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Posted to hdfs-issues@hadoop.apache.org by "Anu Engineer (JIRA)" <ji...@apache.org> on 2017/03/02 19:33:45 UTC
[jira] [Updated] (HDFS-11451) Ozone: Add protobuf definitions for
container reports
[ https://issues.apache.org/jira/browse/HDFS-11451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Anu Engineer updated HDFS-11451:
--------------------------------
Status: Open (was: Patch Available)
> 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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