Balazs Gibizer efd61188c1 Deprecate unlimited compute actions
We already deprecated the unlimited max_concurrent_live_migrations
config value and now we do the same for max_concurrent_builds and
max_concurrent_snapshots as well. The reason is similar.
* The unlimited meaning was a lie, it was limited by other constructs in
  the code. For these option the limit was the size of the RPC executor
  defaulted to 64.
* In native threading mode having unlimited concurrent tasks is
  unfeasible due to the memory cost of native threads for each task.

The deprecation is done in a way that in eventlet mode we keep a similar
behavior as before but in native threading mode we enforce a strict
maximum even if unlimited is requested.

Change-Id: Ibbf76c2c85729820035c9791719bf2c864bce12b
Signed-off-by: Balazs Gibizer <gibi@redhat.com>
2026-02-24 16:28:00 +01:00
2025-09-02 18:06:31 +05:30
2026-02-24 16:28:00 +01:00
2025-09-08 09:35:47 -07:00
2023-11-10 20:12:31 +00:00
2024-08-31 18:05:41 +09:00
2019-04-19 19:45:52 +00:00
2026-01-21 10:56:13 +00:00
2017-11-24 16:51:12 -05:00
2026-01-20 23:14:18 +09:00
2017-09-07 15:42:31 +02:00
2026-01-29 11:57:04 +01:00
2025-03-19 12:30:41 +00:00
2024-01-12 17:47:49 +09:00
2024-05-01 01:30:04 +09:00
2026-01-26 20:26:56 +01:00

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

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

To understand better the processes that the team is using, please refer to the
`Process document <https://docs.openstack.org/nova/latest/contributor/process.html>`__.

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/
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