IBM Support

IT17471: MQRC_CHANNEL_AUTO_DEF_OK EVENT is not generated

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APAR status

  • Closed as program error.

Error description

  • Enable CHAD and CHADEV on queue manager, but
    MQRC_CHANNEL_AUTO_DEF_OK event is not generated.
    
    Test steps:
    1. Create Sender queue manager QMSDR and Receiver queue manager
    QMRCVR
    2. On QMRCVR:
       alter qmgr CHAD(ENABLED) CHADEV(ENABLED)
       define a listener
    3. On QMSDR:
       define SDR channel to QMRCVR
       start SDR channel
    4. Check channel status on both QMSDR and QMRCVR, the channel is
    running, but MQRC_CHANNEL_AUTO_DEF_OK event is not generated
    according
    to amqsevt sample program, which is used to format the
    instrumentation events.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of MQ V8 and later with channel event monitoring enabled.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    The MQRC_CHANNEL_AUTO_DEF_OK event message was not correctly
    generated during the initialization of an auto-receiver channel.
    

Problem conclusion

  • The MQ 7.0.0.x product generated the MQRC_CHANNEL_AUTO_DEF_OK
    event before the auto-defined receiver channel had completed the
    adoption of the appropriate security context.
    
    This was changed in MQ 7.0.1.x of the product however the
    MQRC_CHANNEL_AUTO_DEF_OK event was not produced.
    
    The channel initialization code has been changed to allow the
    generation of the MQRC_CHANNEL_AUTO_DEF_OK event in the same way
    as the MQ 7.0.0.x product.
    
    The following properties can be added to the Channels stanza of
    the qm.ini file
    
    Channels:
       ChadEarlyCreate=[Yes | No]
       ChadEarlyStartEvent=[Yes | No]
    
    The default settings are
       ChadEarlyCreate=No
       ChadEarlyStartEvent=No
    
    Only customers who have a dependency on the MQ 7.0.0.x behavior
    of auto-defined channel events should consider implementing this
    property.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.8
    v9.0 CD    9.0.4
    v9.0 LTS   9.0.0.2
    
    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

    IT17471

  • 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

    2016-10-13

  • Closed date

    2017-08-10

  • Last modified date

    2017-08-11

  • 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



Document information

More support for: WebSphere MQ

Software version: 8.0.0.0

Reference #: IT17471

Modified date: 11 August 2017


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