[AMQ-4156] Inactivity monitor rejected from thread pool

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.5.1
• Fix Version/s: 5.8.0
• Labels: concurrency

Environment

VM name: Java HotSpot(TM) 64-Bit Server VM
VM Version: 23.1-b03
VM Vendor: Oracle Corporation

• Assignee: Timothy A. Bish
• Reporter: vilius
• Created: 02/Nov/12 18:05
• Updated: 05/Nov/12 10:59
• Resolved: 02/Nov/12 19:40

Description

2012/09/04 17:50:10.746 [UncaughtExceptionHandler] [InactivityMonitor WriteCheck]: ERROR: FATAL ERROR Uncaught Exception occurred in thread Thread[InactivityMonitor WriteCheck,5,main]
[Exception: java.util.concurrent.RejectedExecutionException: Task org.apache.activemq.transport.InactivityMonitor$3@321e23e9 rejected from java.util.concurrent.ThreadPoolExecutor@58c7afb3[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 441]
at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2013)
at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:816)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1337)
at org.apache.activemq.transport.InactivityMonitor.writeCheck(InactivityMonitor.java:147)
at org.apache.activemq.transport.InactivityMonitor$2.run(InactivityMonitor.java:113)
at org.apache.activemq.thread.SchedulerTimerTask.run(SchedulerTimerTask.java:33)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)
]

N.B. The system was not shutting down as far as I can see. It was on a VM, and the logs show a long idle gap before this excerpt. Which may mean the VM was paused, although gaps may occur in normal operation as well. I only have one log as evidence, although people have seen it a few more times apparently.