PK68841: FILTER EXCESSIVE DDF/RRSAF 147/148 ROLLUP RECORDS COMING TO DB2 IFI READS INTERNAL BUFFER

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• PE client does not show all the active threads and issues the
  message :
  ***
  The area for the output data is too small. The output data
  is truncated.
  ***
  
  The reason is that an internal buffer of PE Server used for
  receiving DB2 data per IFI READS request gets overflow with
  enormous DDF/RRSAF rollup records (IFCIDs 147/148)
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
  *                 users of component:                          *
  *                 -   PE Server subtask                        *
  *                 -   ISPF Monitoring dialogs                  *
  *                 -   Performance Expert Client                *
  ****************************************************************
  * PROBLEM DESCRIPTION: Only limited number threads or even no  *
  *                      thread are shown in the "Thread         *
  *                      Summary" or "Thread Details" window of  *
  *                      Performance Expert client together with *
  *                      the indicator "DGOK1400 The area for    *
  *                      the output data is too small. The       *
  *                      output data is truncated."              *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply this PTF                               *
  ****************************************************************
  PROBLEM SUMMARY:
  Enormous number of DDF/RRSAF rollup records coming inside
  IFCIDs 147/148 may overflow the DB2 IFI READS internal
  buffer being used by OMEGAMON collector to hold current
  snapshots coming from the DB2 subsystems. This may prevent
  gathering of whole snapshot data in the 1MB/4MB size limited
  buffer.
  
  PROBLEM CONCLUSION:
  The solution given allows to eliminate DDF/RRSAF rollup
  records coming within IFCIDs 147/148 with DB2 snapshots
  and littering the DB2 IFI READS Return Area by useless
  data. The filtering process takes place when OMEGAMON
  collector is running and users of Performance Expert
  Client or ISPF Monitoring dialogs are performing one of
  the following functions:
  - Thread Summary when at least one condition of the
    INCLUDE / EXCLUDE filter is set;
  - Thread Details
  

Problem conclusion

• The solution given allows to eliminate DDF/RRSAF rollup
  records coming within IFCIDs 147/148 with DB2 snapshots
  and littering the DB2 IFI READS Return Area by useless
  data. The filtering process takes place when OMEGAMON
  collector is running and users of Performance Expert
  Client or ISPF Monitoring dialogs are performing one of
  the following functions:
  - Thread Summary when at least one condition of the
    INCLUDE / EXCLUDE filter is set;
  - Thread Details
  
  KEYWORDS : DGOK1400 RETURN AREA IS TOO SMALL
  

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:

  UK42034

Modules/Macros

• DGOVDB2F DGOVMSTR
  

Fix information

• Fixed component name

  OM XE DB2PE/PM

• Fixed component ID

  5655OPE00

Applicable component levels

• R410 PSY UK42034

     UP08/12/02 P F812

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.