[SPARK-3918] Forget Unpersist in RandomForest.scala(train Method)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.2.0
• Component/s: MLlib
• Labels: decisiontree train unpersist

Environment

All

• Target Version/s: 1.2.0
• Assignee: Joseph K. Bradley
• Reporter: junlong
• Shepherd: paulbits
• Created: 12/Oct/14 11:59
• Updated: 11/Dec/14 17:02
• Resolved: 11/Dec/14 17:02

Description

In version 1.1.0 DecisionTree.scala, train Method, treeInput has been persisted in Memory, but without unpersist. It caused heavy DISK usage.
In github version(1.2.0 maybe), RandomForest.scala, train Method, baggedInput has been persisted but without unpersisted too.

Issue Links

• links to: [Github] Pull Request #2785 (jkbradley)