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Step H: Upgrade the failed active node - AWS Elemental Conductor Live

Step H: Upgrade the failed active node

Now upgrade the active worker node that you just failed over. Use the same upgrade process that you used to upgrade the backup worker nodes. Perform these steps from the now-failed node.

To reduce impact on your worker nodes, upgrade one active node at a time and complete the steps through Step K: Re-designate the backup worker node before moving on to the next node.

Perform these steps on each node. To limit your downtime, upgrade all of the backup nodes before upgrading the active nodes.

There are two procedures for upgrading. Choose the procedure that applies to your deployment.

To upgrade the failed worker node without changing the deployment

Follow this procedure if you don't need to change anything about the deployment.

  1. From the Linux command line, log in to the worker node. Use the elemental user credentials.

  2. Run the installer. Make sure to include the -c option to clear the database. Use the appropriate command:

    • For GPU and CPU versions of the software:

      [elemental@hostname ~]$ sudo sh ./elemental_production_live_2.25.5.12345.run -c --skip-all --start -xeula

    • For CPU-only versions of the software:

      [elemental@hostname ~]$ sudo sh ./elemental_production_live_cpu_2.25.5.12345.run -c --skip-all --start -xeula

  3. If you copied a script to a safe location (as described in Move custom files), copy it back to its location in /opt/elemental_se/scripts.

  4. When the upgrade is complete, restart the node with the following command:

    [elemental@hostname ~] sudo reboot

  5. When the upgrade on this node is complete, fail-back the channels that were on this node, as described in the next step.

To upgrade the failed worker node and change its deployment

Follow this procedure if you want to change something in the deployment. Specifically, follow this procedure if you want to enable OCR conversion for the first time. This feature is available in AWS Elemental Live version 2.22.0 and later. (For information about this feature, see Support for OCR Conversion in the AWS Elemental Live User Guide.)

  1. Follow the appropriate procedure in the AWS Elemental Live Installation Guide:

  2. If you copied a script to a safe location (as described in Move custom files), copy it back to its location in /opt/elemental_se/scripts.

  3. When the upgrade is complete, restart the node with the following command:

    [elemental@hostname ~] sudo reboot

  4. When the upgrade on this node is complete, fail-back the channels that were on this node, as described in the next step.