Needing to scale down a cluster isn't a terribly common task. But sometimes a cluster uses more resources than it needs, due to application retirement or migration. This is especially true in the case of deploying into a public cloud, where extra compute comes with a price tag. In this case, being fiscally responsible with your company's money often translates into trimming down your cluster's resources for efficiency.
Scaling down
Removing nodes from a cluster
The most obvious way to trim resources is to remove nodes from the cluster. Sometimes, nodes may need to be removed after crashing on their own. In a cloud environment built with efficient DevOps processes, it is often much faster to re-provision a troublesome...
