972a86d61f
At present QEMU will raise an error to libvirt when a device_del request
is made for a device that has already partially detached through a
previous request. This is outlined in more detail in the following
downstream Red Hat QEMU bug report:
Get libvirtError "Device XX is already in the process of unplug" [..]
https://bugzilla.redhat.com/show_bug.cgi?id=1878659
Within Nova we can actually ignore this error and allow our existing
retry logic to attempt again after a short wait, hopefully allowing the
original request to complete removing the device from the domain.
This change does this and should result in one of the following
device_del requests raising a VIR_ERR_DEVICE_MISSING error from libvirt.
_try_detach_device should then translate that libvirt error into a
DeviceNotFound exception which is itself then ignored by all
detach_device_with_retry callers and taken to mean that the device has
detached successfully.
Closes-Bug: #1923206
Change-Id: I0e068043d8267ab91535413d950a3e154c2234f7
(cherry picked from commit 0a7d3794c6)
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: