IBM Support

PI79951: After updating an application module without restarting the application server; IM enabled web servers return 503 errors

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When Intelligent Management is enabled for the IHS plugin it
    should also set a custom property for IMenabled with a value
    of true. Without this setting all java processes may not
    fully
    participate in sharing topology which may occasionally cause
    problems for routing requests to the proper destination.
    

Local fix

  • Set the cell custom property IM.enabled with a value of true.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server WAS ND edition- Virtual              *
    *                  Enterprise/IM Component with Intelligent    *
    *                  Management enabled web servers.             *
    ****************************************************************
    * PROBLEM DESCRIPTION: After updating an application module    *
    *                      without restarting the application      *
    *                      server; IM enabled web servers will     *
    *                      return 503s.                            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    After updating an application module without restarting the
    hosting application server; Intelligent Management (IM) enabled
    web servers will return 503 status codes for requests targeted
    to that module.
    

Problem conclusion

  • The Intelligent Management On Demand Configuration (ODC)
    component has been updated to ensure that applications modules
    can be updated without the need to restart the hosting
    application servers.
    
    The fix for this APAR is currently targeted for inclusion in fix
    packs 8.5.5.12 and 9.0.0.4.  Please refer to the Recommended
    Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

  • Define a cell custom property named IM.enabled with a value of
    true or after updating an application module restart all
    application servers hosting the application that was updated.
    

Comments

APAR Information

  • APAR number

    PI79951

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-04-13

  • Closed date

    2017-05-08

  • Last modified date

    2017-05-08

  • 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

  • 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:
19 October 2021