NPE using weblogic.httpd.clustering.enable

Question

I'm having some difficulty trying to configure a cluster. If I set the
          property "weblogic.httpd.clustering.enable" to true I will get the attached
          NullPointerException. Where did I do wrong?
          Thanks for help.
          -- Jerry
          Tue Sep 26 14:09:13 PDT 2000:<I> <HTTP> Log rotation is size based
          Unable to initialize server: java.lang.NullPointerException
          fatal initialization exception
          java.lang.NullPointerException
          at weblogic.t3.srvr.HttpServer.start(HttpServer.java:398)
          at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:1305)
          at weblogic.t3.srvr.T3Srvr.main(T3Srvr.java:827)
          

Answer 1

          Dimitri Rakitine wrote:
          > I think what it means is that you do not need cluster license (and cluster enabled) to
          > use session persistence, and you do not need to set weblogic.httpd.clustering.enable to
          > use file or jdbc persistence.
          But I do need to use clustering and in order to do that
          I gotta have the weblogic.httpd.clustering.enable set to true among
          all other cluster related properties. What would be the point of using session persistence without
          actually running your servers in a cluster ?
          Right ??
          >
          >
          > Andrzej Porebski <[email protected]> wrote:
          >
          > > We are getting the same exact error (NPE). The reason for this error is null ClusterManager
          > > singleton in weblogic and the only way that thing can be null is if the clustered was not properly configured.
          > > Now, according to weblogic docs, if you use jdbc based session persistence, you should
          > > not have to have the so called "cluster" license for Weblogic but that does not seem
          > > to hold glue. We have configured the server to use the jdbc based session
          > > persistence but we still get the error
          >
          > > Wed Sep 27 14:59:11 EDT 2000:<E> <WebLogicServer> #########################################################
          > > Wed Sep 27 14:59:11 EDT 2000:<E> <WebLogicServer> ## Unable to join cluster: Unable to find a license for clustering
          > > Wed Sep 27 14:59:11 EDT 2000:<E> <WebLogicServer> #########################################################
          >
          > > during startup and then the NPE at the very end.
          >
          > > If any one has solved this problem please let me know.......
          >
          > > Thanks
          >
          > > Andrew
          >
          > > Dimitri Rakitine <[email protected]> wrote:
          > >>I think what Weblogic was trying to say (in a somewhat cryptic way)
          > >>is that you didn't set weblogic.cluster.enable=true property.
          > >>
          > >>Jerry Soung <[email protected]> wrote:
          > >>> I'm having some difficulty trying to configure a cluster. If I set the
          > >>> property "weblogic.httpd.clustering.enable" to true I will get the attached
          > >>> NullPointerException. Where did I do wrong?
          > >>
          > >>> Thanks for help.
          > >>
          > >>> -- Jerry
          > >>
          > >>> Tue Sep 26 14:09:13 PDT 2000:<I> <HTTP> Log rotation is size based
          > >>> Unable to initialize server: java.lang.NullPointerException
          > >>> fatal initialization exception
          > >>> java.lang.NullPointerException
          > >>> at weblogic.t3.srvr.HttpServer.start(HttpServer.java:398)
          > >>> at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:1305)
          > >>> at weblogic.t3.srvr.T3Srvr.main(T3Srvr.java:827)
          > >>
          > >>Dimitri
          > >>http://dima.dhs.org
          >
          > --
          > Dimitri
          > http://dima.dhs.org