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Message-ID: <af2843cd0605290936y40dc1b52me8576ca963f6bfa0@mail.gmail.com>
Date: Mon, 29 May 2006 12:36:57 -0400
From: "Hiram Chirino" <hiram@hiramchirino.com>
Sender: chirino@gmail.com
To: activemq-users@geronimo.apache.org
Subject: Re: Messages received in wrong order
In-Reply-To: <447ACAEE.4040103@web.de>
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References: <447ACAEE.4040103@web.de>

The Attachment did not make it.  Cou you open a JIRA and attach it at:
http://issues.apache.org/activemq/browse/AMQ

On 5/29/06, Dietrich Bollmann <dbollmann001@web.de> wrote:
> Hi,
>
> Thinking about a switch to a different JMS provider we are currently
> testing ActiveMQ. As the results of these tests might be interesting
> also for other people, I am posting here a protocol of a small failing te=
st:
>
> * Summary:
>
> Using a very simple producer and consumer (I appended the code to this
> message) the messages are received in the wrong order.
>
> The following setting produced problems in 7 of 10 cases:
>
>   - One broker
>   - Two producers sending 100000 messages each
>   - One consumer
>   - Broker, producers and consumer are all running on the same host.
>
> * Test protocol:
>
> Preparations:
>
>   gunzip test.tar.gz
>   tar xvf test.tar
>   cd test
>   ant compile
>
> Start the broker:
>
>   cd $ACTIVEMQ_HOME
>   bin/activemq
>
> Start the consumer:
>
>   ant \
>     -DconsumerName=3Dconsumer \
>     -Durl=3Dtcp://localhost:61616 \
>     -DproducerCount=3D2 \
>     -DmessageCount=3D100000 \
>     consumer
>
> Start the producers:
>
>   ant \
>     -DproducerName=3Dproducer1 \
>     -Durl=3Dtcp://localhost:61616 \
>     -DproducerCount=3D2 \
>     -DmessageCount=3D100000 \
>     producer
>
>   ant \
>     -DproducerName=3Dproducer2 \
>     -Durl=3Dtcp://localhost:61616 \
>     -DproducerCount=3D2 \
>     -DmessageCount=3D100000 \
>     producer
>
> * Results:
>
> Running the test 10 times the messages were received 3 times in the
> right order and 7 times in a mixed up fashion:
>
>    1. Succesfully received all messages
>    2. Wrong message order: Received message 33045 after message 33043
> from producer2
>    3. Wrong message order: Received message 97909 after message 97829
> from producer1
>    4. Wrong message order: Received message 67839 after message 67837
> from producer2
>    5. Wrong message order: Received message 63717 after message 63610
> from producer2
>    6. Succesfully received all messages
>    7. Wrong message order: Received message 61603 after message 61576
> from producer2
>    8. Wrong message order: Received message 51119 after message 49043
> from producer2
>    9. Succesfully received all messages
>   10. Wrong message order: Received message 99710 after message 99707
> from producer1
>
>
> Thanks
> --
> Dietrich Bollmann
>
>


--=20
Regards,
Hiram