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Posted to hdfs-dev@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/19 00:26:10 UTC
[jira] [Resolved] (HDFS-400) Make the Data transfer streaming
protocol concrete
[ https://issues.apache.org/jira/browse/HDFS-400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer resolved HDFS-400.
-----------------------------------
Resolution: Fixed
> Make the Data transfer streaming protocol concrete
> --------------------------------------------------
>
> Key: HDFS-400
> URL: https://issues.apache.org/jira/browse/HDFS-400
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Sanjay Radia
>
> The Data transfer between client and datanode and between datanode and datanode is a streaming
> protocol where messages and data is sent across a tcp connection.
> The messages are not concrete data types (ie they are not classes or interfaces), instead the fields are marshalled and unmarshalled in in various classes.
> The message exchange could be made concrete by declaring message data types and/or interfaces.
> This will help future automated versioning via protocol-buffers style approach. It will also help document the interface and can simplify the code.
>
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