nova/releasenotes/notes/libvirt-event-based-device-...

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---
fixes:
- |
To fix `device detach issues`__ in the libvirt driver the detach logic has
been changed from a sleep based retry loop to waiting for libvirt domain
events. During this change we also introduced two new config options to
allow fine tuning the retry logic. For details see the description of the
new ``[libvirt]device_detach_attempts`` and
``[libvirt]device_detach_timeout`` config options.
.. __: https://bugs.launchpad.net/nova/+bug/1882521