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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11451) Ozone: Add protobuf definitions for container reports
Date Thu, 23 Feb 2017 23:29:44 GMT
Anu Engineer created HDFS-11451:
-----------------------------------

             Summary: 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


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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