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From Rob Davies <rajdav...@gmail.com>
Subject Re: How is the number of Consumers counted ?
Date Thu, 10 Jul 2008 13:00:02 GMT

On 10 Jul 2008, at 13:01, Borer Reynald wrote:

> Hello,
>
> I am using activeMQ for one of our projects where a Java applet is  
> used
> to consume messages from JMS queues. During our tests, we discovered
> that the number of consumers for each queue was not corresponding to  
> the
> number of connected clients but was way higher (not everytime indeed,
> but it seems that sometimes some clients do not disconnect properly  
> from
> the server because maybe the applets are killed, and the number of
> consumers is not decremented...). I double checked the values  
> displayed
> in the admin web page with the ones available through JMX to be sure,
> and they were the same.
>
> Is there a way to purge those dead consumers ? It does not seems to
> produce some loss of messages, so I guess that those consumers are
> correctly detected as invalid in the server. Maybe they are even  
> deleted
> and the number is not correctly set ?
>
> Thanks in advance for your answers,
> Reynald Borer
>

which transport protocol are you using ? - there are options on some  
of the transports (like tcp) - for specifying maxInactivityDuration -  
see
http://activemq.apache.org/configuring-wire-formats.html

cheers,

Rob


Rob Davies
'Go further faster with Apache Camel!'
http://rajdavies.blogspot.com/




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