3 Replies Latest reply on Dec 3, 2009 9:46 AM by Adrian Brock

    Memory Leak in JBoss EJB

    Venu Kemthur Newbie

      Jboss Version: 4.2.3GA
      JBoss WS version: 3.0.5 GA

      We are running a portal application (using JBoss portal) in a production environment; The portal interacts with a service tier comprised of EJB's (there are few web services implemented using stateless EJB's)

      We are observing that the old gen becomes full after few hours. Took a heap dump and analyzed using Eclipse MAT.

      It reports the following as leak suspects:

      Problem Suspect 1

      One instance of "org.jboss.ejb3.stateless.StatelessContainer" loaded by "org.jboss.mx.loading.UnifiedClassLoader3 @ 0x8c437030" occupies 45,654,248 (11.77%) bytes. The memory is accumulated in one instance of "java.util.LinkedList$Entry" loaded by "<system class loader>".


      Problem Suspect 2

      277 instances of "org.jboss.ejb3.stateless.StatelessBeanContext", loaded by "org.jboss.mx.loading.UnifiedClassLoader3 @ 0x8c437030" occupy 186,304,176 (48.05%) bytes. These instances are referenced from one instance of "java.util.HashMap$Entry[]", loaded by "<system class loader>"


      Hint

      The problem suspects 1 and 2 may be related, because the reference chains to them have a common beginning.
      org.jboss.remoting.transport.socket.SocketServerInvoker$ServerSocketRefresh @ 0x8c41b908 ServerSocketRefresh Thread


      Can someone suggest how to proceed ahead with this?

      Thanks
      Venu