[PIG-4603] Classloader leak in SpillableMemoryManager

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.15.0
• Assignee: Rohini Palaniswamy
• Reporter: Gleb Smirnov
• Created: 15/Jun/15 14:24
• Updated: 18/Jun/15 20:34
• Resolved: 16/Jun/15 21:26

Description

In the constructor of SpillableMemoryManager, a NotificationListener is added to the MemoryMXBean. This listener is never removed, even if the application is re-deployed.

This results in the instance SpillableMemoryManager being still reachable after a redeploy. This results in its class being reachable, which results in the classloader being reachable, along with all the classes in it.

This leads to metaspace OutOfMemoryErrors.