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https://issues.apache.org/jira/browse/YARN-6044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16124767#comment-16124767
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Tao Yang commented on YARN-6044:
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Thanks [~djp] and [~sunilg] for your reply. The solution makes sense to me.
> Resource bar of Capacity Scheduler UI does not show correctly
> -------------------------------------------------------------
>
> Key: YARN-6044
> URL: https://issues.apache.org/jira/browse/YARN-6044
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.8.0
> Reporter: Tao Yang
> Priority: Minor
>
> Test Environment:
> 1. NodeLable
> yarn rmadmin -addToClusterNodeLabels "label1(exclusive=false)"
> 2. capacity-scheduler.xml
> yarn.scheduler.capacity.root.queues=a,b
> yarn.scheduler.capacity.root.a.capacity=60
> yarn.scheduler.capacity.root.b.capacity=40
> yarn.scheduler.capacity.root.a.accessible-node-labels=label1
> yarn.scheduler.capacity.root.accessible-node-labels.label1.capacity=100
> yarn.scheduler.capacity.root.a.accessible-node-labels.label1.capacity=100
> In this test case, for queue(root.b) in partition(label1), the resource
> bar(represents absolute-max-capacity) should be 100%(default). The scheduler
> UI shows correctly after RM started, but when I started an app in
> queue(root.b) and partition(label1) , the resource bar of this queue is
> changed from 100% to 0%.
> For corrent queue(root.a), the queueCapacities of partition(label1) was
> inited in ParentQueue/LeafQueue constructor and
> max-capacity/absolute-max-capacity were setted with correct value, due to
> yarn.scheduler.capacity.root.a.accessible-node-labels is defined in
> capacity-scheduler.xml
> For incorrent queue(root.b), the queueCapacities of partition(label1) didn't
> exist at first, the max-capacity and absolute-max-capacity were setted with
> default value(100%) in PartitionQueueCapacitiesInfo so that Scheduler UI
> could show correctly. When this queue was allocating resource for
> partition(label1), the queueCapacities of partition(label1) was created and
> only used-capacity and absolute-used-capacity were setted in
> AbstractCSQueue#allocateResource. max-capacity and absolute-max-capacity have
> to use float default value 0 which are defined in QueueCapacities$Capacities.
> Whether max-capacity and absolute-max-capacity should have default
> value(100%) in Capacities constructor to avoid losing default value if
> somewhere called not given?
> Please feel free to give your suggestions.
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