When trying to cluster Tomcat in the Enterprise Web Server I'm receiving NoClassDefFoundError: org/apache/catalina/tribes/MembershipListener

Solution Unverified - Updated -

Issue

  • Uncommented cluster related entry in file EWS_HOME/tomcat6/conf/server.xml
    <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
  • Seeing the following error in EWS_HOME/tomcat6/logs/catalina.out
    org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw error
java.lang.NoClassDefFoundError: org/apache/catalina/tribes/MembershipListener

Environment

  • Enterprise Web Server (EWS)
    • 1.x
    • 2.x
    • 3.x
  • Tomcat
    • 5.x
    • 6.x
    • 7.x
    • 8.x

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