2bb4527228
There is a race condition in nova-compute with the ironic virt driver as nodes get rebalanced. It can lead to compute nodes being removed in the DB and not repopulated. Ultimately this prevents these nodes from being scheduled to. The issue being addressed here is that if a compute node is deleted by a host which thinks it is an orphan, then the resource provider for that node might also be deleted. The compute host that owns the node might not recreate the resource provider if it exists in the provider tree cache. This change fixes the issue by clearing resource providers from the provider tree cache for which a compute node entry does not exist. Then, when the available resource for the node is updated, the resource providers are not found in the cache and get recreated in placement. Change-Id: Ia53ff43e6964963cdf295604ba0fb7171389606e Related-Bug: #1853009 Related-Bug: #1841481
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, 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: