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https://issues.apache.org/jira/browse/TEZ-3334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15951631#comment-15951631
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Jonathan Eagles commented on TEZ-3334:
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Thanks, [~sseth]. I'll try to address these comments soon.
> 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
>
>
> 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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