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IT17897: Memory leak when inquire queue status type(handle) is issued

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APAR status

  • Closed as program error.

Error description

  • A memory leak may occur in IBM MQ when the administrative
    command
    DISPLAY QSTATUS() TYPE(HANDLE) is issued.  If this issue is not
    corrected
    then it may lead to a resource problem on the host machine.
    

Local fix

  • Avoid frequently running the inquire queue status type(handle)
    administrative command.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users who frequently run the inquire queue status type(handle)
    administrative command may be affected by this issue.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    There was a timing window in the inquire queue status code where
    a leak could occur if an application closed a queue while the
    command was running.
    

Problem conclusion

  • The code was corrected so that memory that is allocated when
    issuing the inquire queue status type(handle) command is
    correctly freed.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v7.5       7.5.0.8
    v8.0       8.0.0.7
    v9.0 CD    9.0.2
    v9.0 LTS   9.0.0.1
    
    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

    IT17897

  • Reported component name

    WMQ BASE MULTIP

  • Reported component ID

    5724H7241

  • Reported release

    750

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-11-16

  • Closed date

    2017-01-17

  • Last modified date

    2017-06-01

  • 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

    5724H7241

Applicable component levels

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCPQ63","label":"APAR \/ Maintenance"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
01 June 2017