OpenStack Compute (Nova)
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Ildiko Vancsa 72ba18468e scheduler: add soft-(anti-)affinity weighers
ServerGroupSoftAffinityWeigher implements the soft-affinity
policy for server groups as it orders the hosts by the number
of instances running on them from the same group in decreasing
order.

ServerGroupSoftAntiAffinityWeigher implements the
soft-anti-affinity policy for server groups as it orders the
hosts by the number of instances running on them from the same
group in increasing order.

Both weigher assumes the the RequestSpec object refers to a valid
InstanceGroup object which has a populated members field. This
will be provided by the subsequent patch.

New configuration options added:
 * soft_affinity_weight_multiplier
 * soft_anti_affinity_multiplier

Add docs about the new weigher classes and change the function
name 'weigh_object' to '_weigh_object' in the Weights section
to match the code.

DocImpact

Co-Authored-By: Balazs Gibizer <balazs.gibizer@ericsson.com>

Implements: blueprint soft-affinity-for-server-group
Change-Id: I3f156d5e5df4d9642bb4b0ffac30a6288459ce61
2016-01-07 10:43:57 +01:00
api-guide/source Merge "Fix typo, ReST -> REST" 2016-01-05 21:52:14 +00:00
contrib Merge "changed quantum to neutron in vif-openstack" 2014-03-05 10:45:05 +00:00
devstack Merge "Remove skips for resize tests from tempest-dsvm-cells-rc" 2015-12-01 06:33:22 +00:00
doc scheduler: add soft-(anti-)affinity weighers 2016-01-07 10:43:57 +01:00
etc/nova Merge "remove /v1.1 from default paste.ini" 2016-01-05 09:14:02 +00:00
nova scheduler: add soft-(anti-)affinity weighers 2016-01-07 10:43:57 +01:00
plugins/xenserver Add upload/download vhd2 interfaces 2015-12-18 12:37:35 +00:00
releasenotes Merge "Disable the in tree EC2 API by default" 2016-01-05 21:53:09 +00:00
tools Merge "XenAPI: Fix race in rotate_xen_guest_logs" 2016-01-05 17:33:36 +00:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:34:39 +00:00
.gitignore Merge "Add reno for release notes management" 2015-11-13 16:24:51 +00:00
.gitreview Add .gitreview config file for gerrit. 2011-10-24 15:07:19 -04:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.testr.conf Add tox -e functional 2014-11-12 15:31:06 -05:00
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:37 +00:00
HACKING.rst add hacking check for config options location 2015-11-26 19:24:19 +01:00
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Add a maintainers file 2015-05-23 03:22:07 +10:00
README.rst Update links in README 2014-05-07 16:06:24 -07:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bandit.yaml Add bandit for security static analysis testing 2015-07-02 09:17:48 -07:00
openstack-common.conf Switch to the oslo_utils.fileutils 2015-07-24 14:10:44 +03:00
requirements.txt Updated from global requirements 2016-01-04 04:17:55 +00:00
run_tests.sh deprecate run_tests.sh 2015-12-14 16:38:34 -05:00
setup.cfg Nuke EC2 API from api-paste and remove wsgi support 2015-12-21 18:48:15 -05:00
setup.py Updated from global requirements 2015-09-17 16:41:48 +00:00
test-requirements.txt Updated from global requirements 2015-12-23 00:35:53 +00:00
tests-py3.txt Block more flaky py34 tests 2016-01-06 16:56:46 -05:00
tox.ini Stop explicitly running test discovery for py34 2016-01-05 11:35:34 -05:00

README.rst

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:

http://docs.openstack.org

For information about the different compute (hypervisor) drivers supported by Nova, read this page on the wiki:

https://wiki.openstack.org/wiki/HypervisorSupportMatrix

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:

http://bugs.launchpad.net/nova

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:

https://git.openstack.org/cgit/openstack/nova

Developers should also join the discussion on the mailing list, at:

http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev

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:

http://docs.openstack.org/developer/nova/

For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst file.

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