Hi we use Apache Tomcat/7.0.23 liferay-portal-6.1.0-ce-ga1
in catalina.out i find
/social-networking-portlet] appears to have started a thread named [Replication Thread] but has failed to stop it. This is very likely to create a memory leak.
org.apache.catalina.loader.WebappClassLoader clearReferencesThreads

What can or should i do, not to run in OutOfMemory in production?

Any help or ideas would be greatly appreciated

Frank