OpenStack Compute (Nova)

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melanie witt 456b3d68bc [stable only] Handle quota usage during create/delete races There is a race during an instance delete while booting where, if the build request was found, there is still a chance we can fail to lookup the instance record and if so, we need to go ahead and commit the quota decrement reservations. We're currently skipping the quotas.commit() if we don't find the instance record. I believe this is a regression as of commit `361b883831`. There are two reasons why we may fail to find the instance record after we successfully found the build request: a) Conductor didn't create the instance record yet. b) Conductor deleted the instance record after finding the build request was deleted by us (the API) In either case, conductor doesn't do anything to decrement quota usage so we need to do it in the compute/api. There is a second race where we find the build request and succeed in looking up the instance record but then fail to delete the instance record (instance.destroy() raises InstanceNotFound). This can happen if c) Conductor deleted the instance record after finding the build request was deleted by us but after we looked up the instance d) If we (the API) are racing with another delete request If c) happens, we need to quotas.commit(). If d) happens, we need to quotas.rollback(). Since we can't know which case it was when we get InstanceNotFound, we'll do a quotas.rollback() to get rid of the reservation record and force a refresh of quota usages to make sure we end with correct usage in case rollback was not the right choice. Closes-Bug: #1783613 Change-Id: I4d492dcad193ff0b1202dcae97954cc65b75c109		2018-08-08 23:02:56 +00:00
api-guide/source	Removes unnecessary utf-8 encoding	2016-12-20 10:27:01 +07:00
api-ref/source	Add policy rule to block image-backed servers with 0 root disk flavor	2018-06-18 14:16:11 -04:00
contrib	Merge "changed quantum to neutron in vif-openstack"	2014-03-05 10:45:05 +00:00
devstack	Skip test_rebuild_server_in_error_state for cells v1	2017-08-22 18:42:29 +00:00
doc	Merge "Revert "Proper error handling by _ensure_resource_provider"" into stable/ocata	2018-04-20 05:21:11 +00:00
etc/nova	Fix doc generation warnings	2017-03-06 18:51:19 +09:00
gate	move gate hooks to gate/	2017-01-04 11:05:16 +00:00
nova	[stable only] Handle quota usage during create/delete races	2018-08-08 23:02:56 +00:00
playbooks/legacy/nova-live-migration	Migrate tempest-dsvm-multinode-live-migration job in-tree	2018-05-10 11:17:39 -04:00
plugins/xenserver	XenAPI Remove useless files when use os-xenapi lib	2017-01-10 18:06:17 -08:00
releasenotes	Add policy rule to block image-backed servers with 0 root disk flavor	2018-06-18 14:16:11 -04:00
tools	Prepare for using standard python tests	2017-02-09 18:01:02 +00:00
.coveragerc	Remove nova/openstack/* from .coveragerc	2016-10-12 16:20:49 -04:00
.gitignore	doc: Integrate oslo_policy.sphinxpolicygen	2016-10-20 10:31:01 +01:00
.gitreview	Update .gitreview for stable/ocata	2017-02-03 19:10:42 +00:00
.mailmap	Add mailmap entry	2014-05-07 12:14:26 -07:00
.testr.conf	[placement] Adjust the name of the gabbi tests	2016-09-20 19:14:44 +00:00
.zuul.yaml	Migrate tempest-dsvm-multinode-live-migration job in-tree	2018-05-10 11:17:39 -04:00
babel.cfg	Get rid of distutils.extra.	2012-02-08 19:30:39 -08:00
bindep.txt	Update bindep.txt for doc builds	2017-11-21 20:09:30 +00:00
CONTRIBUTING.rst	Workflow documentation is now in infra-manual	2014-12-05 03:30:37 +00:00
HACKING.rst	hacking: Use uuidutils or uuidsentinel to generate UUID	2016-11-29 11:49:24 +05:30
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	Show team and repo badges on README	2016-11-25 13:55:29 +01:00
requirements.txt	Updated from global requirements	2017-08-09 01:01:23 +00:00
run_tests.sh	Add description on how to run ./run_test.sh -8	2016-01-11 13:17:04 +00:00
setup.cfg	Fix doc generation warnings	2017-03-06 18:51:19 +09:00
setup.py	Updated from global requirements	2015-09-17 16:41:48 +00:00
test-requirements.txt	Updated from global requirements	2017-01-26 18:48:41 +00:00
tests-functional-py3.txt	Remove invalid URL in gabbi tests	2017-01-17 21:10:45 +00:00
tests-py3.txt	Enable virt.vmwareapi test cases on Python	2017-01-18 11:14:24 +08:00
tox.ini	Update UPPER_CONSTRAINTS_FILE for stable/ocata	2017-02-03 19:10:44 +00:00

README.rst

Team and repository tags

OpenStack Nova

OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer and OpenStack Ironic.

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.

API

To learn how to use Nova's API, consult the documentation available online at:

http://developer.openstack.org/api-guide/compute/ http://developer.openstack.org/api-ref/compute/

For more information on OpenStack APIs, SDKs and CLIs, please see:

http://www.openstack.org/appdev/ http://developer.openstack.org/

Operators

To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:

http://docs.openstack.org

For information about the different compute (hypervisor) drivers supported by Nova, please read:

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

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

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

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/