a7e2a4114a
We are currently trying to support live upgrades from havana to icehouse. This change is required to make that happen. In a live upgrade situation, you have icehouse nova infrastructure, with a mix of havana and icehouse compute nodes as you roll through and upgrade them. While in this situation, the havana compute nodes must be able to accept 3.0 messages. Accepting 3.0 messages is trivial to do and extremely low risk. It does not change the behavior of a havana-only deployment at all. The only additions is some pass-through code to the current compute manager. This code will only get hit during a live upgrade situation. Note that there is one other change needed to complete this. With only this patch, live upgrades are supported, but any operations that require compute nodes to talk to each other will not work. This includes resizes and migrates. That would be unfortunate, since live migrations are something that people *definitely* want to be able to do during an upgrade procedure. The additional changes needed to allow resizes and migrates during live upgrades are included in another patch. Partial-bug: #1258253 Change-Id: Ia801609b6b3fe88e0d0b16f4c0d37bf25dbfa842 |
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contrib | ||
doc | ||
etc/nova | ||
nova | ||
plugins/xenserver | ||
smoketests | ||
tools | ||
.coveragerc | ||
.gitignore | ||
.gitreview | ||
.mailmap | ||
.testr.conf | ||
babel.cfg | ||
CONTRIBUTING.rst | ||
HACKING.rst | ||
LICENSE | ||
MANIFEST.in | ||
openstack-common.conf | ||
pylintrc | ||
README.rst | ||
requirements.txt | ||
run_tests.sh | ||
setup.cfg | ||
setup.py | ||
test-requirements.txt | ||
tox.ini |
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:
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
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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