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IT25879: GATEWAY CONCENTRATOR CAN CAUSE JDBC DES CLIENTS TO FAIL TO AUTHENTICATE WHEN JDBC AES CLIENTS ARE ALSO BEING USED.

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APAR status

  • Closed as program error.

Error description

  • JDBC applications that connect through a DB2 Connect gateway to
    a DB2 for z/OS server can fail with authentication failures when
    the DB2 Connect gateway is using connection concentrator
    (MAX_CONNECTIONS > MAX_AGENTS) and if the JDBC applications are
    using a mix of DES and AES connection requests.
    

Local fix

  • a)  Disable Connection concentrator on the gateway
    
    or
    
    b)  Use a direct connection from JDBC to DB2 for z/OS without a
    gateway.   Connection concentrator can still be enabled at the
    JDBC driver using the enableConnectionConcentrator property.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ALL                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 10.5 Fix Pack 11 or higher                    *
    ****************************************************************
    

Problem conclusion

  • First fixed in Db2 10.5 Fixpack 11
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT25879

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    A50

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-08-01

  • Closed date

    2020-02-25

  • Last modified date

    2020-02-25

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    IT25880

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RA50 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":"10.5","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
05 November 2021