PI69291: IEC0036I AND ABEND002 WHEN PROCESSING AN IMS PI EXTRACT DATASET

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• MSGIEC0036I and ABENDS002 when processing an IMS PI Extract.
  Due to a Knowledge Module (KM) formatting issue during Extract
  processing, storage immediately following a buffer used to hold
  field metadata may be overwritten, resulting in various issues
  including ABEND S002-04 IEC036I in subsequent Extract dataset
  processing.  Error message for this one instance appears as:
  IEC036I 002-04,IGC0005E,jobname,stepname,ddname,volume,dsname
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IMS Problem Investigator V2.4       *
  ****************************************************************
  * PROBLEM DESCRIPTION:  Abstract/Summary: Abend IEC0036I when  *
  *                       processing an IMS PI Extract dataset.  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
   1. Due to a Knowledge Module (KM) formatting issue during
      Extract processing, storage immediately following a buffer
      used to hold field metadata may be overwritten, resulting
      in various issues including Abend S002-04 IEC036I in
      subsequent Extract dataset processing.
  

Problem conclusion

• 1. IMS x'27' Database Extension record KM did not cater for a
  DBXVSI segment length value of zero, which caused the
  segment data to be repeatedly output until an internal
  MAXFLDS value was encountered. This results in error
  ALZ0051E being issued in Online Browse, but not
  in Batch processing. The KM is corrected to format a
  single DBXVSI segment where the segment length  value
  is zero.
  2. An internal buffer is created to
  store field metadata, the number of field entries
  allowed is defined by an internal value MAXFLDS. When
  MAXFLDS is reached the prefix area of the next field
  entry is being cleared, resulting in storage beyond the
  field buffer being overwritten, which can lead to
  unpredictable results. This scenario is now corrected.
  

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:

  UI41323

Modules/Macros

• ALZBRAPI ALZLCAT  ALZLINFO ALZ27A   ALZ27B   ALZ27C   ALZ27D
  ALZ27E
  

Fix information

• Fixed component name

  IMS PROBLEM INV

• Fixed component ID

  5655K5000

Applicable component levels

• R240 PSY UI41323

     UP16/10/04 P F610

Fix is available

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