<ul><li>High concurrency is a challenge for large internet systems as it leads to increased resource consumption, potentially causing system crashes.</li><li>High concurrency system architecture focuses on meeting users' demands for increased computational resources to handle simultaneous access.</li><li>Two main solutions for enhancing computational resources are vertical scaling, which improves a single server's processing power, and horizontal scaling, which involves using multiple servers in a distributed cluster.</li><li>Horizontal scaling is preferred in most large internet systems today due to its better elasticity and ability to handle varying user loads by adding servers as needed.</li></ul>

High Concurrency System Architecture Design

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