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PK82289: 'CEMT P SHUT' COMMAND, CICSGOES INTO 'HUNG' STATE.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • shutdown hang is caused by a CONSOLE request received during
    shutdown.The modify command received, CEMT S PROG(IED0143) PH,
    has caused DFHZCNA to create a CWE for CATA to be started
    because the userid tokenreceived in the request is different
    fromthe one in the SNEX associatedwith the CCE/TCTTE for
    console COPY, console name NEWCOPY.
    SIGNOFF/SIGNON is active for that console.
    The XMAT ATTACH is issued by DFHZACT for CATA. DFHXMAT returned
    anexception response with reason NOT_ENABLED_FOR_SHUTDOWN and
    attach CSAC instead.
    CSAC run and issues message DFHAC2007.
    On the next TCP scan DFHZCNA find the CIB still on the Queue and
    because TCTTE_SIGNON is on in the CCE the process is defered
    causing the shutdown to hang.
    .
    cics trace will be as follows.
    TCP   QR    AP 4D01 CQCQ  EXIT  GET_CIB/EXCEPTION
    TCP   QR    DS 0004 DSSR  ENTRY WAIT_OLDW
    TCP   QR    DS 0005 DSSR  EXIT  WAIT_OLDW/OK
    TCP   QR    AP 4D00 CQCQ  ENTRY MERGE_CIB_QUEUES
    TCP   QR    AP 4D01 CQCQ  EXIT  MERGE_CIB_QUEUES/OK
    TCP   QR    AP 4D00 CQCQ  ENTRY GET_CIB
    TCP   QR    AP 4D01 CQCQ  EXIT  GET_CIB/OK
    TCP   QR    AP 4D00 CQCQ  ENTRY MERGE_CIB_QUEUES
    TCP   QR    AP 4D01 CQCQ  EXIT  MERGE_CIB_QUEUES/OK
    TCP   QR    AP 4D00 CQCQ  ENTRY GET_CIB
    TCP   QR    AP 4D01 CQCQ  EXIT  GET_CIB/OK
    TCP   QR    AP FCF0 ZCNA  EVENT MODIFY_COMMAND_RECEI
    TCP   QR    AP 4D00 CQCQ  ENTRY DEFER_CIB
    TCP   QR    AP 4D01 CQCQ  EXIT  DEFER_CIB/OK
    .
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: CICS Shutdown hangs when Console        *
    *                      request is received during Shutdown.    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During CICS Shutdown a Modify command is issued from a console.
    This console was previously used by a different user, so CATA is
    attached to signoff the old user, and sign on the new user. But
    CATA is defined as Shutdown Disabled, so the attach fails, and
    the task suspended. Another Modify command comes in from the
    same console, and the userid is unknown since the previous
    sign off / sign on has not been actioned. The CIB for this is
    added to the deferred queue with the TCTCE_SIGNON bit left on,
    and while items remain on this deferred queue CICS cannot
    shutdown.
    
    Additional keywords: MSGDFHAC2007 CATR
    

Problem conclusion

  • DFHZACT has been altered to turn off the TCTCE_SIGNON bit when
    CATA has failed
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

  • ž**** PE09/09/23 FIX IN ERROR. SEE APAR PK96919  FOR DESCRIPTION
    

APAR Information

  • APAR number

    PK82289

  • Reported component name

    CICSTS V3 Z/OS

  • Reported component ID

    5655M1500

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-03-11

  • Closed date

    2009-06-01

  • Last modified date

    2009-10-20

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

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

    UK47089 UK47090 PK88757

Modules/Macros

  •    DFHZACT
    

Fix information

  • Fixed component name

    CICSTS V3 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R400 PSY UK47089

       UP09/06/05 P F906

  • R500 PSY UK47090

       UP09/06/05 P F906

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: CICS Transaction Server

Software version: 3.2

Reference #: PK82289

Modified date: 20 October 2009