[QPID-7024] BDB HA - Group change thread-pool sized to availableProcessors +1

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: qpid-java-6.0.1, qpid-java-6.1
• Component/s: Broker-J
• Assignee: Unassigned
• Reporter: Keith Wall
• Created: 26/Jan/16 17:02
• Updated: 02/Oct/19 19:22
• Resolved: 05/Feb/16 09:26

Description

The BDB HA implementation internally uses a thread pool to process group change events. This thread pool is sized to Runtime.getRuntime().availableProcessors() + 1. On a machine with many cores, this will create a very large number of threads.

There is probably no reason why this thread pool needs to be quite so large. This problem does not cause a functional impact, but will consume more resources (threads + stack) than required.