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Ordered Creation and Deletion

Explore how StatefulSets handle pod lifecycle management by creating and deleting pods sequentially. Understand the importance of ordered operations to avoid race conditions and data loss, and learn best practices for scaling and safely deleting StatefulSets in Kubernetes.

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A critical difference between StatefulSets and Deployments is the way they create Pods.

  • StatefulSets create one Pod at a time and wait for it to be running and ready before starting the next.

  • Deployments use a ReplicaSet controller to start all Pods at the same time, which can result in race conditions.

If we assume the previous YAML again, tkb-sts-0 will be ...