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PI24050: WMQ: ABN=5C6-00940029 IN CSQMCIG2+00000EAA

A fix is available

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APAR status

  • Closed as program error.

Error description

  • An ABEND5C6 occurred with this dump title:
    XXXX,ABN=5C6-00940029,U=SYSOPR  ,C=W9700.800.CMC -CS
      QMCIG2,M=CSQGFRCV,LOC=CSQMCLLM.CSQMCIG2+xxxxxxxx
    
    
    Reason code 00940029 means "Bad URE log rec".
    
    The queue manager (CSQ1 in this example) receives a request to
    resolve an indoubt group UR, and tries to communicate with
    other queue managers in the Queue Sharing Group ( QSG ) to
    resolve it. As the other queue manager in question is not
    available (queue manager id 03), CSQ1 goes ahead and reads the
    logs for that queue manager. It finds an IMS Bridge checkpoint
    log record, containing TTE entries, which does not have the
    expected URE layout. This is unexpected and causes the abend to
    be issued.
    
    
    Additional Symptom(s) Search Keyword(s):
    ABEND5C6 ABENDS5C6 5C6 S5C6 S05C6 00940029
    .
    ABN=5C6-0094002A,U=SYSOPR  ,C=W9700.800.CMC -CSQMCIG2,
    M=CSQGFRCV,LOC=CSQMCLLM.CSQMCIG2+xxxxxxxx
      where 0094002A means "Bad RURE log rec".
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
    *                 Release 0 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: When inquiring indoubt group units of   *
    *                      recovery the queue manager abends with  *
    *                      5C6-00940029 or 5C6-0094002A.           *
    *                      This only happens in a QSG environment  *
    *                      where some of the queue managers have   *
    *                      IMS bridge queues defined.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The IMS Bridge writes log records during checkpoints that look
    similar to URE and RURE log records. Under certain conditions,
    the code inquiring group indoubt units of work (CSQMCIG2)
    processes the IMS Bridge records, even though they should be
    ignored. CSQMCIG2 detects the missing eye catcher, and the abend
    is issued.
    

Problem conclusion

  • The code has been changed to correctly ignore IMS Bridge log
    records and complete the inquire group ur request.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI24050

  • Reported component name

    WMQ Z/OS 8

  • Reported component ID

    5655W9700

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-08-18

  • Closed date

    2014-11-05

  • Last modified date

    2015-02-03

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

    PI22337

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

    UI22791

Modules/Macros

  • CSQMCIG2
    

Fix information

  • Fixed component name

    WMQ Z/OS 8

  • Fixed component ID

    5655W9700

Applicable component levels

  • R000 PSY UI22791

       UP15/01/29 P F501

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 May 2020