062872bce0
A partner performing some testing recognized a case where if a request
is sent to the Ironic Conductor while it is in the process of starting,
and the request makes it into be processed, yet latter the operation
fails with errors such as NodeNotLocked exception. Notably they were
able to reproduce this by requesting the attachment or detachment of
a VIF at the same time as restarting the conductor.
In part, this condition is due to to the conductor being restarted
where the conductors table includes the node being restarted and
the webserver has not possibly had a chance to observe that the
conductor is in the process of restarting as the hash ring is
still valid.
In short - Incoming RPC requests can come in during the initialization
window and as such we should not remove locks while the conductor could
possibly already be receiving work.
As such, we've added a ``prepare_host`` method which initializes
the conductor database connection and removes the stale locks.
Under normal operating conditions, the database client is reused.
rhbz# 1847305
Change-Id: I8e759168f1dc81cdcf430f3e33be990731595ec3
(cherry picked from commit
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| devstack | ||
| doc | ||
| etc | ||
| ironic | ||
| playbooks | ||
| releasenotes | ||
| tools | ||
| zuul.d | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .stestr.conf | ||
| CONTRIBUTING.rst | ||
| LICENSE | ||
| README.rst | ||
| babel.cfg | ||
| bindep.txt | ||
| driver-requirements.txt | ||
| lower-constraints.txt | ||
| reno.yaml | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
README.rst
Ironic
Team and repository tags
Overview
Ironic consists of an API and plug-ins for managing and provisioning physical machines in a security-aware and fault-tolerant manner. It can be used with nova as a hypervisor driver, or standalone service using bifrost. By default, it will use PXE and IPMI to interact with bare metal machines. Ironic also supports vendor-specific plug-ins which may implement additional functionality.
Ironic 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.
Project resources
- Documentation: https://docs.openstack.org/ironic/latest
- Source: https://opendev.org/openstack/ironic
- Bugs: https://storyboard.openstack.org/#!/project/943
- Wiki: https://wiki.openstack.org/wiki/Ironic
- APIs: https://docs.openstack.org/api-ref/baremetal/index.html
- Release Notes: https://docs.openstack.org/releasenotes/ironic/
- Design Specifications: https://specs.openstack.org/openstack/ironic-specs/
Project status, bugs, and requests for feature enhancements (RFEs) are tracked in StoryBoard: https://storyboard.openstack.org/#!/project/943
For information on how to contribute to ironic, see https://docs.openstack.org/ironic/latest/contributor