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PI27433: WMQ Z/OS: ABEND5C6-00C51167 IN CSQERAS1+0000095A

A fix is available


You can track all active APARs for this component.


APAR status

  • Closed as unreproducible in next release.

Error description

  • ABN=5C6-00C51167,S=00000825,C=R3600.710.CFM
    occurs because CSQERAS1 is trying to update an eUOWD (Unit of
    Work control block) for an application structure other than the
    one it was processing.
    This is followed by
    Additional Symptom(s) Search Keyword(s):
    ABEND5C6 ABENDS5C6 5C6 S5C6 S05C6 00C51167 00C510AD CSQEOCRQ
    Queue Sharing Group QSG

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
    *                 Release 1 Modification 0.                    *
    * PROBLEM DESCRIPTION: Abend 5C6-00C51167 occurs in CSQERAS1   *
    *                      when a queue manager reconnects to a    *
    *                      CF structure.                           *
    * RECOMMENDATION:                                              *
    When a queue manager connects to a CF structure, CSQERAS1 is
    called to recover the queue manager's connection to the
    structure if it had previously disconnected from the structure
    due to a failure. If CSQERAS1 reads an eUOWD from the admin
    structure that relates to a structure other than the one that
    is being recovered, it can incorrectly attempt to write it
    back to the admin structure with an updated version number.
    The 5C6-00C51167 abend occurs if the eUOWD happens to be
    deleted between CSQERAS1 reading and attempting to update it,
    causing the write to the admin structure to fail unexpectedly.

Problem conclusion

Temporary fix


  • CSQERAS1 has been corrected so that it does not attempt to
    update eUOWDs that relate to work on CF structures other than
    the one that is being recovered.

APAR Information

  • APAR number


  • Reported component name

    WMQ Z/OS V7

  • Reported component ID


  • Reported release


  • Status


  • PE




  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date


  • Closed date


  • Last modified date


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

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




Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID


Applicable component levels

  • R100 PSY UI22666

       UP14/12/04 P F412

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:
02 January 2015