Read Replicas

A read replica is configured in the same way as a standard mirror. The distinction is primarily in how a read replica is used. Since a read replica is never used as a primary, it does not store any checkpoint metadata.

Procedure
1. Create your primary grid, and add it to the gridset.
2. Create your read replica, disabling checkpoint journals.

   tibdg -r http://rs0:8080 grid create checkpoint_journals=disabled readReplicaGrid

3. Add copysets, nodes, and state keepers to the new data grid.
4. Wait for checkpoints to be mirrored.
5. Run read-only operations against the new data grid.