e6de054235
This changes the method used to poll xenserver for bandwidth data. The reccomended way of collecting such data from xenserver (namely the RRD files provided by the hosts) do not seem to be reliable, they will sometimes be correct, often will be signifigantly under (> 10%), and occasionally will show artifacts, such as phantom 4gb bandwidth 'spikes'. This patch changes that to use the much simpler method of simply polling the byte counters on the VIF network devices on the host. (We have old non-nova code that does that on xenserver, and that method is known to work). This should also make it much easier for other hypervisors other than xenserver to implement bandwidth polling, as polling the counters is a rather more universal method. Fixes bug 1055737 Change-Id: I6a280d8bbfcc74914f888b11bc09349a270a5f58
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:
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:
Changes to OpenStack Nova should be submitted for review via the Gerrit tool, following the workflow documented at:
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