如何配制memcashed-session-manager?

我在TOMCAT，service配制。<Context path="" docBase="ROOT">   
  <Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"  
    memcachedNodes="n1:localhost:11211 n2:localhost:11212"  
    failoverNodes="n2"  
    requestUriIgnorePattern=".*\.(png|gif|jpg|css|js)$"  
    sessionBackupAsync="false"  
    sessionBackupTimeout="100"  
    copyCollectionsForSerialization="false"  
   transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"  
    customConverter="de.javakaffee.web.msm.serializer.kryo.JodaDateTimeRegistration"  
    />   
</Context>  JAR包也导了。
MYECLIPSE启动如下警告！
2011-8-31 9:25:16 org.apache.catalina.core.AprLifecycleListener init
信息: Loaded APR based Apache Tomcat Native library 1.1.20.
2011-8-31 9:25:16 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context/Manager'.
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context'.
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context/Manager'.
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context'.
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context/Manager'.
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context'.
2011-8-31 9:25:16 org.apache.tomcat.util.digester.Digester endElement
警告:   No rules found matching 'Server/Service/Context'.
请教高手：如何配制，测试，使用？