Apache HTTP Server vs Apache Traffic Server: What are the differences?
Introduction:
Apache HTTP Server and Apache Traffic Server are both widely used web server software tools. While they both serve the purpose of delivering web content, there are key differences between the two.
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Response Processing: Apache HTTP Server processes responses synchronously, which means it waits until the entire response is received before serving it to the client. On the other hand, Apache Traffic Server uses asynchronous processing, allowing it to start sending data to the client as soon as it becomes available, resulting in better performance and reduced latency.
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Caching Capability: Apache HTTP Server does not have built-in caching capabilities, requiring the use of additional modules or plugins for caching functionality. Apache Traffic Server, on the other hand, comes with built-in caching capabilities, making it more suitable for content caching and improving overall server performance.
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Reverse Proxy Features: Apache HTTP Server can be configured as a reverse proxy, allowing it to distribute incoming client requests to multiple backend servers. However, configuring and managing a reverse proxy in Apache HTTP Server requires additional configuration. In contrast, Apache Traffic Server is specifically designed as a reverse proxy caching server, making it easier to configure and manage reverse proxy features.
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HTTP/2 Support: Apache HTTP Server has support for HTTP/2, the latest version of the HTTP protocol, allowing for faster and more efficient communication between the server and the client. Apache Traffic Server, on the other hand, has native support for HTTP/2, optimizing server-client communication and enhancing performance for modern web applications.
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Plugin Ecosystem: Apache HTTP Server has a rich ecosystem of third-party plugins and modules, providing enhanced functionality and customization options. On the other hand, Apache Traffic Server has a relatively smaller plugin ecosystem, with fewer options for extending its functionalities.
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Configuration and Management: Apache HTTP Server's configuration file is typically edited manually, and changes require a server restart to take effect. Apache Traffic Server, on the other hand, provides a robust API and command-line tools for dynamic configuration and management, allowing administrators to make changes without restarting the server.
In Summary, Apache HTTP Server and Apache Traffic Server differ in terms of response processing, caching capability, reverse proxy features, HTTP/2 support, plugin ecosystem, and configuration management.