PK05498: /RECOVER TERMINATE ALLENTRIES COMMAND DOES NOT STOP DEDB RECOVERY WHEN STARTED BY /RECOVER START COMMAND.

APAR status

• Closed as program error.

Error description

• DEDB recovery had been done by DRF with /RECOVER START command.
  We issued /RECOVER TERMINATE ALLENTRIES to suspend the
  recovery, but it didn't work.
  Also, /RECOVER REMOVE, /RECOVER START didn't work in this
  situation. It seems /RECOVER STOP didn't work successfully.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IMS DRF V2R1 in online mode are *
  *                 affected.                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: DRF hang after CMDRECOVER TERMINATE     *
  *                      command issued.                         *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  Subordinate address space terminates at the same time that DRF
  receives clean up notification(RWRTCLN) from IMS during online
  recovery. The storage for the recovery and the storage for the
  subordinate address spaces get cleaned up too early. When the
  subordinate address space termination occurs, but the control
  blocks have been released, the DRF termination processing waits
  forever.
  

Problem conclusion

• AIDS: RIDS/UTIL RIDS/DBS DBS/UTIL
    DEP: NONE
    GEN:
  
  *** END IMS KEYWORDS ***
  The design of termination is modified to sychronize clean up
  process with subordinate address spaces termination and end
  recovery.
  
  Macros FRXAWFN, FRXCON and FRXRVGB have been modified to
  add new values related to clean up and termination.
  
  Modules of FRXPDIR0, FRXMSTR0, FRXLSRT0, FRXPDSS0, FRXMSTR1,
  FRXLACR0, FRXLACR1 and FRXRBUF0 have been modified
  to sychronize the termination and clean up requests from IMS
  and DRF.
  
  A secondary hang was discovered during testing of the fix for
  this APAR.  Change accumulation readers can hang during early
  read termination.  Code is added to FRXCAMG0 to fix this
  problem.
  

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:

  UK07332

Modules/Macros

• FRXAWFN  FRXCAMG0 FRXCON   FRXLACR0 FRXLACR1
  FRXLSRT0 FRXMSTR0 FRXMSTR1 FRXPDIR0 FRXPDSS0 FRXRBUF0 FRXRVGB
  

Fix information

• Fixed component name

  IMS DB RECOVERY

• Fixed component ID

  5655I4400

Applicable component levels

• R210 PSY UK07332

     UP05/09/28 P F509