IBM Support

IT28890: DB2ICRT MAY BE SLOW TO COMPLETE

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APAR status

  • Closed as program error.

Error description

  • db2icrt may be slow to complete due to an inefficiency in the
    way ports are scanned.
    
    Db2 searches for a range of ports that are :
    * not reserved in /etc/services
    * are not actually used on the server when db2icrt is run (by an
    attempt to bind a socket on that port - that takes roughly a
    second and where the most time is spent)
    
    per example , in a worst-case conditions like opening 500 ports,
    one every 6, which resulted in no consecutive range of 6 ports
    between 60000 and 60300 being available, db2icrt can take up to
    an hour to complete.
    
    This APAR is to change the logic for port assignments during
    instance creation
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IT28890

  • 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

    2019-04-23

  • Closed date

    2021-03-15

  • Last modified date

    2021-03-15

  • 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

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1"}]

Document Information

Modified date:
16 March 2021