[AMQ-6065] Allow selective use of broker systemExitOnShutdown from DefaultIOExceptionHandler

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.12.0
• Fix Version/s: 5.13.0
• Component/s: Broker, Message Store
• Assignee: Gary Tully
• Reporter: Gary Tully
• Created: 27/Nov/15 14:18
• Updated: 30/Nov/15 13:25
• Resolved: 27/Nov/15 14:22

Description

the broker attribute systemExitOnShutdown is useful in a karaf container or shared vm where the broker is the primary occupant. If the broker dies, then the container should die.
For the broker, if the store dies, then the broker should die, but for other scenarios, like the broker is shutdown via jmx or for maintenance, exiting the container is not required.
Allowing the DefaultIOExceptionHandler, which gets to handle store exceptions, flip the systemExit bit allows a container to exit on this fatal condition. Ensuring that failover of the store can occur due the the exit of the jvm that has the store lock.
With karaf on windows, the file locker is not reliable on failback when the jvm remains active.