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Date: Wed, 27 Mar 2013 07:46:41 +0100
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Subject: Re: can we combine message groups and jms selectors
From: Daniel Guggi <daniel.guggi@gmail.com>
To: users@activemq.apache.org
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thank your for your info.

would i work in theory for my case  (because i ensure that all messages
with same JMSXGroupID will have same Priority) or would it work generally
(even when messages with same JMSXGroupID have different priorities - dont
know if that really makes sense tough...)?

yes, we also consider using two queues instead of one queue with
selectors...

Can u please explain whay consumers my get stuck with sparse selector?

tia,
daniel


On Wed, Mar 27, 2013 at 2:59 AM, SuoNayi <suonayi2006@163.com> wrote:

> seems work in theory.
> Why not using two queues to send the different messages?
> It's more easy for problem diagnosis if some trouble is present.
> Besides, Do not use sparse selector or your consumers may get stuck.
>
>
>
>
> At 2013-03-26 22:58:29,"Daniel Guggi" <daniel.guggi@gmail.com> wrote:
> >hi,
> >
> >im curious if it is possible to use message-groups and jms selectors
> >together.
> >
> >example:
> >
> >i have consumer 'normalPriorityConsumer' for queue "X" with selector
> >'JMSProperty >= 4'
> >i have consumer 'lowPrioritiyConsumer' for queue "X" with selector
> >'JMSProperty < 4'
> >
> >all messages send to queue "X" will have the JMSXGroupID header set.
> >
> >would activemq be capable of sending to the appropriate consumer based on
> >the priority?
> >
> >in my scenario this might work, because we ensure that for a given
> >jmsxGroupID the priority is always the same for all messages...
> >
> >ty,
> >daniel
>

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