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DB2 - Problem description

Problem IT29233 Status: Closed

INSTANCE PANIC WHEN PAGE CLEANER AIO FAILS DUE TO OUT-OF-MEMORY ERROR.

product:
DB2 FOR LUW / DB2FORLUW / B10 - DB2
Problem description:
If a Page Cleaner is returned an out-of-memory error (SQLO_MEM)
while collecting outstanding AIO it will cause the instance to
panic on DPF and pureScale environments. The follow messages can
be seen in db2diag.log:

EDUID   : 122                  EDUNAME: db2pclnr (XXXX) 6
FUNCTION: DB2 UDB, oper system services, sqloLioAIOCollect,
probe:100
MESSAGE : ZRC=0x870F0024=-2029060060=SQLO_MEM "out of memory"
          DIA8533C The system memory limit was reached.

EDUID   : 122                  EDUNAME: db2pclnr (XXXX) 6
FUNCTION: DB2 UDB, buffer pool services,
sqlbClnrAsyncWriteCompletion, probe:40
MESSAGE : ZRC=0x870F0024=-2029060060=SQLO_MEM "out of memory"
          DIA8533C The system memory limit was reached.

EDUID   : 122                  EDUNAME: db2pclnr (XXXX) 6
FUNCTION: DB2 UDB, buffer pool services,
sqlbClnrAsyncWriteCompletion, probe:300

EDUID   : 122                  EDUNAME: db2pclnr (BLUDB) 6
FUNCTION: DB2 UDB, buffer pool services,
sqlbClnrAsyncWriteCompletion, probe:301
DATA #1 : Buffer page descriptor, PD_TYPE_SQLB_BPD, 256 bytes
    Pagekey: {pool:1;obj:12;type:128} PPNum:53238

EDUID   : 122                  EDUNAME: db2pclnr (XXXX) 6
FUNCTION: DB2 UDB, RAS/PD component, pdStartFODC, probe:10
MESSAGE : ADM14001C  An unexpected and critical error has
occurred: "Panic".
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* ALL                                                          *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Db2 11.1 Mod 4 Fixpack 5 or higher                *
****************************************************************
Local Fix:
Ensure there is sufficient memory and swap available to Db2.
Solution


Workaround


not known / see Local fix


Timestamps


Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

22.05.2019
16.01.2020
16.01.2020


Problem solved at the following versions (IBM BugInfos)




Problem solved according to the fixlist(s) of the following version(s)