Migrating Kyvos Cluster Nodes from CentOS to RHEL on GCP

1. Stop the machines — In the Google Cloud console, stop the Analytical Server and Query Engine VMs.

2. Open the machine settings — After a machine stops, click it to open its details screen, then click Edit.

3. Detach the old boot disk — Scroll down to the boot disk section and select Detach Boot Disk. The option to configure a new boot disk will now appear.

4. Configure the new boot disk — Click Configure Boot Disk. In the side panel that opens:

   • Select RHEL as the operating system

   • Name the new boot disk

   • Set the remaining options as shown below
     
     

     Open

     

      

5. Confirm the boot disk — Click Select. Your boot disk settings should now match the example below.
   
   

   Open

   

    

6. Update the startup script — Scroll to the startup script section, remove the existing content, and replace it with the new script: Download bi_qe.sh

7. Save and start — Save your changes and start the machine.

8. Repeat steps 2–7 for both the Analytical Server and the Query Engine.

9. Verify — In Kyvos Manager, confirm that the Analytical Server and Query Engine are up and running.

1. Stop the KM machine in the Google Cloud console.

2. Replace the boot disk — Detach the old boot disk and attach a new one of the same size, following steps 2–5 above.

3. Update metadata — Change the Rerun metadata value from false to true.

4. Update the startup script — Remove the existing script content and replace it with the new script: Download km.sh

5. Verify — Open the Kyvos Manager portal and confirm that everything is up and running.

To confirm that a node has successfully migrated from CentOS to RHEL 8, run the following command on each Kyvos component node:

bash

Expected output: