
We do not yet support live migrating an instance across cells. This change handles two cases for live migration: 1. The destination host is forced so the scheduler is bypassed. In this case we directly compare the source cell against the destination cell and fail if they are not the same with a MigrationPreCheckError. 2. If no destination host is specified, or it's not forced, we update the RequestSpec sent to the scheduler so it will restrict the compute nodes it pulls from the same cell that the instance lives in. If a host is requested in this case but it's in a different cell, it would result in a NoValidHost error from the scheduler. Change-Id: I66fc72d402ac118270a835cf929fe1ea387d78cd Closes-Bug: #1712008
Team and repository tags
OpenStack Nova
OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer, OpenStack Ironic and PowerVM.
Use the following resources to learn more.
API
To learn how to use Nova's API, consult the documentation available online at:
For more information on OpenStack APIs, SDKs and CLIs in general, refer to:
Operators
To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:
In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at:
Developers
For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst.
Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests.
Further developer focused documentation is available at:
Other Information
During each Summit and Project Team Gathering, we agree on what the whole community wants to focus on for the upcoming release. The plans for nova can be found at: