Jianfei Wang created SPARK-18735:
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Summary: Why don't we destroy the broadcast variable after each
iteration?
Key: SPARK-18735
URL: https://issues.apache.org/jira/browse/SPARK-18735
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 2.0.2
Reporter: Jianfei Wang
I think we should destroy the broadcast variable bcWeights explicitly in
spark.mllib.GradientDescent.runMiniBatchSGD
see the code below:
while (!converged && i <= numIterations) {
val start = System.nanoTime()
val bcWeights = data.context.broadcast(weights)
// some other code
}
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