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NATS VS Apache Kafka

Compare NATS VS Apache Kafka and see what are their differences

NATS logo NATS

NATS.io is an open source messaging system for cloud native applications, IoT messaging, Edge, and microservices architectures.

Apache Kafka logo Apache Kafka

Apache Kafka is an open-source message broker project developed by the Apache Software Foundation written in Scala.
  • NATS Landing page
    Landing page //
    2023-01-05

NATS.io is a connective technology for distributed systems and is a perfect fit to connect devices, edge, cloud or hybrid deployments. True multi-tenancy makes NATS ideal for SaaS and self-healing and scaling technology allows for topology changes anytime with zero downtime.

  • Apache Kafka Landing page
    Landing page //
    2022-10-01

NATS features and specs

  • Performance
    NATS is designed for high performance, offering low latency and high throughput, which makes it suitable for real-time applications.
  • Scalability
    It supports horizontal scaling with ease, allowing the system to handle a growing number of connections and messages effectively.
  • Simplicity
    NATS has a straightforward API and simple configuration, making it easier to use and manage compared to more complex messaging systems.
  • Fault Tolerance
    NATS includes features like clustering, message persistence, and support for distributed systems, contributing to high availability and reliability.
  • Polyglot Support
    NATS supports multiple programming languages, including Go, Java, Python, Ruby, and more, making it versatile in various tech stacks.
  • Event-Driven Architecture
    NATS is well-suited for event-driven architecture, facilitating real-time communication and distributed system design.

Possible disadvantages of NATS

  • Limited Message Persistence
    While NATS provides JetStream for message persistence, it was traditionally designed for transient messaging, which might not satisfy all persistence needs.
  • Complex Clustering
    Setting up and maintaining NATS clusters can be complex and may require careful planning and expertise.
  • Learning Curve
    Though simple to start, mastering NATS for large-scale and production-grade deployments can involve a steep learning curve.
  • Feature Set
    NATS focuses on core messaging features, which means it might lack some of the advanced features provided by other messaging systems like Kafka.
  • Ecosystem
    The NATS ecosystem is growing but may not be as extensive as other established messaging systems, potentially limiting available third-party tools and integrations.

Apache Kafka features and specs

  • High Throughput
    Kafka is capable of handling thousands of messages per second due to its distributed architecture, making it suitable for applications that require high throughput.
  • Scalability
    Kafka can easily scale horizontally by adding more brokers to a cluster, making it highly scalable to serve increased loads.
  • Fault Tolerance
    Kafka has built-in replication, ensuring that data is replicated across multiple brokers, providing fault tolerance and high availability.
  • Durability
    Kafka ensures data durability by writing data to disk, which can be replicated to other nodes, ensuring data is not lost even if a broker fails.
  • Real-time Processing
    Kafka supports real-time data streaming, enabling applications to process and react to data as it arrives.
  • Decoupling of Systems
    Kafka acts as a buffer and decouples the production and consumption of messages, allowing independent scaling and management of producers and consumers.
  • Wide Ecosystem
    The Kafka ecosystem includes various tools and connectors such as Kafka Streams, Kafka Connect, and KSQL, which enrich the functionality of Kafka.
  • Strong Community Support
    Kafka has strong community support and extensive documentation, making it easier for developers to find help and resources.

Possible disadvantages of Apache Kafka

  • Complex Setup and Management
    Kafka's distributed nature can make initial setup and ongoing management complex, requiring expert knowledge and significant administrative effort.
  • Operational Overhead
    Running Kafka clusters involves additional operational overhead, including hardware provisioning, monitoring, tuning, and scaling.
  • Latency Sensitivity
    Despite its high throughput, Kafka may experience increased latency in certain scenarios, especially when configured for high durability and consistency.
  • Learning Curve
    The concepts and architecture of Kafka can be difficult for new users to grasp, leading to a steep learning curve.
  • Hardware Intensive
    Kafka's performance characteristics often require dedicated and powerful hardware, which can be costly to procure and maintain.
  • Dependency Management
    Managing Kafka's dependencies and ensuring compatibility between versions of Kafka, Zookeeper, and other ecosystem tools can be challenging.
  • Limited Support for Small Messages
    Kafka is optimized for large throughput and can be inefficient for applications that require handling a lot of small messages, where overhead can become significant.
  • Operational Complexity for Small Teams
    Smaller teams might find the operational complexity and maintenance burden of Kafka difficult to manage without a dedicated operations or DevOps team.

NATS videos

The coolest OSS project you've never heard of: NATS Getting started!

