Sorry guys. I edit the post.

I want to cluster 2 Tomcat servers with an Apache server. However, I have no luck getting them to do the session replication. Got them to do failover though! and take off the cluster settings.

My question is I receive the error:
Oct 13, 2005 2:19:23 AM org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /jsp-examples from URL file:/srv/www/tomcat5/base/webapps/jsp-examples
Oct 13, 2005 2:19:23 AM org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /tomcat-docs from URL file:/srv/www/tomcat5/base/webapps/tomcat-docs
Oct 13, 2005 2:19:23 AM org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /webdav from URL file:/srv/www/tomcat5/base/webapps/webdav
Oct 13, 2005 2:19:24 AM org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /balancer from URL file:/srv/www/tomcat5/base/webapps/balancer
Oct 13, 2005 2:19:24 AM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Oct 13, 2005 2:19:24 AM org.apache.catalina.core.StandardContext start
SEVERE: Context startup failed due to previous errors
Oct 13, 2005 2:19:24 AM org.apache.jk.common.ChannelSocket init
INFO: JK2: ajp13 listening on /0.0.0.0:12009
Oct 13, 2005 2:19:25 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=4/448 config=/usr/share/tomcat5/conf/jk2.properties
Oct 13, 2005 2:19:25 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 7462 ms

The Tomcat servers seem running even though receive this SEVERE error!
Anyone have any comment?