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Date: Tue, 13 Apr 2010 13:41:28 -0400 (EDT)
From: "eric baldeschwieler (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-6659) Switch RPC to use Avro
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    [ https://issues.apache.org/jira/browse/HADOOP-6659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856512#action_12856512 ] 

eric baldeschwieler commented on HADOOP-6659:
---------------------------------------------

If we can get to agreement that the current RPC remains the default and that IDL work happens in a branch and that only after we have a reasonably complete backwards compat solution do we change to AVRO RPC by default, then I think we are good.

My concern is not with the already committed plugability, but with the change of the default RPC and incremental change over of the protocols.  Once that work starts, we are committed to finishing it and we can not do that in the timeframe of the next release IMO.  I'd love to be proven wrong in a branch...

Would we keep the plugable API once we make the transition?  Seems like plugable support of an IDL driven RPC will be hard / not valuable.  Thoughts?

> Switch RPC to use Avro
> ----------------------
>
>                 Key: HADOOP-6659
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6659
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Doug Cutting
>
> This is an umbrella issue for moving HDFS and MapReduce RPC to use Avro.

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