Chapter 21. Reverting Patches

You can roll back patches to revert the Red Hat Data Grid server to the previously installed version.

Important

You should roll back patches only after applying a patch that results in unexpected behavior or undesirable effects. Rolling back patches is not intended for general uninstall functionality.

To revert a Data Grid patch, do the following:

  1. Stop the server instance that you want to roll back if it is running.

    Either use the Administration Console to stop the server or enter Ctrl-C in the terminal where Data Grid is running.

  2. Open a terminal and change to the RHDG_HOME directory. 

    $ cd RHDG_HOME

  3. Find the ID of the patch that you want to roll back. 

    $ bin/cli.sh "patch history"

  4. Roll back the server version as follows: 

    $ bin/cli.sh "patch rollback --patch-id=PATCH_ID --reset-configuration=false"
    Warning

    Use caution when specifying the reset-configuration option.

    --reset-configuration=false does not revert the server configuration. Because applying patches can change the server configuration, it is possible that the server does not restart if you roll back the patch but do not roll back the configuration. In this case, you should verify the server configuration and manually adjust it as needed before starting the server.

    --reset-configuration=true reverts the server configuration to the pre-patch state. Any changes to the server configuration after the patch was applied are removed.

    If conflicts exist when you attempt to roll back the patch, the operation fails and warnings occur. Enter patch --help to list available arguments that you can use to resolve the conflicts.

  5. Start the server with either the standalone.sh or domain.sh script.