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From "james strachan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-729) Using a very simple producer and consumer messages are received in wrong order.
Date Mon, 03 Jul 2006 17:42:51 GMT
    [ https://issues.apache.org/activemq/browse/AMQ-729?page=comments#action_36513 ] 

james strachan commented on AMQ-729:
------------------------------------

Can you reproduce this on 4.0.1? 

> Using a very simple producer and consumer messages are received in wrong order.
> -------------------------------------------------------------------------------
>
>          Key: AMQ-729
>          URL: https://issues.apache.org/activemq/browse/AMQ-729
>      Project: ActiveMQ
>         Type: Test

>     Versions: 4.0 RC2
>  Environment: i386-pc-solaris2.10
>     Reporter: Dietrich Bollmann
>     Priority: Minor
>  Attachments: test.tar.gz
>
>
> * 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=consumer \
>     -Durl=tcp://localhost:61616 \
>     -DproducerCount=2 \
>     -DmessageCount=100000 \
>     consumer
> Start the producers:
>  
>   ant \
>     -DproducerName=producer1 \
>     -Durl=tcp://localhost:61616 \
>     -DproducerCount=2 \
>     -DmessageCount=100000 \
>     producer
>  
>   ant \
>     -DproducerName=producer2 \
>     -Durl=tcp://localhost:61616 \
>     -DproducerCount=2 \
>     -DmessageCount=100000 \
>     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
>    

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