Lighthouse Availability and Stability

Lighthouse must be online and fully booted (preferably for at least a few minutes) before the upgrade starts. It is good practice to have Lighthouse online for a few hours before a node upgrade. This ensures that all the nodes that will be upgraded have re-established their connection and allows time to troubleshoot any issues.

Do not attempt to change major Lighthouse settings, especially those involving the network or timezone, when an upgrade is underway or imminent.

Do not conduct multiple major operations on nodes simultaneously, for example, do not apply templates to the node while it is being upgraded. Do not login to a node and change settings moments before an upgrade occurs.

Note:If Lighthouse is offline when a scheduled upgrade is due to start, the upgrade will not be run.