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https://issues.apache.org/jira/browse/MAPREDUCE-5787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13939955#comment-13939955
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Rajesh Balamohan commented on MAPREDUCE-5787:
---------------------------------------------
>>
Is setting CONTENT_LENGTH important? Even so, for doing it, we are reading the
index-record two times - once here and once while sending the output. This will
have performance impact.
>>
Yes, CONTENT_LENGTH is needed in the client side for keep alive. A placeholder
is needed to avoid computing the index-record 2 times. I will refactor and
post the patch asap.
> Modify ShuffleHandler to support Keep-Alive
> -------------------------------------------
>
> Key: MAPREDUCE-5787
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5787
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: nodemanager
> Affects Versions: 2.4.0
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Critical
> Labels: ShuffleKeepalive
> Attachments: MAPREDUCE-5787-2.4.0-v2.patch,
> MAPREDUCE-5787-2.4.0-v3.patch, MAPREDUCE-5787-2.4.0-v4.patch,
> MAPREDUCE-5787-2.4.0.patch
>
>
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