Apache Kafka videos

Apache Kafka Tutorial | What is Apache Kafka? | Kafka Tutorial for Beginners | Edureka

More videos:

  • Review - Apache Kafka - Getting Started - Kafka Multi-node Cluster - Review Properties
  • Review - 4. Apache Kafka Fundamentals | Confluent Fundamentals for Apache Kafka®
  • Review - Apache Kafka in 6 minutes
  • Review - Apache Kafka Explained (Comprehensive Overview)
  • Review - 2. Motivations and Customer Use Cases | Apache Kafka Fundamentals

Category Popularity

0-100% (relative to NATS and Apache Kafka)
Developer Tools
100 100%
0% 0
Stream Processing
0 0%
100% 100
Data Integration
21 21%
79% 79
App Development
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare NATS and Apache Kafka

NATS Reviews

Best message queue for cloud-native apps
NATS is designed to be simple and easy to use, with a small footprint and low latency. It is often used in cloud-native environments to connect different components of a distributed system or to enable communication between microservices. NATS also supports message persistence, security, and clustering, making it a robust messaging system for building scalable and resilient...
Source: docs.vanus.ai
Are Free, Open-Source Message Queues Right For You?
One challenge of NATS is that it does not support reliable message queuing out of the box - messages can be lost if a client disconnects before it receives them. This can be mitigated by using NATS Streaming, a data streaming system powered by NATS, but it adds complexity.
Source: blog.iron.io
NATS vs RabbitMQ vs NSQ vs Kafka | Gcore
NATS is known for its high performance, low latency, and emphasis on simplicity after it was rewritten in Go. Its rewrite in Go makes NATS an ideal choice for demanding and real-time applications and has increased its throughput compared to its original Ruby implementation.
Source: gcore.com

Apache Kafka Reviews

Best ETL Tools: A Curated List
Debezium is an open-source Change Data Capture (CDC) tool that originated from RedHat. It leverages Apache Kafka and Kafka Connect to enable real-time data replication from databases. Debezium was partly inspired by Martin Kleppmann’s "Turning the Database Inside Out" concept, which emphasized the power of the CDC for modern data pipelines.
Source: estuary.dev
Best message queue for cloud-native apps
If you take the time to sort out the history of message queues, you will find a very interesting phenomenon. Most of the currently popular message queues were born around 2010. For example, Apache Kafka was born at LinkedIn in 2010, Derek Collison developed Nats in 2010, and Apache Pulsar was born at Yahoo in 2012. What is the reason for this?
Source: docs.vanus.ai
Are Free, Open-Source Message Queues Right For You?
Apache Kafka is a highly scalable and robust messaging queue system designed by LinkedIn and donated to the Apache Software Foundation. It's ideal for real-time data streaming and processing, providing high throughput for publishing and subscribing to records or messages. Kafka is typically used in scenarios that require real-time analytics and monitoring, IoT applications,...
Source: blog.iron.io
10 Best Open Source ETL Tools for Data Integration
It is difficult to anticipate the exact demand for open-source tools in 2023 because it depends on various factors and emerging trends. However, open-source solutions such as Kubernetes for container orchestration, TensorFlow for machine learning, Apache Kafka for real-time data streaming, and Prometheus for monitoring and observability are expected to grow in prominence in...
Source: testsigma.com
11 Best FREE Open-Source ETL Tools in 2024
Apache Kafka is an Open-Source Data Streaming Tool written in Scala and Java. It publishes and subscribes to a stream of records in a fault-tolerant manner and provides a unified, high-throughput, and low-latency platform to manage data.
Source: hevodata.com

Social recommendations and mentions

Based on our record, Apache Kafka should be more popular than NATS. It has been mentiond 142 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

NATS mentions (73)

  • What If We Could Rebuild Kafka from Scratch?
    Https://nats.io is easier to use than Kafka and already solves several of the points in this post I believe, like removing partitions, supporting key-based streams, and having flexible topic hierarchies. - Source: Hacker News / 9 days ago
  • Testing Microservices: Message Isolation for Kafka, SQS, More
    NATS, with its lightweight and high-performance design, offers features well-suited for sandbox testing. We can leverage NATS queue groups, which function similarly to Kafka consumer groups. - Source: dev.to / 26 days ago
  • Kubernetes on Autopilot: Event-Driven Automation Across Clusters
    In today’s dynamic cloud environments, managing Kubernetes resources across multiple clusters can be a complex task. Traditional methods often lack the agility and event-driven architecture needed to respond quickly to changes and automate resource provisioning. This article explores how Sveltos, in conjunction with NATS and JetStream, simplifies multi-cluster Kubernetes management through event-driven automation,... - Source: dev.to / 3 months ago
  • I'll think twice before using GitHub Actions again
    Hey thanks! Definitely interesting! I do wonder if this really solves the author problem because by the looks of it , you just have to run meta command and it would run over each of the sub directory. While at the same time , I think I like it because this is what I think people refer to as "modular monolith" Combining this with nats https://nats.io/ (hey if you don't want it to be over the network , you... - Source: Hacker News / 3 months ago
  • A Distributed Systems Reading List
    I think it's important to clarify who these lists are really for. They're not meant for people simply looking to "learn distributed systems," in my opinion. These might help those pushing the envelope or looking for new approaches. For the rest of us, imagine asking how to solve quadratic equations and getting 100 papers on category theory. > See also https://ferd.ca/a-distributed-systems-reading-list.html, which... - Source: Hacker News / 7 months ago
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Apache Kafka mentions (142)

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What are some alternatives?

When comparing NATS and Apache Kafka, you can also consider the following products

Socket.io - Realtime application framework (Node.JS server)

RabbitMQ - RabbitMQ is an open source message broker software.

Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Apache ActiveMQ - Apache ActiveMQ is an open source messaging and integration patterns server.

StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.

SignalR - SignalR is a server-side software system designed for writing scalable Internet applications, notably web servers.