Working with MySQL replication in Amazon RDS - Amazon Relational Database Service

Working with MySQL replication in Amazon RDS

You usually use read replicas to configure replication between Amazon RDS DB instances. For general information about read replicas, see Working with read replicas. For specific information about working with read replicas on Amazon RDS for MySQL, see Working with MySQL read replicas.

You can use global transaction identifiers (GTIDs) for replication with RDS for MySQL. For more information, see Using GTID-based replication for Amazon RDS for MySQL.

You can also set up replication between an RDS for MySQL DB instance and a MariaDB or MySQL instance that is external to Amazon RDS. For information about configuring replication with an external source, see Configuring binary log file position replication with an external source instance.

For any of these replication options, you can use either row-based replication, statement-based, or mixed replication. Row-based replication only replicates the changed rows that result from a SQL statement. Statement-based replication replicates the entire SQL statement. Mixed replication uses statement-based replication when possible, but switches to row-based replication when SQL statements that are unsafe for statement-based replication are run. In most cases, mixed replication is recommended. The binary log format of the DB instance determines whether replication is row-based, statement-based, or mixed. For information about setting the binary log format, see Configuring MySQL binary logging.

Note

You can configure replication to import databases from a MariaDB or MySQL instance that is external to Amazon RDS, or to export databases to such instances. For more information, see Importing data to an Amazon RDS MariaDB or MySQL DB instance with reduced downtime and Exporting data from a MySQL DB instance by using replication.