AMQ224078 The size of duplicate cache detection WARN message on JBoss EAP 7

Solution Verified - Updated -


  • I'm seeing the following WARN message on a load balancing cluster. What causes this WARN message?
WARN  [org.apache.activemq.artemis.core.server] (Thread-0 (ActiveMQ-client-global-threads)) AMQ224078: The size of duplicate cache detection (<id_cache-size/>) appears to be too large 20,000. It should be no greater than the number of messages that can be squeezed into conformation buffer (<confirmation-window-size/>) 1,048,576.


  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 7.2.2

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