DjvuLee created SPARK-17500:
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Summary: The DiskBytesSpilled metric in ExternalMerger &&
ExternalGroupBy is wrong
Key: SPARK-17500
URL: https://issues.apache.org/jira/browse/SPARK-17500
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 2.0.0, 1.6.2, 1.6.1, 1.6.0
Reporter: DjvuLee
The DiskBytesSpilled metric in ExternalMerger && ExternalGroupBy is increment
by file size in each spill, but we only need the file size at the last time.
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