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https://issues.apache.org/jira/browse/HADOOP-2885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573106#action_12573106
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Sanjay Radia commented on HADOOP-2885:
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There was a typo in my description: internal protocols was suppose to be
dfs.server.protocol (as in the eclipse package display in my prototype
attached).
> Restructure the hadoop.dfs package
> ----------------------------------
>
> Key: HADOOP-2885
> URL: https://issues.apache.org/jira/browse/HADOOP-2885
> Project: Hadoop Core
> Issue Type: Sub-task
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
> Priority: Minor
> Fix For: 0.17.0
>
> Attachments: Prototype dfs package.png
>
>
> This Jira proposes restructurign the package hadoop.dfs.
> 1. Move all server side and internal protocols (NN-DD etc) to
> hadoop.dfs.server.*
> 2. Further breakdown of dfs.server.
> - dfs.server.namenode.*
> - dfs.server.datanode.*
> - dfs.server.balancer.*
> - dfs.server.common.* - stuff shared between the various servers
> - dfs.protocol.* - internal protocol between DN, NN and Balancer etc.
> 3. Client interface:
> - hadoop.dfs.DistributedFileSystem.java
> - hadoop.dfs.ChecksumDistributedFileSystem.java
> - hadoop.dfs.HftpFilesystem.java
> - hadoop.dfs.protocol.* - the client side protocol
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