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https://issues.apache.org/jira/browse/TEZ-2001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14328628#comment-14328628
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Gopal V commented on TEZ-2001:
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bq. Isnt straggler mitigation one of the primary motivations for this?
No, we aren't aiming this at stragglers - the issue is skewed data itself.
Running a skewed task again on a different node is probably not going to make
it any faster to complete.
Speculation is unlikely to be successful in scenarios with significant skew.
> Support pipelined data transfer for ordered output
> --------------------------------------------------
>
> Key: TEZ-2001
> URL: https://issues.apache.org/jira/browse/TEZ-2001
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: TEZ-2001.1.patch, TEZ-2001.2.patch
>
>
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