How To Resolve Pods Stuck In Pending State On Kubernetes Cluster?

[system]

What could cause all the pods stuck in pending state?

If all the pods are found stuck in a "pending" state, the first step is to check the node state. To do this, run the following command:

• kubectl get nodes

If the node is in a "no-schedule" state, it means that Kubernetes is not scheduling any new pods on that node. Then uncordon the node to allow new pods to be scheduled on it. To do this, run the following command:

• kubectl uncordon <node name>

This command will change the node state to "scheduleable," and Kubernetes will start scheduling new pods on it. Once the node is back to normal, the pending pods should start running automatically.

It is important to note that if the node is still experiencing issues, it may be necessary to investigate and resolve those issues before new pods can be scheduled on the node.

Conclusion:

If the Kubernetes cluster is experiencing issues with pending pods, it is important to check the node state and determine if it is in a "no-schedule" state. If it is, uncordon the node to allow new pods to be scheduled on it. Once the node is back to normal, the pending pods should start running automatically. If the node is still experiencing issues, further investigation may be necessary.