PI67560: DECZLDX0 MAY EXCEED MAXIMUM OUTPUT LENGTH BY 1 CAUSING ABEND04E RC00C90103

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If the compression dictionary does not work well for the input
  row, it is possible for the size of the row to increase in size
  when the data is compressed. In some cases DECZLDX0 may return
  a compressed row that is 1 byte larger than the maximum row
  size.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Users.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: DECZLDX0 may exceed the maximum output  *
  *                      length by 1 causing ABEND04E RC00C90103 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  
  
  Guidelines for installing DEC V1.2 maintenance
  In order to avoid unnecessary service disruptions due to
  maintenance activities, please follow these recommendations when
  deciding how and when to install maintenance for the Encryption
  Tool:
  1. Always keep the SMP/E environment up to date. This will
  ensure that any newly-built exits will have the latest code.
  2. Do not relink existing exits to include new SMP/E maintenance
  unless one of the following is true:
  a. You are experiencing a problem/symptom described by a
  specific APAR
  b. You already have a planned outage (for instance, a planned
  key rotation procedure)
  c. The APAR is marked as HIPER
  d. IBM support has advised you to do so
  3. When maintenance to an exit is performed, ensure that copies
  of the existing exits are retained prior to replacing the exits
  with newer versions. The copies could be useful in a scenario
  where you need to fall back or if there is a need to reference
  information from the older exit.
  4. It is not necessary to perform a migration action (i.e. an
  UNLOAD with the old exit and RELOAD with the new exit) unless
  there are instructions associated with the APAR stating that it
  is necessary to do so. These instructions may be included in any
  of the following:
  a. APAR description
  b. APAR closing text
  c. ++HOLD ACTION
  5. When a migration action is required, the DB2|IMS subsystem
  should be cycled to ensure that the new exit is loaded and used.
  End of Guidelines
  
  1) The following DEC Modules are updated, by PI67560. The DEC
  DB2 Link Jobs (DECDB2CL and DECDB2DV) will be required to be
  executed, after SMP/E Apply, for these:
  DECENBI0 - CPACF protected key plus unique Initial Chaining
  Vector (ICV) generation
  DECZLDX0 - Compression edit procedure
  2) After successful linking of the DEC V1.2 DECENBI0 and
  DECZLDX0 Modules, for this APAR, Customer should do either of
  the following actions:
  a) Determine if the .SDSNEXIT library, for the DB2 Subsystem
  where DEC V1.2 is used, is in the System Linklist concatenation.
  If so, issue the LLA Refresh command on that System LPAR. This
  will allow Customer to use the updated code, without need to
  Cycle the DB2 Subsystem.
  b) If the .SDSNEXIT library, for the DB2 Subsystem where DEC
  V1.2 is used, is not in the System Linklist concatenation,
  Customer will need to Cycle the DB2 Subsystem, in order to use
  the updated code.
  

Problem conclusion

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:

Modules/Macros

• DECENBI0 DECZLDX0
  

Fix information

• Fixed component name

  DATA ENCRYPTION

• Fixed component ID

  5655P0300

Applicable component levels

• R120 PSY UI42472

     UP16/11/16 P F611

Fix is available

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