[jira] [Created] (MAPREDUCE-3747) Memory Total is not refreshed until an app is launched

["Ramya Sunil (Created) (JIRA)" <ji...@apache.org>]

Memory Total is not refreshed until an app is launched
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                 Key: MAPREDUCE-3747
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3747
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.1
            Reporter: Ramya Sunil
             Fix For: 0.23.1


Memory Total on the RM UI is not refreshed until an application is launched. This is a problem when the cluster is started for the first time or when there are any lost/decommissioned NMs.
When the cluster is started for the first time, Active Nodes is > 0 but the Memory Total=0. Also when there are any lost/decommissioned nodes, Memory Total has wrong value.
This is a useful tool for cluster admins and has to be updated correctly without having the need to submit an app each time.

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