IBM Support

IT16230: MQ8: AMQP SERVICE ON WINDOWS STOPS WHEN MCA USER ID IS BLANK ANDAMQXR2051E IS ISSUED.

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APAR status

  • Closed as program error.

Error description

  • AMQP service on Windows stops when MCA user id on the channel is
    blank and AMQXR2051E is issued.
    If MCA userid is filled in, all works well.
    
    The following errors can be observed in the error log:
    
    AMQXR0016I: The 'TEST' channel was started
    AMQXR2051E: Login failed for Client Identifier null
                javax.security.auth.login.LoginException: Null
    userName.
    AMQ5029: Service 'SYSTEM.AMQP.SERVICE' terminated. Process ID(
    3048 ).
    
    The following FDC may also be observed:
    
    WebSphere MQ First Failure Symptom Report
    Operating System  :- Windows Server 2012 R2 Server Datacenter
    Edition, Build 9200
    LVLS              :- 8.0.0.4
    Product Long Name :- WebSphere MQ for Windows (x64 platform)
    Probe Id          :- ZX005022
    Component         :- zxcProcessChildren
    UserID            :- MUSR_MQADMIN
    Process Name      :- C:\Program
    Files\IBM\WebSphereMQ\bin64\amqzxma0.exe
    Major Errorcode   :- lrcW_S_FAST_PATH_APP_DEAD
    Minor Errorcode   :- OK
    Probe Type        :- MSGAMQ7159
    Probe Description :- AMQ7159: A FASTPATH ??application
    terminated unexpectedly.
    
    MQM Function Stack
    amqzxma0
    zxcExecutionController
    zxcProcessChildren
    xcsFFST
    
    Data: 0x00000508
    -} xcsCheckProcess rc=xecP_E_INVALID_PID
    -{ xcsBuildDumpPtr
    --{ xcsGetMemFn
    --} xcsGetMemFn rc=OK
    -} xcsBuildDumpPtr rc=OK
    -{ xcsBuildDumpPtr
    -} xcsBuildDumpPtr rc=OK
    -{ xlsRequestMutex
    -} xlsRequestMutex rc=OK
    -{ xcsGetMemFn
    -} xcsGetMemFn rc=OK
    -{ xcsBuildDumpPtr
    -} xcsBuildDumpPtr rc=OK
    -{ xcsBuildDumpPtr
    -} xcsBuildDumpPtr rc=OK
    -{ xcsFFST
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users using the AMQP listener to handle MQTT connections
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    The AMQP listener did not correctly handle the case where an
    MQTT channel was in use, and made an illegal memory access.
    

Problem conclusion

  • The AMQP listener has been corrected to avoid making an illegal
    memory access when handling MQTT channels.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.5
    
    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

    IT16230

  • Reported component name

    WMQ BASE MULTIP

  • Reported component ID

    5724H7251

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-07-20

  • Closed date

    2017-01-20

  • Last modified date

    2017-01-20

  • 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 BASE MULTIP

  • Fixed component ID

    5724H7251

Applicable component levels

  • R800 PSY

       UP

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Document Information

Modified date:
20 January 2017