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Consul
Consul

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474
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181
etcd
etcd

148
120
+ 1
15
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Consul vs etcd: What are the differences?

Consul: A tool for service discovery, monitoring and configuration. Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable; etcd: A distributed consistent key-value store for shared configuration and service discovery. etcd is a distributed key value store that provides a reliable way to store data across a cluster of machines. It’s open-source and available on GitHub. etcd gracefully handles master elections during network partitions and will tolerate machine failure, including the master.

Consul and etcd can be primarily classified as "Open Source Service Discovery" tools.

"Great service discovery infrastructure" is the primary reason why developers consider Consul over the competitors, whereas "Service discovery" was stated as the key factor in picking etcd.

Consul and etcd are both open source tools. It seems that etcd with 25.8K GitHub stars and 5.25K forks on GitHub has more adoption than Consul with 16.4K GitHub stars and 2.85K GitHub forks.

Slack, DigitalOcean, and Rainist are some of the popular companies that use Consul, whereas etcd is used by CNCFlora, Beam, and Giant Swarm. Consul has a broader approval, being mentioned in 134 company stacks & 55 developers stacks; compared to etcd, which is listed in 27 company stacks and 11 developer stacks.

What is Consul?

Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable.

What is etcd?

etcd is a distributed key value store that provides a reliable way to store data across a cluster of machines. It’s open-source and available on GitHub. etcd gracefully handles master elections during network partitions and will tolerate machine failure, including the master.
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      What are some alternatives to Consul and etcd?
      Zookeeper
      A centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. All of these kinds of services are used in some form or another by distributed applications.
      SkyDNS
      SkyDNS is a distributed service for announcement and discovery of services. It leverages Raft for high-availability and consensus, and utilizes DNS queries to discover available services. This is done by leveraging SRV records in DNS, with special meaning given to subdomains, priorities and weights (more info here: http://blog.gopheracademy.com/skydns).
      Ambassador
      Map services to arbitrary URLs in a single, declarative YAML file. Configure routes with CORS support, circuit breakers, timeouts, and more. Replace your Kubernetes ingress controller. Route gRPC, WebSockets, or HTTP.
      Kubernetes
      Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
      Redis
      Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
      See all alternatives
      Decisions about Consul and etcd
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      Reviews of Consul and etcd
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      How developers use Consul and etcd
      Avatar of Chris Hartwig
      Chris Hartwig uses ConsulConsul

      All our services use Consul for discovery, configuration and cluster management (auto scaling, health monitoring, dynamic reconfiguration, leader elections)

      Avatar of Tom Staijen
      Tom Staijen uses ConsulConsul

      Discovery service. Some configuration is stored in consul.

      Avatar of theskyinflames
      theskyinflames uses etcdetcd

      Set envrionment variables for Docker containers's apps.

      Avatar of Giant Swarm
      Giant Swarm uses etcdetcd

      etcd is a core component of our microservice platform.

      Avatar of Robert Hao
      Robert Hao uses ConsulConsul

      I used Consul as config center & service discoverer.

      Avatar of Robert Hao
      Robert Hao uses etcdetcd

      I used etcd as high availability KV storage.

      Avatar of Ismael Arenzana
      Ismael Arenzana uses ConsulConsul

      How else do you discover microservices? ;)

      Avatar of exana
      exana uses ConsulConsul

      For service discovery.

      How much does Consul cost?
      How much does etcd cost?
      Pricing unavailable
      Pricing unavailable