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https://issues.apache.org/jira/browse/HDFS-379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved HDFS-379.
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Resolution: Fixed
> Cleanup and Document HDFS Client Intefaces and Protocol
> -------------------------------------------------------
>
> Key: HDFS-379
> URL: https://issues.apache.org/jira/browse/HDFS-379
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
>
> *Cleanup and Document HDFS Client Intefaces and Protocol*
> The HDFS Client Interface/Protocols are
> * Client to Namenode RPC protocol
> * Client to Datanode RPC protocol
> * Client to Datanode Streaming protocol
> *Work Items*
> * Cleanup FSConstants - HADOOP-4006
> * Remove Unnecessary datatypes
> ** Remove DFSFileInfo - FileStatus is sufficient. - HADOOP-4007
> * Make the Client-Datanode streaming protocol concrete - HADOOP-4008
> The message exchange could be made concrete by declaring message data types
> contains the fields being marshaled.
> * Declare the exceptions in the interface and also in class FileSystem and
> rethrow the encapsulated exception. HADOOP-4009
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