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Date: Fri, 28 Aug 2009 23:05:15 -0700 (PDT)
From: "Rob Davies (JIRA)" <jira@apache.org>
To: dev@activemq.apache.org
Subject: [jira] Resolved: (AMQ-903) ActivemMQ slows down after a rather
 small number of messages
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     [ https://issues.apache.org/activemq/browse/AMQ-903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Davies resolved AMQ-903.
----------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 5.4.0)
                   5.3.0

Looks resolved in current release

> ActivemMQ slows down after a rather small number of messages
> ------------------------------------------------------------
>
>                 Key: AMQ-903
>                 URL: https://issues.apache.org/activemq/browse/AMQ-903
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 4.0.1
>            Reporter: Daniel Aioanei
>             Fix For: 5.3.0
>
>         Attachments: activemq.xml
>
>
> I have activemq with a postgresql backend running as a standalone server, and a client application that produces persistent messages in 50 threads. Each time I run my app it pushes as many msg as it can for about 62.5 seconds after which it quits. Although initially it works fast, every time I run my app it produces less messages:
> enqueue speed 50 threads: msg/second: 334.18333333333334
>              second time: msg/second: 194.15
>               third time: msg/second: 123.0
>              fourth time: msg/second: 58.61666666666667
>               fifth time: msg/second: 19.433333333333334
>               sixth time: msg/second: 33.81666666666667
>             seventh time: msg/second: 11.783333333333333
>               eigth time: msg/second: 24.733333333333334
>              ninght time: msg/second: 10.883333333333333
> After I ran the above test there seem to be 50241 msg in that queue.
> activemq=> select count(1) from activemq_msgs ;
>  count
> -------
>  50241
> (1 row)
> activemq=> select count(1) from activemq_acks ;
>  count
> -------
>      0
> (1 row)
> Note that I don't have any message consumers active for this test.
> Here is the way the client app connects:
> 	<bean id="jmsResourceAdapter"
> 		class="org.apache.activemq.ra.ActiveMQResourceAdapter">
> 		<property name="serverUrl" value="tcp://localhost:61616?wireFormat.cacheEnabled=false&amp;wireFormat.tightEncodingEnabled=false" />
> 	</bean>

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