Step H: Upgrade the Worker Nodes - AWS Elemental Conductor File

This is version 2.16 of the AWS Elemental Conductor File documentation. This is the latest version. For prior versions, see the Archive section of AWS Elemental Conductor File and AWS Elemental Server Documentation.

Step H: Upgrade the Worker Nodes

If you are running a cluster without backup worker nodes, upgrade your active worker nodes during a maintenance period. All activity on the node stops stop during an upgrade.

To upgrade the worker nodes

  1. From the Linux prompt, log in with the elemental user credentials.

  2. Run the installer as follows. Use the actual filename of the .run file you downloaded, rather than the example below.

    For GPU and CPU versions of the software.

    [elemental@hostname ~]$ sudo ./ -xeula --start -z

    For CPU-only versions of the software.

    [elemental@hostname ~]$ sudo ./ -t -n -xeula --start -z

    For more details about upgrading worker nodes, see AWS Elemental Server Upgrade Guide.

  3. Answer the prompts as follows:

    Prompt Response
    Remove this node from the Conductor system? [N] No
    What is the hostname or IP address of the cluster management node? Enter the IP address of the management interface (typically eth0 or bond 0) on the primary Conductor node.
    Trust this public key? [Y] Yes
  4. If you had previously copied a script to a safe location, now copy it back to its location in /opt/elemental_se.

To reboot the worker nodes

  1. As soon as the installation is complete, restart the node.

    [elemental@hostname ~]$ sudo reboot

    On the Conductor web interface, a message appears to indicate that the node is deactivated (offline).

  2. When the node has rebooted, the Conductor web interface displays a message to indicate the node is back online.

  3. Refresh your web browser on the AWS Elemental Server node in order to load the updated web interface.

  4. Repeat these steps on each worker node.