Stopping the Upgrade Wizard on UNIX
Do not stop the Upgrade Wizard unless you are confident that an error has occurred, and the Upgrade Wizard or a utility it has called is hanging. Some SQL commands issued by the Upgrade Wizard or by its utilities can take considerable time to complete.
If you are not sure whether the Upgrade Wizard is hanging, then create a service request (SR) on My Oracle Support, or contact your Oracle sales representative for Oracle Advanced Customer Services to request assistance from Oracle’s Application Expert Services.
Stopping the Upgrade Wizard can have varying effects on the RDBMS. Before restarting the Upgrade Wizard, review the RDBMS log files. Run SQL commands as needed to resolve errors found in the RDBMS log files.
To stop the Upgrade Wizard on UNIX
If the Upgrade Wizard has started a utility in a child process, then stop the child process.
Exit the shell in which the Upgrade Wizard is running.
Locate and stop any orphaned child processes started by the Upgrade Wizard.
After the processes terminate, there might be a delay while the RDBMS executes the issued SQL commands.