This is a post from the CNCF blog which we are sharing with our community as well. As a critical component of many production systems, including Kubernetes, the etcd project’s first priority is reliability. Ensuring consistency and data safety requires our project contributors to continuously improve testing methodologies. In this article, we will describe how we used advanced simulation testing to uncover subtle bugs, validate the robustness of our releases, and increase our confidence in ...| etcd
There is a common issue 19557 in the etcd v3.5 to v3.6 upgrade that may cause the upgrade process to fail. You can find detailed information and related discussions in the issue. TL; DR Users are required to first upgrade to etcd v3.5.20 (or a higher patch version) before upgrading to etcd v3.6.0. Failure to do so may result in an unsuccessful upgrade. What’s the symptom? When upgrading a multi-member etcd cluster from a version between v3.5.1 and v3.5.19 to v3.6.0, the upgrade may fail due...| etcd