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distributed systems · Deep dive

ZooKeeper — Paxos (ZAB) at Yahoo scale

11 min read
Scaffold

Yahoo's Zookeeper Atomic Broadcast — a Paxos variant. Backs HBase, Kafka (pre-2.8), Solr, and every Hadoop-era system. The most battle-tested consensus system ever deployed.

This deep-dive is a scaffold.

The overview above is ready. The full-fledged deep dive with explanations, code walkthroughs, and animated diagrams is queued for the next authoring pass.

Meanwhile, return to the main consensus paxos raft page for the full concept explanation including animated walkthroughs and real-world scenario visualizations.