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https://issues.apache.org/jira/browse/MAPREDUCE-2707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067319#comment-13067319
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Jitendra Nath Pandey commented on MAPREDUCE-2707:
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This jira doesn't intend to remove writable from ipc.Client/Server. That is
proposed in a different jira (HADOOP-7399). This will just remove
TunnelProtocol but the protocol buffer messages will still be wrapped in a
generic Writable and passed to ipc Client.
When HADOOP-7399 is ready to go, ProtoOverHadoopRpcEngine will be modified
not to wrap request/response into Writable.
> ProtoOverHadoopRpcEngine without using TunnelProtocol over WritableRpc
> ----------------------------------------------------------------------
>
> Key: MAPREDUCE-2707
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2707
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Jitendra Nath Pandey
> Assignee: Jitendra Nath Pandey
>
> ProtoOverHadoopRpcEngine is introduced in MR-279, which uses TunnelProtocol
> over WritableRpcEngine. This jira removes the tunnel protocol and lets
> ProtoOverHadoopRpcEngine directly interact with ipc.Client and ipc.Server.
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