
With the removal of 'CachingScheduler' in Stein (19.0.0), the 'FilterScheduler' is the only in-tree scheduler provided by nova. The removal of the caching scheduler was motivated in good part because "more and more functionality within nova [now] relies on managing (sometimes complex) resource allocations in the placement service". This same argument applies for out-of-tree drivers. It's unlikely that there are users with out-of-tree drivers that have good placement integration and significantly outperform the default filter scheduler. As a result, it's probably time to close this extension point in favour of continued improvements on the filter scheduler and placement along with custom filters and weighters for the filter scheduler. Change-Id: Id65e0b16fe062509097b8e3f58eb81bfe1cc2bfa Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
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: