Hi, did you find solution to this issue? I'm getting about 5000 lines in log per minute because of that.
Example:
...
14:36:33,220 WARN [org.drools.guvnor.server.repository.RulesRepositoryManager] (http-localhost-127.0.0.1-8080-28) Creating RulesRepository with default username.
14:36:33,220 INFO [stdout] (http-localhost-127.0.0.1-8080-28) =============== session-guest-11034
14:36:33,230 INFO [stdout] (http-localhost-127.0.0.1-8080-28) =============== session-guest-11034
14:36:33,230 WARN [org.drools.guvnor.server.repository.RulesRepositoryManager] (http-localhost-127.0.0.1-8080-28) Creating RulesRepository with default username.
14:36:33,230 INFO [stdout] (http-localhost-127.0.0.1-8080-28) =============== session-guest-11035
14:36:33,240 INFO [stdout] (http-localhost-127.0.0.1-8080-28) =============== session-guest-11035
14:36:33,240 WARN [org.drools.guvnor.server.repository.RulesRepositoryManager] (http-localhost-127.0.0.1-8080-28) Creating RulesRepository with default username.
14:36:33,250 INFO [stdout] (http-localhost-127.0.0.1-8080-28) =============== session-guest-11036
14:36:33,250 INFO [stdout] (http-localhost-127.0.0.1-8080-28) =============== session-guest-11036
...