PI47535: CLUSTER BASED WILDCARD ROUTING RULES FAIL TO ROUTE CORRECTLY AFTER SERVER RESTARTS.

8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• The customer has a star topology, with multiple point cells.
  ODR routes incorrectly if application servers are restarted.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of WebSphere Virtual Enterprise   *
  *                  component of Websphere Application Server   *
  *                  Network Deployment edition who have a star  *
  *                  topology with a center cell and one or      *
  *                  more point cells.                           *
  ****************************************************************
  * PROBLEM DESCRIPTION: When an application server which is a   *
  *                      member of a cluster in a point cell     *
  *                      is restarted, On Demand Router does     *
  *                      not route to applications deployed in   *
  *                      the restarted server properly.          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When an application server in a point cell is restarted, On
  Demand Router(ODR) adds other servers in addition to the
  restarted server as targets for applications deployed on the
  restarted server even if the other servers don't host the
  applications. And now, when a request meant to be handled by
  the application in the restarted server is sent, ODR can route
  it to any server irrespective of whether the server hosts the
  application or not. This is due to a flaw in our code.
  

Problem conclusion

• We have fixed the code to add the right servers as targets.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.9.  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 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