3a89638691
Setting up networks and allocating IP addresses has the potential to take an undesirable amount of time, blocking the build of a new instance. We can parallelize some work by querying for this information *while* a new instance is being provisioned in the virt driver. This adds a wrapper around the NetworkInfo model which allows one to query for network information in a greenthread. When a code path is hit that actually needs the network information, it waits for the greenthread to finish, if it hasn't already. Network allocation will only be async for virt drivers that accept this NetworkInfo model. Other drivers that expect the legacy format end up waiting for the operation to complete before driver.spawn is called. Implements blueprint async-network-alloc Change-Id: I389f939b9a36bc20b3b66e98d006d694622bd963
OpenStack Nova README
OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of virtualization technologies, including KVM, Xen, LXC, VMware, and more. In addition to its native API, it includes compatibility with the commonly encountered Amazon EC2 and S3 APIs.
OpenStack Nova is distributed under the terms of the Apache License, Version 2.0. The full terms and conditions of this license are detailed in the LICENSE file.
Nova primarily consists of a set of Python daemons, though it requires and integrates with a number of native system components for databases, messaging and virtualization capabilities.
To keep updated with new developments in the OpenStack project follow @openstack on Twitter.
To learn how to deploy OpenStack Nova, consult the documentation available online at:
For information about the different compute (hypervisor) drivers supported by Nova, read this page on the wiki:
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 wishing to work on the OpenStack Nova project should always base their work on the latest Nova code, available from the master GIT repository at:
Developers should also join the discussion on the mailing list, at:
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:
For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst file.
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