OpenStack cascading solution

Overview

OpenStack cascading solution is designed for large scale distributed cloud.

• The parent OpenStack expose standard OpenStack API
• The parent OpenStack manage many child OpenStacks by using standard OpenStack API
• Each child OpenStack functions as a EC2 like available zone and is hidden by the parent OpenStack

• Cascading OpenStack: the parent OpenStack, providing API and scheduling and orchestration of Cascaded OpenStacks
• Cascaded OpenStack: the child OpenStack, provisioning the VM, Volume and virtual Networking resources

Challenges when building large scale cloud

To build large scale OpenStack based cloud, for example, the cloud includes 1 million VMs or 100k hosts. There are big challenges

Naturally, there are two ways to do that: 1. scale up a single monolithic OpenStack region, but

• It’s a big challenge for a single OpenStack to manage scale for example 1 million VMs or 100K hosts.
• Can not obtain real fault isolation area like EC2’s available zone, all of the cloud are tighten up into one OpenStack because of shareing RPC message bus and database.
• Single huge monolithic system bring high risk with OAM & trouble shooting, and big challenge for even the most skilled Op team to handle SW rolling upgrade and configuration changes.
• Difficult for heterogeneous vendor’s infrastructure integration, multi-vendor's infrastructure co-existing is high demand for large scale cloud

2. setup hundreds of OpenStack Regions with discrete API endpoint, but

• Have to buy or develop his own cloud management platform to integrate the discrete cloud into one cloud, and also, OpenStack API ecosystem is lost.
• Or, leave customer with splitted resource island without any association…

Use Case

[tbd]

Architecture

[tbd]

Meetings

[tbd]

Blueprints

The blueprints are: [tbd]

Proof of Concept implementation and demo

[tbd]

How To Install and Test

[tbd]

Repository

[tbd]

Last update

July 2, 2014