IBM Support

IT31868: INSTANCE WITH MULTIPLE DATABASES TRAPPED ON HADR TAKEOVER OR REPLAY ONLY WINDOW

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APAR status

  • Closed as program error.

Error description

  • If a Db2 instance has more than one database, there is a timing
    window that could cause trap during HADR takeover processing on
    the primary or standby, or during replay only window processing
    on standby.
    
    The following is a sample stack dump during HADR TAKEOVER
    processing:
    
    <StackTrace>
    ossDumpStackTraceInternal
    ossDumpStackTraceV98
    OSSTrapFile::dumpEx
    sqlo_trce
    sqloEDUCodeTrapHandler
    sqleInterruptApplication
    sqeLocalDatabase::HdrKickPooledAgents
    hdrTakeoverForceApp
    sqleIndCoordProcessRequest
    sqeAgent::RunEDU
    sqzEDUObj::EDUDriver
    sqloEDUEntry
    </StackTrace>
    
    
    The following is a sample stack dump during replay only window
    processing:
    
    <StackTrace>
    ossDumpStackTraceInternal
    ossDumpStackTraceV98
    OSSTrapFile::dumpEx
    sqlo_trce
    sqloEDUCodeTrapHandler + 0x02ac
    sqleInterruptApplication
    sqeLocalDatabase::HdrKickPooledAgents
    sqeLocalDatabase::HdrForceAppsInReplayOnlyWindow
    sqlpPRecReadLog
    sqlpParallelRecovery
    sqleSubCoordProcessRequest
    sqeAgent::RunEDU
    sqzEDUObj::EDUDriver
    sqloEDUEntry
    </StackTrace>
    
    In the db2diag.log you might see the following message just
    before the trap:
    
    2020-01-15-04.42.58.238781-480 I19501507E503         LEVEL: Info
    PID     : 49879                TID : 140680550672128 PROC :
    db2sysc 0
    INSTANCE: db2inst1             NODE : 000            DB   :
    DB2PROD
    APPHDL  : 0-14                 APPID: *LOCAL.DB2.200115004701
    HOSTNAME: XXXXXXXXXXXXXXXXX
    EDUID   : 97                   EDUNAME: db2redom (DB2PROD) 0
    FUNCTION: DB2 UDB, base sys utilities,
    sqeLocalDatabase::HdrKickPooledAgents, probe:10
    DATA #1 : <preformatted>
    Interrupting agent with eduid:67
    
    2020-01-15-04.42.58.325919-480 I19502011E582         LEVEL:
    Error
    PID     : 49879                TID : 140680550672128 PROC :
    db2sysc 0
    INSTANCE: db2inst1             NODE : 000            DB   :
    DB2PROD
    APPHDL  : 0-14                 APPID: *LOCAL.DB2.200115004701
    HOSTNAME: XXXXXXXXXXXXXXXXXx
    EDUID   : 97                   EDUNAME: db2redom (DB2PROD) 0
    FUNCTION: DB2 UDB, base sys utilities, sqleagnt_sigsegvh,
    probe:1
    MESSAGE : Error in agent servicing application with coor_node:
    DATA #1 : Hexdump, 2 bytes
    0x00007FF2BE00EF72 : 0000
    ..
    :
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * all                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to 	db2_v111m4fp6 or higher                          *
    ****************************************************************
    

Problem conclusion

  • Upgrade to 	db2_v111m4fp6 or higher
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT31868

  • 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

    2020-02-14

  • Closed date

    2021-02-22

  • Last modified date

    2021-02-22

  • 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

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1"}]

Document Information

Modified date:
27 February 2021