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  1. JBoss Enterprise Application Platform
  2. JBEAP-17803

memory leak, org.jboss.jca.core.connectionmanager.pool.idle.IdleRemover$IdleRemoverRunner is keeping deployment in memory after undeployment

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Details

    • Bug
    • Resolution: Done
    • Blocker
    • 7.3.0.GA
    • None
    • JCA
    • None

    Description

      As part of looking at WFLY-12671, I found that org.jboss.jca.core.connectionmanager.pool.idle.IdleRemover$IdleRemoverRunner is leaking the application classloader (after undeployment) via org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory originalTCCL being kept after undeployment.

      See attached jcaleakmarlow.txt, which shows the leak.

      I tried waiting a few minutes after undeployment and the leak was still there. I also tried an even simpler app (2lc.jar) and still there is a leak. I also attached the heapdump (java_pid12802.0001.zip)

      To recreate:

      • Deploy simple (no app code will be executed) 2lc.jar app.
      • Undeploy by doing "rm 2lc.jar.deployed" in eap/standalone/deployments.
      • Look for org.jboss.as.jpa.config.PersistenceUnitMetadataImpl memory leak with MAT or other memory leak tool.

      Attachments

        1. 2lc.jar
          2 kB
        2. java_pid12802.0001.zip
          41.06 MB
        3. jcaleakmarlow.txt
          3 kB

        Issue Links

          is blocked by

          Component Upgrade - A task tracking an update to a bundled component or revision of component upstream of the project. JBEAP-17911 Upgrade IronJacamar to 1.4.19.Final

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Closed
          is incorporated by

          Component Upgrade - A task tracking an update to a bundled component or revision of component upstream of the project. JBEAP-17911 Upgrade IronJacamar to 1.4.19.Final

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Closed
          is related to

          Bug - A problem that impairs or prevents the functions of the product. WFLY-12676 memory leak, org.jboss.jca.core.connectionmanager.pool.idle.IdleRemover$IdleRemoverRunner is keeping deployment in memory after undeployment

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Closed

          Activity

            People

              smaestri@redhat.com Stefano Maestri
              smarlow1@redhat.com Scott Marlow
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              Dates

                Created:
                Updated:
                Resolved: