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---
upgrade:
- |
Nova now defaults to using the live snapshot feature of libvirt
when taking snapshots. This was previously disabled by default due
to crashes on load seen with older libvirt versions. It has been
used in production by many clouds, and appears stable in real
world environments. If you see crashes of guests during snapshots,
you can disable this with the ``disable_libvirt_livesnapshot``
config value in ``[workarounds]``.
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