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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9151) Include RPC error info in RpcResponseHeader instead of sending it separately
Date Fri, 04 Jan 2013 23:54:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544360#comment-13544360
] 

Eli Collins commented on HADOOP-9151:
-------------------------------------

I think we're making too much out of this issue. It's a small and minor cleanup. It's also
clearly an incompatible change - wire compatibility is just as important as API compatibility.
Aside from the fact that this isn't a good trade-off (break wire compatibility for a small
cleanup?) we explicitly discussed maintaining client wire compatibility after 2.0 on general@
and our release policy (http://wiki.apache.org/hadoop/Roadmap) covers this:

  "Thus every release with the same major version is both API and 'on the wire' compatible."

I'd be OK with this change for trunk/3.0, even though it would be a bummer if 3.0 clients
don't work with the previous major version.
                
> Include RPC error info in RpcResponseHeader instead of sending it separately
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-9151
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9151
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Sanjay Radia
>            Assignee: Sanjay Radia
>         Attachments: HADOOP-9151.patch
>
>


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