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From Tim Bain <tb...@alumni.duke.edu>
Subject Re: Selective consuming of priority messages with message groups
Date Thu, 10 Dec 2015 15:35:33 GMT
I think that's exactly what's going on.  I didn't notice that line in your
code when you first posted it; sorry!
On Dec 10, 2015 7:28 AM, "frankie_hr" <franjo.zemunic@2e-systems.com> wrote:

> Hi All,
>
> Here's an update to the point Three:
>
> > Third, use a JMX viewer such as JConsole to look at the subscriptions on
> > that queue.  Find the subscription that isn't working (#1) and see
> whether
> > it's present and whether its selector looks correct.  See whether any
> > messages have been dispatched to it.
>
> I did try connecting with the jConsole to the local AMQ broker and indeed
> there are two Consumers for the queue: one with the selector
> "JMSPriority>=4" and one with "JMSPriority<4". After the messages were
> pushed to the queue, the second Consumer shows dispatch, as well as dequeue
> count of 2, while the first one shows a 0 for both of the values.
>
> My suspicion is that message groups have something to do with it. It seems
> as if a Thread #n was dedicated to process the message 1, and then (because
> of the same message group) it wanted to process the message 2 as well, but
> it couldn't because the message 2 was supposed to be processed by a
> different consumer because of the selector. Once the message 3 arrives
> (also
> having the same group), it was processed by Thread #n, since the consumer
> was the same as for message 1.
>
> Does this make any sense? Any comments?
>
> Regards,
> Frankie
>
>
>
> --
> View this message in context:
> http://activemq.2283324.n4.nabble.com/Selective-consuming-of-priority-messages-with-message-groups-tp4704813p4704850.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>

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