A fix is available
APAR status
Closed as program error.
Error description
Performance improvement for processing index log records in DB2. .
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 users. * **************************************************************** * PROBLEM DESCRIPTION: LOG APPLY PERFORMANCE IMPROVEMENT FOR * * INDEX LOG RECORDS. * **************************************************************** * RECOMMENDATION: * **************************************************************** Today, during index recovery (DB2 restart, Recover utility or Restore utility) using Fast Log Apply (FLA), prefetching of index pages is disabled. This results in slower index recovery compared to table space recovery using DB2 logs. This APAR will enable prefetch for index pages when FLA is used for index recovery. This will result in improved elapsed times for index recovery. The recovery log apply improvement may vary depending on the degree of random updates to the index pages.
Problem conclusion
DB2 index space log apply performance may be improved when fast log apply is used.
Temporary fix
Comments
APAR Information
APAR number
PI07694
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-12-09
Closed date
2014-01-06
Last modified date
2014-02-05
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI14003 UI14004 UI14005
Modules/Macros
DSNB1SPF DSNIFLAA DSNIFLRD DSNIRSTR
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RA10 PSY UI14003
UP14/01/21 P F401
RB10 PSY UI14004
UP14/01/21 P F401
R910 PSY UI14005
UP14/01/21 P F401
Fix is available
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Document Information
Modified date:
05 February 2014