PH21964: HIOP STORAGE INCREASE EACH TIME THE QCF ISPF INTERFACE IS UTILIZED - NON-SHARED QUEUES ENVIRONMENT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• HIOP storage increase in a nonshared queue environment each
  time the QCF ISPF user interface is used.
  QCF has not returned a buffer obtained from HIOP storage for the
  following operations under the QCF ISPF user interface:
  (1) Choose a Row action or a Table action from the Display
      Waited Tasks panel (IQCP94A) on the QCF Main Menu option 4-
      Wait
  (2) Choose 1-Edit or 2-View from the Queue Space Notification
      Tables panel (IQCP71A) on the QCF Main Menu option 5-Tables
  (3) Choose 1-Edit or 2-View from the Queue Space utilization
      notification parameters panel (IQCP71AS) on the QCF Main
      Menu option 6-Notify
  Each time the user does one of the above operations, a buffer
  of about 160K bytes is left in HIOP storage.
  If it reaches the upper expansion limit of the HIOP storage,
  MSGDFS0637W is displayed and no one can obtain a new buffer from
  HIOP storage and IMS needs to be recycled.           DFS0637W
  
  Additional Symptom: ABEND0C4 in IQCCQAT0 at x'7118', or at x'FC'
  past label CQAT8000.                              ABENDS0C4 S0C4
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IBM IMS Queue Control Facility for z/OS  *
  *                 Version 3 Release 2 (FMID=H0GN320) users     *
  *                 in a nonshared queue environment.            *
  ****************************************************************
  * PROBLEM DESCRIPTION: HIOP storage increase each time the QCF *
  *                      ISPF interface is utilized.             *
  *                      DFS0637W may be displayed.              *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  HIOP storage increase in the nonshared queue environment each
  time the QCF ISPF user interface is used. QCF has not returned a
  buffer obtained from HIOP storage for the following operations
  under the QCF ISPF user interface.
  (1) Choose a Row action or a Table action from the Display
      Waited Tasks panel (IQCP94A) on the QCF Main Menu option
      4-Wait
  (2) Choose 1-Edit or 2-View from the Queue Space Notification
      Tables panel (IQCP71A) on the QCF Main Menu option 5-Tables
  (3) Choose 1-Edit or 2-View from the Queue Space utilization
      notification parameters panel (IQCP71AS) on the QCF Main
      Menu option 6-Notify
  Each time the user does one of the above operations, a buffer
  about 160K bytes is left in HIOP storage. If it reaches the
  upper expansion limit of the HIOP storage, MSGDFS0637W is
  displayed, no one can obtain a new buffer from HIOP storage and
  IMS needs to be recycled.
  

Problem conclusion

• QCF has been changed to return the buffers obtained from HIOP
  storage for the internal Queue Space Notification function.
  

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:

  UI68107

Modules/Macros

• IQCCQATE IQCCQATF IQCQMR1E IQCQMR1F IQCQMR9E IQCQMR9F IQCXCTRL
  IQCXREAD
  

Fix information

• Fixed component name

  IMS QUEUE CNTL

• Fixed component ID

  5697E9900

Applicable component levels

• R320 PSY UI68107

     UP20/02/28 P F002

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.