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https://issues.apache.org/jira/browse/HDFS-9414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15038548#comment-15038548
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Xiaobing Zhou commented on HDFS-9414:
-------------------------------------
Move-out will break backward compatibility. It'd better to keep interface in
ClientDatanodeProtocol unchanged, but delegate the implementation to
ReconfigurationProtocol. Next patch will address it.
> Moving reconfiguration protocol out of ClientDatanodeProtocol for reusability
> -----------------------------------------------------------------------------
>
> Key: HDFS-9414
> URL: https://issues.apache.org/jira/browse/HDFS-9414
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Attachments: HDFS-9414.001.patch
>
>
> Since reconfiguration protocol is reused by both DataNode and NameNode, this
> work proposes to move it out of ClientDatanodeProtocol into dedicated
> ReconfigurationProtocol.
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