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OpenStack Compute (Nova)
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Stephen Finucane 1a4a521fef test_rpc: Stop f****** with global state 
We're occasionally seeing stacktraces like this in our tests:

  Fatal Python error: Cannot recover from stack overflow.

  Current thread 0x00007fe66549f740 (most recent call first):
    File "...nova/.tox/py36/lib/python3.6/site-packages/oslo_config/cfg.py", line 2614 in _get
    File "...nova/.tox/py36/lib/python3.6/site-packages/oslo_config/cfg.py", line 2183 in __getattr__
    File "...nova/.tox/py36/lib/python3.6/site-packages/oslo_config/cfg.py", line 2614 in _get
    File "...nova/.tox/py36/lib/python3.6/site-packages/oslo_config/cfg.py", line 2183 in __getattr__
    File "...nova/.tox/py36/lib/python3.6/site-packages/oslo_config/cfg.py", line 2614 in _get
    ...

From a look at the oslo.config source, this seems to be occurring
because 'ConfigOpts.__cache' is somehow undefined, which results in the
'_get' method attempting to call '__getattr__' [1], which calls '_get'
[2], which calls '__getattr__' and so on.

The exact reason this is happening isn't clear, but what is clear is
that how we handle global config options in the tests that are failing
is very strange and potentially subject to race conditions. We have a
clear pattern for mocking everything and anything - the mock module -
and we should be using this here. Start doing so, reworking a lot of the
tests in the process, in order to avoid messing with oslo.config and
triggering the issue entirely.

[1] https://github.com/openstack/oslo.config/blob/6.8.1/oslo_config/cfg.py#L2614
[2] https://github.com/openstack/oslo.config/blob/6.8.1/oslo_config/cfg.py#L2183

Change-Id: I468cef94185a1b59f379ca527050450e03664c67
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
Closes-Bug: #1825435
 		2019-04-26 12:21:16 +01:00
api-guide/source Documentation for bandwidth support 2019-03-18 11:24:56 +01:00
api-ref/source Remove '/os-cells' REST APIs 2019-04-16 18:26:13 +01:00
devstack Merge "Remove cells v1 jobs" 2019-04-15 20:16:15 +00:00
doc Remove 'nova-manage cell' commands 2019-04-16 18:26:17 +01:00
etc/nova Add oslo.privsep to config-generator list 2019-03-01 16:43:21 +00:00
gate Pass --nic when creating servers in evacuate integration test script 2019-04-01 09:58:01 -04:00
nova test_rpc: Stop f****** with global state 2019-04-26 12:21:16 +01:00
playbooks/legacy OpenDev Migration Patch 2019-04-19 19:45:52 +00:00
releasenotes Remove 'nova-manage cell' commands 2019-04-16 18:26:17 +01:00
tools Make Xen code py3-compatible 2018-08-10 20:04:19 +00:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore Remove Placement API reference 2018-11-28 03:38:41 +00:00
.gitreview OpenDev Migration Patch 2019-04-19 19:45:52 +00:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.stestr.conf Finish stestr migration 2017-11-24 16:51:12 -05:00
.zuul.yaml Don't run tempest/devstack jobs on nova/test.py only changes 2019-04-25 10:29:45 -04:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Hacking N362: Don't abbrev/alias privsep import 2019-04-04 20:42:43 +00:00
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Fix broken URLs 2017-09-07 15:42:31 +02:00
README.rst Docs: modernise links 2018-03-24 20:27:11 +08:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Merge "Bindep does not catch missing libpcre3-dev on Ubuntu" 2018-02-14 07:31:09 +00:00
lower-constraints.txt Bump to hacking 1.1.0 2019-04-12 16:23:49 +01:00
requirements.txt Uncap jsonschema 2019-04-12 10:14:18 +10:00
setup.cfg Merge "Remove 'nova-cells' service" 2019-04-16 08:25:34 +00:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt Bump to hacking 1.1.0 2019-04-12 16:23:49 +01:00
tox.ini Merge "Bump to hacking 1.1.0" 2019-04-16 08:25:27 +00:00

README.rst

Team and repository tags

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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, OpenStack Ironic and PowerVM.

Use the following resources to learn more.

API

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

For more information on OpenStack APIs, SDKs and CLIs in general, refer to:

Operators

To learn how to deploy and configure 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

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:

Other Information

During each Summit and Project Team Gathering, we agree on what the whole community wants to focus on for the upcoming release. The plans for nova can be found at: