[jira] [Updated] (AMBARI-22625) Non DFS Used from HDFS Namenode UI and HDFS summary in Ambari is different

["Akhil S Naik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-22625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Akhil S Naik updated AMBARI-22625:
----------------------------------
    Attachment: ambari.png
                ambari-2.png

> Non DFS Used from HDFS Namenode UI and HDFS summary in Ambari  is different
> ---------------------------------------------------------------------------
>
>                 Key: AMBARI-22625
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22625
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-client
>    Affects Versions: 2.5.2
>            Reporter: Akhil S Naik
>            Priority: Minor
>              Labels: easyfix, newbie
>         Attachments: ambari-2.png
>
>
> the 'NON DFS Used' value  in Services -> HDFS -> Summary if different from the Value shown in NameNode UI .
> in NAMENODE UI -->
> !namenode.jpg|thumbnail!
> In Services -> HDFS -> Summary
> !ambari.jpg|thumbnail!
> In NameNode UI the Non DFS Used is taken from 'NonDfsUsedSpace' variable from  REST API call : http://host1:50070/jmx?qry=Hadoop:service=NameNode,name=NameNodeInfo 
> Where host1 is the Name Node Server FQDN
> but in Ambari we are calculating the same value from Total Allocated - DFS USed - DFS Remaining .
> due to which this issue is happening.
> as a Fix we need to use the 'capacityNonDfsUsed' which comes from Server in NameNode metrics
> 'FSNamesystem > CapacityNonDFSUsed'
> attached the patch in the JIRA.
> Please fix this bug



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