A fix is available
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 number
PK59273
Reported component name
OM XE DB2PE/PM
Reported component ID
5655OPE00
Reported release
410
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2008-01-14
Closed date
2008-02-26
Last modified date
2008-03-03
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
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.
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Document Information
Modified date:
03 March 2008