapacitySchedulerPage.java:164)
>         at org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$LeafQueueInfoBlock.renderLeafQueueInfoWithoutParition(CapacitySchedulerPage.java:129)
> {noformat}
> Also... A job will run in the leaf queue with no max capacity set and it will grow to
the max capacity of the cluster, but if I add resources to the node, the job won't grow any
more even though it has pending resources.

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