Load Limits
A web server (program) has defined load limits, because it can handle only a limited number of concurrent client connections (usually between 2 and 80,000, by default between 500 and 1,000) per IP address (and TCP port) and it can serve only a certain maximum number of requests per second depending on:
- its own settings,
- the HTTP request type,
- whether the content is static or dynamic,
- whether the content is cached, and
- the hardware and software limitations of the OS of the computer on which the web server runs.
When a web server is near to or over its limits, it becomes unresponsive.
Read more about this topic: Web Server
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