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

["Arun C Murthy (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated MAPREDUCE-3747:
-------------------------------------

    Status: Patch Available  (was: Open)
    
> Memory Total is not refreshed until an app is launched
> ------------------------------------------------------
>
>                 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
>            Assignee: Arun C Murthy
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3747.patch
>
>
> 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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