vivo Internet Technology
Aug 28, 2024 · Backend Development
Time Wheel Algorithm: Evolution, Implementation, and Applications
The article chronicles the time wheel algorithm from its 1997 origins, explains simple, round‑based, and hierarchical wheel designs, compares them to queue timers, details Dubbo’s HashedWheelTimer implementation, and shows how combining the wheel with a delay‑message queue can dramatically improve service scalability and efficiency.
Backend DevelopmentData StructuresDubbo
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