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https://issues.apache.org/jira/browse/SPARK-20950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16032692#comment-16032692
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Apache Spark commented on SPARK-20950:
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User 'heary-cao' has created a pull request for this issue:
https://github.com/apache/spark/pull/18174
> Improve Serializerbuffersize and filebuffersize configurable
> ------------------------------------------------------------
>
> Key: SPARK-20950
> URL: https://issues.apache.org/jira/browse/SPARK-20950
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core, SQL
> Affects Versions: 2.2.0
> Reporter: caoxuewen
>
> 1.With spark.shuffle.file.buffer configure fileBufferSizeBytes of
> UnsafeExternalSorter .
> 2.With spark.shuffle.sort.initialSerBufferSize configure SerializerBufferSize
> of UnsafeShuffleWriter.
> 3.Remove outputBufferSizeInBytes and inputBufferSizeInBytes to initialize in
> mergeSpillsWithFileStream function.
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