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PM48334: PLOCK NEGOTIATION RETRY LOGIC RESULTING IN DELAYS AND 10 SECOND NOT ACCOUNT TIME

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • P-lock negotiation retry logic was resulting in delays and
    transaction timeouts, when there was problems with the links or
    structures
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 data sharing users.                  *
    ****************************************************************
    * PROBLEM DESCRIPTION: User transactions occasionally          *
    *                      experience a 10-second delay in         *
    *                      response time. The delay may cause      *
    *                      the transactions to time out.           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    For an unusual occurrence of a 10-second wait before a retry
    operation, the 10-second wait time causes a noticeable delay
    in user transactions.
    

Problem conclusion

  • DB2 has been fixed to reduce the wait time if a retry operation
    is needed.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM48334

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-09-20

  • Closed date

    2011-11-07

  • Last modified date

    2011-12-02

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

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

    UK73606 UK73607 UK73608

Modules/Macros

  •    DSNB1CLM DSNB1DRA DSNB1GC1 DSNB1PLK DSNB1POC
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UK73606

       UP11/11/22 P F111

  • R810 PSY UK73607

       UP11/11/22 P F111

  • R910 PSY UK73608

       UP11/11/22 P F111

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



Document information

More support for: DB2 for z/OS

Software version: 910

Reference #: PM48334

Modified date: 02 December 2011


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