Active MQ - monitor non-deliverable message and failover

check this link for reference
https://activemq.apache.org/message-redelivery-and-dlq-handling

the idea is to monitor none deliverable messages , and log them into Dead Letter Queue (DLQ).
just add this part into activemq.xml

<policyentry queue="&gt;"> <deadletterstrategy> <shareddeadletterstrategy processnonpersistent="true"> </shareddeadletterstrategy></deadletterstrategy> </policyentry>


auto ActiveMQ.DLQ queue will created with the none deliverable messages.

failover queue.
the idea is to have extra activemq server ,(as slave) so if the main active mq is down all the messsages redirect to the "slave"
reference https://activemq.apache.org/failover-transport-reference.html

just use such url  e.g.
failover:(tcp://localhost:61616,tcp://remotehost:61616)?initialReconnectDelay=100


to use order queue and not randomize queue , add randomize=false
e.g.

failover:(tcp://primary:61616,tcp://secondary:61616)?randomize=false

enjoy 
Yaniv Tzanany