IBM Support

IT28748: dmpmqcfg fails to connect in client mode when using non-multiplexed connection

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

 

APAR status

  • Closed as program error.

Error description

  • The dmpmqcfg command connects to a queue manager and the error
    reported to stderr is;
    
     AMQ8921E: MQCB call failed with reason code 2298.
    
    Using the mqrc tool, the 2298 return code is defined as
    "Function not supported";
    
     2298  0x000008fa  MQRC_FUNCTION_NOT_SUPPORTED
    
    The dmpmqcfg command also returns a non zero return code (71)
    indicating an unexpected error occurred and the command failed.
    In this type of failure no data is written to stdout, this is
    expected behaviour.
    
    dmpmqcfg should fallback to use MQGET if asynchronous consume is
    not available, for example on a non-multiplexed connection.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users using dmpmqcfg to connect to a queue manager using a
    client connection (-c) are potentially affected, if the client
    connection does not permit asynchronous consume.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    dmpmqcfg uses MQ's asynchronous consume feature to retrieve PCF
    responses from the command server. When dmpmqcfg is connected
    using client bindings however, it may not be possible to use
    asynchronous consume. This is true for example when SHARECNV(0)
    is negotiated.
    

Problem conclusion

  • Asynchronous consume will continue to be used when available,
    however dmpmqcfg will fallback to use MQGET if asynchronous
    consume is not available.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.13
    v9.0 LTS   9.0.0.8
    v9.1 CD    9.1.3
    v9.1 LTS   9.1.0.4
    
    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

    IT28748

  • 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

    2019-04-17

  • Closed date

    2019-06-12

  • Last modified date

    2019-06-12

  • 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

    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:
12 June 2019