Instance Types

Last updated: 2021-02-25 19:03:18

    A TencentDB instance is a standalone database environment running in Tencent Cloud. It includes multiple databases created by users and can be accessed using the same tools and applications as those for a standalone database instance.

    TencentDB for PostgreSQL supports the following types of instances:

    Instance TypeDefinitionArchitectureVisible in the Instance ListFeature
    Primary instance An instance that can be read from and written to High-availability edition Yes The primary instance can associate with read-only replicas to realize read/write separation.
    Read-only replica An instance that can only be read from Single-node read-only Yes
  • A read-only replica cannot exist on its own. Instead, it must be affiliated to a primary instance. Its data comes solely from syncing with the primary instance, and it must reside in the same region as the primary instance.
  • By default, up to six read-only replicas can be created for a primary instance. To create more than six read-only replicas, please submit a ticket.
  • Reference

    • For more information on the creation of and notes on the read-only replicas, please see Creating Read-only Replicas.
    • For more information on how to create and configure a read-only replica group (RO group), please see Managing RO Groups.