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The document discusses asynchronous processing in Ruby. It begins by explaining what asynchronous processing is and why it is useful, such as for long-running tasks that could block a web request. It then covers different approaches for asynchronous processing in Ruby including using threads, run_later, polling databases with tools like DelayedJob, message queues like RabbitMQ, and schedulers like rufus-scheduler. It also discusses some challenges with asynchronous processing and recommends approaches based on the complexity and load of the tasks.

























































