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From Christian Posta <christian.po...@gmail.com>
Subject Re: Configuring common defaults for topics and queues.
Date Tue, 07 May 2013 15:42:07 GMT
Paul,

Looks like you have a policy for all queues and all topics too... So the
default policy won't get used for those destinations. I think you also have
to specify a "topic" or "queue" for default entry, even though it gets
ignored.


On Tue, May 7, 2013 at 8:09 AM, Paul Gale <paul.n.gale@gmail.com> wrote:

> Hi,
>
> In an attempt to DRY up my ActiveMQ configuration I realized that,
> according to the activemq-core schema, it's possible to configure common
> defaults for both topics and queues as shown in the snippet below. I have
> this defined in my activemq.xml currently.
>
> Whilst ActiveMQ does not fail the schema validation on startup I still
> don't know whether ActiveMQ has honored these settings or has ignored them.
> I have not come across any references to this method of configuring common
> defaults, nor do I have a way to verify that said configuration has taken
> effect the way I think it has, short of relying on any explicit logging
> statements. Would exploring ActiveMQ's MBeans via JMX be the best method
> for verification?
>
> Can one of the committers comment on the legality of this syntax?
>
> Thanks,
> Paul
>
> ____________________________________________________________________________________________________
>
>     <destinationPolicy>
>       <policyMap>
>         <defaultEntry>
>           <policyEntry producerFlowControl="false"
>                        advisoryWhenFull="true"
>                        advisoryForFastProducers="true"
>                        advisoryForSlowConsumers="true"
>                        advisoryForDiscardingMessages="true"
>                        optimizedDispatch="true">
>             <deadLetterStrategy>
>               <individualDeadLetterStrategy queuePrefix="DLQ."
>                                             topicPrefix="DLQ."
>                                             processExpired="false"
>                                             useQueueForQueueMessages="true"
>                                             useQueueForTopicMessages="true"
>
> destinationPerDurableSubscriber="false"/>
>             </deadLetterStrategy>
>             <dispatchPolicy>
>               <roundRobinDispatchPolicy/>
>             </dispatchPolicy>
>           </policyEntry>
>         </defaultEntry>
>         <policyEntries>
>           <policyEntry topic=">">
>             <dispatchPolicy>
>               <strictOrderDispatchPolicy/>
>             </dispatchPolicy>
>           </policyEntry>
>           <policyEntry queue=">" />
>         </policyEntries>
>       </policyMap>
>     </destinationPolicy>
>



-- 
*Christian Posta*
http://www.christianposta.com/blog
twitter: @christianposta

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