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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4005) Cleanup and Document HDFS Client Intefaces and Protocol
Date Fri, 22 Aug 2008 23:04:44 GMT
Cleanup and Document HDFS Client Intefaces and Protocol
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                 Key: HADOOP-4005
                 URL: https://issues.apache.org/jira/browse/HADOOP-4005
             Project: Hadoop Core
          Issue Type: Improvement
          Components: dfs
            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
 * Remove Unnecessary datatypes
 ** Remove DFSFileInfo - FileStatus is sufficient.
 * Make the Client-Datanode streaming protocol concrete
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.

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