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https://issues.apache.org/jira/browse/SPARK-20950?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-20950:
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    Priority: Trivial  (was: Major)

[~heary-cao] please take more care in filling these out. This isn't Major

> Improve Serializerbuffersize configurable
> -----------------------------------------
>
>                 Key: SPARK-20950
>                 URL: https://issues.apache.org/jira/browse/SPARK-20950
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.2.0
>            Reporter: caoxuewen
>            Priority: Trivial
>
> 1.With spark.shuffle.sort.initialSerBufferSize configure SerializerBufferSize 
> of UnsafeShuffleWriter.
> 2.Remove outputBufferSizeInBytes and inputBufferSizeInBytes to initialize in 
> mergeSpillsWithFileStream function.



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