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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11468) Ozone: SCM: Add Node Metrics for SCM
Date Wed, 18 Oct 2017 13:02:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16209291#comment-16209291
] 

Weiwei Yang commented on HDFS-11468:
------------------------------------

Hi [~linyiqun]

bq. Since metric is the data of aggregated statistics. I'd like to update this as ConainerSize.
This will look simplify and also good understanding.

First time I read this metric name, I don't know what exact it is, that was why I suggested
to use a long name. After all we have a lot of long names already as metric names. E.g {{LoadingFsImageCount}},
{{LoadingFsImageElapsedTime}}, and that explains what they are better (not every one looks
the docs).

bq. There will be some more type scm metrics added into SCMMetrics in the future. Why we merge
these metrics into that class? SCMMXBean is just the JMX interface for exposing scm information.

These are SCM level metrics right? Is it a bit overlapping with SCMMXBean?

Overall I am +0.5 to the patch, just want to upon parts clear before getting this in. Hope
that makes sense thanks.

> Ozone: SCM: Add Node Metrics for SCM
> ------------------------------------
>
>                 Key: HDFS-11468
>                 URL: https://issues.apache.org/jira/browse/HDFS-11468
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Xiaoyu Yao
>            Assignee: Yiqun Lin
>            Priority: Critical
>              Labels: OzonePostMerge
>         Attachments: HDFS-11468-HDFS-7240.001.patch, HDFS-11468-HDFS-7240.002.patch,
HDFS-11468-HDFS-7240.003.patch
>
>
> This ticket is opened to add node metrics in SCM based on heartbeat, node report and
container report from datanodes. 



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