PI69372: HPIC UNDER RGE PASSES WRONG RECORD PRIMARY INDEX RECORDS TO HPPCWHEN SPECIFICATION OF DBBUF= IS MORE THAN 2000

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• HPIC under RGE passes wrong record primary index records to HPPC
  when specification of DBBUF= is more than 2000
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: IBM IMS High Performance Image Copy for      *
  *                 z/OS Version 4 Release 2 (FMID=H1J0420)      *
  *                 users who run IMS Database Reorganization    *
  *                 Expert Version 4 Release 1.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Pointer errors are detected  during     *
  *                      HASH checking and incorrect image copy  *
  *                      data set is created in the              *
  *                      reorganization JOB for HIDAM database   *
  *                      by using IMS Database Reorganization    *
  *                      Expert, because IMS HP Image Copy       *
  *                      uses wrong database record for HIDAM    *
  *                      primary index database.                 *
  *                                                              *
  *                      The trouble occurs under following      *
  *                      conditions:                             *
  *                       - Target databases of Reorganization   *
  *                         is HIDAM database.                   *
  *                       - The type of the Image Copy           *
  *                         processing is Type-A (ICTYPE=A).     *
  *                       - DBBUF= keyword is provided in ICEIN  *
  *                         DD card and specified number is      *
  *                         2000 or more.                        *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  Pointer errors are detected  during HASH checking and incorrect
  image copy data set is created in the reorganization JOB for
  HIDAM database by using IMS Database Reorganization Expert,
  because IMS HP Image Copy uses wrong database record for HIDAM
  primary index database.
  
  The trouble occurs under following conditions:
   - Target databases of Reorganization is HIDAM database.
   - The type of the Image Copy processing is Type-A (ICTYPE=A).
   - DBBUF= keyword is provided in ICEIN DD card and specified
     number is 2000 or more.
  
  By Type-A process, IMS HP Image Copy task of reorganization
  interface receives each reorganized record from the
  reorganization task, and copies it in the buffer on storage,
  then IMS HP Image Copy notices the reorganization task that
  the record copy is done. Number of buffer is equal to number
  of tasks that create image copy data set and run HASH check.
  And number of entries in each buffer are determined by
  specified number of DBBUF= keyword. Each tasks of creating
  image copy data set pulls record from the buffer and passes
  it to HASH check process. When the buffer is full, the
  interface task waits until the buffer can be reusable,
  
  The cause of trouble is interface module keeps buffer entries
  in  the half word field and checking number as full word. When
  the entries number is 2000 or over, interface module mishandles
  the number of entries. As the result, the interface module
  does not recognize when the buffer is full, and overwrites the
  record that has not been processed. When HASH Check verifies
  the record, and finds incorrect record.
  

Problem conclusion

• IMS HP Image Copy uses full word area for handling number of
  buffer entries.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  UI40972

Modules/Macros

• FABJDREQ
  

Fix information

• Fixed component name

  IMS HP IMAGE CO

• Fixed component ID

  5655K9600

Applicable component levels

• R420 PSY UI40972

     UP16/09/24 P F609 ¢

Fix is available

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