OpenStack Compute (Nova)
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Sahid Orentino Ferdjaoui d52ceaf269 virt: reserved number of mempages on compute host
Users need to mark as reserved some amount of pages for third party
components.

The most common use case for using huge/large pages is NFV. In the
current state of that feature we can't guarantee the necessary amount
of pages to allow OVS-DPDK to run properly on the compute node, which
result in the instance failing to boot on a well selected
compute-node. OVS-DPDK needs 1 GB hugepages reserved. Since Nova does
not take into account that page reserved for OVS-DPDK it results in
the process not being able to acquire the necessary memory which
results in a failed boot.

This commit adds a new option 'reserved_huge_pages' which takes a list
of string format to select on which host NUMA nodes and from which
pagesize we want to reserve a certain amount of pages. It also updates
NUMAPageTopology to contain a reserved memory pages attribute, which
helps compute the available pages size on host for scheduling/claiming
resources.

Change-Id: Ie04d6362a4e99dcb2504698fc831a366ba746b44
Closes-Bug: #1543149
2016-05-12 06:32:00 -04:00
api-guide/source [doc] fix 5 typos 2016-04-28 20:40:18 +09:00
api-ref Merge "method verification of os-server-external-events" 2016-05-11 21:40:50 +00:00
contrib Merge "changed quantum to neutron in vif-openstack" 2014-03-05 10:45:05 +00:00
devstack Rely on devstack to skip rescue tests for cells v1 2016-04-05 10:39:04 -04:00
doc Add api-sample test for showing quota detail 2016-05-09 10:49:22 +08:00
etc/nova Merge "Config options: completing centralize neutron options" 2016-05-09 13:14:10 +00:00
nova virt: reserved number of mempages on compute host 2016-05-12 06:32:00 -04:00
plugins/xenserver Merge "plugins/xenserver: Resolve PEP8 issues" 2016-03-10 14:27:09 +00:00
releasenotes virt: reserved number of mempages on compute host 2016-05-12 06:32:00 -04:00
tools Config options: Centralize compute options 2016-04-20 19:00:25 +00:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:34:39 +00:00
.gitignore Add api-ref/build/* to .gitignore 2016-04-06 12:51:27 -04:00
.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
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
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:37 +00:00
HACKING.rst Merge "Add a hacking check for test method closures" 2016-04-04 11:08:43 +00:00
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
requirements.txt Drop paramiko < 2 compat code 2016-05-10 12:01:22 -05:00
run_tests.sh Add description on how to run ./run_test.sh -8 2016-01-11 13:17:04 +00:00
setup.cfg Added server tags support in nova-api 2016-04-06 16:38:21 +03:00
setup.py Updated from global requirements 2015-09-17 16:41:48 +00:00
test-requirements.txt Updated from global requirements 2016-04-28 16:15:24 +00:00
tests-py3.txt Merge "Fixes hex decoding related unit tests" 2016-04-11 00:35:03 +00:00
tox.ini Final warnings removals for api-ref 2016-04-20 11:25:30 -04:00

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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