You might have to destroy HTTP sessions existing in a system when upgrading the version of an application during system operation.

With the database session failover functionality, because global session information is stored in a database, you cannot destroy an HTTP session with stopping the J2EE application or J2EE sever. Destroy an HTTP session by deleting global session information from the database.

Execute the following procedures for deleting global session information:

1. Stop the J2EE applications.
   Stop all J2EE applications on the J2EE server.
   
2. Delete global session information in the database.
   Delete global session information in the procedures for changing global session information in a database. At this time, do not change the amount of global session information and execute only the change procedure. For details on the change procedure, see 6.10.2(2) Changing the amount of global session information in a database.
   
3. Start the J2EE application.