PK59273: PESERVER SHOULD ISSUE THE COMMAND START TRACE (ACCTG) CLASS(1) WHEN CCP=YES IS SPECIFIED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When customer has selected CPU Parallelism with 'Y' during
  installation, i.e. the COLLECTCPUPARALLEL=Y parameter (CCP=Y)
  was set,  the PE Server code issues a START TRACE (ACCTG)
  CLASS(1,2,3,7,8) independent of customers desire and collects
  class 2, 3, 7, or 8 times in addition.  This can cause DB2
  performance degradation.
  The PE server PESERVER code will be changed to issue a START
  TRACE (ACCTG) CLASS(1) only. However if class 2, 3, 7,
  or 8 was started by another trace (ACCTG or MONITOR) the
  additional data will be populated to CCP as well. Therefore the
  user can turn on the other classes to get the package detail,
  for example, if desired.
  **NOTE**
  Because the Accounting and Monitor trace classes are equivalent
  to each other and they are starting additional DB2 internal
  processing which will provide then the details to all started
  trace destinations, it is independent where the customer starts
  the specific trace classes.  The client user may decide to
  define the granularity of accounting data class 2, 3, 7, or 8
  either via starting the Accounting trace for SMF, or for
  NTH, or  via the (manually) entered START TRACE(MON) command.
  That means every other Accounting or MONITOR trace, even
  if started with Class(1), will receive the same level of
  granularity.
  

Local fix

• No Work Around.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
  *                 users of component:                          *
  *                 -   PE Server                                *
  ****************************************************************
  * PROBLEM DESCRIPTION: PE Server code issues a START TRACE     *
  *                      (ACCTG)CLASS(1,2,3,7,8) DB2 command     *
  *                      that can cause overheads.               *
  *                                                              *
  *                      For V410:                               *
  *                      The service level of the                *
  *                      OMEGAMON server subtask PESERVER        *
  *                      FPEV0000I  DATA SERVER INITIALIZATION   *
  *                      FPEV0114I  PTF BUILD IS 08.051          *
  *                                                              *
  *                      For V310:                               *
  *                      The service level of the                *
  *                      OMEGAMON server subtask PESERVER        *
  *                      FPEV0000I  DATA SERVER INITIALIZATION   *
  *                      FPEV0114I  PTF BUILD IS 08.056          *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply this PTF                               *
  ****************************************************************
  PROBLEM SUMMARY:
  When customer has selected CPU Parallelism with 'Y' during
  installation, i.e. the COLLECTCPUPARALLEL=Y parameter (CCP=Y)
  was set,  the PE Server code issues a START TRACE (ACCTG)
  CLASS(1,2,3,7,8) independent of customers desire and collects
  class 2, 3, 7, or 8 times in addition.  This can cause DB2
  performance degradation.
  
  PROBLEM CONCLUSION:
  The PE server PESERVER code is changed to issue a START
  TRACE (ACCTG) CLASS(1) only. However if class 2, 3, 7,
  or 8 was started by another trace (ACCTG or MONITOR) the
  additional data will be populated to CCP as well. Therefore
  the user can turn on the other classes to get the package
  detail, for example, if desired.
  

Problem conclusion

• The PE server PESERVER code is changed to issue a START
  TRACE (ACCTG) CLASS(1) only. However if class 2, 3, 7,
  or 8 was started by another trace (ACCTG or MONITOR) the
  additional data will be populated to CCP as well. Therefore
  the user can turn on the other classes to get the package
  detail, for example, if desired.
  
  KEYWORDS : TRACE (ACCTG) CLASS ACCOUNTING TRACE CPU
  PARALLELISM COLLECTCPUPARALLEL
  

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:

  UK34044 UK34045

Modules/Macros

• DGOVCCP  DGOVMSTR
  

Fix information

• Fixed component name

  OM XE DB2PE/PM

• Fixed component ID

  5655OPE00

Applicable component levels

• R310 PSY UK34044

     UP08/02/27 P F802

• R410 PSY UK34045

     UP08/02/27 P F802

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.