Andrew Or created SPARK-13524:
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Summary: Remove BroadcastManager
Key: SPARK-13524
URL: https://issues.apache.org/jira/browse/SPARK-13524
Project: Spark
Issue Type: Improvement
Components: Spark Core
Reporter: Andrew Or
It has two methods that we actually care about, broadcast and unbroadcast.
That's it. Also it doesn't make sense to create BroadcastManager on executors.
There's a flag in the constructor called `isDriver` but if you trace it
downstream it's not used anywhere!
TL;DR BroadcastManager is not needed and there's a lot of opportunity for clean
up here. This doesn't have to happen before 2.0.0 since it's all internal API.
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