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PK68506: COVP TRANSACTION ABENDS AEXY DURING WUI SHUTDOWN

A fix is available

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APAR status

  • Closed as program error.

Error description

  • When shutting down the WUI address space, an AEXY abend occurs
    due to the COVP transaction being purged.  This PURGE command
    against this transaction is via the COVG transaction.  At the
    time of the PURGE, the COVP task was in a USERWAIT.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICSPlex/SM V3R1M0 Users                 *
    ****************************************************************
    * PROBLEM DESCRIPTION:    You shut down a Web User Interface   *
    *                      (WUI) server and observe several AEXY   *
    *                      abends as suspended COVP tasks are      *
    *                      forcepurged.                            *
    ****************************************************************
    * RECOMMENDATION:    After applying the fix for this APAR,     *
    *                 all MASes which serve as Web User Interface  *
    *                 (WUI) servers must be recycled to pick up    *
    *                 the changed code.  Note that servers do not  *
    *                 have to be brought down and restarted at     *
    *                 the same time.                               *
    ****************************************************************
       Transaction COVP, the WUI Protected Resource Proxy, inter-
    faces between a user's API task and the CICS Web Interface.
    Module EYU0VPSN (VPSN - WUI Proxy Signon) prompts the user for
    an ID and password, and if valid, starts an instance of the API
    task COVA for the user.  After starting the API task, VPSN waits
    on an ECB which is posted by the started COVA task.  However, if
    the server CICS is shut down before the starting COVA task is
    suspended, COVP will not be dispatched, and may still have to be
    purged as the WUI server shuts down.
       Module EYU0VPSN waits for two different events, but sets the
    same SUSPENDVALUE for both.
    

Problem conclusion

  •    Module EYU0VPSN was modified to time out the wait for COVA to
    become active after 60 seconds.  In addition, the NAME passed to
    WAITCICS was modified to distinguish between the wait on the
    security service ("WaitAddU") and the wait for API Server task
    initialization ("WaitASLR").  Modules EYU0VGAI (VGAI - API
    Service LRT Initialization), EYU0VGEL (VGEL - API Service Event
    Processor), EYU0VKQP (VKQP - Service Queue Put Request),
    EYU0VKQR (VKQR - Service Queue Response), and EYU0VKQT (VKQT -
    Service Queue Terminate) were modified to suspend execution
    after they set the POST bit in a waiting task's interface ECB.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

  •    You shut down a Web User Interface
    (WUI) server and observe several AEXY
    abends as suspended COVP tasks are
    forcepurged.
    
    
       Transaction COVP, the WUI Protected Resource Proxy, inter-
    faces between a user's API task and the CICS Web Interface.
    Module EYU0VPSN (VPSN - WUI Proxy Signon) prompts the user for
    an ID and password, and if valid, starts an instance of the API
    task COVA for the user.  After starting the API task, VPSN waits
    on an ECB which is posted by the started COVA task.  However, if
    the server CICS is shut down before the starting COVA task is
    suspended, COVP will not be dispatched, and may still have to be
    purged as the WUI server shuts down.
       Module EYU0VPSN waits for two different events, but sets the
    same SUSPENDVALUE for both.
    
    
       Module EYU0VPSN was modified to time out the wait for COVA to
    become active after 60 seconds.  In addition, the NAME passed to
    WAITCICS was modified to distinguish between the wait on the
    security service ("WaitAddU") and the wait for API Server task
    initialization ("WaitASLR").  Modules EYU0VGAI (VGAI - API
    Service LRT Initialization), EYU0VGEL (VGEL - API Service Event
    Processor), EYU0VKQP (VKQP - Service Queue Put Request),
    EYU0VKQR (VKQR - Service Queue Response), and EYU0VKQT (VKQT -
    Service Queue Terminate) were modified to suspend execution
    after they set the POST bit in a waiting task's interface ECB.
    

APAR Information

  • APAR number

    PK68506

  • Reported component name

    CPSM CICS 3.1

  • Reported component ID

    5655M1501

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-07-02

  • Closed date

    2008-07-31

  • Last modified date

    2008-09-02

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

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

    PK68408 UK38574

Modules/Macros

  •    DYU0VGAI DYU0VGEL DYU0VKQS DYU0VPSN EYU0VGAI
    EYU0VGEL EYU0VKQP EYU0VKQR EYU0VKQT EYU0VPSN
    

Fix information

  • Fixed component name

    CPSM CICS 3.1

  • Fixed component ID

    5655M1501

Applicable component levels

  • R100 PSY UK38574

       UP08/08/04 P F808

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

Modified date:
22 February 2023