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From Rob Davies <rajdav...@gmail.com>
Subject Re: Multiple threads for ActiveMQ Connection
Date Wed, 21 May 2008 06:13:14 GMT
best thing to do would be to produce a small junit test case to  
replicate what you are doing and submit it as an issue on a jira.
That way we will be able to determine where the problem is and you'll  
be able to track progress


cheers,

Rob

http://open.iona.com/products/enterprise-activemq
http://rajdavies.blogspot.c

On 20 May 2008, at 20:07, mandira wrote:

>
> Thanks Filip for response.
>
> The OOM Error is not that relevant as is the no of threads that keeps
> increasing with the no of messages sent to the queue. Most of the  
> threads
> are in Net I/O or waiting state.
>
> Any idea what we could be doing wrong?
>
> Thank you,
> Mandira
>
>
> Filip Hanik - Dev Lists wrote:
>>
>> mandira wrote:
>>> We are using ActiveMQ for parallel processing - Some of parallelism
>>> achieved
>>> through JMS Listeners and some through multiple threads.
>>>
>>> While running the application after some time - we were always  
>>> getting
>>> "Out
>>> of Memory" Error
>>>
>> yeah, but what kind of OOME? there are many types
>>
>> Filp
>>> On profiling we notice a high number of threads being spawned and  
>>> the no
>>> of
>>> instances only increasing with time.
>>>
>>> We commented the code to "send" the message to queue and the  
>>> thread count
>>> became kind of steady. On further reading we discovered it is by  
>>> design
>>> as
>>> the transport is async as explained in this URL -
>>> http://open.iona.com/wiki/display/ProdInfo/Understanding+the+Threads+Allocated+in+ActiveMQ
>>> http://open.iona.com/wiki/display/ProdInfo/Understanding+the+Threads+Allocated+in+ActiveMQ
>>>
>>> But this only works for vm protocol. The broker, in our case,  
>>> would be
>>> running as a separate instance. What is the best option to reduce  
>>> the no
>>> of
>>> threads.
>>>
>>> We tried versions 5 and 5.1
>>> thank you,
>>> Mandira
>>>
>>
>>
>>
>
> -- 
> View this message in context: http://www.nabble.com/Multiple-threads-for-ActiveMQ-Connection-tp17328318s2354p17348259.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>


om/





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