Cognitive Technology Team
Oct 22, 2023 · Backend Development
Apollo Configuration Change Notification Process and Long‑Polling Mechanism
The article explains Apollo’s client‑side long‑polling workflow, how the Config Service suspends requests with Spring DeferredResult, stores them in a cache, and notifies clients of configuration changes via database messages and background scanning, enabling immediate config refresh.
ApolloConfiguration ManagementSpring DeferredResult
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