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PM43945: JVM TUNING TO SPEED UP PROFILE CREATION

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • You might notice profile creation taking longer to complete in
    WebSphere Application Server V8 versus V7.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All IBM WebSphere Application Server V8.0   *
    *                  users                                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: Four problems are fixed with this       *
    *                      APAR.                                   *
    *                      (1) If the default profile for an       *
    *                      instance of WebSphere Application       *
    *                      Server is changed the                   *
    *                      startManager.bat still continues to     *
    *                      point to the older default profile.     *
    *                      (2) Performance enhancement to the      *
    *                      speed of profile creation.              *
    *                      (3) Error during post-installation      *
    *                      steps.                                  *
    *                      (4) FirstSteps is corrupted when the    *
    *                      locale is Japanese and the site         *
    *                      administrator chooses to name the       *
    *                      profile as a string ending with the     *
    *                      Japanese equivalent of the word         *
    *                      "language", such as                     *
    *                      AppServer01_<JapEquiv-of-language>.     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The description of the four problems fixed by this APAR are
    given. The order corresponds with each problem description
    given in the Problem Description section above.
    (1) This problem occurs when the deafult profile is changed.
    After the default profile is changed when the startManager.bat
    script is invoked it continues to point to the older default
    profile.  The correct behaviour should be to point to the
    newly set default profile.
    (2) This is a performance enhancement to to profile creation
    using the default template on Linux and Microsoft Windows
    operating systems.  The JVM has been tuned, by introduction of
    two JVM system parameters -Xshareclasses and -Xquickstart, to
    enhance the speed of profile creation.  There are no visible
    artifacts to an external user of this enhancement.
    (3) When config actions are being executed during  WebSphere
    Application Server install (or uninstall) operations of any of
    interim fix application, fixpack upgrades, or  WebSphere
    Application Server installation, and if the config action
    registry contains trailing blank lines the postinstaller will
    fail.  Since config actions are only used internally by
    WebSphere Application Server developers or interim Fix
    developers this problem will not be seen by customers.  All
    interim fixes that contain config actions will show the error
    during testing phase.  Therefore they should not be ever seen
    by customers.
    (4) This problem is specific to Japanese locales and when the
    profile name chosen by an user ends with the Japanese
    equivalent of the word "language", for example
    AppServer01_<JapEquiv-of-language>.
    Under the above two conditions when the FirstSteps is
    launched two incorrect things will be noticed.
    (i) The FirstSteps title bar becomes garbled with HTML
    characters, as opposed to default value of "WebSphere
    Application Server -- First steps -- <ProfileName>".
    (ii) The link to the Installation Verification Tool (IVT)
    link is invalid.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PM43945

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-07-19

  • Closed date

    2011-11-02

  • Last modified date

    2011-11-02

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R800 PSY

       UP

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Document Information

Modified date:
27 October 2021