7 Replies Latest reply on Feb 1, 2005 10:29 AM by lviz

    JBoss causes performance-problems

    knutschik

      Hi all!
      I have a curios probleme with an instance of a Jboss-server in production. In the server there is no application deployed but the CPU and memory use is highly increasing. After a few days I must restart the server and the cycle is beginning again.
      What happens on the server?

        • 1. Re: JBoss causes performance-problems
          lviz

          hi

          huh?
          (hardware ?)
          os?
          javaversion?
          jbossversion?

          cheers
          L

          • 2. Re: JBoss causes performance-problems
            knutschik

            sorry...

            hardware: PrimePower Server
            OS: Sun Solaris 9
            java-version: 1.4.2
            jboss: 3.2.3

            • 3. Re: JBoss causes performance-problems
              lviz

              hi again

              afaik there where some memory leaks reported in 3.2.3
              can't remember exactly (i thought they had todo with redeployment..)
              anyway..
              have you ever tried to upgrade the jboss-version ?
              just to get it clear if it is jboss and not the solaris java version.
              btw:
              which java 1.4.2_??

              cheers
              L

              • 4. Re: JBoss causes performance-problems
                knutschik

                java-version: 1.4.2_03-b02
                I cannot change the JBoss-Version, because we use it in production area.
                Where can I find something about performance leaks and how to solve the problems?
                Solaris cannot be the reason, because there are no problems with the other servers.

                • 5. Re: JBoss causes performance-problems
                  lviz

                  hello

                  tuning java for performance..

                  http://java.sun.com/docs/performance/


                  i did not mean solaris is the reason ;)
                  (the java version for solaris could be a reason)

                  did the performance/memory leaks appear from beginning ?

                  i can remember something about damaged jars, ears,.. and problems with
                  scanner thread.

                  is this the only instance of jboss on your machine?

                  maybe you would like to install a second(newer) jboss instance on you machine for testing.

                  i know how hard it can be to track down such things..
                  (we use jboss in a cluster with load balancing.. blabla...)

                  cheers
                  L


                  • 6. Re: JBoss causes performance-problems
                    knutschik

                    No, we have serveral server-instances on the server, but the problem appears only in one server.
                    One server configuration is equal to the problem-server and there are no problems.
                    It's very curios because in the server is no application deployed and the cpu and memory usage is highly increasing.

                    • 7. Re: JBoss causes performance-problems
                      lviz

                      phew !;

                      if i had that info about several instance of jboss on one machine running fine
                      and just one going crazy in your first post... ;)

                      did you try to shut down the bad (empty) instance (make a backup, delete the files) and copy the working (equal) instance over the bad one (you have to change the ports!) and start again ?


                      cheers
                      L