PM17150: EXPOSURE FOR SUSPENDED EXTENT PROCESSING MAY RESULT IN LOOPING ISM REQUESTS AND CAUSE SYSTEM WAIT STATE TO OCCUR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Code is being added to address exposure for suspended extent
  processing that may result in looping ISM requests and cause
  system to enter wait state.
  Additionally, high CPU usage may occur in other applications.
  The looping involves address in CQMISMPX (at PK81853 level),
  offsets 119E4-11D8C.  With CQMISMPX at 1BE1E000, SYSTRACE shows
   0165 05568F80  SSRB       077C0001 9BE2FD80  00000000
   0165 00000000  EXT   1005 077C2001 9BE2F9DC  00001005
   0165 00000000  EXT   1005 077C3001 9BE2F9E4  00001005
   0165 00000000  EXT   1005 077C2001 9BE2F9DC  00001005
   0165 00000000  EXT   1005 077C2001 9BE2F9DC  00001005
   0165 00000000  EXT   1005 077C3001 9BE2F9E4  00001005
  Additional symptoms can include high CPU usage occurring in
  other applications and possible looping in CQMMALOX @ +1422
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of DB2 Query Monitor.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Code is being added to address exposure *
  *                      for suspended extent processing that    *
  *                      may result in looping ISM requests and  *
  *                      cause system to enter wait state.       *
  *                      Additionally, high CPU usage may occur  *
  *                      in other applications.                  *
  ****************************************************************
  * RECOMMENDATION: APPLY the PTF.                               *
  ****************************************************************
  Code has been changed to correct this condition.
  

Problem conclusion

• APPLY the PTF.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  UK60688

Modules/Macros

•    CQM#CQMA CQM#CQMD CQM#CQML CQM#INIX CQM#LCSX
  CQM#SDIR CQMISMPX CQMISMTS CQMMALOX CQMMAUDX CQMMEACX CQMMEAPX
  CQMMEARX CQMMEASX CQMME8CX CQMME8PX CQMME8RX CQMME8SX CQMME9CX
  CQMME9PX CQMME9RX CQMME9SX CQMMINIX CQMTTEX1 H238230J
  

Fix information

• Fixed component name

  DB2 QUERY MONIT

• Fixed component ID

  5655E6701

Applicable component levels

• R230 PSY UK60688

     UP10/09/29 P F009 Ž

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.