Shushant Arora created SPARK-12524:
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Summary: Group by key in a pairrdd without any shuffle
Key: SPARK-12524
URL: https://issues.apache.org/jira/browse/SPARK-12524
Project: Spark
Issue Type: Improvement
Components: Build, Java API
Affects Versions: 1.5.2
Reporter: Shushant Arora
In a PairRDD<K,V>. When we are all values of same key are in same partition and
want to perform group by key locally and no reduce/aggregation operation
afterwords just further tranformation on grouped rdd. There is no facility for
that. We have to perform shuffle which is costly.
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