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PI35473: THERE IS A SYNCHRONIZATION ISSUE WITH QUIESCE AND THE SERVER UP AND DOWN COMMANDS.

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APAR status

  • Closed as program error.

Error description

  • THERE IS A SYNCHRONIZATION ISSUE WITH QUIESCE AND THE SERVER UP
    AND DOWN COMMANDS.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Load       *
    *                  Balancer for ipv4 and ipv6 users            *
    ****************************************************************
    * PROBLEM DESCRIPTION: Incorrect server status can occur       *
    *                      with simulataneous quiesce and server   *
    *                      up/down commands                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The Load Balancer quiesce, unquiesce, server up and server
    down command may experience timing overlap such that the
    server weight is incorrect.
    

Problem conclusion

  • Added java synchronization around the functions to prevent
    overlappying operations.
    
    Fix included in :
       7.0.0.40
       8.0.0.11
       8.5.5.6
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI35473

  • Reported component name

    WEBS LOAD BALAN

  • Reported component ID

    5724H8811

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-02-20

  • Closed date

    2015-03-24

  • Last modified date

    2015-03-24

  • 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 LOAD BALAN

  • Fixed component ID

    5724H8811

Applicable component levels

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"800","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 April 2022