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Watson Studio Local - Why are the nodes in cluster showing up with a different age.

Troubleshooting


Problem

Since the cluster was installed you have always seen the same age for all the nodes of the cluster when you ran "kubectl get nodes". But recently you are seeing different values for the age. You are not sure why these values have changed and if could potentially impact the performance of the cluster? The node in question has been rebooted recently but an OS reboot normally doesn't change the age of a kubernetes node.

Resolving The Problem

The age of a cluster node is really based on creation, not modification. Maybe a new compute node has been added to the cluster which could explain the age difference?
In the end it doesn’t really matter what age it shows, it's just what the apiserver picks up… maybe a name was changed, changed back… hard to say… as long as the nodes you are seeing are the ones you expect to see. 
So the difference is really insignificant and the online kubernetes documentation could provide more information.

Document Location

Worldwide

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Document Information

Modified date:
20 April 2021

UID

ibm16445387