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HAProxy vs MaxScale: What are the differences?

Introduction

HAProxy and MaxScale are both popular load balancing solutions used to distribute network traffic across multiple servers. While they share some similarities, there are key differences between the two.

  1. Scalability: HAProxy is designed to be highly scalable, with the ability to handle thousands of connections simultaneously. It relies on a single process, which can utilize multiple CPU cores efficiently. On the other hand, MaxScale is designed to provide a more horizontally scalable solution, allowing for the addition of more servers as the load increases. It achieves this through a lightweight, single-threaded architecture, which can be distributed across multiple instances.

  2. Architecture: HAProxy uses a monolithic architecture, with the entire load balancing logic residing in a single process. This makes it less complex and easier to configure. MaxScale, on the other hand, follows a modular architecture with a plugin-based system. It provides a wide range of modules that can be enabled or disabled based on the specific requirements, providing more flexibility and extensibility.

  3. Protocol Support: HAProxy primarily focuses on layer 4 (TCP) and layer 7 (HTTP) load balancing. It offers advanced features like SSL termination, HTTP compression, and request queueing. MaxScale, on the other hand, provides a more comprehensive protocol support, including MySQL, MariaDB, and MongoDB. It acts as a proxy between applications and databases, providing features like query routing and read-write splitting specifically tailored for database traffic.

  4. High Availability: HAProxy includes built-in high availability mechanisms, allowing for automatic failover and recovery. It supports active-passive and active-active configurations, ensuring minimal downtime in case of server failures. MaxScale also provides high availability features, but it focuses more on transparent failover and routing capabilities within a database cluster, ensuring uninterrupted access to data even in the event of failures.

  5. Administration and Monitoring: HAProxy provides a simple command-line interface for configuration and management. It also provides basic monitoring capabilities through a built-in statistics page. MaxScale, on the other hand, offers a more comprehensive management console, allowing for easier configuration and monitoring of multiple instances. It provides real-time insights into the performance and health of the load balancer and its modules.

  6. Community and Support: HAProxy has a larger and more established community, with extensive documentation and online resources available. It has been widely adopted and has a proven track record of stability and reliability. MaxScale, although relatively newer, has a growing community and offers commercial support from its parent company, MariaDB. It benefits from the expertise of its developers and the vibrant MariaDB ecosystem.

In Summary, HAProxy and MaxScale differ in scalability, architecture, protocol support, high availability mechanisms, administration and monitoring capabilities, and community support.

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Pros of HAProxy
Pros of MaxScale
  • 133
    Load balancer
  • 102
    High performance
  • 69
    Very fast
  • 58
    Proxying for tcp and http
  • 55
    SSL termination
  • 31
    Open source
  • 27
    Reliable
  • 20
    Free
  • 18
    Well-Documented
  • 12
    Very popular
  • 7
    Runs health checks on backends
  • 7
    Suited for very high traffic web sites
  • 6
    Scalable
  • 5
    Ready to Docker
  • 4
    Powers many world's most visited sites
  • 3
    Simple
  • 2
    Ssl offloading
  • 2
    Work with NTLM
  • 1
    Available as a plugin for OPNsense
  • 1
    Redis
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    Cons of HAProxy
    Cons of MaxScale
    • 6
      Becomes your single point of failure
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      What is HAProxy?

      HAProxy (High Availability Proxy) is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

      What is MaxScale?

      It is a database proxy that extends the high availability, scalability, and security of MariaDB Server while at the same time simplifying application development by decoupling it from underlying database infrastructure.

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      What companies use HAProxy?
      What companies use MaxScale?
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      What tools integrate with HAProxy?
      What tools integrate with MaxScale?

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      What are some alternatives to HAProxy and MaxScale?
      NGINX
      nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.
      Traefik
      A modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components and configures itself automatically and dynamically.
      Envoy
      Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures.
      Squid
      Squid reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator. It runs on most available operating systems, including Windows and is licensed under the GNU GPL.
      Varnish
      Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x, depending on your architecture.
      See all alternatives