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IC76746: AN FDC WITH PROBE ID MC050011 IS GENERATED WHEN REBOOTING PASSIVE NODE IN MSCS CLUSTER.

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APAR status

  • Closed as program error.

Error description

  • After taking all WebSphere MQ v7 Queue Manager resources
    offline and rebooting the active node in the MSCS cluster, the
    cluster group resources are failed over to the passive node.
    The Queue Manager resource remains offline as expected, however
    an FDC is produced on the node that has been rebooted.
    The FDC generated is as follows:
    Probe Id          :- MC001002
    component         :- MQMOpen
    Process Name      :- C:\Windows\SysWOW64\rhs.exe
    Major Errorcode   :- xecF_E_UNEXPECTED_SYSTEM_RC
    Probe Description :- AMQ6119: An internal WebSphere MQ error
    has occurred
    (***CMQMException Caught***: Unable to open Parameters key.
    Error: 70)
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users who have WebSphere MQ configured in MSCS environment.
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    The MSCS process rhs.exe started by the cluster service tries to
    initialize the queue manager resource by invoking the MQ
    callback function MQMOpen. The MQMOpen routine in turn calls the
    cluster API ClusterRegCreateKey to open the Parameters registry
    key for the queue manager resource and this call fails with the
    windows error 70 (ERROR_SHARING_PAUSED). The FDC with the
    ProbeID MC001002 is generated to report this error.
    

Problem conclusion

  • Upon discussing this issue with Microsoft it was concluded that
    the error is getting reported due to the incorrect invocation
    of the cluster API ClusterRegCreateKey in the Open routine. The
    correct usage is documented in the below msdn article.
    http://msdn.microsoft.com/en-us/library/aa368990(v=vs.85).aspx
    
    Do not call ClusterRegCreateKey from the following resource DLL
    entry point functions:
    Close
    Offline
    Online
    Open
    Terminate
    ClusterRegCreateKey can be safely called from any other
    resource DLL entry point function or from a worker thread. For
    more information, see Function Calls to Avoid in Resource DLLs.
    
    The MQMOpen routine has been modified to invoke
    ClusterRegOpenKey instead of ClusterRegCreateKey.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.7
    --------           --------------------
    Windows            U200333
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available, information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC76746

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-06-01

  • Closed date

    2011-06-24

  • Last modified date

    2011-06-24

  • 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 WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R701 PSY

       UP

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Document Information

Modified date:
24 June 2011