etcd2 in the CoreOS Linux Stable channel

By Alex Crawford, June 9, 2015

Originally published on the CoreOS blog (archived copy) . Re-published with the authors' permission.

This week marks a particularly special milestone for etcd2. Beginning today, etcd2 will be available in the CoreOS Linux Stable channel. This means that everyone will now be able to take advantage of etcd2, which we launched earlier this year.

etcd is an open source, distributed, consistent key-value store. It is a core component of CoreOS software that helps to facilitate safe automatic updates, coordinate work between hosts, and manage overlay networking for containers. To recap, new features and improvements in etcd2 include:

Reconfiguration protocol improvements, enabling more safeguards against accidental misconfiguration
A new raft implementation, providing improved cluster stability and predictability in massive server environments
On-disk safety improvements, in which CRC checksums and append-only log behavior allow etcd to detect external data corruption and avoid internal file misoperations

More details can be found in this post which first introduced etcd2. Give it a shot and let us know what you think!

A special thank-you to all of the contributors who made this possible. Join us in the continued development of etcd through the etcd-dev discussion mailing list, GitHub issues, or contributing directly to the project.

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