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From "Hiram Chirino" <hi...@hiramchirino.com>
Subject Re: java.lang.OutOfMemoryError: unable to create new native thread on AMQ 5.0
Date Fri, 16 May 2008 13:19:39 GMT
Enabling that enables thread pooling.  It just increases context
switching a bit.

Still it would be nice if you could create a test case that shows the
problem and submit it so we can get to the root of the problem.

Regards,
Hiram

On Thu, May 15, 2008 at 5:54 PM, Sridhar2008 <activemq@komandur.com> wrote:
>
>
> Hi Hiram,
>
> We were having similar issue and  confirmed the following
> (-Dorg.apache.activemq.UseDedicatedTaskRunner=false) works for us.
>
> What are the implications of doing this ?
>
> Thanks
> - Sridhar
>
>
> Hiram Chirino wrote:
>>
>> Could you try updating your activemq startup script so that instead of:
>> ACTIVEMQ_OPTS="-Xmx512M -Dorg.apache.activemq.UseDedicatedTaskRunner=true"
>> it reads as:
>> ACTIVEMQ_OPTS="-Xmx512M
>> -Dorg.apache.activemq.UseDedicatedTaskRunner=false"
>>
>> I think that should help with your thread usage issues.
>>
>>
>> On Tue, May 13, 2008 at 9:03 AM, Danilo Tuler <tuler@ideais.com.br> wrote:
>>>
>>> Hi,
>>>
>>> I have this problem too. It happens with AMQ 5.0.0 and 5.1.0. Works fine
>>> with 4.1.1 and 4.1.2.
>>> I can see the number of threads using the windows task manager, and it's
>>> not
>>> good :-) +2000 threads.
>>>
>>> My client application is a producer, and it sends thousands of messages
>>> to
>>> thousands of differents topics. There are no subscribers to those topics.
>>> Async send is set to false. Even when the client application is shutdown
>>> the
>>> threads are kept alive.
>>>
>>> There is surely a thread leak, and maybe there is a direct relationship
>>> with
>>> the number of topics created.
>>>
>>> I've read several topics here, JIRA issues, and an article about AMQ
>>> thread
>>> handling, but did not come out with a clue.
>>>
>>> Best regards,
>>> Danilo
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/java.lang.OutOfMemoryError%3A-unable-to-create-new-native-thread-on-AMQ-5.0-tp17005441s2354p17207910.html
>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>>
>>
>>
>>
>> --
>> Regards,
>> Hiram
>>
>> Blog: http://hiramchirino.com
>>
>> Open Source SOA
>> http://open.iona.com
>>
>>
>
> --
> View this message in context: http://www.nabble.com/java.lang.OutOfMemoryError%3A-unable-to-create-new-native-thread-on-AMQ-5.0-tp17005441s2354p17263408.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>



-- 
Regards,
Hiram

Blog: http://hiramchirino.com

Open Source SOA
http://open.iona.com

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