Under CA IDM 14.3 cluster on JBoss 7.2 app servers. Getting below warning in server logs.
12:24:43,332 WARN [org.apache.activemq.artemis.core.server] (Thread-16 (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/>) 32,000.
Release : 14.X
Component : IdentityMinder(Identity Manager)
The current default id-cache-size parameter is too high for clustered environments, which needs to be lowered. It is recommended to lower the id-cache-size to 2000 or to an adequate figure based on the message weight. The WARN message in question was added to notify users to change the default confirmation-window-size and default id-cache-size attributes in clustered environments to cater to their deployments. The id-cache-size and confirmation-window-size attributes are required to configure taking the average message weight into an account. The default confirmation-window-size in the cluster connection is 1048576 bytes (1MB).
Modify or Add the following in standalone-full-ha.xml to contain id-cache-size="2000" and restart the nodes
<server name="default" persistence-enabled="true" id-cache-size="2000">
Additionally for all occurrences of confirmation-window-size= set the value to "1048576"