Configuration | Value | Description ------------------------------------|------------|------------------------ `SIZE` | `text` | The size of the resource allocations for the cluster. Available sizes are:
  • 25cc
  • 50cc
  • 100cc
  • 200cc
  • 300cc
  • 400cc
  • 600cc
  • 800cc
  • 1200cc
  • 1600cc
  • 3200cc
  • 6400cc
  • 128C
  • 256C
  • 512C


`REPLICATION FACTOR` | `int` | The number of replicas to provision for the cluster. Each replica of the cluster provisions a new pool of compute resources to perform exactly the same computations on exactly the same data. Clusters that contain sources or sinks can only have a replication factor of `0` or `1`. For more information, see [Replication factor considerations](#replication-factor).
Default: `1` `INTROSPECTION INTERVAL` | [`interval`](/sql/types/interval/) | The interval at which to collect introspection data. See [Troubleshooting](/ops/troubleshooting) for details about introspection data. The special value `0` entirely disables the gathering of introspection data.
Default: `1s` `INTROSPECTION DEBUGGING` | `bool` | Indicates whether to introspect the gathering of the introspection data.
Default: `FALSE` `MANAGED` | `bool` | Whether to automatically manage the cluster's replicas based on the configured size and replication factor.
If `FALSE`, enables the use of the deprecated [`CREATE CLUSTER REPLICA`](/sql/create-cluster-replica) command.
Default: `TRUE` `SCHEDULE` | [`MANUAL`,`ON REFRESH`] | The [scheduling type](/sql/create-cluster/#scheduling) for the cluster.
Default: `MANUAL`