IBM Support

IT29768: DB2 PURESCALE MEMBER MAY HIT FODC_PANIC DUE TO XI FAILURES IN RUSCENARIO.

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APAR status

  • Closed as program error.

Error description

  • After updating the CF's to V11.1.4.4, members on V11.1.4.4 may
    begin to experience XI failures if there are any members
    remaining on the previous Db2 level. Eventually, these errors
    may cause the member to FODC.
    
    This is due to the primary CF on the V11.1.4.4 level being
    unable to invalidate pages on down level members on behalf of
    V11.1.4.4 members. This will often result in the V11.1.4.4
    members reaching the communication timeout and causing a FODC 6
    minutes after the initial XI failures.
    

Local fix

  • This issue can be avoided by updating all members to a higher
    level before updating the CFs. If the cluster is already in a
    state with mixed level members, shutdown the lower level members
    and update them to V11.1.4.4 before bringing them back online.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ALL                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1 Mod 4 Fixpack 5 or higher                *
    ****************************************************************
    

Problem conclusion

  • First fixed in Db2 11.1 Mod 4 Fixpack 5
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT29768

  • 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

    2019-07-18

  • Closed date

    2020-01-16

  • Last modified date

    2020-01-16

  • 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

  • RB10 PSN

       UP

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Document Information

Modified date:
16 January 2020