Nathan Howell created SPARK-10064:
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Summary: Decision tree continuous feature binning is slow in large
feature spaces
Key: SPARK-10064
URL: https://issues.apache.org/jira/browse/SPARK-10064
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 1.4.1
Reporter: Nathan Howell
When working with large feature spaces and high bin counts (>500) the binning
process can take many hours. This is particularly painful because it ties up
executors for the duration, which is not shared-cluster friendly.
The binning process can and should be performed on the executors instead of the
driver.
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