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PH12722: DFHMQTSK DOESN'T PREVENT THE MQMONITORS STOPPING AFTER AN AOR ABNORMAL DISCONNECT MESSAGE DFHMQ0392

A fix is available

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APAR status

  • Closed as program error.

Error description

  • CICS issued the message DFHMQ0119D after a CICS AOR goes down:
    
    
    ----------------------------------------------------------------
    DFHDB8122I CICS is about to disconnect from DBCTL for CICS
    shutdown.
    DFHDB8123I CICS disconnection from DBCTL for CICS shutdown has
    completed successfully.
    DFHMQ0119D CICS detected an IRC failure. Cannot start
    transaction F0EH.
    DFHMQ0107 I A request to end CKTI has been received. CKTI ended.
    DFHMQ0392 I Stop requested for mqmonitor INITQ, transaction
    CKTI.
    ----------------------------------------------------------------
    
    When MROFSE=YES, CICS working as designed. This type of issue is
    not specific to CKTI. It can happen to any user transaction.
    
    The CKTI task cannot do very much about this when this situation
    happen other than reporting the issue via message DFHMQ0119D.
    
    When this type of issue happen, the DISTRIBUTED DYNAMIC ROUTING
    PROGRAM, in the customer case EYU9XLOP, could have decided of
    another action instead of returning a return code of 8 in
    DYRRETC (ABORT).
    
    When an AOR goes down, this should be handle by the DISTRIBUTED
    ROUTING PROGRAM and not by changing DFHMQTSK.
    
    An alternative is specified MROFSE=NO and allowed the mirror
    task to terminate and the session to be FREE. The next request
    will cause an ALLOCATE to the same AOR to failed which may be
    easier to be handle by the DISTRIBUTED ROUTING PROGRAM than the
    AZI4 abend and reroute the request to a different AOR.
    
    But MROFSE is set to NO.
    
    The mirror task is not terminating and freeing the session, in
    spite of the MROFSE=NO.
    

Local fix

  • No Local Fix.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS Users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: CKTI MQMonitor is stopped after         *
    *                      message DFHMQ0119D is received.         *
    ****************************************************************
    All CKTI MQMonitors in a CICS region are stopped when message
    DFHMQ0119D is issued because an attached AOR has become
    unavailable. The MQMonitors should not be stopped in this case
    as work can still continue to be processed in other AORs.
    
    Keywords: msgDFHMQ0119D ATNI AZI6 abendATNI abendAZI6
    

Problem conclusion

  • DFHMQTSK has been changed to avoid stopping CKTI MQMonitors
    for network abends.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH12722

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-06-03

  • Closed date

    2019-09-05

  • Last modified date

    2019-10-01

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

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

    UI65152

Modules/Macros

  • DFHMQTSK
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R100 PSY UI65152

       UP19/09/06 P F909

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:
01 October 2019