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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4699) Scheduler UI and REST o/p is not in sync when -replaceLabelsOnNode is used to change label of a node
Date Wed, 17 Feb 2016 17:34:18 GMT
Sunil G created YARN-4699:
-----------------------------

             Summary: 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


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.



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