# Worker Node Intermittently Entering Into "Ready, SchedulingDisabled" State

## Problem

One or more Kubernetes nodes are intermittently transitioning into a "Ready, SchedulingDisabled" state, where Kubelet is still heartbeating, but, workloads are no longer able to be scheduled to the node.

## Environment

* Platform9 Managed Kubernetes - All Versions
* Kubelet

## Cause

The node(s) which are impacted are likely facing resource contention/exhaustion - CPU and/or Memory – which prompts scheduling to be disabled for the node by kube-controller-manager, based on the node metrics reported by Kubelet.

## Resolution

1. Ensure that appropriate [pod limits](https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/#resource-requests-and-limits-of-pod-and-container) are set.
2. Ensure that the pod limits set are not excessive, i.e. set too low, which would cause continual pod restarts/evictions, and drive up the resource usage of the node all the same.

## Additional Information

* [Kubernetes Documentation – Managing Resources for Containers](https://kubernetes.io/docs/concepts/configuration/manage-resources-containers)


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