title: Session Replication in Tomcat
body: <p>We have two separated servers and configured with Delta session manager to replicate session between two servers. The replication between them was successful and if I down any one of the server it works fine, but it always shows an error at catalina.out that </p>
  
  <blockquote>
    <p>object are not serialized</p>
  </blockquote>