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[SPARK-7100][MLLib] Fix persisted RDD leak in GradientBoostTrees #5669

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[SPARK-7100][MLLib] Fix persisted RDD leak in GradientBoostTrees #5669

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[SPARK-7100][MLLib] Fix persisted RDD leak in GradientBoostTrees
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Jim Carroll committed Apr 27, 2015
commit 45f4b03c4bc8f5e2fa06c84cb83ae5db97e6abec
8 changes: 6 additions & 2 deletions mllib/src/main/scala/org/apache/spark/mllib/tree/GradientBoostedTrees.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -177,9 +177,10 @@ object GradientBoostedTrees extends Logging {
treeStrategy.assertValid()

// Cache input
if (input.getStorageLevel == StorageLevel.NONE) {
val persistedInput = if (input.getStorageLevel == StorageLevel.NONE) {
input.persist(StorageLevel.MEMORY_AND_DISK)
}
true
} else false

timer.stop("init")

Expand Down Expand Up @@ -265,6 +266,9 @@ object GradientBoostedTrees extends Logging {

logInfo("Internal timing for DecisionTree:")
logInfo(s"$timer")

if (persistedInput) input.unpersist()

if (validate) {
new GradientBoostedTreesModel(
boostingStrategy.treeStrategy.algo,
Expand Down