PM48350: IQC6101I MESSAGE RECEIVED, WARNING THAT THE SHORT MESSAGE QUEUE IS ALMOST FULL WHEN IT IS NOT - PART 2

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• IQC6101I QUEUE SPACE USAGE WARNING. QUEUE DATA SET SMSQ USAGE
  COUNT IS 674 WHICH IS 95% AS SPECIFIED IN OVERFLOW TABLE.
  
  MSGIQC6101I is received incorrectly due to the customer system
  being XRF capable and the way QCF handles the two queue types
  (Normal and Local) after a restart.
  
  Originally LOCAL queues are used (before a restart), but after
  a restart the NORMAL queues are used which causes QCF to believe
  it's init was done thus incorrectly comparing the message
  belonging to the NORMAL queue with that of the LOCAL queue.
  
  This is a continuation of APAR PM43734 PTF UK71430.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users with XRF capable systems and       *
  *                 QCF3.1 overflow protection.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: IQC6101I message received,warning that  *
  *                      the short message queue is almost       *
  *                      full, when it is not. The message is    *
  *                      for takeover IMS queues, but this is    *
  *                      not obvious, because the IMSid is       *
  *                      the same.                               *
  *                       The takeover IMS queues are small      *
  *                      and the reported condition is true.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  With XRF capable IMS and very small size of the short and long
  message queues for the takeover IMS - the percentage of queues
  grows for the takeover IMS and the criteria for issuing the
  warning messages is  met.
   If the  queues are very small-the condition is really what is
  reported in the message - even the 95% can be reached.
   Warnings are for the takeover IMS, but this is not obvious
  from the message.
  The size of short and long message queues for the takeover IMS
  shold be big enough - to stay under the lowest AREA in the
  overflow protection.
   Also - the overflow protection internal tables are not re-ini-
  tialized if the maximum number of blocks, passed on IMS call
  to check the queue status, is less than the size, already stored
  in the tables.
  

Problem conclusion

• Install the APAR to avoid initialization with smaller queue
  values.
   Short and long messages queues for the takeover IMS should be
  large enough to stay under the lowest protection AREA all the
  time.
  

Temporary fix

Comments

APAR Information

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

  PM43734

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

  UK76691

Modules/Macros

• IQCQMRIA IQCQMRI9 IQCQMR1B IQCQMR1C IQCQMR18
  

Fix information

• Fixed component name

  IMS QUEUE CNTL

• Fixed component ID

  5697E9900

Applicable component levels

• R310 PSY UK76691

     UP12/03/01 P F202

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.