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Can I Change the Replication Mode Between RDS for PostgreSQL Primary Instances and Read Replicas?
Updated on 2025-06-24 GMT+08:00
Can I Change the Replication Mode Between RDS for PostgreSQL Primary Instances and Read Replicas?
Both asynchronous (default) and synchronous replication between the primary and standby instances are supported.
- Asynchronous replication is recommended for applications requiring a guarantee of high availability.
- Synchronous replication is recommended for applications that require strong data consistency and can tolerate a short-time blocking of write operations.
The asynchronous-commit mode is supported between primary instances and read replicas and cannot be modified.
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