I recently upgraded to version 4.2.3 of Openfire and noticed a recurring message in the logs:
2018.04.03 13:13:12 WARN [socket_c2s-thread-17]: org.jivesoftware.util.cache.DefaultCache - LDAP UserDN cache was full, shrinked to 90% in 0ms.
2018.04.03 13:13:20 WARN [socket_c2s-thread-10]: org.jivesoftware.util.cache.DefaultCache - UserDN LDAP cache was full, shrinked to 90% in 1ms.
I was not aware of this LDAP UserDN cache in previous versions and from what I saw the same is always reaching the limit.
Is there a way to increase the LDAP UserDN cache? If yes, what property to change?