[jira] [Assigned] (AMBARI-17249) Storm metrics sink should include worker host and port to metric name when metrics are coming from SystemBolt

["Jungtaek Lim (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-17249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jungtaek Lim reassigned AMBARI-17249:
-------------------------------------

    Assignee: Jungtaek Lim

> Storm metrics sink should include worker host and port to metric name when metrics are coming from SystemBolt
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-17249
>                 URL: https://issues.apache.org/jira/browse/AMBARI-17249
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-metrics
>    Affects Versions: 2.4.0
>            Reporter: Jungtaek Lim
>            Assignee: Jungtaek Lim
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-17249-v1.patch
>
>
> Background: SystemBolt is reserved component for each worker which exposes worker level metrics like Memory, GC, and uptime, and so on.
> All SystemBolts have -1 as task id, so identifying SystemBolt components to task id as same as normal components will fail.
> Since each worker is identified by (worker host, port) pair, we can add hostname and port to metric name to make metric name unique.
> Since it's only for SystemBolt, instead of adding hostname and port to all of metrics, we can add these to specific metrics which are coming from SystemBolt.



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