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DB2 - Problem description

Problem IC66630 Status: Closed

UPDATE DB CFG PARAMETERS MORE THAN 64 AT A TIME, MAY RESULT IN
UNEXPECTED BEHAVIOUR.

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
While updating more than 64 DB CFG parameters at a 
time, unexpected behaviour may occur such as infinite loops, or 
even traps. 
 
For eg: 
UPDATE DB CFG FOR TEST USING 
                                           DYN_QUERY_MGMT 
DISABLE 
                                              DISCOVER_DB 
ENABLE 
                                             DFT_QUERYOPT    5 
                                               DFT_DEGREE    1 
                                          DFT_SQLMATHWARN    NO 
                                          DFT_REFRESH_AGE    0 
                                           DFT_MTTB_TYPES 
SYSTEM 
                                           NUM_FREQVALUES    10 
                                            NUM_QUANTILES    20 
                                          SELF_TUNING_MEM    ON 
                                          DATABASE_MEMORY 
AUTOMATIC 
                                            DB_MEM_THRESH    10 
                                                 LOCKLIST 
AUTOMATIC 
                                                 MAXLOCKS 
AUTOMATIC 
                                               PCKCACHESZ 
AUTOMATIC 
                                           SHEAPTHRES_SHR 
AUTOMATIC 
                                                 SORTHEAP 
AUTOMATIC 
                                                   DBHEAP 
2422 
                                          CATALOGCACHE_SZ    260 
                                                 LOGBUFSZ    98 
                                             UTIL_HEAP_SZ 
5000 
                                                 BUFFPAGE 
1000 
                                          APPGROUP_MEM_SZ 
41573 
                                          GROUPHEAP_RATIO    70 
                                          APP_CTL_HEAP_SZ    512 
                                                 STMTHEAP 
4096 
                                               APPLHEAPSZ    256 
                                             STAT_HEAP_SZ 
4384 
                                                DLCHKTIME 
10000 
                                              LOCKTIMEOUT    10 
                                           CHNGPGS_THRESH    80 
                                           NUM_IOCLEANERS 
AUTOMATIC 
                                            NUM_IOSERVERS 
AUTOMATIC 
                                                INDEXSORT    YES 
                                                SEQDETECT    YES 
                                          DFT_PREFETCH_SZ 
AUTOMATIC 
                                                 TRACKMOD    ON 
                                            DFT_EXTENT_SZ    32 
                                                 MAXAPPLS 
AUTOMATIC 
                                                AVG_APPLS 
AUTOMATIC 
                                                 MAXFILOP    64 
                                                LOGFILSIZ 
1024 
                                               LOGPRIMARY    13 
                                                LOGSECOND    4 
                                               NEWLOGPATH 
<new_log_path> 
                                            MIRRORLOGPATH 
<new_mirror_path> 
                                          BLK_LOG_DSK_FUL    NO 
                                                  MAX_LOG    0 
                                             NUM_LOG_SPAN    0 
                                                MINCOMMIT    1 
                                                  SOFTMAX    520 
                                                LOGRETAIN    OFF 
                                                 USEREXIT    OFF 
                                             HADR_TIMEOUT    120 
                                            HADR_SYNCMODE 
NEARSYNC 
                                             LOGARCHMETH1    TSM 
                                              LOGARCHOPT1    '' 
                                             LOGARCHMETH2    OFF 
                                             NUMARCHRETRY    5 
                                           ARCHRETRYDELAY    20 
                                              AUTORESTART    ON 
                                                 INDEXREC 
SYSTEM 
                                            LOGINDEXBUILD    OFF 
                                          DFT_LOADREC_SES    1 
                                           NUM_DB_BACKUPS    2 
                                          REC_HIS_RETENTN    14 
                                               AUTO_MAINT    ON 
                                           AUTO_DB_BACKUP    OFF 
                                           AUTO_TBL_MAINT    ON 
                                            AUTO_RUNSTATS    ON 
                                          AUTO_STATS_PROF    OFF 
                                            AUTO_PROF_UPD    OFF 
                                               AUTO_REORG    OFF 
; 
 
This query is trying to update more than 64 DB CFG parameters at 
a time. It will not return to command line or may trap the 
instance.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* Prior to DB2 V97 FP3.                                        * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* UPDATE DB CFG PARAMETERS MORE THAN 64 AT A TIME, MAY RESULT  * 
* IN UNEXPECTED BEHAVIOUR.                                     * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade DB2 to DB2 V97 FP3.                                  * 
****************************************************************
Local Fix:
Please update less than 64 DB CFG parameters to avoid the 
unexpected behavior.
available fix packs:
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Solution
Problem first fixed in DB2 V97 FP3.
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
24.02.2010
19.01.2011
19.01.2011
Problem solved at the following versions (IBM BugInfos)
9.7.FP3
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.3 FixList
9.7.0.3 FixList
9.7.0.4 FixList