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DB2 - Problem description

Problem IC96702 Status: Closed

UPDATING LOGARCHMETH1 DATABASE CONFIGURATION PARAMETER WHILE A DATABASE IS
BEING ACTIVATED CAN CAUSE DB2 TO HANG

product:
DB2 FOR LUW / DB2FORLUW / A10 - DB2
Problem description:
Updating LOGARCHMETH1 database configuration parameter while a 
database is being activated can cause DB2 to hang. db2pd -latch 
reports deadlatch between latches 
SQLO_LT_SQLE_KRCB__cfg_change_latch and 
SQLO_LT_sqeDBMgr__dbMgrLatch. 
 
Here are stack trace examples: 
 
sqloXlatchConflict 
sqlpglhu 
sqlfgtlp 
sqlfVerifyLogArchMeth 
sqlf_upd_parm 
sqlf_upd_parm 
sqlfUpdateDbCfg 
sqlfDispatchDbCfgUpdate 
sqlfudb_backend 
sqlfudb_backend 
sqlesrvr 
sqleMappingFnServer 
sqlerKnownProcedure 
sqlerCallDL 
 ..(snip).. 
<LatchInformation> 
Waiting on latch type: (SQLO_LT_sqeDBMgr__dbMgrLatch) - Address: 
(7800000005701e8), Line: 395, File: sqlpglhu.C 
Holding Latch type: (SQLO_LT_SQLE_KRCB__cfg_change_latch) - 
Address: (7800000002a65a0), Line: 3227, File: sqlf_db_op.C 
HoldCount: 1 
</LatchInformation> 
 
 
sqloXlatchConflict 
sqlfUpdateDbCfg 
FirstConnect 
StartUsingLocalDatabase 
AppStartUsing 
AppLocalStart 
sqlelostWrp 
sqleUCengnInit 
sqleUCagentConnect 
sqljsConnectAttach 
 ..(snip).. 
<LatchInformation> 
Waiting on latch type: (SQLO_LT_SQLE_KRCB__cfg_change_latch) - 
Address: (7800000002a65a0), Line: 3227, File: sqlf_db_op.C 
Holding Latch type: (SQLO_LT_sqeDBMgr__dbMgrLatch) - Address: 
(7800000005701e8), Line: 670, File: sqle_database_services.C 
HoldCount: 1 
</LatchInformation>
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 10.1 Fix Pack 4.                      * 
****************************************************************
Local Fix:
available fix packs:
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows

Solution
First fixed in DB2 Version 10.1 Fix Pack 4.
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
08.10.2013
02.06.2014
02.06.2014
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)
10.1.0.4 FixList