About Instances in OCI Oracle Cloud Infrastructure

You can create Oracle Event Hub Cloud Service — Dedicated Clusters and Topics in Oracle Cloud Infrastructure.

See Prerequisites for Oracle Platform Services on Oracle Cloud Infrastructure in the Oracle Cloud Infrastructure documentation for details of the prerequisites.

The platform that your Cluster provides in either type of infrastructure is substantially the same. A few differences exist in the underlying infrastructure components and in the supported capabilities. Awareness of these differences will help you choose an appropriate infrastructure when creating a Cluster.

  • Regions and Availability Domains: While creating a Cluster, you select a region in Oracle Cloud Infrastructure or Oracle Cloud Infrastructure Classic. If you select a region in Oracle Cloud Infrastructure, then you also select an Availability Domain. A region in Oracle Cloud Infrastructure has multiple isolated availability domains, each with separate power and cooling. The availability domains within a region are interconnected using a low-latency network.

  • Compute shapes: The range of compute shapes that you can select from when creating a Cluster is different for Oracle Cloud Infrastructure and Oracle Cloud Infrastructure Classic.

  • Scaling Clusters & nodes: In Oracle Cloud Infrastructure, you can scale the Cluster’s compute nodes.

  • Network access to Clusters: Regardless of the infrastructure that you create your Cluster in, the rules to provide network access to the deployment are pre configured for you. The interfaces that you use to manage these rules depend on the infrastructure that the deployment is created in:

    • For deployments in Oracle Cloud Infrastructure, you configure the rules, called security rules, in the Oracle Cloud Infrastructure interfaces.

    • For deployments in Oracle Cloud Infrastructure Classic, you configure the rules, called access rules, in the Oracle Event Hub Cloud Service — Dedicated Oracle Event Hub Cloud Service — Dedicated Cluster. Note that these access rules prohibit access by default (with the exception of SSH access on port 22), and you must enable them to provide access to other ports.

  • Subnets and IP networks: In Oracle Cloud Infrastructure, you must attach each Cluster to a subnet, which is a part of a virtual cloud network that you create in Oracle Cloud Infrastructure. In Oracle Cloud Infrastructure Classic, you can optionally attach a Cluster to an IP network that you define beforehand.

  • IP reservations: For the Clusters that you create in Oracle Cloud Infrastructure Classic, you can assign pre-reserved public IP addresses to the Cluster nodes. IP reservations aren’t supported for Clusters created in Oracle Cloud Infrastructure.

  • Load balancing and User Authentication: Oracle Event Hub Cloud Service — Dedicated does not support Load balancing and User Authentication in Oracle Cloud Infrastructure