Matei Zaharia created SPARK-2032:
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Summary: Add an RDD.samplePartitions method for partition-level
sampling
Key: SPARK-2032
URL: https://issues.apache.org/jira/browse/SPARK-2032
Project: Spark
Issue Type: Improvement
Components: Spark Core
Reporter: Matei Zaharia
This would allow us to sample a percent of the partitions and not have to
materialize all of them. It's less uniform but much faster and may be useful
for quickly exploring data.
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