PK73652: ABEND0C4 IPI4PR91 WHEN A LARGE NUMBER (> 256) OF FP DATABASE SYNC FAILURES OCCUR FOR A TRANSACTION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABENDS0C4 IPI4PR91 near x'A86' when a large number (> 256) of
  Fast Path database sync failures (x'5938' log records) occur
  for a transaction.
  IMS PA uses internal 'records' for transferring transit
  information to report processors. These are limited to 32K.
  When more sync failures occur than can fit in a record an
  attempt to store past the end of the record is made, causing
  the abend.
  Additional Symptom: Any odd or intermittent ABEND0C4 or ABEND0C1
  ( ABEND0Cx ) and a high volume of syncpoint ROLB failures should
  install this maintenance as this could affect various storage
  areas.  One abend0c4 occurred in IGG019DJ.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS Performance Analyzer V4.1 users.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in IPI4PR91 when a large       *
  *                      number (> 256) of Fast Path database    *
  *                      sync failures (x'5938' log records)     *
  *                      occur for a transaction.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  IMS PA uses internal 'records' for transferring transit
  information to report processors. These are limited to 32K.
  When more sync failures occur than can fit in a record
  an attempt to store past the end of the record is made,
  causing an Abend 0C4.
  

Problem conclusion

• Modify IMS PA to perform bounds checking and flush records to
  report processors after 256 sync failures.
  

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:

  UK40920

Modules/Macros

• IPIGDISP IPI4PRA1 IPI4PR91
  

Fix information

• Fixed component name

  IMS PERF ANALYZ

• Fixed component ID

  5655E1500

Applicable component levels

• R410 PSY UK40920

     UP08/10/27 P F810

Fix is available

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