PM78988: IMS UCF (DFSUCF00) JOB ABEND2480 DUE TO UNAVAILABLE RECON.

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

  • When running IMS Utility Control Facility on IMS environment
    with the RECON Loss Notification exit enabled, the attached
    task for the UCF utility function and the task for DBRC group
    service are running under different TCB.
    Both tasks are sharing the same DBRC block. If both tasks
    be processed in parallel, unpredictable results can occur.
    In the case of this APAR, the UCF job abend2480 eventually.
    .
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: IMS V11 users of the Utility Control Facil-  *
    *                 ity in conjunction with RECON LOSS NOTIFIC-  *
    *                 ATION.                                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: There is a conflict between UCF attach- *
    *                      ing code with RECON Loss Notification   *
    *                      on and the EOJ call for Prefix Resol-   *
    *                      ution is missing from the RECON.        *
    ****************************************************************
    * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
    ****************************************************************
    Recon Loss Notification cannot function properly if executing
    a daughter TCB because it requires IMS to execute in the
    primary address space (PASN). There is a timing issue with the
    attached TCB intermittently finishing in the secondary address
    space (SASN) when an IMS function has not completed before
    the RECON Loss Notification has not been checked. The DFSURPR0
    DBRC EOJ call has a null address when using variable ATHRQDBA
    equal to zero causing it to be skipped and not recorded in
    the DBRC RECON.
    

Problem conclusion

  • GEN:
    KEYWORDS:
    
    *** END IMS KEYWORDS ***
    
    DFSURPR0 now uses PSTDBRCA instead of ATHRQDBA to address
             the parameter area for the DBRC EOJ call.
    
    DSPCRTR0 clear AUTH field for new request
    
    DSPURI10 is fixed to deregister from SCI when UCF is in use
             after RECON does physical close.
    
    DSPDSS01 is fixed to deregister from SCI when UCF is in use
             after RECON does physical close in BPE environment.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM78988

  • Reported component name

    IMS V11

  • Reported component ID

    5635A0200

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-11

  • Closed date

    2013-10-07

  • Last modified date

    2013-11-04

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

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

    PM86459 PM86460 UK98294

Modules/Macros

  •    DFSURGP0 DSPCRTR0 DSPDSS01 DSPURI01
    

Fix information

  • Fixed component name

    IMS V11

  • Fixed component ID

    5635A0200

Applicable component levels

  • R100 PSY UK98294

       UP13/10/15 P F310

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.



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Document information


More support for:

IMS

Software version:

100

Reference #:

PM78988

Modified date:

2013-11-04

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