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Posted to issues@spark.apache.org by "Tejas Patil (JIRA)" <ji...@apache.org> on 2016/08/03 01:00:34 UTC

[jira] [Created] (SPARK-16862) Configurable buffer size in `UnsafeSorterSpillReader`

Tejas Patil created SPARK-16862:
-----------------------------------

             Summary: Configurable buffer size in `UnsafeSorterSpillReader`
                 Key: SPARK-16862
                 URL: https://issues.apache.org/jira/browse/SPARK-16862
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 2.0.0
            Reporter: Tejas Patil
            Priority: Minor


`BufferedInputStream` used in `UnsafeSorterSpillReader` uses the default 8k buffer to read data off disk. This could be made configurable to improve on disk reads.

https://github.com/apache/spark/blob/master/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeSorterSpillReader.java#L53




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