https://www.chenshaowen.com/en/tags/etcd/Recent content in Etcd on Shaowen Chen's WebsiteHugo -- gohugo.ioen©2016 - {year}, All Rights Reserved.Tue, 17 Jan 2023 00:00:00 +0000weeklyhttps://www.chenshaowen.com/en/blog/how-to-repair-k8s-master-after-reinstalling-os.htmlTue, 17 Jan 2023 00:00:00 +0000Tue, 17 Jan 2023 00:00:00 +0000https://www.chenshaowen.com/en/blog/how-to-repair-k8s-master-after-reinstalling-os.htmlRecently I ran into this twice: a host had to be reinstalled because of a failure. In one case only a single Etcd node was left, and the whole cluster stayed down for half an hour before it recovered. This post mainly records the process of initializing a fresh Ubuntu微信公众号KubernetesRepairOperationsEtcdTroubleshootingClusterKubekeyLearninghttps://www.chenshaowen.com/en/blog/how-to-repair-the-kubernetes-cluster-after-changing-ip.htmlTue, 25 Oct 2022 00:00:00 +0000Tue, 25 Oct 2022 00:00:00 +0000https://www.chenshaowen.com/en/blog/how-to-repair-the-kubernetes-cluster-after-changing-ip.htmlA record of repairing a cluster failure caused by an IP change. There are two clusters: one single-node (allinone) cluster, and one four-node cluster (3 masters, 1 node). 1. Update the Etcd Certificates [On every Etcd node] Back up the Etcd certificates 1 cp -R /etc/ssl/etcd/ssl /etc/ssl/etcd/ssl-bak View the domains微信公众号KubernetesOperationsRepairTroubleshootingLearningEtcdCertificatesClusterNetworkhttps://www.chenshaowen.com/en/blog/the-use-of-etcd-and-etcdctl.htmlTue, 11 Aug 2020 00:00:00 +0000Tue, 11 Aug 2020 00:00:00 +0000https://www.chenshaowen.com/en/blog/the-use-of-etcd-and-etcdctl.html1. Basic Introduction to Etcd Etcd is a distributed Key/Value storage system. Through distributed locks, leader election, and write barriers it achieves distributed coordination, offering highly available, persistent data storage and retrieval services. How it works Every Etcd node stores a complete copy of the data, and at any moment微信公众号EtcdEtcdctlKubernetesOperationsLearningDistributed StorageConfigurationClusterhttps://www.chenshaowen.com/en/blog/service-discovery-etcd-confd-nginx.htmlThu, 08 Feb 2018 14:51:16 +0000Thu, 08 Feb 2018 14:51:16 +0000https://www.chenshaowen.com/en/blog/service-discovery-etcd-confd-nginx.htmlThis post mainly explains why the service discovery feature is needed and compares several service discovery tools. It also puts service discovery with Etcd, Confd, and Nginx into practice on CentOS. 1. Service Registration and Discovery 1.1 Why Service Registration and Discovery Are Needed With the rise of microservices, a微信公众号ToolsMicroservicesEtcdConfdNginxService Discovery