How to set the ActiveMQ redeliveryPolicy on a queue? - activemq

Question

How do I set the redeliveryPolicy in ActiveMQ on a Queue?
1) In the doc, see: activeMQ Redelivery, the explain that you should set it on the ConnectionFactory or Connection. But I want to use different value's for different Queue's.
2) Apart from that, I don't seem to get it work. Setting it on the connection factory in Spring (I am using activemq 5.4.2. with Spring 3.0) like this don't seem to have any effect:
<amq:connectionFactory id="amqConnectionFactory" brokerURL="${jms.factory.url}" >
<amq:properties>
<amq:redeliveryPolicy maximumRedeliveries="6" initialRedeliveryDelay="15000" useExponentialBackOff="true" backOffMultiplier="5"/>
</amq:properties>
</amq:connectionFactory>
I also tried to set it as property on the defined Queue, but that also seem to be ignored as the redelivery occurs sooner that the defined values:
<amq:queue id="jmsQueueDeclarationSnd" physicalName="${jms.queue.declaration.snd}" >
<amq:properties>
<amq:redeliveryPolicy maximumRedeliveries="6" initialRedeliveryDelay="15000" useExponentialBackOff="true" backOffMultiplier="5"/>
</amq:properties>
</amq:queue>
Thanks

Answer 1

I too was using the method shown by Ivan above for amq:connectionFactory
Whilst upgrading to ActiveMQ 5.7.0 I noticed this no longer works (since the implementation of https://issues.apache.org/jira/browse/AMQ-3224). Anyway after reading a better post on the ActiveMQ forums I currently use :-
<amq:queue id="emailQueue" physicalName="emailQueue" />
<amq:queue id="smsQueue" physicalName="smsQueue" />
<!-- Wait 15 seconds first re-delivery, then 45, 135, 405, 1215, 3645 seconds -->
<bean id="redeliveryPolicy" class="org.apache.activemq.RedeliveryPolicy">
<property name="backOffMultiplier" value="3" />
<property name="initialRedeliveryDelay" value="15000" />
<property name="maximumRedeliveries" value="6" />
<property name="queue" value="*" />
<property name="redeliveryDelay" value="15000" />
<property name="useExponentialBackOff" value="true" />
</bean>
<amq:connectionFactory id="jmsFactory" brokerURL="yourProtocol/BrokerURL">
<property name="redeliveryPolicy" ref="redeliveryPolicy" />
</amq:connectionFactory>
Note that for any messages that fail to be redelivered after 6 retries, ActiveMQ will create a DLQ.emailQueue' or DLQ.smsQueue and enqueue the message on that queue (dequeuing it from the original queue).

Answer 2

I got it working by setting it on the factory as done above but only when creating the connection factory as a Spring bean and not through XBean as shown above. This is because the xsd doesn't allow you to set the redeliveryPolicy as an object, but merely as a String.
After setting the cache level to Consumer in Spring's DefaultMessageListenerContainer, it all worked.
On the queue , it seems that you simple can set a delivery policy... Strange, as I would like to have different settings for different queue's/topics. Just imagine you have a slow and faster queue, or a external system that you connect to that needs more time to recover..
Maybe this feature is still to be implemented

Answer 3

You can set the redeliveryPolicy within the amq namespace like this:
<amq:connectionFactory id="jmsRedeliverConnectionFactory" brokerURL="vm://localhost">
<amq:redeliveryPolicy>
<amq:redeliveryPolicy maximumRedeliveries="5" initialRedeliveryDelay="1000" useExponentialBackOff="true" backOffMultiplier="5" />
</amq:redeliveryPolicy>
</amq:connectionFactory>

Answer 4

I could not get ActiveMQ (5.7.0) to recognize my redelivery policy when I defined it using <amq:properties> on the ConnectionFactory or the Queue (it kept using the default redelivery policy). What worked for me is this:
Create the RedeliveryPolicy as a standalone bean, then Spring-reference it in the ConnectionFactory
Create an explicit DLQ and Spring-reference it in the RedeliveryPolicy
Spring config as follows:
<amq:connectionFactory id="jmsFactory" brokerURL="vm://localhost" redeliveryPolicy="#activeMQRedeliveryPolicy" />
<amq:redeliveryPolicy id="activeMQRedeliveryPolicy" destination="#myDLQ" useExponentialBackOff="true" backOffMultiplier="3" maximumRedeliveries="4" />
<amq:queue id="myDLQ" physicalName="DLQ.myDLQ" />