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From Marcelo Jabali <>
Subject Re: Long time persistence service
Date Mon, 25 Jul 2011 21:26:35 GMT
That seems to be caused by a flow control condition. Take a look on this:

Hope this helps,


On Jul 25, 2011, at 11:37 AM, pol_ice wrote:

> Hi there,
> Let me first describe the way I am planning to use activemq for my service.
> The service provides API for its clients and guarantees to notify anybody
> interested in the changes happened to its data. For example if new user is
> created, every API user should be able to be notified about it and query for
> new information if they want to (or handle the notification any other way).
> To implement these notifications I use activemq. Notifications are sent as
> persistent messages to the associated topics, e.g. "Service.User" and
> therefore everyone who wants to stay notified about new users can simply
> implement the durable consumer to receive messages from that topic.
> There are not many topics I need, but the volume of messages might be quite
> high - I am expecting around 100-200k notification per day for the very
> beginning and be able to increase this number drastically when deploying to
> production.
> Having implemented the above scenario I seem to face a problem of
> limitations of some sort.
> The service is developed in C#.Net and Apache.NMS and ActiveMQ is installed
> on Windows Server machine.
> I didn't have time to optimize my code and I do create a new
> connection/session/producer for every single notification sent. But it's not
> an issue since for the moment I am not concerned about this sort of
> performance.
> The problem I have that when running my functional tests it seems I am not
> able to send messages to activemq once it reaches around 20k of messages. It
> just hangs and results in a timeout for my transaction (40 secs). It gets
> resolved when I remove all topics' messages at
> http://localhost:8161/admin/topics.jsp admin page.
> Can you please point me to the right actviemq configuration I should use for
> my case? 
> What can be the reason of the problem I am facing?
> Any overall suggestions are welcome as well! 
> Thanks in advance.
> --
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