Spot Scale and Sizing Guidelines
These are broad guidelines for scale and sizing of your Rackspace Spot deployments. Please note that while we generally expect to achieve these scale and performance metrics, these are not guaranteed.
If you are experiencing any challenges with scale or performance at scale, the product team would like to hear from you. We are continuously investing in improving scale and performance, so please get in touch.
Spot Control Plane Scale
| Spot Control Plane Parameter | Current Scale |
|---|---|
| Number of Cloudspaces | 25 |
| Aggregate servers across all Cloudspaces | 1000 |
| Concurrent servers provisioned across all Cloudspaces | 50 |
Spot Kubernetes Control Plane Scale
| Kubernetes (Hosted) Control Plane | Specifications |
|---|---|
| Free Kubernetes Control Plane: apiserver & etcd | 1 apiserver, 1 etcd |
| Free Kubernetes Control Plane: # Nodes in a Cloudspace | 50 |
| Free Kubernetes Control Plane: Scales with number of nodes | Yes, upto 50 nodes |
| Highly available Kubernetes Control Plane: apiserver & etcd | 5 apiservers, 3 etcd |
| Highly available Kubernetes Control Plane: # Nodes in a Cloudspace | 150 |
| Highly available Kubernetes Control Plane: Scales with number of nodes | Yes, upto 150 nodes |
Spot Server Provisioning Performance
| Spot Server Provisioning Parameters | Specifications |
|---|---|
| Time to deploy Kubernetes control plane | ~1 minute |
| Time to pre-empt and reassign servers following an auction | 6 minutes notice period + time to provision server |
| Time to provision servers (A) Rackspace undercloud time to provision servers | 5-30 minutes (under-cloud v1) 3-10 minutes (under-cloud v2) |
| Time to provision servers (B) Spot time to attach provisioned servers to Kubernetes control plane | 5-15 minutes |
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