melanie witt c095cfe04e tests: Use GreenThreadPoolExecutor.shutdown(wait=True)
We are still having some issues in the gate where greenlets from
previous tests continue to run while the next test starts, causing
false negative failures in unit or functional test jobs.

This adds a new fixture that will ensure
GreenThreadPoolExecutor.shutdown() is called with wait=True, to wait
for greenlets in the pool to finish running before moving on.

In local testing, doing this does not appear to adversely affect test
run times, which was my primary concern.

As a baseline, I ran a subset of functional tests in a loop
until failure without the patch and after 11 hours, I got a failure
reproducing the bug. With the patch, running the same subset of
functional tests in a loop has been running for 24 hours and has not
failed yet.

Based on this, I think it may be worth trying this out to see if it
will help stability of our unit and functional test jobs. And if it
ends up impacting test run times or causes other issues, we can
revert it.

Partial-Bug: #1946339

Change-Id: Ia916310522b007061660172fa4d63d0fde9a55ac
2023-05-17 00:57:37 +00:00
2019-04-19 19:45:52 +00:00
2017-11-24 16:51:12 -05:00
2023-05-10 17:54:38 -07:00
2022-05-06 08:51:15 +02:00
2017-09-07 15:42:31 +02:00
2022-08-02 15:31:19 +02:00
2023-02-01 17:00:03 +00:00
2017-03-02 11:50:48 +00:00
2023-04-05 08:18:55 -07:00

==============
OpenStack Nova
==============

.. image:: https://governance.openstack.org/tc/badges/nova.svg
    :target: https://governance.openstack.org/tc/reference/tags/index.html

.. Change things from this point on


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 and OpenStack Ironic.

Use the following resources to learn more.

API
---

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

- `Compute API Guide <https://docs.openstack.org/api-guide/compute/>`__
- `Compute API Reference <https://docs.openstack.org/api-ref/compute/>`__

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

- `OpenStack for App Developers <https://www.openstack.org/appdev/>`__
- `Development resources for OpenStack clouds
  <https://developer.openstack.org/>`__

Operators
---------

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

- `OpenStack Nova <https://docs.openstack.org/nova/>`__

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:

- `Bug Tracker <https://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:

- `Official Nova Documentation <https://docs.openstack.org/nova/>`__
- `Official Client Documentation
  <https://docs.openstack.org/python-novaclient/>`__

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:

- `Nova Specs <http://specs.openstack.org/openstack/nova-specs/>`__

.. _Summit: https://www.openstack.org/summit/
.. _Project Team Gathering: https://www.openstack.org/ptg/
S
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