PI83311: CONVERSION OF APPLICATION DATA TO JSON RESULTS IN TRUNCATED OUTPUT DUE TO BUFFER OVERFLOW

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer has a large amount of data, larger than 32,767
  bytes), which needs to be converted to JSON.  DFHPIJG is called
  for function CONVERT_DATA_TO_JSON  with an output buffer having
  a max length of x'8000'  (32,768 decimal).    DFHPIJG exits
  with RESPONSE(EXCEPTION) REASON(BUFFER_OVERFLOW).  The original
  output buffer is freemained and new buffer of the required size
  is getmained.  However, the original max length is passed in on
  a second call to DFHPIJG which results in the same truncation
  occurring again.  DFHPIJG is not called again so the truncated
  data is returned to the caller.
  
  Additional Symptom(s) Search Keyword(s): KIXREVRJL
  Convert data to JSON
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHJSON returns truncated data when     *
  *                      using the native (non-Java) parser.     *
  ****************************************************************
  DFHJSON is passed a large copybook to convert to JSON.  If the
  generated JSON is greater than 32KB it will be truncated when it
  is returned to the application.  The application receives no
  indication that an error has occurred.
  

Problem conclusion

• DFHPIJG has been updated to stop the data truncation and
  DFHPITRI has been updated to correctly format a
  BUFFER_OVERFLOW exception trace entry.
  

Temporary fix

Comments

APAR Information

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

  PI79028

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

  UI49191

Modules/Macros

• DFHPIJS  DFHPITRI
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R100 PSY UI49191

     UP17/08/02 P F708

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.