What is the difference between synchronous and asynchronous replication?

What is the difference between synchronous and asynchronous replication?

Synchronous replication means data is copied to a secondary location in real-time, ensuring both sites are always in sync. Asynchronous replication, on the other hand, allows for a delay in data transfer, which can improve performance but may lead to data loss in case of a failure.

What are the advantages of using synchronous replication?

The main advantages of synchronous replication include data consistency, immediate failover capabilities, and reduced risk of data loss, making it ideal for critical applications.

Are there any downsides to synchronous replication?

Yes, synchronous replication can introduce latency and may impact performance, especially over long distances, as it requires confirmation from both sites before completing transactions.

When should I consider using asynchronous replication?

Asynchronous replication is suitable when performance is a priority, and some data loss is acceptable, such as in backup scenarios or less critical applications.