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DB2 - Problem description

Problem IC90039 Status: Closed

DEADLATCH DURING MEMBER CRASH RECOVERY IN A DB2 PURESCALE ENVIRONMENT

product:
DB2 FOR LUW / DB2FORLUW / A10 - DB2
Problem description:
During crash recovery of a member in a DB2 pureScale cluster, 
there is a small timing window that can result in a deadlatch 
between the member and an agent running RUNSTATS on another 
member in the cluster.  If the deadlatch happens it causes the 
crash recovery to hang.  The related stacks would show as 
follows: 
 
Stack 1: 
sqlbFixPage 
sqliRefreshInfoPage 
sqliIP_CreatePage 
sqliIP_FixPage 
sqliHardenJITS 
sqldHardenJitsForAllIndexes 
sqlrLocalRunstats 
 
Stack 2: 
sqldLatchIndexes 
sqldInitIndexValidityLotch 
sqldAllocEmptyTCB 
... 
sqlpParallelRecovery
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* DB2 pureScale Environments                                   * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 version 10.1.0.3.                             * 
****************************************************************
Local Fix:
Use the FORCE APPLICATION command to force the application 
performing RUNSTATS off the system.  This will allow member 
crash recovery to complete.
available fix packs:
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows

Solution
The problem is first fixed in DB2 version 10.1.0.3.
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
05.02.2013
27.09.2013
27.09.2013
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)
10.1.0.3 FixList
10.1.0.3 FixList