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https://issues.apache.org/jira/browse/HADOOP-7776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141356#comment-13141356
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Doug Cutting commented on HADOOP-7776:
--------------------------------------
Sanjay, yes, I agree that extensibility can be added later by changing the
version number. Such a change would not be forward compatible. Once
extensibility is added then forward-compatible changes to per-request metadata
will be possible, but perhaps that's not your goal at this point.
It seemed to me that, as long as you're re-writing the code that processes
headers, and you intend to rewrite it again soon to make it extensible
(HADOOP-7557) then we might combine these two steps in order to avoid debugging
code that we'll soon discard. But if you'd prefer to implement these steps
sequentially that's fine too. Or do I misunderstand the relationship between
this and HADOOP-7557?
> Make the Ipc-Header in a RPC-Payload an explicit header
> -------------------------------------------------------
>
> Key: HADOOP-7776
> URL: https://issues.apache.org/jira/browse/HADOOP-7776
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
> Attachments: RpcPayLoadHeader.java, rpcPayload1.patch,
> rpcPayload2.patch, rpcPayload3.patch
>
>
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