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From sub3 <st...@subwest.com>
Subject Re: Under IO Load
Date Tue, 12 Aug 2008 12:28:49 GMT



bsnyder wrote:
> 
> On Mon, Aug 11, 2008 at 3:08 PM, sub3 <steve@subwest.com> wrote:
>>
>> I have a system where 1 is sending to several (a & b) and occasionally b
>> sends to c (all queues).  Very simple.  Persistence is set to false. 
>> Queue
>> sizes are capped at 50mb.
>>
>> If I put the system under a heavy i/o load (several programs
>> reading/writing
>> lots of files), ActiveMQ will stop.
>>
>> Am I hitting some system resource issue here, and if so, what is it? 
>> Also,
>> is there a way to get ActiveMQ to recover?
>>
>> I've attached my activemq.xml file, and a sample program to create i/o
>> load
>> (sometime I run several of these).  I am running on Windows Server 2003.
> 
> What happens with ActiveMQ under the same messaging load if you do not
> run the Test.java class in other JVMs?
> 
> Bruce
> -- 
> perl -e 'print
> unpack("u30","D0G)U8V4\@4VYY9&5R\"F)R=6-E+G-N>61E<D\!G;6%I;\"YC;VT*"
> );'
> 
> Apache ActiveMQ - http://activemq.org/
> Apache Camel - http://activemq.org/camel/
> Apache ServiceMix - http://servicemix.org/
> 
> Blog: http://bruceblog.org/
> 
> 

If I don't run Test.java, the system remains up & stable.  I've run it for
over a week as fast as possible w/o any problems.
-- 
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