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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11451) Ozone: Add protobuf definitions for container reports
Date Thu, 23 Feb 2017 23:31:44 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anu Engineer updated HDFS-11451:
--------------------------------
    Attachment: HDFS-11451-HDFS-7240.001.patch

Attaching a patch for code review only. This is dependent on HDFS-11184. More changes to come
in this patch.

> 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
>
>
> 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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