We use a Linux system and we set the maximum memory size for the tomcat java process, so we can not increase it. -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeAgentImpl-memory-leak-5-5-0-Final-tp4028798p4028820.html Sent from the Drools: User forum mailing list archive at Nabble.com.