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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12474) Ozone: SCM: Handling container report with key count and container usage.
Date Mon, 30 Oct 2017 12:32:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16224827#comment-16224827

Yiqun Lin commented on HDFS-12474:

Thanks for working on this, [~nandakumar131]. Some comments from me:
line 230: Why not use {{float}} type value for the threshold-percentage setting? And use {{Configuation#getFloat}}
to get its value. The default value here can be showed as {{0.9f}}.

line 375: {{(containerInfo.getUsed() / containerInfo.getSize())}} should be {{1.0 * (containerInfo.getUsed()
/ containerInfo.getSize())}}. The return type of getUsed and getSize are both {{long}} type.

line 369: {{ContainerInfo.lastUsed}} doesn't be set here.

Would you please also add additional unit test that verify the correctness of handling container
Current change of UT is just replacing the new class.

> Ozone: SCM: Handling container report with key count and container usage.
> -------------------------------------------------------------------------
>                 Key: HDFS-12474
>                 URL: https://issues.apache.org/jira/browse/HDFS-12474
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: HDFS-7240
>            Reporter: Xiaoyu Yao
>            Assignee: Nanda kumar
>              Labels: ozoneMerge
>         Attachments: HDFS-12474-HDFS-7240.000.patch
> Currently, the container report only contains the # of reports sent to SCM. We will need
to provide the key count and the usage of each individual containers to update the SCM container
state maintained by ContainerStateManager. This has a dependency on HDFS-12387.

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