Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/17078#discussion_r103342317
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
---
@@ -1431,7 +1431,12 @@ private class LogisticAggregator(
private var weightSum = 0.0
private var lossSum = 0.0
- private val gradientSumArray = Array.fill[Double](coefficientSize)(0.0D)
+ @transient private lazy val coefficientsArray = bcCoefficients.value
match {
--- End diff --
Can you have the type of `coefficientsArray` so people can clear know that
it's a primitive array?
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