[jira] [Updated] (AMBARI-21939) Ambari HDFS Heatmaps are not showing data (Not Applicable) for bytes read, bytes written & DataNode Process Network I/O Utilization

["Aravindan Vijayan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-21939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan updated AMBARI-21939:
---------------------------------------
    Attachment: AMBARI-21939.patch

> Ambari HDFS Heatmaps are not showing data (Not Applicable) for bytes read, bytes written & DataNode Process Network I/O Utilization
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-21939
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21939
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.6.0
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Critical
>             Fix For: 2.6.0
>
>         Attachments: AMBARI-21939.patch
>
>
> PROBLEM: HDFS Heatmaps are not showing data (Not Applicable) for bytes read, bytes written & DataNode Process Network I/O Utilization
> EXPECTED BEHAVIOUR: Heatmaps should show data
> ACTUAL BEHAVIOUR: Data is being shown as Not Applicable (Grey Box)
> ANALYSIS
>  This is reproducible in Ambari 2.2.2 and Ambari 2.5.1.0. If you go to HDFS, then click on Heatmaps, you can see the API call go to 
> {code}
> fields=host_components/metrics/dfs/datanode/bytes_written._rate 
> {code}
> however this returns no values. If you remove ._rate then you can see the values which you would expect.



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