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https://issues.apache.org/jira/browse/TEZ-4088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16945765#comment-16945765
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Rajesh Balamohan commented on TEZ-4088:
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Initial patch. Will create a PR after ptests.
> Create in-memory ifile writer for transferring smaller payloads (follow up of
> TEZ-4075)
> ---------------------------------------------------------------------------------------
>
> Key: TEZ-4088
> URL: https://issues.apache.org/jira/browse/TEZ-4088
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Major
> Attachments: TEZ-4088.1.patch
>
>
> TEZ-4075 enabled data transfer over DME for smaller payloads. This helps in
> reducing shuffle.
> However, it still incurs disk IO cost (+flush) in producer side. It would be
> good to retain smaller payloads in mem, so that disk IO costs can be saved.
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