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IC77904: LONG DATABASE CONNECT TIMES IN A DPF ENVIRONMENT DUE TO LENGTHY HOSTNAME RESOLUTION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • We are working on AIX 5.3 system. It is a DPF environment with
    DB2 9.7 fp1.
    
    When connecting to a database, we encounter lengthy connect
    times.
    
    The connection of the clients to the servers is very slow. They
    connect with the host name
    only, not with the fully qualified hostname (FQHN,
    hostname@domain).  The servers try to determine the FQHN by
    checking a list of their DNS servers which can take up to 30
    seconds
    

Local fix

  • Reduce the DNS Search List
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * all                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade  to db2 version 9.7 fp 6                             *
    ****************************************************************
    

Problem conclusion

  • Reduce the DNS Search List
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC77904

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-08-04

  • Closed date

    2012-07-17

  • Last modified date

    2012-07-17

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

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

    IC84249

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSY

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC77904

Modified date: 17 July 2012