4 ms·

Sounds interesting! What are the benefits of using Etcd over Consul? (https://www.consul.io/ https://www.consul.io/)

meddlepal 10y ago
I've used Consul but I haven't used Etcd directly, besides using via Kubernetes. One benefit IMO is the number of high-profile eyeballs on the project due to the success of K8s and the pedigree of engineers working on it.
ideal0227 10y ago
I think the two projects focus on different things. Consul provides features like health checking, failure detection besides its consistent key-value store. It aims to provide an all-in-one solution[0]. etcd focuses on the consistent key-value store. The key-value store has more advanced features like multi-version keys, reliable watches, and provides better performance. People build additional features on top of etcd's key-value store/raft. (I work on etcd) [0] https://www.consul.io/intro/vs/index.html https://www.consul.io/intro/vs/index.html
- otterley 10y ago
  Do you have proof of the "better performance" claim?
  - ideal0227 10y ago
    Consul: https://github.com/hashicorp/consul/blob/master/bench/results-0.3.md https://github.com/hashicorp/consul/blob/master/bench/result... etcd: https://github.com/coreos/etcd/blob/master/Documentation/op-guide/performance.md#benchmarks https://github.com/coreos/etcd/blob/master/Documentation/op-... Note that the testing environments are not exact the same in the doc I listed, but comparable. Also Consul performance is improved after a few releases. So we did the benchmark internally on the same environment. The result is still comparable to what I listed in the two official docs. The best way to compare performance is still probably to run the benchmark on your own environment.
    - yo-code-sucks 10y ago
      Every time we used etcd in production we had a bad time with keys and consistency.
lisivka 10y ago
k8s works with etcd only. Consul is better in term of features.

I've used Consul but I haven't used Etcd directly, besides using via Kubernetes. One benefit IMO is the number of high-profile eyeballs on the project due to the success of K8s and the pedigree of engineers working on it.

ideal0227 10y ago

I think the two projects focus on different things. Consul provides features like health checking, failure detection besides its consistent key-value store. It aims to provide an all-in-one solution[0]. etcd focuses on the consistent key-value store. The key-value store has more advanced features like multi-version keys, reliable watches, and provides better performance. People build additional features on top of etcd's key-value store/raft. (I work on etcd) [0] https://www.consul.io/intro/vs/index.html https://www.consul.io/intro/vs/index.html

otterley 10y ago
Do you have proof of the "better performance" claim?
- ideal0227 10y ago
  Consul: https://github.com/hashicorp/consul/blob/master/bench/results-0.3.md https://github.com/hashicorp/consul/blob/master/bench/result... etcd: https://github.com/coreos/etcd/blob/master/Documentation/op-guide/performance.md#benchmarks https://github.com/coreos/etcd/blob/master/Documentation/op-... Note that the testing environments are not exact the same in the doc I listed, but comparable. Also Consul performance is improved after a few releases. So we did the benchmark internally on the same environment. The result is still comparable to what I listed in the two official docs. The best way to compare performance is still probably to run the benchmark on your own environment.
  - yo-code-sucks 10y ago
    Every time we used etcd in production we had a bad time with keys and consistency.

lisivka 10y ago

k8s works with etcd only. Consul is better in term of features.