etcd
A distributed, reliable key-value store for the most critical data of a distributed system.
As etcd is an open source project, you can find more
open source alternatives and stats
on LibHunt.
We don't know any good etcd open-source alternatives yet.
You are more than welcome to suggest any alternatives that you know of, or ask the community for suggestions.
Alternatively, we recommend checking out LibHunt for open-source libraries and alternatives to etcd.