PI33412: STORAGE LEAK OCCURS WHEN OSGI APPLICATIONS ARE STOPPED/STARTED REPEATEDLY

8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• hen a bundle is started when an OSGI application starts, an
  authorization table is created.  But, when the bundle is
  stopped the authorization table is not deleted.  So, when the
  application and bundle is restated, another authorization table
  is created.  If the application is stopped/started many time, a
  storage leak can be seen and may lead to an OutOfMemoryError
  (OOM).
  
  The leak is occurs in a java.util.Hashtable$Entry[] from class
  om.ibm.ws.security.core.WSAccessManager.  It contains
  
  com.ibm.ejs.models.base.bindings.applicationbnd.impl.
   AuthorizationTableImpl
  
  - org.eclipse.emf.ecore.util.EObjectContainmentEList
  
  --com.ibm.ejs.models.base.bindings.applicationbnd.
   RoleAssignment
  
  ---com.ibm.ejs.models.base.bindings.applicationbnd.impl.
   RoleAssignmentImpl
  
  ---com.ibm.ejs.models.base.bindings.applicationbnd.impl.
   RoleAssignmentImpl
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V8.5                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: Starting and stopping an OSGI           *
  *                      application during the lifetime of      *
  *                      the application server causes a         *
  *                      storage leak, and may lead to an Out    *
  *                      Of Memory(OOM)error condition.          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An authorization table created during the starting of an
  application is not deleted when the application is stopped.
  If the application is restarted, another authorization table is
  created, causing a memory leak associated with the original
  authorization table.
  

Problem conclusion

• The authorization table that is created when an application
  is started is subsequently deleted when that application is
  stopped.
  
  APAR PI33412 is currently targeted for inclusion in Fix Pack
  8.5.5.6 of WebSphere Application Server V8.5.
  
  Please refer to the Recommended Updates page for delivery
  information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  
  In addition, please refer to URL:
  http://www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack PTF information.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R850 PSY

     UP