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https://issues.apache.org/jira/browse/TEZ-3334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Eagles updated TEZ-3334:
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Attachment: TEZ-3334.2.patch
[~sseth], [~kshukla], [~jlowe], can you have a look at this v2 patch.
Ultimately, the input on this patch will get this ready for a TEZ-3334 branch
merge. So please review accordingly.
> Tez Custom Shuffle Handler
> --------------------------
>
> Key: TEZ-3334
> URL: https://issues.apache.org/jira/browse/TEZ-3334
> Project: Apache Tez
> Issue Type: New Feature
> Reporter: Jonathan Eagles
> Attachments: TEZ-3334.1.patch, TEZ-3334.2.patch
>
>
> For conditions where auto-parallelism is reduced (e.g. TEZ-3222), a custom
> shuffle handler could help reduce the number of fetches and could more
> efficiently fetch data. In particular if a reducer is fetching 100 pieces
> serially from the same mapper it could do this in one fetch call.
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