Create a read-only replica of PostgreSQL service

PostgreSQL read-only replicas allow you to perform read-only queries against the replica and reduce the load on the primary server. You can optimize query response times across different geographical locations because the replica can be created in different regions or on different cloud providers.

note

If you are running a Managed Service for TimescaleDB Pro plan, you have standby nodes available in a high availability setup. The standby nodes support read-only queries to reduce the effect of slow queries on the primary node.

Creating a replica of PostgreSQL

1. Log in to the Aiven web console.

2. Select the PostgreSQL instance for which you want to create a remote replica.

3. In the Overview tab, click Create a read replica.

4. In the Create a PostgreSQL read replica page, type a name for the remote replica, select the cloud provider, location, plan that you want to use, and click Create.

When the read-only replica is created it is listed as a service in your project. The Overview tab of the replica also lists the name of the primary service for the replica. To promote a read-only replica as a master database, click the Promote to master button.