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This article explains the principles, models, and implementations of Comet (including stream‑based and long‑polling approaches) and WebSocket as server‑push techniques for real‑time web applications, comparing their advantages, limitations, and practical deployment considerations.
This article examines server‑push technologies such as Comet, comparing plugin‑based socket approaches with HTTP long‑connection methods like AJAX long‑polling and iframe/htmlfile streaming, and provides practical guidance on building robust Comet applications using frameworks such as Pushlet.
This article reviews various web real‑time message push techniques—including polling, long‑polling, iframe streaming, socket plugins, and WebSocket—evaluates their pros and cons, and explains why the author selected the Comet approach implemented with the Python Tornado framework for a web push system.