Davies Liu created SPARK-4548:
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Summary: Python broadcast is very slow
Key: SPARK-4548
URL: https://issues.apache.org/jira/browse/SPARK-4548
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 1.2.0
Reporter: Davies Liu
Python broadcast in 1.2 is much slower than 1.1:
In spark-perf tests:
name 1.1 1.2 speedup
python-broadcast-w-set 3.63 16.68 -78.23%
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