1 Reply Latest reply on Nov 30, 2009 11:35 AM by Peter Johnson

    Jboss 4.2.0 suddenly takes more time and memory to start up

    Alassane Ba Newbie

      Hello,
      Since a week ago, our production jboss 4.2.0 server takes longer to start up. Usually it starts in 20 s but now it takes 1m40 s.
      The worst is that after a start up, when i do ps to see how much memory the java process consume; i used to see something like 3.2% of total memory but now it climbed to 7.8% which is really weird.
      Any Ideas ??

        • 1. Re: Jboss 4.2.0 suddenly takes more time and memory to start
          Peter Johnson Master

          Here are some things you can try.

          a) Compare the console log (for starup) of your production server with a clean test version that has your app deployed. Compare the timestamps in the log.

          b) What is in the server/xxx/data directory? Perhaps there are a lot of serialized sessions.

          c) Use a tool such a jconsole or visualvm to monitor the heap usage, or set some of the JVM command line options to gather garbage collection statistics.

          d) Use jmap or visualvm to get a heap dump and use visualvm to analyze it. If you do this for both the production and clean test versions you should be able to notice differences in object counts.