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Consul

1K
1.3K
+ 1
204
etcd

235
321
+ 1
23
Zookeeper

629
811
+ 1
42

Consul vs Zookeeper vs etcd: What are the differences?

Service discovery tools help services find and communicate with one another. The rise of containers has increased the need for such services. Zookeeper originated in Hadoop for use in Hadoop clusters. It’s the most mature of these three options. etcd is a newer option known for its simplicity and ease of use. Consul is a bit more comprehensive than the other two options, offering not only a key value store but also a built-in framework for service discovery.

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Pros of Consul
Pros of etcd
Pros of Zookeeper
  • 59
    Great service discovery infrastructure
  • 35
    Health checking
  • 27
    Distributed key-value store
  • 25
    Monitoring
  • 23
    High-availability
  • 11
    Web-UI
  • 10
    Token-based acls
  • 6
    Gossip clustering
  • 5
    Dns server
  • 2
    Not Java
  • 1
    Docker integration
  • 11
    Service discovery
  • 6
    Fault tolerant key value store
  • 2
    Bundled with coreos
  • 1
    Open Source
  • 1
    Privilege Access Management
  • 1
    Consol integration
  • 1
    Secure
  • 11
    High performance ,easy to generate node specific config
  • 8
    Kafka support
  • 8
    Java
  • 5
    Spring Boot Support
  • 3
    Supports extensive distributed IPC
  • 2
    Supports DC/OS
  • 2
    Used in ClickHouse
  • 1
    Curator
  • 1
    Embeddable In Java Service
  • 1
    Used in Hadoop

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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.

What is 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.

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Why do developers choose Consul vs Zookeeper vs etcd?

  • Consul users call it a great service discovery infrastructure with high availability, health checking, gossip clustering, and Docker integration.
  • Zookeeper fans call it high performance and appreciate its Kafka and Spring Boot support.
  • etcd - etcd fans appreciate its fault tolerance as a key value store and that it’s bundled with Coreo.
What companies use Consul?
What companies use etcd?
What companies use Zookeeper?

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What tools integrate with Consul?
What tools integrate with etcd?
What tools integrate with Zookeeper?

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What are some alternatives to Consul, etcd, and Zookeeper?
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.
Istio
Istio is an open platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio's control plane provides an abstraction layer over the underlying cluster management platform, such as Kubernetes, Mesos, etc.
See all alternatives