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Consul vs Eureka vs Zookeeper: What are the differences?

Consul is a service discovery framework with a REST interface and some features such as health checking, service segmentation with its own internal distributed key-value store. Consul includes service discovery, but also rich health checking, locking, Key/value, multi-datacenter federation, an event system. Eureka – A service discovery tool, the architecture is primarily client/server, with clients mainly using embedded SDK to register and discover services. A service locator used as part of Netflix's load balancers and failovers. Zookeeper –Apache Zookeeper is a distributed key-value store which can be used as the basis to implement service discovery. Mostly a common-purpose distributed key/value store used for service-discovery in conjunction.

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Pros of Consul
Pros of Eureka
Pros of Zookeeper
  • 60
    Great service discovery infrastructure
  • 35
    Health checking
  • 29
    Distributed key-value store
  • 26
  • 23
  • 12
  • 10
    Token-based acls
  • 6
    Gossip clustering
  • 5
    Dns server
  • 3
    Not Java
  • 1
    Docker integration
  • 21
    Easy setup and integration with spring-cloud
  • 9
    Web ui
  • 8
  • 8
    Health checking
  • 7
    Circuit breaker
  • 6
    Netflix battle tested components
  • 6
    Service discovery
  • 4
    Open Source
  • 11
    High performance ,easy to generate node specific config
  • 8
  • 8
    Kafka support
  • 5
    Spring Boot Support
  • 3
    Supports extensive distributed IPC
  • 2
  • 2
    Used in ClickHouse
  • 2
    Supports DC/OS
  • 1
    Used in Hadoop
  • 1
    Embeddable In Java Service

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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 Eureka?

Eureka is a REST (Representational State Transfer) based service that is primarily used in the AWS cloud for locating services for the purpose of load balancing and failover of middle-tier servers.

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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Amazon S3KafkaZookeeper+5
May 6 2020 at 6:34AM


What are some alternatives to Consul, Eureka, and Zookeeper?
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.
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:
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 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 is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. Redis provides data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes, and streams.
See all alternatives