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From "Hiram Chirino" <hi...@hiramchirino.com>
Subject Re: activemq.prefetchSize behavior concerns in STOMP C client
Date Fri, 20 Oct 2006 13:39:06 GMT
Hey.. I just made some fixes recently to the stomp acking.. see:

http://svn.apache.org/viewvc?view=rev&revision=465990

This may fix it for ya.

On 10/20/06, James Strachan <james.strachan@gmail.com> wrote:
>
> Some background on prefetch...
>
> http://incubator.apache.org/activemq/what-is-the-prefetch-limit-for.html
>
> Is the Stomp client either accurately specifying auto-ack mode or
> acknowledging the messages? Irrespective of the client used; if you
> don't acknowledge the messages in the prefetch buffer, the broker
> refuses to send more when the buffer is full until it receives
> acknowledgements.
>
> On 10/19/06, Dhawan, Vikram (LNG-DAY) <vikram.dhawan@lexisnexis.com>
> wrote:
> > Hi,
> >
> >
> >
> > I am using STOMP C client with latest build available of AMQ (pre 4.0.2
> > 10/17 build). I have some questions about how prefetchSize is affecting
> > my client working. My STOMP C consumer is implemented in a way that once
> > it connected to the AMQ server it loops and reads all the messages in
> > the particular queue. And once all the messages are read it disconnects.
> >
> >
> >
> > What I am seeing here is if I have a prefetchSize value set then it only
> > reads messages up to the prefetchSize value and then it blocks at the
> > stomp_read call. If I don't have any prefetchSize value set then it
> > loops and stomp_read reads all the messages in the queue.
> >
> >
> >
> > But my Openwire java client doesn't behave similarly. Even if I have a
> > prefetchSize set to a small value in java client every nextMessage()
> > call gives me a message if there is any message in the queue.
> >
> >
> >
> > I am not sure why there is different in prefetchSize working in STOMP
> > and java client. Is this expected behavior?
> >
> >
> >
> > Any help would be appreciated.
> >
> >
> >
> > Thanks!
> >
> >
> >
> >
> >
> >
> >
> > Vik
> >
> >
> >
> >
> >
>
>
> --
>
> James
> -------
> http://radio.weblogs.com/0112098/
>



-- 
Regards,
Hiram

Blog: http://hiramchirino.com

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