Cluster Health Score

The health score starts at 100. Penalties reduce the score. There are three penalty types:

SevereErrorPenalty = 50
ErrorPenalty       = 15
WarningPenalty     = 3

WarningPenalty is applied when:

• Single Cluster (Master exists on Cluster - for kops based kubernetes deployments on AWS)

• Single Region

• Predictive Disk Growth crosses a 90% threshold

ErrorPenalty is applied:

• Any Nodes in the Cluster are Not Ready

• Any Nodes are under MemoryPressure

SevereErrorPenalty is applied:

• Memory Usage exceeds 90% of Available Memory on the Cluster

Alert

The Cluster Health alert is based on a threshold of change. For example, an alert on 14 would alert anytime an Error penalty was applied.