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The article describes how JD.com built and operates the JDOS Operations Platform to manage a multi‑million‑container Docker and Kubernetes fleet, detailing the challenges of massive scale, the architectural components such as the configuration center, operation center, inspection system, gossip‑based communication, and an intelligent alerting system that together enable efficient, automated, and reliable large‑scale container operations.
This article explains Dynamo, the decentralized key‑value storage system, covering its design goals, consistent‑hashing partitioning with virtual nodes, replication strategies, quorum‑based consistency, conflict resolution with vector clocks, hinted handoff, Merkle‑tree synchronization, and gossip‑based failure detection.