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October 24-28
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Wednesday, October 26 • 2:30pm - 3:05pm
How To Handle Node Shutdown In Kubernetes - Xing Yang & Ashutosh Kumar, VMware

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Shutting down of a node is an inevitable event and it can be graceful or non graceful in a Kubernetes cluster. A node shutdown can be graceful only if it can be detected by the Kubelet ahead of the actual shutdown. A node shutdown may not be detected by the Kubelet due to a variety of reasons causing the shutdown to be non graceful. In the talk, Xing and Ashutosh will explain the graceful shutdown concepts and its impact on the running workloads including the systemd inhibitor locks mechanism and configuration settings. In Kubernetes v1.24, alpha support for handling non graceful shutdown is introduced which enables replacement pods for StatefulSets to be created successfully on a different running node which otherwise would be stuck. The talk will explain how to use the non graceful shutdown feature using taints and the future roadmap around making the feature more automated.
Speakers
avatar for Xing Yang

Xing Yang

Tech Lead, VMware by Broadcom
Xing Yang is a Tech Lead in the Cloud Native Storage team at VMware by Broadcom. She is a co-chair of CNCF Storage TAG, a co-chair of the Kubernetes Storage SIG, a co-chair of the Data Protection WG, and a maintainer in Kubernetes CSI. Before joining VMware, Xing was the Lead Architect... Read More →
avatar for Ashutosh Kumar

Ashutosh Kumar

Senior Software Engineer, Elastic
Ashutosh is an active contributor and maintainer of the cluster api provider azure project. Currently he works as senior software engineer at Elastic and worked at VMware on cluster lifecycle team prior to this. He also had worked in a storage startup and is an emeritus control plane... Read More →

How to Handle Node Shutdown in K8s pdf
Wednesday October 26, 2022 2:30pm - 3:05pm EDT
250 ABC
  Reliability + Operational Continuity