I started testing this on a setup where I manually generate messages and I'm not able replicate the issue. I think it only happens if there is moderate load when failing over.
Here is the exact message that shows in the setup where I can replicate the issue: 2013-05-28 10:42:56,977 | INFO | DB recovered from failure. | org.apache.activemq.leveldb.LevelDBClient | ActiveMQ NIO Worker 93 This message shows up in my log after a failover when I delete the broken queue. After that message I have these: 2013-05-28 10:42:56,990 | WARN | Async error occurred: java.lang.IllegalArgumentException: The subscription does not exist: ID:xx03-35870-1369757354540-1:3:5:1 | org.apache.activemq.broker.TransportConnection.Service | ActiveMQ NIO Worker 29 java.lang.IllegalArgumentException: The subscription does not exist: ID:xx03-35870-1369757354540-1:3:5:1 at org.apache.activemq.broker.region.AbstractRegion.messagePull(AbstractRegion.java:432) at org.apache.activemq.broker.region.RegionBroker.messagePull(RegionBroker.java:468) at org.apache.activemq.broker.BrokerFilter.messagePull(BrokerFilter.java:87) -- View this message in context: http://activemq.2283324.n4.nabble.com/Activemq-5-9-leveldb-replication-issue-tp4667495p4667560.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.