Can RDS Read replica be promoted to master?
Execute the operations on a designated Read Replica and wait for them to complete. Wait for the Read Replica to catch up with the master database instance. Promote the Read Replica to a master. Direct all database traffic to the newly promoted master.
What is an Amazon RDS Read replica?
Amazon RDS Read Replicas enable you to create one or more read-only copies of your database instance within the same AWS Region or in a different AWS Region. Updates made to the source database are then asynchronously copied to your Read Replicas.
What is a DB Read replica?
A read replica is a copy of the primary instance that reflects changes to the primary in almost real time, in normal circumstances. You can use a read replica to offload read requests or analytics traffic from the primary instance. Additionally, for disaster recovery, you can perform a regional migration.
How to create a Read Replica in Amazon RDS?
You can create a read replica for a DB instance running MySQL, MariaDB, Oracle, PostgreSQL, or SQL Server. For more information, see Working with Read Replicas in the Amazon RDS User Guide . Amazon Aurora doesn’t support this action. Call the CreateDBInstance action to create a DB instance for an Aurora DB cluster.
How to promote a Read Replica to a DB instance?
To promote a Read Replica to a DB instance Sign in to the AWS Management Console and open the Amazon RDS console at https://console.aws.amazon.com/rds/. In the Amazon RDS console, choose Databases. The Databases pane appears. Choose the Read Replica that you want to promote. For Actions, choose Promote read replica.
What’s the difference between Oracle and Amazon RDS?
Amazon RDS replicates all databases in the source DB instance. The Oracle DB engine supports replica databases in mounted mode. A mounted replica doesn’t accept user connections and so can’t serve a read-only workload.
How to create a DB instance in Amazon?
If the source DB instance is in the same Amazon Web Services Region as the read replica, specify a valid DB instance identifier. If the source DB instance is in a different Amazon Web Services Region from the read replica, specify a valid DB instance ARN. For more information, see Constructing an ARN for Amazon RDS in the Amazon RDS User Guide .