1 Reply Latest reply on Dec 14, 2010 4:04 PM by ron_sigal

    sslservlet transport - too many client / server round trips for single invocation

    jburugupalli
    jburugupalli Nov 5, 2010 9:31 AM

      HI All,

       

      I am using remoting 2.5.1 with JBoss 5.1.0

       

      I have setup sslservlet transport for my EJB2 beans. The invocation from the client side works fine.

      Invocation URL https://serverName:443/unified-invoker/SSLJNDIFactory/?dataType=invocation&return-exception=true

       

      To measure performance with a server behind firewall, I made a call on the server which returns a big List with objects back to the client.

       

      Too many server client pings with small data (maximum of 1434 bytes).

       

      I monitored this single call with wireShark and the data is as follows

       

       

      NrTime(milli seconds)
      1 - 60 (just for logging in)4.54
      After this method call to fetch huge data
      61 (response from the huge method)123.47 (response after a delay of 120 seconds, I checked the server and the mthod took 93 seconds)
      3881 (somany exchanges from server)215.574

       

      So the initial calls 1-60 are just remoting calls for the authentication.

      After that the actual method is called. After a huge delay the first response from the server us obtained. After the first response there are 3800 more exchanges between the server and the client to complete the data transfer.

       

      I tried to use the -Dremoting.payload.size=4098 as a VM param to increase the packet size and decrease the client/server traffic, but did not work.

       

      Is there a way to over come this problem? Appreciate any feedback.

       

      thanks.