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https://issues.apache.org/jira/browse/HDFS-13310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16532656#comment-16532656
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Ewan Higgs commented on HDFS-13310:
-----------------------------------
{quote}Can we add javadoc to all the new messages introduced in
DatanodeProtocol.proto, and all newly added classes (SyncTask).
Any particular reason for static imports in PBHelper.java? If not, I would
prefer not declaring these as static imports.
{quote}
004
- Add Javadoc
- Remove static imports
[~virajith] shall I remove PUT_FILE in this ticket or in a followup?
> [PROVIDED Phase 2] The DatanodeProtocol should be have DNA_BACKUP to backup
> blocks
> ----------------------------------------------------------------------------------
>
> Key: HDFS-13310
> URL: https://issues.apache.org/jira/browse/HDFS-13310
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ewan Higgs
> Assignee: Ewan Higgs
> Priority: Major
> Attachments: HDFS-13310-HDFS-12090.001.patch,
> HDFS-13310-HDFS-12090.002.patch, HDFS-13310-HDFS-12090.003.patch,
> HDFS-13310-HDFS-12090.004.patch
>
>
> As part of HDFS-12090, Datanodes should be able to receive DatanodeCommands
> in the heartbeat response that instructs it to backup a block.
> This should take the form of two sub commands: PUT_FILE (when the file is <=1
> block in size) and MULTIPART_PUT_PART when part of a Multipart Upload (see
> HDFS-13186).
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