[jira] [Updated] (AMBARI-15250) Collision between HBase Master and RS metrics

["Siddharth Wagle (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-15250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Siddharth Wagle updated AMBARI-15250:
-------------------------------------
    Attachment: AMBARI-15250.patch

> Collision between HBase Master and RS metrics
> ---------------------------------------------
>
>                 Key: AMBARI-15250
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15250
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.0.0
>            Reporter: Siddharth Wagle
>            Assignee: Siddharth Wagle
>             Fix For: 2.2.2
>
>         Attachments: AMBARI-15250.patch
>
>
> Found out that Ganglia added the processName in JVM metrics to make this distinction::
> org.apache.hadoop.metrics.ganglia.GangliaContext#emitRecord
> {code}
> // Setup so that the records have the proper leader names so they are
>     // unambiguous at the ganglia level, and this prevents a lot of rework
>     StringBuilder sb = new StringBuilder();
>     sb.append(contextName);
>     sb.append('.');
>     if (contextName.equals("jvm") && outRec.getTag("processName") != null) {
>       sb.append(outRec.getTag("processName"));
>       sb.append('.');
>     }
> {code}
> This is missing from our Sink which means some metrics do not have unique names and will collide. _Affects HBase only_



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