PI22766: FS 90 CAUSES FILE DELETION

COBOL for AIX Fix Pack 12 (October 2014 PTF) for 4.1.1
COBOL for AIX Fix Pack 13 (October 2015 PTF) for 4.1.1
COBOL for AIX Fix Pack 14 (August 2016 PTF) for 4.1.1
COBOL for AIX Fix Pack 15 (August 2017 PTF) for 4.1.1
COBOL for AIX Fix Pack 16 (July 2018 PTF) for 4.1.1

APAR status

• Closed as program error.

Error description

• Variable block file with minimum length of 813 bytes and maximum
  length 1968 gets delete defined with different attributes,
  when the file is open in CICS and a batch program tries to open
  it in OUTPUT mode.
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Clients with SFS files being accessed concurrently via COBOL
  programs and TxSeries transactions may be affected by this
  issue.
  
  PROBLEM DESCRIPTION:
  Opening a SFS file for OUTPUT does a delete/create instead of
  empty.  This caused increased CPU and elapsed time there by
  enlarging a window for errors in concurrent execution.
  The centre of the issue is concurrent execution (COBOL batch and
  CICS ONLINE), and timing window wherein a COBOL OPEN OUTPUT does
  a DELETE and then a CREATE.
  A CICS transaction can catch us between the DELETE and CREATE
  and fail.
  

Problem conclusion

• SFS files opened for OUTPUT will now empty the file instead of
  doing a delete/create.
  

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:

Fix information

• Fixed component name

  COBOL AIX RUNTI

• Fixed component ID

  5724Z8702

Applicable component levels