[IGNITE-11654] [ML]: Fix memory leak in KNNClassificationModel

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.7
• Fix Version/s: 2.8
• Component/s: ml
• Release Note: Fix memory leak in KNNClassificationModel
• Ignite Flags: Release Notes Required
• Assignee: Alexey Zinoviev
• Reporter: Anton Dmitriev
• Created: 29/Mar/19 09:28
• Updated: 14/Jan/20 09:04
• Resolved: 03/Apr/19 10:32

Description

KNNClassificationModel acquires datasets which keeps resources within the cluster, but doesn't close it. As result of that we have a memory leak because resources allocated for dataset are not collected.

Issue Links

• links to: GitHub Pull Request #6392
• links to: TC Build