PM71704: IMPROVED HETEROGENEOUS BATCH SUPPORT FOR JPA

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Heterogeneous statement batch support has been provided via the
    pureQuery integration with the WebSphere JPA solution.
    Unfortunately, the performance of this heterogeneous batch
    support was limited due to the Java Reflection costs required
    for the pureQuery integration.  This change removes these
    Reflections costs and provides a more direct integration
    between JPA and the heterogeneous statement batching facility.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of IBM WebSphere Application Server   *
    *                  V8.5.0 who make use of Java Persistence     *
    *                  API (JPA) and have the IBM Optim pureQuery  *
    *                  Runtime installed, and are using DB2.       *
    ****************************************************************
    * PROBLEM DESCRIPTION: Optimize trips to the database when     *
    *                      flushing data.                          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A feature was added that will batch heterogeneous statements
    to the database when flushing a transaction.
    

Problem conclusion

  • A feature was added to JPA that can minimize trips to the
    database when flushing heterogeneous statements within the
    same transaction. Usage of the
    com.ibm.ws.persistence.jdbc.kernel.HeteroConstraintUpdateManager
     is only available to customers that have the IBM Optim
    pureQuery Runtime installed, and are using DB2.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 8.5.0.2.  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

    PM71704

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-08-28

  • Closed date

    2013-03-25

  • Last modified date

    2013-03-25

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

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

    PM80436

Fix information

  • Fixed component name

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

  • R850 PSY

       UP



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Document information


More support for:

WebSphere Application Server
General

Software version:

850

Reference #:

PM71704

Modified date:

2013-03-25

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