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IC77998: ON HPUX PLATFORM, 100% CPU UTILIZATION MIGHT BE OBSERVED USING APPLICATION SNAPSHOTS

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The problem only happen on system with numerous connections
    (around 8000 connections).  Latches might be held for a long
    time due to calls to pstat_getlwp giving an impression of hang
    with high CPU usage.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Instances on HPUX platforms having high numbers of           *
    * concurrent connections (8000                                 *
    * or more)                                                     *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * same as error description                                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * upgrade to version 9.7 Fix Pack 5                            *
    ****************************************************************
    

Problem conclusion

  • First fixed in version 9.7 Fix Pack 5
    Use DB2_SYSTEM_MONITOR_SETTINGS=PUSH_CPUTIME:ON registry setting
    to enable this fix
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC77998

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-08-09

  • Closed date

    2011-12-23

  • Last modified date

    2011-12-23

  • 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

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSY

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC77998

Modified date: 23 December 2011