PM49491: PLUG-IN DOES NOT MARK SERVER BACK UP AFTER RECEIVING A 503 RESPONSE FROM THE APPSERVER

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When the server comes back up, the plug-in receives a 503
  response; but 503's are a special case: when the plug-in gets a
  503, it will retry the request to another server but should not
  mark the server down. As such, it doesn't change the server
  state. In this case the server was down so it remains down; but
  there is also a bit indicating that the server is being retried
  to prevent a flood of requests from going to a server when it
  just starts up. This bit is never reset.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: IBM WebSphere Application Server V6.1        *
  *                 webserver plugin users                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: Plugin may not mark a server up when    *
  *                      server responds with a 503 after        *
  *                      being down.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a server comes back online and responds with a 503
  (service unavailable) plugin may not mark the server up and if
  it fails to mark the server up, no further attempts to use
  this server will be made.
  

Problem conclusion

• Plugin is designed to retry the request to other available
  servers when a 503 response is received. If the request was
  retried, the server responding with the 503 would not be
  marked up.
  
  APAR PM49491 is currently targeted for inclusion in Service
  Level (Fix Pack) 6.1.0.41 of WebSphere Application Server V6.1.
  
  Please refer to URL:
  //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack availability.
  

Temporary fix

Comments

APAR Information

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

  PM37373

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

Modules/Macros

• BBGUBINF BBOUBINF
  

Fix information

• Fixed component name

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R610 PSY UK73054

     UP11/11/03 P F111

Fix is available

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