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IT29273: ENCRLIB DB CFG PARAMETER CAN BE RESET TO THE DEFAULT VALUE AFTERAN INCREMENTAL RESTORE OPERATION.

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APAR status

  • Closed as program error.

Error description

  • After an incremental restore is issued, ENCRLIB db cfg parameter
    can be reset to the default value. When ENCRLIB is set to
    libdb2comp_encr.so before the restore, it may be changed to
    libdb2encr.so.
    
    Here is an example:
    
    $ db2 create db test encrypt
    $ db2 connect to test
    $ db2 update db cfg for test using ENCRLIB
    ~/sqllib/lib/libdb2compr_encr.so trackmod yes logarchmeth1
    disk:$PWD/arclogs
    $ db2 get db cfg for test | grep ENCRLIB
     Encryption Library for Backup         (ENCRLIB) =
    /opt/ibm/db2/V11.1/lib64/libdb2compr_encr.so.1
    $ db2 backup db test to /dev/null
    $ db2 backup db test
    $ db2 backup db test incremental
    $ ls TEST.*001
    TEST.0.v111fp4.DBPART000.20190523005431.001
    TEST.0.v111fp4.DBPART000.20190523005443.001
    $ db2 drop db test
     db2 restore db test incremental automatic taken at
    20190523005443 encrypt cipher aes key length 256 master key
    label my_manual_master_key
    $ db2 get db cfg for test | grep ENCRLIB
     Encryption Library for Backup         (ENCRLIB) = libdb2encr.so
    

Local fix

  • Change ENCRLIB parameter to the original value after the
    incremental restore.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users using encrypted database backup/restore                *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 Version 11.1 Fix Pack 6.                      *
    ****************************************************************
    

Problem conclusion

  • First fixed in Db2 Version 11.1 Fix Pack 6.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT29273

  • 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

    2019-05-27

  • Closed date

    2021-03-31

  • Last modified date

    2021-03-31

  • 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

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
04 May 2022