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Date: Tue, 19 Jan 2010 08:25:13 -0800 (PST)
From: moreno9000 <moreno.mauri@italtel.it>
To: users@activemq.apache.org
Subject: Re: Thread for each client
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Hi rajdavies,
I see a lot of threads like this one:

"JMX server connection timeout 6925" daemon prio=10 tid=0x08faf000
nid=0x2759 in Object.wait() [0xac0ae000..0xac0af130]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0xd5fcec60> (a [I)
	at com.sun.jmx.remote.internal.ServerCommunicatorAdmin$Timeout.run(Unknown
Source)
	- locked <0xd5fcec60> (a [I)
	at java.lang.Thread.run(Unknown Source)

Thanks
Moreno


rajdavies wrote:
> 
> Hi moreno,
> 
> can you take a stack trace of the broker ? - the threads should be  
> getting garbage collected
> 
> thanks,
> 
> Rob
> On 19 Jan 2010, at 10:37, moreno9000 wrote:
> 
>>
>> I confirm Marcin's problem (with AMQ 5.3).
>>
>> One producer (java application with transport=openwire)
>> For each message producer open a Connection, send a msg, close the
>> Connection.
>>
>> Server side no problem for what concern file descriptors opened,
>> memory usage, socket opened (with netstat I see all conn=ESTABLISHED).
>>
>> Problems with threads.
>>
>> A new thread is created (inside AMQ) for every producer's open-send- 
>> close.
>> Threads don't disappear even if producer call connection.close()
>> (they disappear after 20-30 seconds from producer's death).
>>
>> In activemq.xml I set producerFlowControl=false,  
>> transport.closeAsync=false.
>>
>> AMQ run with these options:
>> -Xmx1024M, -Dorg.apache.activemq.UseDedicatedTaskRunner=false.
>>
>> Producer set jms.useAsyncSend=false.
>>
>> Are there other configurations I can try to stop thread's increment?
>>
>> Many thanks
>> Moreno
>>
>>
>>
>>
>> marcin80 wrote:
>>>
>>> Hi,
>>>
>>> I'm using ActiveMQ 5.2 and I've noticed thad ActiveMQ create new  
>>> thread
>>> for every connection but even the client will disconnect its thread  
>>> still
>>> alive (state RUNNABLE). It is ActiveMQ normal behavior?
>>> Can I change this? I would like to finalize thread if client will
>>> dissconnect.
>>>
>>> Cheers,
>>> Marcin
>>>
>>
>> -- 
>> View this message in context:
>> http://old.nabble.com/Thread-for-each-client-tp27126558p27223897.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
> 
> Rob Davies
> http://twitter.com/rajdavies
> I work here: http://fusesource.com
> My Blog: http://rajdavies.blogspot.com/
> I'm writing this: http://www.manning.com/snyder/
> 
> 
> 
> 
> 
> 
> 

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