PM05072: FORWARD FIT PK82055 NEAR TERM HISTORY STORAGE CLEANUP TO PREVENT HIGH CPU UTILIZATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• There is an internal table (Thread Elements) held in storage
  that is growing larger than it should and since that table will
  be iterated on a lot during processing it can cause consumption
  of extra CPU cycles.
  
  Forward fit PK83874 to provide additional diagnostic information
  ERROR DESCRIPTION for PK83874:
  HISTORICAL COLLECTOR (NTH) FAILED TO BE STARTED
  KO2O1322E NEAR-TERM HISTORY DATA COLLECTOR - CREATE THREAD
  FAILED. RETURN CODE 00000008 (CHECKRC )
  KO2O1323E NEAR-TERM HISTORY DATA COLLECTOR - CREATE THREAD
  FAILED. REASON CODE 00F30049 (CHECKRC )
  LOCAL FIX:
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
  *                 users of component:                          *
  *                 -   The component that transfers DB2         *
  *                     monitoring data collected by the         *
  *                     OMEGAMON collector to the TEMA           *
  ****************************************************************
  * PROBLEM DESCRIPTION: Historical collector storage buildup    *
  *                      and processing overhead due to this.    *
  ****************************************************************
  * RECOMMENDATION: Apply this PTF                               *
  *                                                              *
  ****************************************************************
  PROBLEM SUMMARY:
  A large amount of storage is allocated to maintaining
  thread-related statistics and accounting data on a large system.
  
  PROBLEM CONCLUSION:
  Add internal code to monitor and clean these data structures
  periodically.  The code will dynamically adjust the cleanup
  cycle depending on the amount of storage currently in use.
  

Problem conclusion

• Add internal code to monitor and clean these data structures
  periodically.  The code will dynamically adjust the cleanup
  cycle depending on the amount of storage currently in use.
  
  KEYWORDS : HISTORICAL COLLECTOR STORAGE PROCESSING
  

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:

  UK54952

Modules/Macros

• KO2DBCIB KO2DTHDA KO2DTHDS KO2DTHD2 KO2HCAFB
  KO2HDTIB
  

Fix information

• Fixed component name

  OM XE DB2PE/PM

• Fixed component ID

  5655OPE00

Applicable component levels

• R420 PSY UK54952

     UP10/03/10 P F003

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.