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IV64262: INCREASED CPU USAGE FOR MULTISITE_CONNECTION_MONITOR APPLIES TO AIX 7100-02

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • In 36010,082,000, customer experienced increased cpu
    usage
    for the multisite_connection_monitor process.  The
    customer's cluster was a single site, so much of the
    processing of multisite_connection_monitor() could be
    avoided (as well as this issue) by checking for this
    first:
    
    ->diff
    ./src/bos/kernext/cluster/net/kcluster_multisite.c.orig
    ./src/bos/kern>
    18c18
    < static char sccsid[] = "@(#)54 1.6
    src/bos/kernext/cluster/net/kcluster_multisite.c,
    sysxcluster, bos61X, x2012_35A9 8/22/12 03:01:26";
    ---
    > static char sccsid[] = "@(#)54 1.6-new
    src/bos/kernext/cluster/net/kcluster_multisite.c,
    sysxcluster, bos61X, x2012_35A9 8/22/12 03:01:26";
    219a220,221
    >         /* TEMP removes functionality */
    >         if(local_stand_alone->kcl_num_sites > 1) {
    290a293
    >       }
    

Local fix

Problem summary

  • Increased cpu usage for multisite_connection_monitor
    

Problem conclusion

  • Added check to eliminate much of the processing in
    multisite_connection_monitor() if single-site cluster.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV61021
    7100-02 - use AIX APAR IV64262
    

APAR Information

  • APAR number

    IV64262

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-08-29

  • Closed date

    2014-08-29

  • Last modified date

    2015-01-21

  • APAR is sysrouted FROM one or more of the following:

    IV61021

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865328

       UP15/01/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV64262

Modified date: 21 January 2015