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https://issues.apache.org/jira/browse/SPARK-27665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16932833#comment-16932833
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koert kuipers commented on SPARK-27665:
---------------------------------------

oh wait i didnt realize there is a setting.... 
spark.shuffle.useOldFetchProtocol 
never mind! i will try that

> Split fetch shuffle blocks protocol from OpenBlocks
> ---------------------------------------------------
>
>                 Key: SPARK-27665
>                 URL: https://issues.apache.org/jira/browse/SPARK-27665
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.4.0
>            Reporter: Yuanjian Li
>            Assignee: Yuanjian Li
>            Priority: Major
>             Fix For: 3.0.0
>
>
> As the current approach in OneForOneBlockFetcher, we reuse the OpenBlocks 
> protocol to describe the fetch request for shuffle blocks, and it causes the 
> extension work for shuffle fetching like SPARK-9853 and SPARK-25341 very 
> awkward. We need a new protocol only for shuffle blocks fetcher.



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