How to Add Read-Only Nodes Limited Availability

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Read-only nodes let you place replicas of your cluster’s primary node in additional geographical regions to reduce latency for users in those regions. This differs from standby nodes which are exact copies of the primary that are automatically moved into place in the event of a primary node failure.

To add a read-only node:

  1. Click the name of the cluster and scroll to the bottom of its overview page.
  2. Follow the Add a read-only node link at the bottom of the page.
  3. Select the size, which must be equal to or larger than the primary node.
  4. Select the datacenter.
  5. Name the node
  6. Click Create a read-only node to start creation.