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PI28219: 503s returned by the Intelligenent Management enabled WebSphere Plug-in when a series of server starts/stops are

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APAR status

  • Closed as program error.

Error description

  • 503s returned by the Intelligenent Management enabled
    WebSphere Plug-in when servers are restarted one by one,
    repeatedly, in a cluster of two servers
    

Local fix

  • Restart the web server.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server using Intelligent Management (IM)    *
    *                  enabled WebSphere Plug-in                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: 503s are returned by the Intelligenent  *
    *                      Management enabled WebSphere Plug-in    *
    *                      when servers are restarted repeatedly   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    While sending load, there can be a window of time when the IM
    enabled WebSphere Plug-in thinks that the server that is being
    stopped is started and tries to connect to it, but will get
    connect failure. When this happens, the IM enabled WebSphere
    Plug-in will not try this server for a certain time interval.
    Because this time interval was not being reset after the server
    is restarted, 503s were returned if this was only server
    started.
    

Problem conclusion

  • Code was changed to reset the next retry time and retry
    interval after a server is restarted.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 8.5.5.5.  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

    PI28219

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-10-22

  • Closed date

    2015-01-12

  • Last modified date

    2015-04-07

  • 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

  • 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":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 April 2022