OpenStack Compute (Nova)
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Matt Riedemann 1b02166528 Restore soft-deleted compute node with same uuid
There is a unique index on the compute_nodes.uuid column which
means we can't have more than one compute_nodes record in the
same DB with the same UUID even if one is soft deleted because
the deleted column is not part of that unique index constraint.

This is a problem with ironic nodes where the node is 1:1 with
the compute node record, and when a node is undergoing maintenance
the driver doesn't return it from get_available_nodes() so the
ComputeManager.update_available_resource periodic task (soft)
deletes the compute node record, but when the node is no longer
under maintenance in ironic and the driver reports it, the
ResourceTracker._init_compute_node code will fail to create the
ComputeNode record again because of the duplicate uuid.

This change handles the DBDuplicateEntry error in compute_node_create
by finding the soft-deleted compute node with the same uuid and
simply updating it to no longer be (soft) deleted.

Closes-Bug: #1839560

Change-Id: Iafba419fe86446ffe636721f523fb619f8f787b3
(cherry picked from commit 8b007266f4)
2019-08-15 12:03:31 -04:00
api-guide/source Documentation for bandwidth support 2019-03-18 11:24:56 +01:00
api-ref/source Block swap volume on volumes with >1 rw attachment 2019-05-30 20:59:55 +00:00
devstack Remove the CachingScheduler 2018-10-18 17:55:36 -04:00
doc Merge "Add 'path' query parameter to console access url" into stable/stein 2019-07-24 20:29:06 +00:00
etc/nova Add oslo.privsep to config-generator list 2019-03-01 16:43:21 +00:00
gate update gate test for removal of force evacuate 2019-03-08 16:31:31 +00:00
nova Restore soft-deleted compute node with same uuid 2019-08-15 12:03:31 -04:00
playbooks/legacy OpenDev Migration Patch 2019-04-19 19:47:27 +00:00
releasenotes Replace non-nova server fault message 2019-08-06 10:48:49 -04:00
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 19:47:27 +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 OpenDev Migration Patch 2019-04-19 19:47:27 +00:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Document how to make tests log at DEBUG level 2019-02-13 20:46:01 +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 Merge "Require python-ironicclient>=2.7.0" 2019-03-22 02:55:13 +00:00
requirements.txt Merge "Convert driver supported capabilities to compute node provider traits" 2019-03-05 09:50:12 +00:00
setup.cfg Update mailinglist from dev to discuss 2018-12-05 09:44:35 +08:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt Require python-ironicclient>=2.7.0 2019-03-12 15:10:11 -04:00
tox.ini Update UPPER_CONSTRAINTS_FILE for stable/stein 2019-03-22 03:50:05 +00:00

README.rst

Team and repository tags

image

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: