Rolling back the upgrade tool version

Refer to the following steps to roll back the upgrade tool version:

1. Log in to any node in the corresponding cluster using the root account.

2. Upload the upgrade ISO file containing the upgrade tool version you want to roll back to, or the current cluster version ISO file, to the /home/arcfra/ path on this node.

3. Taking an uploaded ISO file named test.iso as an example, execute the following command to perform the rollback operation of the upgrade tool:

   nohup cluster-upgrade downgrade_tool --iso_path /home/arcfra/test.iso &

4. During the script execution, you can view the real-time log of the cluster upgrade tool rollback operation using the following command:

   tail -f nohup.out

   • If the upgrade tool rollback is successful, the log will output downgrade tool success.
   • If the upgrade tool rollback fails, locate the cause of failure based on the log information and resolve the issue, then re-execute the rollback operation.