Sital Kedia created SPARK-15958:
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Summary: Make initial buffer size for the Sorter configurable
Key: SPARK-15958
URL: https://issues.apache.org/jira/browse/SPARK-15958
Project: Spark
Issue Type: Bug
Affects Versions: 2.0.0
Reporter: Sital Kedia
Currently the initial buffer size in the sorter is hard coded inside the code
(https://github.com/apache/spark/blob/master/sql/catalyst/src/main/java/org/apache/spark/sql/execution/UnsafeExternalRowSorter.java#L88)
and is too small for large workload. As a result, the sorter spends
significant time expanding the buffer size and copying the data. It would be
useful to have it configurable.
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