Fixes are available
DB2 Version 9.1 Fix Pack 7 for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 7a for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 8 for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 9 for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 10 for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 11 for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 12 for Linux, UNIX and Windows
APAR status
Closed as program error.
Error description
The SET WRITE SUSPEND session is waiting in the following stack: (6) 0xc00000000032f310 _semtimedop_sys + 0x30 [/usr/lib/hpux64/libc.so.1] (7) 0xc00000000033d870 _semtimedop + 0xb0 [/usr/lib/hpux64/libc.so.1] (8) 0xc00000000915ce10 sqloWaitEDUWaitPost + 0x350 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (9) 0xc00000000a125170 _Z21sqlbPauseCleanerGroupP20SQ + 0x5f0 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (10) 0xc00000000a125e50 _Z20sqlbPauseAllCleanersP12SQLB + 0x170 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (11) 0xc00000000a1f6ae0 _Z16sqlbSuspendWritetP12SQLB_GLOBALS + 0x350 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (12) 0xc00000000a1fc990 _Z17sqlbSetPoolChangeP5sqldaS0_P5sqlca + 0x1150 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] ... There is a bigger chance to run into this issue on platforms, where LIO is not implemented, like HP. This APAR adds some timeout code to pagecleaners, so that the pausing of pagecleaners finish in a timely manner.
Local fix
Do not run SET WRITE SUSPEND, while there is load on the database.
Problem summary
The SET WRITE SUSPEND session is waiting in the following stack: (6) 0xc00000000032f310 _semtimedop_sys + 0x30 [/usr/lib/hpux64/libc.so.1] (7) 0xc00000000033d870 _semtimedop + 0xb0 [/usr/lib/hpux64/libc.so.1] (8) 0xc00000000915ce10 sqloWaitEDUWaitPost + 0x350 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (9) 0xc00000000a125170 _Z21sqlbPauseCleanerGroupP20SQ + 0x5f0 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (10) 0xc00000000a125e50 _Z20sqlbPauseAllCleanersP12SQLB + 0x170 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (11) 0xc00000000a1f6ae0 _Z16sqlbSuspendWritetP12SQLB_GLOBALS + 0x350 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] (12) 0xc00000000a1fc990 _Z17sqlbSetPoolChangeP5sqldaS0_P5sqlca + 0x1150 [/opt/IBM/db2/V8.1/lib64/libdb2e.so] ... There is a bigger chance to run into this issue on platforms, where LIO is not implemented, like HP. This APAR adds some timeout code to pagecleaners, so that the pausing of pagecleaners finish in a timely manner.
Problem conclusion
First fixed in DB2 UDB Version 9.1, FixPak 7.
Temporary fix
See LOCAL FIX.
Comments
APAR Information
APAR number
IZ25687
Reported component name
DB2 UDB ESE HP-
Reported component ID
5765F4103
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2008-06-30
Closed date
2009-04-15
Last modified date
2009-04-15
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
DB2 UDB ESE HP-
Fixed component ID
5765F4103
Applicable component levels
R810 PSN
UP
R820 PSN
UP
R910 PSN
UP
R950 PSN
UP
[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"910"}]
Document Information
Modified date:
03 October 2021