Abstract: A node deployment method includes deploying a first node cluster in a first region, the first node cluster including M first primary nodes, and deploying a second node cluster in a second region, the second node cluster including at least one first secondary node corresponding to the first primary node. Mis a positive integer that ensures that a number of primary nodes in other node clusters meets deployment condition when the first node cluster fails. Meeting the deployment condition includes that the number of primary nodes in the other node clusters is sufficient to determine switching the first primary node to the first secondary node. The first region and the second region are physically separated.