257ef9573f
Since blueprint return-alternate-hosts in Queens, the scheduler returns a primary selected host and some alternate hosts based on the max_attempts config option. The only reschedules we have are during server create and resize/cold migrate. The list of alternative hosts are passed down from conductor through compute and back to conductor on reschedule and if conductor gets a list of alternate hosts on reschedule it will not call the scheduler again. This means the RetryFilter is effectively useless now since it shouldn't ever filter out hosts on the first schedule attempt and because we're using alternates for reschedules, we shouldn't go back to the scheduler on a reschedule. As a result this change deprecates the RetryFilter and removes it from the default list of enabled filters. Change-Id: Ic0a03e89903bf925638fa26cca3dac7db710dca3
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: