Description: The node replacement strategy refers to the approach taken to replace failed nodes in a distributed database cluster. In a distributed system, where data is stored across multiple nodes, availability and resilience are paramount. When a node fails, it is crucial to have an efficient mechanism to restore the cluster’s functionality. This strategy involves identifying the failed node, assessing its state, and, depending on the cluster’s configuration, deciding whether to replace it with a new node or restore the original node. The node replacement strategy also considers data replication, ensuring that the information stored on the failed node is redistributed among the remaining nodes. This not only helps maintain data integrity but also minimizes system downtime. Additionally, the strategy may include reconfiguring the cluster to optimize performance and data distribution, ensuring that the system continues to operate efficiently even after the loss of a node. In summary, the node replacement strategy is an essential component in managing distributed database clusters, ensuring that the system remains robust and available in the face of hardware or software failures.