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PI63972: PERFORMANCE ISSUE WHEN RUNNING JSP.

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APAR status

  • Closed as program error.

Error description

  • Performance issue caused by lock contention when creating tag
    handlers.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server users of   *
    *                  JavaServer Pages (JSP) custom tags.         *
    ****************************************************************
    * PROBLEM DESCRIPTION: Performance issue when running an       *
    *                      application with multiple JSP custom    *
    *                      tags.                                   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    In Java EE7 tag handlers, which implement custom tags, can use
    CDI injection. Lock contention became an issue when
    determining injection points for these objects during object
    creation.
    

Problem conclusion

  • The locking mechanism used when determinig injection targets
    was made more granular to reduce lock contention.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 9.0.0.1.  Please refer to the Recommended Updates
    page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI63972

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-06-10

  • Closed date

    2016-09-15

  • Last modified date

    2016-09-15

  • 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

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
15 October 2021