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Design a Wide-Column Store like Cassandra

A leaderless wide-column store: a token ring with virtual nodes, consistency tuned per query, an LSM write path and repair that keeps replicas converged: one-hour boards for junior, senior and staff, with the theory behind them.

cassandrakey-technologywide-columnnosqllsm-treekeyspacesawsinterview-board

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Outline of the design layout

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