[jira] [Created] (AMQCPP-451) The number of CMS threads increases when we restart the message broker repeatedly

["Helen Huang (JIRA)" <ji...@apache.org>]

Helen Huang created AMQCPP-451:
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             Summary: The number of CMS threads increases when we restart the message broker repeatedly 
                 Key: AMQCPP-451
                 URL: https://issues.apache.org/jira/browse/AMQCPP-451
             Project: ActiveMQ C++ Client
          Issue Type: Bug
    Affects Versions: 3.5.0
         Environment: windows xp
            Reporter: Helen Huang
            Assignee: Timothy Bish
            Priority: Critical
             Fix For: 3.5.0


The number of CMS threads increases when we restart the message broker repeatedly. We have ten senders and ten receivers in out test. Every sender sends out 10-20 messages every second. We restart the broker every 1 minute. The number of threads in CMS grew from about 50 to 600 after about 15 hours of testing. The attached dump was created after we ran two hours of test. From the dump we find a large number of threads are stuck at the following place:

Function   Source 
ntdll!KiFastSystemCallRet    
ntdll!ZwWaitForSingleObject+c    
kernel32!WaitForSingleObjectEx+a8    
kernel32!WaitForSingleObject+12    
activemq_cppud!decaf::internal::util::concurrent::PlatformThread::interruptibleWaitOnCondition+25    
activemq_cppud!`anonymous namespace'::threadEntryMethod+9b    
msvcr80d!_callthreadstartex+51    
msvcr80d!_threadstartex+87    
kernel32!BaseThreadStart+37 


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