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Eureka

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Keepalived

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Eureka vs Keepalived: What are the differences?

Introduction

In the world of distributed systems and high availability, tools like Eureka and Keepalived are crucial for maintaining stability and facilitating seamless failover mechanisms.

  1. Architecture: Eureka is a service registry tool used for service discovery in microservices architecture, while Keepalived is a routing software designed for Linux-based systems to provide high availability by monitoring and managing virtual IP addresses.

  2. Protocol: Eureka uses the REST-based protocol for service registration and discovery, while Keepalived utilizes the VRRP (Virtual Router Redundancy Protocol) to ensure network redundancy and failover in case of node failures.

  3. Language Support: Eureka is primarily designed for Java applications and offers seamless integration with Spring Cloud, making it ideal for microservices development in Java ecosystem. On the other hand, Keepalived can be used with any Linux-based system irrespective of the programming language used.

  4. Clustering: Eureka comes with built-in support for clustering, allowing multiple Eureka servers to communicate and replicate service registry information for fault tolerance. Keepalived, on the other hand, focuses on IP failover and does not inherently support clustering of multiple instances.

  5. Use Cases: Eureka is more suitable for cloud-native applications built on microservices architecture that require dynamic service discovery and load balancing, while Keepalived is preferred for network infrastructure where failover mechanisms for virtual IP addresses are essential to ensure continuous service availability.

  6. Community Support: Eureka is an open-source project maintained by Netflix and boasts a vibrant community of developers and contributors, ensuring regular updates and enhancements. Keepalived, being an open-source project as well, has a dedicated community but may not have the same level of widespread adoption and support compared to Eureka.

In Summary, Eureka and Keepalived differ in architecture, protocol, language support, clustering capabilities, use cases, and community support, catering to distinct needs in the realm of high availability and failover mechanisms in distributed systems.

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Pros of Eureka
Pros of Keepalived
  • 21
    Easy setup and integration with spring-cloud
  • 9
    Web ui
  • 8
    Monitoring
  • 8
    Health checking
  • 7
    Circuit breaker
  • 6
    Netflix battle tested components
  • 6
    Service discovery
  • 4
    Open Source
  • 2
    Load Balancer
  • 2
    Extremely fast (IPVS)
  • 1
    2 nodes HA cluster management
  • 1
    Virtual IP HA with VRRP

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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 Keepalived?

The main goal of this project is to provide simple and robust facilities for loadbalancing and high-availability to Linux system and Linux based infrastructures.

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What companies use Eureka?
What companies use Keepalived?
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What tools integrate with Eureka?
What tools integrate with Keepalived?

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What are some alternatives to Eureka and Keepalived?
Consul
Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable.
Zuul
It is the front door for all requests from devices and websites to the backend of the Netflix streaming application. As an edge service application, It is built to enable dynamic routing, monitoring, resiliency, and security. Routing is an integral part of a microservice architecture.
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.
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.
Serf
Serf is a service discovery and orchestration tool that is decentralized, highly available, and fault tolerant. Serf runs on every major platform: Linux, Mac OS X, and Windows. It is extremely lightweight: it uses 5 to 10 MB of resident memory and primarily communicates using infrequent UDP messages.
See all alternatives