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Date: Wed, 2 Feb 2011 00:50:28 +0000 (UTC)
From: "Hairong Kuang (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] Commented: (HADOOP-6949) Reduces RPC packet size for
 primitive arrays, especially long[], which is used at block reporting
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    [ https://issues.apache.org/jira/browse/HADOOP-6949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12989477#comment-12989477 ] 

Hairong Kuang commented on HADOOP-6949:
---------------------------------------

Cool optimization! With this, shall we bump up rpc version number?

> Reduces RPC packet size for primitive arrays, especially long[], which is used at block reporting
> -------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6949
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6949
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>            Reporter: Navis
>            Assignee: Matt Foley
>             Fix For: 0.23.0
>
>         Attachments: ObjectWritable.diff, arrayprim.patch, arrayprim_v4.patch
>
>   Original Estimate: 10m
>  Remaining Estimate: 10m
>
> Current implementation of oah.io.ObjectWritable marshals primitive array types as general object array ; array type string + array length + (element type string + value)*n
> It would not be needed to specify each element types for primitive arrays.

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