A Troubleshooting the Infrastructure Upgrade

If the Infrastructure upgrade fails, troubleshoot the cause using the log file and guidelines in this topic.


As with most Fusion Middleware errors, errors that are detected in the Examine phase can be fixed and the Upgrade Assistant can continue to run. Errors that occur during the Upgrade phase, however, must be corrected using the restored backup files and the upgrade process must be started from the beginning. Do not attempt to rerun an upgrade that fails during the Upgrade phase. The environment should be considered unstable and will need to be restored to its pre-upgrade state.

See General Troubleshooting Guidelines in Upgrading with the Upgrade Assistant.

Authentication Failure — JSchException: Auth Fail

When Running the Upgrade Assistant to upgrade Weblogic Component Configurations, if you provide incorrect login credentials for a UMS server, you an exception in the Upgrade Assistant log files as shown in this topic.

[upgrade.UCSUMS.UCSUMS_CONFIGURATION_PLUGIN] [tid: 110] [ecid:
88ab893d-a523-4a83-b5a6-f7b1cf8cb029-00000001,0] [[
com.jcraft.jsch.JSchException: Auth fail

The resolution to this error depends on when the error occurred:

If this error occurred during the Examine phase (before Upgrade phase): Verify that the username and password you entered are valid for all managed servers and directories and that the username provided has privileges for ssh. Once you have corrected the error, retry the connection.

If this error occurred during the Upgrade phase, your upgrade operation did not succeed and you need to restore your files from backup and start the upgrade again. Make sure that you use the correct server login credentials when prompted.


Errors that occur during the Upgrade phase are non-reentrant, meaning you cannot simply correct the error and continue through the upgrade. Once you click Upgrade, if an error occurs then the environment must be restored from backup before you start the upgrade process again.

Error while Copying User Messaging Service (UMS) Configuration Files

If the Upgrade Assistant fails to automatically copy the UMS configuration files, you must stop the upgrade and manually copy the configuration files before attempting to upgrade UMS. This process is required only if the Upgrade Assistant fails to automatically copy the configuration files or if you prefer to copy the configuration files manually.

This section describes the location of the UMS configuration files that are copied from the remote managed server nodes to the Admin server while upgrading UMS from 11g to 12c. Note that the Upgrade Assistant can automatically copy the remote configuration files, if all necessary prerequisites are met and the required login information is provided. For more information about using Upgrade Assistant to copy configuration files, see Identifying Configurations that can be Upgraded with the Upgrade Assistant in Upgrading with the Upgrade Assistant.

However, if the Upgrade Assistant cannot locate your files, then you must copy the configuration files from the remote managed server to the same location on the Administration server running the upgrade. The configuration files that must be copied include the UMS server configuration files (appconfig.xml), driver configuration files (driverconfig.xml), and the user preferences files (businessterms.xml). These files are located in the /applications folder for each managed server, as shown in Table A-1.

After manually copying the configuration files from the managed server to the Administration server, you must start the Upgrade Assistant again.

Table A-1 Configuration File locations

Configuration file Location

UMS Server (appconfig.xml)


Driver Configuration (driverconfig.xml)


User Preferences (businessterms.xml)



If there are multiple drivers deployed in a domain, then you must ensure that configuration files for all drivers are copied. This can be achieved by replacing the DRIVER_NAME with as many drivers deployed in that domain.