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From "Bhushan Shelke (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-4663) Dead lock bwtween ActiveMQ Task and InactivityMonitor Async Task
Date Thu, 01 Aug 2013 15:21:49 GMT
Bhushan Shelke created AMQ-4663:
-----------------------------------

             Summary: Dead lock bwtween ActiveMQ Task and InactivityMonitor Async Task
                 Key: AMQ-4663
                 URL: https://issues.apache.org/jira/browse/AMQ-4663
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 5.5.1
         Environment: Cent Os 5.8 x 64
            Reporter: Bhushan Shelke


Got deadlock following is snippet thread dump

Deadlock Detection:

Found one Java-level deadlock:
=============================

"Camel Thread #0 - JmsConsumer[abc/SendQueue]":
 waiting for ownable synchronizer 0x0000000799ce4690, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@18b866d9"
"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@18b866d9":
  waiting to lock Monitor@0x00002aaabca91580 (Object@0x000000078822c168, a java/lang/Object),
  which is held by "Camel Thread #0 - JmsConsumer[abc/SendQueue]"

Found one Java-level deadlock:
=============================

"ActiveMQ Task-65635":
 waiting for ownable synchronizer 0x0000000796e194a0, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@9f25d81"
"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@9f25d81":
  waiting to lock Monitor@0x00002aaab87142b0 (Object@0x0000000796db8108, a java/lang/Object),
  which is held by "ActiveMQ Task-65635"

Found one Java-level deadlock:
=============================

"ActiveMQ Task-90985":
 waiting for ownable synchronizer 0x0000000799c683a0, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@561187fc"
"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@561187fc":
  waiting to lock Monitor@0x00002aaabcda2b60 (Object@0x00000007881e5290, a java/lang/Object),
  which is held by "ActiveMQ Task-90985"

Found one Java-level deadlock:
=============================

"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@29be1c47":
  waiting to lock Monitor@0x00002aaabd1be958 (Object@0x00000007988da1f0, a java/lang/Object),
  which is held by "ActiveMQ Task-83387"
"ActiveMQ Task-83387":
 waiting for ownable synchronizer 0x0000000799c0c778, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@29be1c47"

Found one Java-level deadlock:
=============================

"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@7e552ef2":
  waiting to lock Monitor@0x00002aaab76bb4a0 (Object@0x00000007988cdd00, a java/lang/Object),
  which is held by "ActiveMQ Task-83410"
"ActiveMQ Task-83410":
 waiting for ownable synchronizer 0x0000000799c05410, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@7e552ef2"

Found one Java-level deadlock:
=============================

"ActiveMQ Task-79893":
 waiting for ownable synchronizer 0x0000000799bde768, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@210cd391"
"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@210cd391":
  waiting to lock Monitor@0x00002aaabdbf60e0 (Object@0x00000007975a2a88, a java/lang/Object),
  which is held by "ActiveMQ Task-79893"

Found one Java-level deadlock:
=============================

"ActiveMQ Task-91581":
 waiting for ownable synchronizer 0x0000000799c73b58, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync),
 which is held by "InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@67485042"
"InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@67485042":
  waiting to lock Monitor@0x00002aaabc55da70 (Object@0x00000007988d3660, a java/lang/Object),
  which is held by "ActiveMQ Task-91581"

Found a total of 7 deadlocks.

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