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What Is the Difference Between Synchronous and Asynchronous Replication, and When Should I Use Read Replicas?

Synchronous vs asynchronous replication differ in when data changes are copied to replicas – synchronous replication waits for a replica to confirm each write before finalizing a transaction (ensuring up-to-date copies), whereas asynchronous replication allows the primary system to commit writes immediately and updates replicas afterward, resulting in a delay (replication lag) in data consistency.

Understanding Data Replication and Consistency

Data replication in databases means copying data from a primary (leader) database to

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