Question

我有一个连接到ActiveMQ（作为使用者）的Java进程。当我尝试彻底停止它时，它会引起问题。

该过程如下停止：

收到控制消息，要求停止该过程
使用者，会话和连接已关闭，等待已接收到的所有消息得到处理
最终日志消息已打印
进程关闭并且不再存在

如果尚未处理任何消息，则该过程似乎可以正常关闭。但是一旦收到消息，该过程就不会停止，而且我不确定为什么（最终的日志消息已打印）

我已经打印了一个线程转储以查看发生了什么，但是我不确定是什么导致了该问题：

Attaching to process ID 17264, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.201-b09
Deadlock Detection:

No deadlocks found.

Thread 20: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=59 (Compiled frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2 (Compiled frame)
 - sun.java2d.Disposer.run() @bci=3 (Interpreted frame)
 - java.lang.Thread.run() @bci=11 (Interpreted frame)

Locked ownable synchronizers:
    - None

Thread 19: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(long) @bci=78 (Interpreted frame)
 - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take() @bci=124 (Interpreted frame)
 - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take() @bci=1 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=149 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) @bci=26 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5 (Interpreted frame)
 - java.lang.Thread.run() @bci=11 (Interpreted frame)

Locked ownable synchronizers:
    - None

Thread 18: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(long) @bci=78 (Interpreted frame)
 - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take() @bci=124 (Interpreted frame)
 - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take() @bci=1 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=149 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) @bci=26 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5 (Interpreted frame)
 - java.lang.Thread.run() @bci=11 (Interpreted frame)

Locked ownable synchronizers:
    - None

Thread 17: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.util.TimerThread.mainLoop() @bci=201 (Interpreted frame)
 - java.util.TimerThread.run() @bci=1 (Interpreted frame)

Locked ownable synchronizers:
    - None

Thread 1: (state = BLOCKED)

Locked ownable synchronizers:
    - None

Thread 10: (state = BLOCKED)

Locked ownable synchronizers:
    - None

Thread 9: (state = BLOCKED)

Locked ownable synchronizers:
    - None

Thread 8: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=59 (Compiled frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2 (Compiled frame)
 - java.lang.ref.Finalizer$FinalizerThread.run() @bci=36 (Interpreted frame)

Locked ownable synchronizers:
    - None

Thread 7: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2 (Compiled frame)
 - java.lang.ref.Reference.tryHandlePending(boolean) @bci=54 (Compiled frame)
 - java.lang.ref.Reference$ReferenceHandler.run() @bci=1 (Interpreted frame)

Locked ownable synchronizers:
   - None

据我所见

线程8/20是垃圾收集器，正在等待收集某些东西
线程7也链接到垃圾收集器
线程18/19 ???
线程17是Timer实例，不确定谁启动了它

ActiveMQ版本： 5.15.4

ActiveMQConnectionFactory网址：故障转移：（tcp：// localhost：61616）？timeout = 3000＆maxReconnectAttempts = 10

没有其他特定参数

ActiveMQ-当我想停止Java进程时，它保持活动状态

0 个答案: