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Akka vs Finagle: What are the differences?


Key Differences between Akka and Finagle:

  1. Concurrency Model: Akka is built on the Actor Model, which allows for easy and efficient handling of concurrent tasks by isolating them within lightweight, independent entities. On the other hand, Finagle uses Futures and Promises for asynchronous and non-blocking operations, providing a more scalable solution for handling I/O operations.

  2. Fault Tolerance: Akka provides built-in fault tolerance features like supervision strategies and self-healing mechanisms, making it suitable for building resilient and fault-tolerant systems. In contrast, Finagle focuses more on enabling developers to implement their own fault tolerance strategies, providing more flexibility but requiring more manual effort.

  3. Protocol Support: Akka primarily focuses on providing a framework for building distributed applications using actors, while Finagle is designed with a more narrow focus on building high-performance RPC services, making it more specialized in handling network communication protocols like Thrift and HTTP.

  4. Community Ecosystem: Akka has a larger and more established community ecosystem with a wide range of plugins, libraries, and tools available to support developers in building complex distributed systems. Finagle, although backed by Twitter, has a smaller community but offers strong support for building microservices and distributed systems within the context of a service-oriented architecture.

  5. Performance Overhead: Akka's Actor Model can introduce some performance overhead due to the additional abstraction layer of actors, which may impact the overall performance of highly concurrent systems. Finagle's emphasis on efficient asynchronous operations and non-blocking I/O can provide better performance in certain use cases, especially when dealing with high-throughput network services.

  6. Programming Paradigm: Akka promotes a more declarative and actor-based programming paradigm, where developers design systems as a collection of interacting actors, while Finagle encourages a more functional programming style with a focus on composing and transforming asynchronous computations using Futures and Promises.

In Summary, Akka and Finagle differ in their concurrency models, fault tolerance approaches, protocol support, community ecosystems, performance overhead, and programming paradigms.

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Pros of Akka
Pros of Finagle
  • 32
    Great concurrency model
  • 17
  • 12
    Actor Library
  • 10
    Open source
  • 7
  • 5
    Message driven
  • 5
  • 4
  • 3
  • 3
    Open Source

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Cons of Akka
Cons of Finagle
  • 3
    Mixing futures with Akka tell is difficult
  • 2
    Closing of futures
  • 2
    No type safety
  • 1
    Very difficult to refactor
  • 1
    Typed actors still not stable
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    What is Akka?

    Akka is a toolkit and runtime for building highly concurrent, distributed, and resilient message-driven applications on the JVM.

    What is Finagle?

    Finagle is an extensible RPC system for the JVM, used to construct high-concurrency servers. Finagle implements uniform client and server APIs for several protocols, and is designed for high performance and concurrency.

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    What companies use Akka?
    What companies use Finagle?
    See which teams inside your own company are using Akka or Finagle.
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    What tools integrate with Akka?
    What tools integrate with Finagle?
      No integrations found
      What are some alternatives to Akka and Finagle?
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      Some of Erlang's uses are in telecoms, banking, e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in support for concurrency, distribution and fault tolerance. OTP is set of Erlang libraries and design principles providing middle-ware to develop these systems.
      Kafka is a distributed, partitioned, replicated commit log service. It provides the functionality of a messaging system, but with a unique design.
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