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Caution
You're viewing documentation for a previous version of ScyllaDB Open Source. Switch to the latest stable version.
ScyllaDB relies on the Raft consensus algorithm, which requires at least a quorum of nodes in a cluster to be available. If some nodes are down and the quorum is lost, schema updates fail.
See Handling Node Failures for information about recovery actions depending on the number of nodes and DCs in your cluster.
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