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Design a Coordination Service like ZooKeeper

A coordination service like ZooKeeper: znodes, sessions and watches, a ZAB quorum of five with observers, and the recipes for elections and locks: one-hour boards for junior, senior and staff, with the theory behind them.

key-technologyzookeepercoordinationconsensusleader-electiondistributed-locksawsinterview-board

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