JR49697: NONTHREADED FECNED WRAPPER MAY TRAP THE INSTANCE WHEN IT GOES INTO UNSTABLE STATE

DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• Federation Server running nonthreaded fenced wrapper may trap in
  following stacks when the db2fmp process goes into unstable
  state:
  
         ossDumpStackTraceEx
         OSSTrapFile::dumpEx
         sqlo_trce
         sqloEDUCodeTrapHandler
         __restore_rt
         sqleFedFMPManager::getFmpFromProcPool
         sqleFedFMPManager::getFmpFromPool
         sqlerFedInvokeFencedRoutine
         sqlriFedInvokeInvoker
         sqlqg_Call_FMP_Thread
         sqlqgFedStart
         sqlqgOpen
         sqlri_djx_rta
         sqlriExecThread
         sqlriSectInvoke
         sqlrr_process_fetch_request
         sqlrr_open
         sqljs_ddm_opnqry
         sqljsParseRdbAccessed
         sqljsParse
         sqljsSqlam
         sqljsDriveRequests
         sqljsDrdaAsInnerDriver
         sqljsDrdaAsDriver
         sqeAgent::RunEDU
         sqzEDUObj::EDUDriver
         sqlzRunEDU
         sqloEDUEntry
         start_thread
         __clone
  
         ossDumpStackTraceEx
         OSSTrapFile::dumpEx
         sqlo_trce
         sqloEDUCodeTrapHandler
         __restore_rt
         sqleCleanupFedDaemonAnchor
         sqleFedFMPManager
         sqleFedFMPManager::~sqleFedFMPManager
         sqeApplication::TermApplication
         sqeAppServices::DestroyAppl
         sqleCoordAgentApplTerm
         sqljsCleanup
         sqljsDrdaAsInnerDriver
         sqljsDrdaAsDriver
         sqeAgent::RunEDU
         sqzEDUObj::EDUDriver
         sqlzRunEDU
         sqloEDUEntry
         start_thread
         __clone
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * The users are running non-threaded fenced mode wrapper.      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to DB2 for LUW V9.7FP10 or higher level.             *
  ****************************************************************
  

Problem conclusion

• The problem is firstly fixed on V9.7FP10.
  

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:

  JR49699 IT00697

Fix information

• Fixed component name

  FEDERATION SERV

• Fixed component ID

  5724N9700

Applicable component levels

• R970 PSY

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