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https://issues.apache.org/jira/browse/HADOOP-7557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204742#comment-13204742
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Devaraj Das commented on HADOOP-7557:
-------------------------------------

bq. Why not just get rid of Writable and RpcEngine and hardwire protobuf from 
the top down? That would be easier to support and would be easier for folks to 
implement in other languages. Why have an implementation that pretends to be 
serialization independent? What advantages does that provide?

+1 on this. Let's phase out writable over time. It's good in theory to have a 
pluggable RPC engine but in practice it seems unlikely we'd have yet another 
impl.
                
> Make  IPC  header be extensible
> -------------------------------
>
>                 Key: HADOOP-7557
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7557
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Sanjay Radia
>            Assignee: Sanjay Radia
>         Attachments: HADOOP-7557.patch, IpcHeader.proto, ipcHeader1.patch, 
> ipcHeader2.patch
>
>


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