IBM Support

PH67022: HIGHER CPU USAGE DUE TO TIMEOUTNOTIFICATION NODES REPEATED MQGET CALLS

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APAR status

  • Closed as program error.

Error description

  • The TimeoutNotification node, when running in 'controlled'
    operation mode, issues MQGET calls every 500 milliseconds, which
    may result in increased CPU usage.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of IBM App Connect Enterprise V12.0 and V13.0 and IBM
    Integration Bus v10.1 for z/OS using the TimeoutNotification
    nodes
    
    
    Platforms affected:
    ZOS, LinuxX64, AIX, WinX64, LinuxPPCLE64, LinuxZ64
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    The TimeoutNotification node, when running in 'controlled'
    operation mode, issues MQGET calls every 500 milliseconds, which
    may result in increased CPU usage.
    

Problem conclusion

  • The product no longer causes high CPU usage due to flows using
    the TimeoutNotification node.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version   Maintenance Level
    v10.1      10.1.0.7
    v12.0      12.0.12.21
    v13.0      13.0.6.0
    
    The latest available maintenance can be obtained from:
    http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
    
    If the maintenance level is not yet available,information on
    its planned availability can be found on:
    http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH67022

  • Reported component name

    INT BUS FOR Z/O

  • Reported component ID

    5655AB110

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-06-19

  • Closed date

    2025-11-28

  • Last modified date

    2025-11-28

  • 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

    INT BUS FOR Z/O

  • Fixed component ID

    5655AB110

Applicable component levels

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSNQH8","label":"IBM Integration Bus for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A10","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

Document Information

Modified date:
30 November 2025