IBM Support

IT22938: AMQ9777 Reports CLNTUSER(mqm) not CLNTUSER(<MCAUSER>) when ChlAuthEarlyAdopt is enabled

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APAR status

  • Closed as program error.

Error description

  • If ChlAuthEarlyAdopt is enabled and an error condition exists
    causing the currently active channel to be blocked, you may see
    a queue manager log entry showing-
    
    AMQ9777: Channel was blocked
    
    EXPLANATION:
    The inbound channel '<ch_name>' was blocked from address
    'localhost (<nnn.n.n.n>)' because the active values of
    the channel matched a record configured with USERSRC
    (NOACCESS). The active values of the channel were
    'CLNTUSER (<some_user>) ADDRESS(localhost)'.
    
    
    When the CLNTUSER value is expected to be <MCAUSER> rather than
    the displayed user name .
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of IBM MQ with queue managers configured with the
    "ChlauthEarlyAdopt=y" setting.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    A logic error when generating the AMQ9777 message meant that it
    was possible for this function to fail to insert the correct
    MCAUSER if using ChlauthEarlyAdopt.
    

Problem conclusion

  • The programming error has been resolved to display the correct
    MCAUSER in the AMQ9777 message.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.9
    v9.0 CD    9.0.5
    v9.0 LTS   9.0.0.4
    
    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

    IT22938

  • Reported component name

    IBM MQ BASE MP

  • Reported component ID

    5724H7251

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-10-26

  • Closed date

    2018-01-22

  • Last modified date

    2018-01-22

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

    IT22909

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

Fix information

  • Fixed component name

    IBM MQ BASE MP

  • Fixed component ID

    5724H7251

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
22 January 2018