IBM Support

IC85566: .NET APPLICATION RAISES A .NET EXCEPTION WHEN CONNECTING TO A QUEUE MANAGER ON ISERIES

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APAR status

  • Closed as program error.

Error description

  • Message Service Client (XMS) .NET v2.0 application experiences
    an exception (IBM.WMQ.Nmqi.NmqiException) when connecting to a
    Queue Manager on an iSeries system.
    
    An FDC is generated with Probe Id: DN1550001, Component:
    MQRcvThread.Run()1, Comment: Invalid TSH flow is received on
    the receiver thread
    
    The following exception is seen in the XMS trace:
    
    [05/07/2012 09:17:18:117087 Mountain Standard Time] 00000004 d
    UOW= source=IBM.WMQ.Nmqi.MQRcvThread org=IBM prod=WebSphere
    component=Message Service Client for .NET thread=[1 : 0]
    Exception in method Run()1
    [05/07/2012 09:17:18:117087 Mountain Standard Time] 00000004 X
    UOW= source=IBM.WMQ.Nmqi.MQRcvThread org=IBM prod=WebSphere
    component=Message Service Client for .NET thread=[1 : 0]
    IBM.WMQ.Nmqi.NmqiException: Exception of type
    'IBM.WMQ.Nmqi.NmqiException' was thrown.
    [05/07/2012 09:17:18:117087 Mountain Standard Time] 00000004 d
    UOW= source=IBM.WMQ.Nmqi.MQRcvThread org=IBM prod=WebSphere
    component=Message Service Client for .NET thread=[1 : 0]
    Exception in method Run()1
    [05/07/2012 09:17:18:117087 Mountain Standard Time] 00000004 X
    UOW= source=IBM.WMQ.Nmqi.MQRcvThread org=IBM prod=WebSphere
    component=Message Service Client for .NET thread=[1 : 0]
    IBM.WMQ.Nmqi.NmqiException: Exception of type
    'IBM.WMQ.Nmqi.NmqiException' was thrown.
    at IBM.WMQ.Nmqi.MQRcvThread.Run()
    [05/07/2012 09:17:18:117087 Mountain Standard Time] 00000004 >
    UOW= source=IBM.WMQ.MQTCPConnection
    method=AsyncFailureNotify(NmqiException,Boolean) [:] org=IBM
    prod=WebSphere component=Message Service Client for .NET
    thread=[1 : 0]
    entry [IBM.WMQ.Nmqi.NmqiException: Exception of type
    'IBM.WMQ.Nmqi.NmqiException' was thrown.
    at IBM.WMQ.Nmqi.MQRcvThread.Run()] [False]
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    WebSphere MQ v7.5, v7.1 and v7.0.1 .NET client connecting to
    iSeries queue manager
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    While establishing the connection between WebSphere MQ .NET
    client and the iSeries queue manager, the .NET client expects
    data in ASCII format and the iSeries queue manager sends data
    in EBCDIC. Since the data received is not in the expected
    format the connection shuts down with MQRC_HOST_NOT_AVAILABLE
    error.
    

Problem conclusion

  • The WebSphere MQ .NET client code has been modified to accept
    dataflows from the server in EBCDIC format.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following:
    
                       v7.0
    Platform           Fix Pack 7.0.1.10
    --------           --------------------
    Windows            U200352
    
                       v7.1
    Platform           Fix Pack 7.1.0.3
    --------           --------------------
    Windows            7.1.0.3
    
    Version            v7.5
    --------           --------------------
    Fix available in:  7.5.0.2
    
    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

    IC85566

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-07-26

  • Closed date

    2012-10-08

  • Last modified date

    2013-07-08

  • 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

  • R710 PSY

       UP

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1"}]

Document Information

Modified date:
20 September 2021