Reynold Xin created SPARK-2727:
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Summary: HashShuffleReader should do in-place sort
Key: SPARK-2727
URL: https://issues.apache.org/jira/browse/SPARK-2727
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 1.0.0, 1.0.3
Reporter: Reynold Xin
Assignee: Reynold Xin
HashShuffleReader uses sortWith to sort an array, which creates a copy of the
array. We can use an in-place sort algorithm to reduce the memory overhead.
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