IBM Support

IT23266: FDC records with probe ID AQ170075 in component aqpCheckPointQ when using invalid buffer size tuning parameters

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APAR status

  • Closed as program error.

Error description

  • Frequent failure data capture (FDC) records with Probe Id
    AQ170075 in component aqpCheckPointQ happen, if the queue
    manager has a qm.ini property entries with key
    DefaultQBufferSize and  value zero in the 'TuningParameters'
    stanza:
    
      TuningParameters:
         DefaultQBufferSize=0
    

Local fix

  • Remove the qm.ini property entries with value zero in the
    'TuningParameters' stanza.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of IBM MQ with incorrectly defined qm.ini properties.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    It is not valid to set the qm.ini buffer TuningParameter
    property DefaultPQBufferSize to zero. This invalid value was not
    correctly handled by the MQ check point processor, which
    resulting in the process generating multiple FDC records with
    ProbeID AQ170075 from component aqpCheckPointQ.
    

Problem conclusion

  • The IBM MQ code has been modified to ignore entries setting
    DefaultPQBufferSize to 0 in the qm.ini file.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.10
    v9.0 LTS   9.0.0.5
    
    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

    IT23266

  • 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

    2017-12-01

  • Closed date

    2018-04-19

  • Last modified date

    2018-04-19

  • 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:
19 April 2018