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IZ50347: CONNECTION REQUEST MAY HANG IF AN APP SIMULTANEOUSLY OPENS CONNECTIONS USING DRIVERMANAGER AND DATASOURCE USING JCC DRIVER

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APAR status

  • Closed as program error.

Error description

  • When many connections are requested simultaneously, such as
    during startup of WAS with a large connection pool, there is a
    small chance of a hang situation due to timing in the db2jcc.jar
    

Local fix

  • Start connections one at a time.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * DB2 LUW v9.5, JCC Driver                                     *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * CONNECTION REQUEST MAY HANG IF AN APP SIMULTANEOUSLY         *
    * OPENSCONNECTIONS USING DRIVERMANAGER AND DATASOURCE USING    *
    * JCCDRIVER                                                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 LUW v9.5 Fixpak 6. JCC Driver                 *
    * Version3.59.81/4.9.78.                                       *
    ****************************************************************
    

Problem conclusion

  • First fixed in DB2 LUW v9.5 Fixpak 6. JCC Driver Version
    3.59.81/4.9.78
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ50347

  • Reported component name

    DB2 UDB ESE AIX

  • Reported component ID

    5765F4100

  • Reported release

    950

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-04-29

  • Closed date

    2010-07-27

  • Last modified date

    2010-07-27

  • 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 UDB ESE AIX

  • Fixed component ID

    5765F4100

Applicable component levels

  • R950 PSN

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"950","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
27 July 2010