Recovery ETCD Quorum Loss for VKS Cluster

Products

• VMware vSphere Kubernetes Service

Issue/Introduction

This KB article provides guidance on how to address etcd Quorum Loss within a VKS cluster.

• Prior to troubleshooting the VKS cluster, verify the health of the Supervisor using VDT for VKS
• Verify inter-node connectivity between control-plane nodes
  • Note: DFW configurations can be lost, particularly after NSX disruptions

# Example command to very inter-node connectivity
ssh vmware-system-user@<CP_NODE_IP_1>
curl -vk telnet://<CP_NODE_IP_2>:22
curl -vk telnet://<CP_NODE_IP_3>:22

Environment

vSphere Kubernetes Service

Resolution

If you suspect an etcd quorum loss in the VKS Cluster, please open a new support case and include a link to this KB article.

Additional Information

• Troubleshooting ETCD Issues in vSphere Supervisor / vSphere Kubernetes Service (VKS)
• Recovery ETCD Quorum Loss for Supervisor