IBM Support

PK15608: TRANSACTION CWXN FAILS WITH ABENDAPC3 AFTER A COLD START OF CICS.

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Transaction CWXN receives abendAPC3 after a COLD START of the
    CICS region is done. Some of the additional symptoms are:
    DFHAC2236 07/10/2005 10:36:28 DBTBCIDA Transaction CWXN abend
    AEI0
    in program DFHXMAB term ????. Updates to local
               recoverable resources will be backed
    out.
    DFHAC2263 07/10/2005 10:36:28 DBTBCIDA Transaction CWXN abend
    ASOD
    in program DFHXMAB term ???? DFHPEP has abnormally
    terminated.
    The reason for this failure is as soon as the TCPIPSERVICE has
    been installed, the CWXN transaction is started. However, it
    could be that LE/370 has not yet initialized which triggers the
    APC3 abend.
    In previous releases  CWXN was potentially started before
    control was given to CICS but at a time when all the CICS
    function was available (only problems caused by PLT
    initialisations not yet completed. In release 3.1 it seems the
    timing if more favorable for an error.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All.                                         *
    ****************************************************************
    * PROBLEM DESCRIPTION: Various problems caused by user         *
    *                      transactions being attached during      *
    *                      initialization, before control is       *
    *                      given to CICS.                          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    CSOL, the sockets listener transaction, waits on socket
    domain initialization to complete before it processes any input
    from TCPIPSERVICE connections. This may happen before PLT
    processing and before LE initialization is complete.
    If TCPIPSERVICEs are installed from the GRPLIST or restored
    from the catalog and defined as OPEN then CSOL can accept
    new connections and attach receiver tasks before Language
    Environment has finished initialization and before the PLT
    programs have run. This can cause various problems, typically
    for transactions attempting to use resources which have not yet
    been initialized by the PLT programs and for any LE-enabled
    programs which may be invoked.
    PK15650 addresses the corresponding
    problem at CICS Transaction Server
    for OS/390 Version 1.3.
    Additional keywords: DFHSI1517 SI1517 MSGDFHSI1517
    

Problem conclusion

  • DFHSODM has been altered to wait for CICS initialization to
    complete before the ECB is posted which allows CSOL to begin
    processing input from TCPIPSERVICE connections.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PK15608

  • Reported component name

    CICSTS 3.1 Z/OS

  • Reported component ID

    5655M1500

  • Reported release

    400

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / Pervasive

  • Submitted date

    2005-11-22

  • Closed date

    2006-03-09

  • Last modified date

    2006-04-04

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

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

    UK12505

Modules/Macros

  •    DESSODM  DESSOIS  DFHSODM  DFHSOIS
    

Fix information

  • Fixed component name

    CICSTS 3.1 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R400 PSY UK12505

       UP06/03/14 P F603

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.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.1","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.1","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
04 April 2006