Clustering 5 wls

Question

Hello,
          I set up a cluster of 5 wls (451) with the default values, on
          a LAN, on 5 computers, same config.
          They joined the cluster together without any problem.
          But, when calling mulitple methods on a Stateless session bean,
          the time between calls were really slow: 4 to 10 seconds.
          I tested with 2 Wls only in a cluster. It does work, really fast.
          1. What did I miss?
          2. How to configure wls so that it does not renew contacts to
          other wls too often?
          Thierry
          

Answer 1

The short answer to #1 is to set the following tuneables on the client
          side:
          java -Dweblogic.system.executeThreadCount=10
          -Dweblogic.system.percentSocketReaders=50 <your client program>
          The default settings are 5 and 33. Thus the number of socket reading
          threads on the client was restricted to a maximum of 2 (33% of 5). As
          you discovered, this can cause problems when there are > 3 servers in
          the cluster.
          This has been documented in the tuning guide which is part of the WL5.1
          docs.
          Srikant, [email protected], http://www.weblogic.com/, etc.
          Thierry Janaudy wrote:
          > Hello,
          >
          > I set up a cluster of 5 wls (451) with the default values, on
          > a LAN, on 5 computers, same config.
          >
          > They joined the cluster together without any problem.
          >
          > But, when calling mulitple methods on a Stateless session bean,
          > the time between calls were really slow: 4 to 10 seconds.
          >
          > I tested with 2 Wls only in a cluster. It does work, really fast.
          >
          > 1. What did I miss?
          >
          > 2. How to configure wls so that it does not renew contacts to
          > other wls too often?
          >
          > Thierry