PM99412: Unecessary CPU consumption in forked process on zOS

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You can track all active APARs for this component.

APAR status

  • Closed as unreproducible.

Error description

  • On zOS, customer may notice high CPU usage by IIM searching for
    updates if 'Search for Installation Manager updates' and 'Search
    service repositories during installation and update'  are
    enabled.
    
    The workaround is to turn off both  'Search for Installation
    Manager updates' and 'Search service repositories during
    installation and update' in IIM preferences.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    High CPU usage in IIM on zOS for a total of 8 minutes delay
    in searching for updates, and intermittently seeing times
    when a forked IBM Installation Manager process is staying
    active under the name of the issuing user and draw GCP CPU -
    looping.
    

Problem conclusion

  • In reviewing the log files we could see that the IBM
    Installation Manager was waiting for user input in console
    mode and this accounted for the perceived delay.  We could
    not reproduce the forked process problem.  We are closing
    this issue as 'unable to reproduce'.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM99412

  • Reported component name

    IBM INSTALL MGR

  • Reported component ID

    RATLIMG00

  • Reported release

    152

  • Status

    CLOSED UR5

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-10-17

  • Closed date

    2013-12-13

  • Last modified date

    2013-12-13

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

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

Fix information

Applicable component levels

  • R152 PSN

       UP



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Document information


More support for:

IBM Installation Manager

Software version:

1.5.2

Reference #:

PM99412

Modified date:

2013-12-13

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