The Paxos algorithm is commonly used in building fault-tolerant and highly available systems.

One example of a product that uses the Paxos algorithm is Apache ZooKeeper. ZooKeeper is a distributed coordination service that provides primitives such as locks, synchronization, and configuration management to distributed systems. ZooKeeper uses the Paxos algorithm as the underlying consensus protocol to maintain consistency and ensure that updates are applied in the same order across all nodes in the system.

Another example of a product that uses the Paxos algorithm is the Kubernetes container orchestration system. Kubernetes uses the etcd distributed key-value store to maintain cluster state and configuration. etcd uses the Raft consensus algorithm, which is similar to Paxos, to ensure consistency and availability of the data.

Other products and services that use the Paxos algorithm include the Google Chubby lock service, the Google Cloud Spanner database, and the CockroachDB distributed SQL database.
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