Matei Zaharia created SPARK-11733:
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Summary: Allow shuffle readers to request data from just one mapper
Key: SPARK-11733
URL: https://issues.apache.org/jira/browse/SPARK-11733
Project: Spark
Issue Type: Sub-task
Reporter: Matei Zaharia
This is needed to do broadcast joins. Right now the shuffle reader interface
takes a range of reduce IDs but fetches from all maps.
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