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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11451) Ozone: Add protobuf definitions for container reports
Date Tue, 07 Mar 2017 05:44:33 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15898788#comment-15898788
] 

Anu Engineer commented on HDFS-11451:
-------------------------------------

[~xyao] verbally approved checking the patch v4 since jenkins is not working and all tests
pass locally. Committing based on that.


> Ozone: Add protobuf definitions for container reports
> -----------------------------------------------------
>
>                 Key: HDFS-11451
>                 URL: https://issues.apache.org/jira/browse/HDFS-11451
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>    Affects Versions: HDFS-7240
>            Reporter: Anu Engineer
>            Assignee: Anu Engineer
>             Fix For: HDFS-7240
>
>         Attachments: HDFS-11451-HDFS-7240.001.patch, HDFS-11451-HDFS-7240.002.patch,
HDFS-11451-HDFS-7240.003.patch, HDFS-11451-HDFS-7240.004.patch
>
>
> Container reports are send from datanodes describing the state of the container. Since
a full container report can be as large as 2 MB, the container reports are send by datanode
only when SCM approves it.
> In this change, datanode informs the SCM that it has a container report ready. SCM based
on load will send a command to datanode to send the actual report. The protobuf classes and
plumbing required for that change is part of this patch. This whole container reports handling
will be broken into multiple JIRAs to make it easy to code review.



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