Change default values of id-cache-size or confirmation-window-size for cluster connections ------------------------------------------------------------------------------------------ Key: WFLY-13063 URL: https://issues.redhat.com/browse/WFLY-13063 Project: WildFly Issue Type: Bug Components: Clustering Affects Versions: 19.0.0.Beta2 Reporter: Simon Priadka Assignee: Michal Petrov Priority: Major When establishing a new messaging cluster, default values of *id-cache-size* and *confirmation-window-size* are producing a *WARN* with following message: {code} 2020-02-04 21:35:20,228 WARN [org.apache.activemq.artemis.core.server] (Thread-2 (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 confirmation window buffer (<confirmation-window-size/>) 1,048,576. {code} According to the [method|https://github.com/apache/activemq-artemis/blob/3743bc9d9f39b0731f...] validating these values, this variable combination is "invalid"