Implementing Dubbo Asynchronous Calls with CompletableFuture: Practices and Performance Gains
By refactoring Dubbo RPC interfaces to return CompletableFuture, applying thenApply/thenCombine/thenCompose patterns, isolating a custom business thread pool, and handling errors and tracing, the team achieved up to 50% latency reduction, 25% response‑time improvement, a one‑third server cut and CPU utilization rise, demonstrating substantial performance and cost benefits.
