Database replication copies data from a primary database to one or more secondary databases. Replication improves availability, fault tolerance, and read performance.
Configuration involves defining replication roles, synchronization methods, and conflict resolution rules. Replicas may be used for reporting, backups, or failover scenarios.
Monitoring replication status ensures data consistency. Replication lag can impact application behavior if replicas are used for read operations.
Proper replication configuration increases resilience, while poor setup can result in data inconsistency or service outages.
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