[UIMA-2038] UIMA AS process does not terminate reliably

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.1AS
• Fix Version/s: 2.3.1AS
• Component/s: Async Scaleout
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 08/Feb/11 16:49
• Updated: 01/Mar/11 16:22
• Resolved: 01/Mar/11 16:22

Description

UIMA AS two stop options dont seem to work reliably. Neither 's' nor 'q' on the command line force a clean shutdown of the process. Actually, there is also a related problem. Namely, when the shutdown succeeds it appears that the Shared Connection that all Spring listeners use is not closed which leads to an ugly exception on the broker console. This happens every time the service is terminated. Review listeners shutdown code and make sure that when the last listener terminates the connection is stopped before the process exits. Also, make sure that uima threads from custom pools are daemon threads to allow the jvm to collect them on shutdown. NOTE: AMQ version 4.x internal threads are not daemon threads and there is special code in the listener to wait for them to stop before exiting. Newer AMQ version use daemon threads so shutting down AMQ is much more reliable.