[ARROW-2165] enhance AllocatorListener to listen for child allocator addition and removal

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.11.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18131
• Assignee: Vanco Buca
• Reporter: Vanco Buca
• Created: 15/Feb/18 21:11
• Updated: 11/Jan/23 07:19
• Resolved: 03/Oct/18 22:42

Description

AllocatorListener allows a BaseAllocator to track when users allocate memory. However, the structure of the users' allocators can't be tracked easily. 

I suggest an enhancement to the AllocatorListener: onNewChild(BufferAllocator) and onChildClosed(BufferAllocator)

Issue Links

• links to: GitHub Pull Request #2697