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Wangda Tan commented on YARN-4699: ---------------------------------- [~sunilg], Thanks for working on this, fix looks good to me. I think following code in test may not needed: bq. mgr.replaceLabelsOnNode(ImmutableMap.of(nm1.getNodeId(), toSet("z"))); IIRC, if we do: bq. cs.handle(new NodeLabelsUpdateSchedulerEvent(ImmutableMap.of(nm1.getNodeId(), .. Labels-related resources should be updated synchronously. > Scheduler UI and REST o/p is not in sync when -replaceLabelsOnNode is used to > change label of a node > ---------------------------------------------------------------------------------------------------- > > Key: YARN-4699 > URL: https://issues.apache.org/jira/browse/YARN-4699 > Project: Hadoop YARN > Issue Type: Bug > Components: capacity scheduler > Affects Versions: 2.7.2 > Reporter: Sunil G > Assignee: Sunil G > Priority: Critical > Attachments: 0001-YARN-4699.patch, 0002-YARN-4699.patch, > AfterAppFInish-LabelY-Metrics.png, ForLabelX-AfterSwitch.png, > ForLabelY-AfterSwitch.png > > > Scenario is as follows: > a. 2 nodes are available in the cluster (node1 with label "x", node2 with > label "y") > b. Submit an application to node1 for label "x". > c. Change node1 label to "y" by using *replaceLabelsOnNode* command. > d. Verify Scheduler UI for metrics such as "Used Capacity", "Absolute > Capacity" etc. "x" still shows some capacity. > e. Change node1 label back to "x" and verify UI and REST o/p > Output: > 1. "Used Capacity", "Absolute Capacity" etc are not decremented once labels > is changed for a node. > 2. UI tab for respective label shows wrong GREEN color in these cases. > 3. REST o/p is wrong for each label after executing above scenario. > Attaching screen shots also. This ticket will try to cover UI and REST o/p > fix when label is changed runtime. -- This message was sent by Atlassian JIRA (v6.3.4#6332)