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From "Akhil S Naik (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-22625) Non DFS Used from HDFS Namenode UI and HDFS summary in Ambari is different
Date Mon, 11 Dec 2017 13:13:03 GMT
Akhil S Naik created AMBARI-22625:
-------------------------------------

             Summary: 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



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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