Yang Yang created SPARK-20414:
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Summary: avoid creating only 16 reducers when calling topByKey()
Key: SPARK-20414
URL: https://issues.apache.org/jira/browse/SPARK-20414
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 2.1.0, 2.0.2, 2.0.1, 2.0.0, 1.6.3, 1.6.2, 1.6.1, 1.6.0,
1.5.2
Reporter: Yang Yang
Priority: Minor
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