Tejas Patil created SPARK-16862:
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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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