A fix is available
APAR status
Closed as program error.
Error description
Customer observed SQL2049N rc=2 when setting DB2_DATABASE_CF_MEMORY equal to 0. As per the documentation link below, the expected behavior when DB2_DATABASE_CF_MEMORY is set to 0, and cf_db_mem_sz is set to automatic is that the database should be created with the smallest possible size of 32,768 4K pages. https://www.ibm.com/docs/en/db2/11.5?topic=configuration-cf-memo ry-parameter Instead what we see is the SCA is assigned a value of ~800GB, which on most systems will lead to SQL2049N rc=2 021-05-27-18.22.28.304184-240 E138651E1289 LEVEL: Severe PID : 16415 TID : 140580524910336 PROC : db2sysc 0 INSTANCE: db2inst1 NODE : 000 DB : SAMPLE APPHDL : 0-59 APPID: *N0.db2inst1.210527222227 AUTHID : DB2INST1 HOSTNAME: localhost EDUID : 31 EDUNAME: db2agnts 0 FUNCTION: DB2 UDB, Shared Data Structure Abstraction Layer for CF, SAL_MANAGEMENT_PORT_HANDLE::SAL_ManagementAllocateOneStruct, probe:7974 MESSAGE : CA RC= 2147879427 DATA #1 : String, 61 bytes CF structure allocation exception (structType,target_sz,SID): DATA #2 : SAL Structure Type, PD_TYPE_SAL_STRUCT_TYPE, 8 bytes Structure type 2 : sca DATA #3 : unsigned integer, 4 bytes 204256256
Local fix
Unset DB2_DATABASE_CF_MEMORY, restart the pureScale instance.
Problem summary
**************************************************************** * USERS AFFECTED: * * all * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to 11.1 FP7 or later * ****************************************************************
Problem conclusion
Upgrade to 11.1 FP7 or later
Temporary fix
Comments
APAR Information
APAR number
IT37436
Reported component name
DB2 FOR LUW
Reported component ID
DB2FORLUW
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-06-28
Closed date
2021-11-23
Last modified date
2021-11-23
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 FOR LUW
Fixed component ID
DB2FORLUW
Applicable component levels
RB10 PSN
UP
[{"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":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
04 May 2022