PM12076: THE EXTREME SCALE HTTP SESSION CODE GETTING INTO A BAD STATE.

PM12076; 7.0: the eXtreme Scale http session code getting into a bad state

APAR status

• Closed as program error.

Error description

• When an application has certain kinds of problems (for example,
  compiled with the wrong JDK version), and the server hosting the
  application is not restarted, the eXtreme Scale http session
  code can get into a bad state. The application on subsequent
  requests could see IllegalStateExceptions,
  LockTimeoutExceptions, and NullPointerExeptions.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of WebSphere eXtreme Scale        *
  *                  Version 7.0 who are using the HTTP session  *
  *                  replication support.                        *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: When restarting a Web application,      *
  *                      the IllegalStateException or            *
  *                      LockTimeoutException exceptions         *
  *                      result.                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The eXtreme scale session filter code was not handling
  application exceptions properly. Any unexpected exceptions
  that resulted from application code caused the session filter
  to be in an unrecoverable state. In this scenario, the
  following exceptions or errors could be logged:
  IllegalStateException, LockTimeoutException, or an error that
  says that the ObjectGrid was previously destroyed.
  

Problem conclusion

• An interim fix will be made available for this APAR.  A future
  cumulative fix will correct the problem for WebSphere eXtreme
  Scale Version 6.1.0.5
  

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

  XD EXTREME SCAL

• Fixed component ID

  5724J3402

Applicable component levels

• R700 PSY

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