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IZ08783: Probe AD028004 FDC from adiOpenFile (Rc=24 from open) in amqzxma0, when migrating to V6. This is a file descriptor leak.

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APAR status

  • Closed as program error.

Error description

  • Probe AD028004 FDC from adiOpenFile (Rc=24) in amqzxma0
    process, when migrating to V6. The FDC shows
    zxcRestoreChannelStatus on the Function Stack. The process may
    have difficulty reporting its name, and also reporting
    messages, because of the lack of available file descriptors.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users migrating (to V6) a queue manager with a large amount of
    channel status information on the SYSTEM.CHANNEL.SYNC queue.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    The channel definition file was being repeatedly opened (only
    when the queue manager detects that migration is required).
    

Problem conclusion

  • Corrected the channel definition file opening/closing logic
    during migration.
    
    A workaround would be to temporarily increase the max number of
    file descriptors so that the migration can complete.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v6.0
    Platform           Fix Pack 6.0.2.4
    --------           --------------------
    Windows            U200290
    AIX                U814256
    HP-UX (PA-RISC)    U814152
    HP-UX (Itanium)    U814342
    Solaris (SPARC)    U814337
    Solaris (x86-64)   U814343
    iSeries            SI31813
    Linux (x86)        U814336
    Linux (x86-64)     U814341
    Linux (zSeries)    U814338
    Linux (Power)      U814339
    Linux (s390x)      U814340
    
    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

    IZ08783

  • Reported component name

    WMQ LIN X86 V6

  • Reported component ID

    5724H7204

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2007-11-14

  • Closed date

    2007-11-23

  • Last modified date

    2008-05-30

  • 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 LIN X86 V6

  • Fixed component ID

    5724H7204

Applicable component levels

  • R600 PSY

       UP

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Document Information

Modified date:
30 May 2008