Thanks for the response Rob, I'll give it a try.
Switch to AMQ 5.0 - release candidate is here: http://people.apache.org/~chirino/apache-activemq-5.0.0-RC3/maven2/ org/apache/activemq/apache-activemq/5.0.0/ maven 2 repo: http://people.apache.org/~chirino/apache-activemq-5.0.0- RC3/maven2 maven 1 repo: http://people.apache.org/~chirino/apache-activemq-5.0.0- RC3/maven1 Message Producer flow control can be turned off in 5.0 - see: http:// activemq.apache.org/producer-flow-control.html - which is what's causing the slow down. You can set size limits on memory, temp storage and store too - e.g: <systemUsage> <systemUsage> <memoryUsage> <memoryUsage limit="10 mb" percentUsageMinDelta="20"/> </memoryUsage> <tempUsage> <tempUsage limit="100 mb"/> </tempUsage> <storeUsage> <storeUsage limit="1 gb" name="foo"/> </storeUsage> </systemUsage> </systemUsage> cheers, Rob http://open.iona.com/ -Enterprise Open Integration http://rajdavies.blogspot.com/ -- View this message in context: http://www.nabble.com/performance-issues-with-slow-consumers-tf4802510s2354.html#a13743744 Sent from the ActiveMQ - User mailing list archive at Nabble.com.