91f5af7ee7
The only in-tree filters that rely on HostState.instances are the affinity filters (and one of the weighers). And they don't even look at the values in the HostState.instances dict, just the keys (which are the instance uuids for the instances on the host). So rather than pull the full instance objects, we can just get the list of instance uuids off the host and fake out the object. Custom filters/weighers will still be able to lazy-load fields on the Instance objects in HostState.instances if needed, but it will mean a performance penalty due to the round trip to the database per instance, per host. Out of tree filters/weighers are encouraged to be contributed upstream. Related to blueprint put-host-manager-instance-info-on-a-diet Related-Bug: #1737465 Change-Id: I766bb5645e3b598468d092fb9e4f18e720617c52
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: