PH40204: Deadlock found in SingletonServiceManagerImpl registerService

APAR status

• Closed as program error.

Error description

• Thread 1
  at
  com/ibm/ws/collective/repository/internal/CollectiveElectorF
  actory.getElector(CollectiveElectorFactory.java:265)
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceMan
  agerImpl.create(SingletonServiceManagerImpl.java:304)
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceMan
  agerImpl.getService(SingletonServiceManagerImpl.java:365)
  at
  com/ibm/ws/health/manager/internal/HealthCommunicationManage
  rImpl.getSingletonService(HealthCommunicationManagerImpl.jav
  a:417)
  at
  com/ibm/ws/health/manager/internal/HealthCommunicationManage
  rImpl.registerAsCandidate(HealthCommunicationManagerImpl.jav
  a:433)
  at
  com/ibm/ws/health/manager/internal/HealthCommunicationManage
  rImpl.activate(HealthCommunicationManagerImpl.java:398)
  
  Thread 2
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceMan
  agerImpl.registerService(SingletonServiceManagerImpl.java:42
  9)
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceMan
  agerImpl.setCollectiveElectorFactory(SingletonServiceManager
  Impl.java:179)
  at sun/reflect/NativeMethodAccessorImpl.invoke0(Native
  Method)
  at
  sun/reflect/NativeMethodAccessorImpl.invoke(NativeMethodAcce
  ssorImpl.java:62(Compiled Code))
  at
  sun/reflect/DelegatingMethodAccessorImpl.invoke(DelegatingMe
  thodAccessorImpl.java:43(Compiled Code))
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty Collective                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Deadlock found in                       *
  *                      SingletonServiceManagerImpl             *
  *                      registerService                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Thread 1
  at
  com/ibm/ws/collective/repository/internal/CollectiveElectorFacto
  ry.getElector(CollectiveElectorFactory.java:265)
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceManager
  Impl.create(SingletonServiceManagerImpl.java:304)
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceManager
  Impl.getService(SingletonServiceManagerImpl.java:365)
  at
  com/ibm/ws/health/manager/internal/HealthCommunicationManagerImp
  l.getSingletonService(HealthCommunicationManagerImpl.java:417)
  at
  com/ibm/ws/health/manager/internal/HealthCommunicationManagerImp
  l.registerAsCandidate(HealthCommunicationManagerImpl.java:433)
  at
  com/ibm/ws/health/manager/internal/HealthCommunicationManagerImp
  l.activate(HealthCommunicationManagerImpl.java:398)
  
  Thread 2
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceManager
  Impl.registerService(SingletonServiceManagerImpl.java:429)
  at
  com/ibm/ws/collective/singleton/internal/SingletonServiceManager
  Impl.setCollectiveElectorFactory(SingletonServiceManagerImpl.jav
  a:179)
  at sun/reflect/NativeMethodAccessorImpl.invoke0(Native Method)
  at
  sun/reflect/NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.java:62(Compiled Code))
  at
  sun/reflect/DelegatingMethodAccessorImpl.invoke(DelegatingMethod
  AccessorImpl.java:43(Compiled Code))
  

Problem conclusion

• Code is corrected to avoid deadlock.
  The fix for this APAR is currently targeted for inclusion in fix
  pack 21.0.0.11.  Please refer to the Recommended Updates page
  for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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

  LIBERTY PROFILE

• Fixed component ID

  5724J0814

Applicable component levels