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Read Replica

This section explains how to configure read replicas for EPAS(DBaaS).

Creating Read Replica

You can create read replicas to scale read operations and improve performance.

Note
Read replicas are asynchronously replicated from the primary database. There may be a slight delay in data synchronization.

To create a read replica, follow these steps:

  1. Click All Services > Database > EPAS(DBaaS) menu. You will be directed to the Service Home page for EPAS(DBaaS).
  2. On the Service Home page, click the EPAS(DBaaS) menu. You will be directed to the EPAS(DBaaS) List page.
  3. On the EPAS(DBaaS) List page, click the primary database resource you want to create a replica for. You will be directed to the EPAS(DBaaS) Detail page.
  4. Click the Create Read Replica button. The Create Read Replica popup will appear.
  5. Enter the following information:
    • Replica Name: Name of the read replica
    • Server Type: Server type for the replica
    • Storage: Storage configuration for the replica
  6. Click the Confirm button to create the read replica.

Configuring Read Replica

You can configure the settings of a read replica.

Modifying Read Replica

To modify a read replica, follow these steps:

  1. Click All Services > Database > EPAS(DBaaS) menu. You will be directed to the Service Home page for EPAS(DBaaS).
  2. On the Service Home page, click the EPAS(DBaaS) menu. You will be directed to the EPAS(DBaaS) List page.
  3. On the EPAS(DBaaS) List page, click the read replica resource you want to modify. You will be directed to the EPAS(DBaaS) Detail page.
  4. Click the Modify button. The Modify Read Replica popup will appear.
  5. Modify the settings and click the Confirm button.

Promoting Read Replica

You can promote a read replica to a standalone primary database.

Caution
Promoting a read replica will break the replication relationship with the primary database. The promoted replica will become a standalone database and will no longer receive updates from the primary.

To promote a read replica, follow these steps:

  1. Click All Services > Database > EPAS(DBaaS) menu. You will be directed to the Service Home page for EPAS(DBaaS).
  2. On the Service Home page, click the EPAS(DBaaS) menu. You will be directed to the EPAS(DBaaS) List page.
  3. On the EPAS(DBaaS) List page, click the read replica resource you want to promote. You will be directed to the EPAS(DBaaS) Detail page.
  4. Click the Promote button. The Promote Read Replica popup will appear.
  5. Review the promotion information and click the Confirm button to promote the replica.

Deleting Read Replica

You can delete a read replica.

Caution
Deleting a read replica will permanently delete all data and cannot be recovered.

To delete a read replica, follow these steps:

  1. Click All Services > Database > EPAS(DBaaS) menu. You will be directed to the Service Home page for EPAS(DBaaS).
  2. On the Service Home page, click the EPAS(DBaaS) menu. You will be directed to the EPAS(DBaaS) List page.
  3. On the EPAS(DBaaS) List page, click the read replica resource you want to delete. You will be directed to the EPAS(DBaaS) Detail page.
  4. Click the Delete button. The Delete Read Replica popup will appear.
  5. Click the Confirm button to delete the read replica.
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