kubernetes-statefulset

Kubernetes – pod has unbound immediate PersistentVolumeClaims

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PersistentVolumeClaims will remain unbound indefinitely if a matching PersistentVolume does not exist. The PersistentVolume is matched with accessModes and capacity. In this case capacity the PV is 10Gi whereas PVC has capacity of 3Gi. The capacity in the PV needs to same as in the claim i.e 3Gi to fix the unbound immediate PersistentVolumeClaims issue.

Why StatefulSets? Can’t a stateless Pod use persistent volumes?

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Yes, a regular pod can use a persistent volume. However, sometimes you have multiple pods that logically form a “group”. Examples of this would be database replicas, ZooKeeper hosts, Kafka nodes, etc. In all of these cases there’s a bunch of servers and they work together and talk to each other. What’s special about them … Read more

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