Difference between revisions of "MultiClusterZones"

Revision as of 13:31, 31 January 2011

• Launchpad Entry: NovaSpec:multi-cluster-in-a-region
• Created:
• Contributors: SandyWalsh

Summary

Older notes: http://etherpad.openstack.org/multicluster and http://etherpad.openstack.org/multicluster2

Release Note

Zones permit Nova deployments to separate groups of hosts into "Zones". Not all Zones need to contain Hosts, but rather, they may contain other Zones. This will permit finer-grained organizational structures. This proposal also allows for multiple root nodes (top-level Zones) so business units can partition the hosts in different ways for different purposes (i.e. geographical zones vs. functional zones).

Rationale

In order to scale Nova to 1mm host machines and 60mm guest instances we need a scheme to divide-and-conquer the effort.

User stories

Assumptions

Design

You can have subsections that better describe specific parts of the issue.

Implementation

This section should describe a plan of action (the "how") to implement the changes discussed. Could include subsections like:

Code Changes

Code changes should include an overview of what needs to change, and in some cases even the specific details.

Migration

Include:

• data migration, if any
• redirects from old URLs to new ones, if any
• how users will be pointed to the new way of doing things, if necessary.

Test/Demo Plan

This need not be added or completed until the specification is nearing beta.

Unresolved issues

This should highlight any issues that should be addressed in further specifications, and not problems with the specification itself; since any specification with problems cannot be approved.

BoF agenda and discussion

Use this section to take notes during the BoF; if you keep it in the approved spec, use it for summarising what was discussed and note any options that were rejected.