PH07621: TASKS REMAIN SUSPENDED INDEFINITELY FOR RESOURCE TYPE PROGRAM

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A CICS region was suffering a situation where tasks were
  sticking indefinitely for Resource Typ (PROGRAM) and Resource
  Name(PROGRAM-A).
  
  The dump shows that the task tried to do an EXEC CICS LOAD
  (PROGRAM-A) that never succeeded.
  
  It appears that several concurrent transactions were all
  contending for PROGRAM-A and that the contention was managed by
  the PGWE Program Lock.
  
  It seems that a flood of Autoinstall activity left a program
  lock (PGWE) active, and a transaction suspended, waiting for the
  lock. The investigations showed that, in a very specific set of
  circumstances, it is possible for the PGWE Program Lock to be
  left locked.
  

Local fix

• Not available.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: CICS Cloud Transactions hang.           *
  ****************************************************************
  A CICS Cloud program issues PL/I FETCH or COBOL Dynamic CALL
  which causes a LOAD of a program which resides in a public
  CICS library.
  PG domain sets a Program Lock to serialise the AutoInstall
  of the program.
  Another CICS Cloud program causes a similar LOAD;
  this causes the transaction to issue a DSSR SUSPEND on
  a resource type of "PROGRAM" and a resource name of the
  loaded program.
  An error in PG domain serialisation code leaves the Program
  Lock active for the program, and the transaction remains
  suspended indefinitely.
  CEMT shows affected transactions to be suspended.
  Affected transactions can not be purged.
  Additional Keywords: PG 0619
  Private_program_promoted_to_public_PPT
  Versioned Version Promoted Retired PGWE
  

Problem conclusion

• DFHPGLD has been changed to unlock the locked
  program and resume the transaction correctly.
  

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:

  UI61149 UI61150

Modules/Macros

• DFHPGEX  DFHPGIS  DFHPGLD  DFHPGLE  DFHPGLK  DFHPGLU  DFHPGPG
  DFHPGXE
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R100 PSY UI61149

     UP19/02/07 P F902

• R200 PSY UI61150

     UP19/02/09 P F902

Fix is available

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