That version of ActiveMQ is five and a half years old. It's possible that the behavior you're seeing is still a bug in the current version, but it's quite possible that it's been fixed in one of the nine minor releases (and more incidental releases) since then. Upgrading to a more recent version is probably a good idea.
In the meantime, you could go through the JIRA entries for the releases since 5.5.1 to see if any of them match the behavior you're seeing. Tim On Mar 13, 2017 7:18 PM, "bwen" <wenbin6...@gmail.com> wrote: All I have a strange issue with activemq. I see sometimes it re-deliver the same messages to consumers. Sometimes this happens the same day, some times it happens after couple days. Here are my setups: AMQ version 5.5.1 running active/backup mode using JDBC as persistent I can see messages are stored in activemq_msgs table. the url on consumer side is <value>failover:(${jms.broker1.uri},${jms.broker2. uri})?randomize=false&jms.prefetchPolicy.queuePrefetch= 1&maxReconnectAttempts=-1</value> Is there anyone else see the similar issues and know how to fix it? thanks in advance. -- View this message in context: http://activemq.2283324.n4. nabble.com/activemq-ramdomly-re-deliver-messages-to-consumer-tp4723731.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.