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---
features:
- |
The ``nova_libvirt`` container now runs ``virtlogd`` as a sidecar
alongside ``libvirtd``, and ``qemu.conf`` is configured with
``stdio_handler = "logd"`` so that libvirt routes instance console
chardevs through ``virtlogd``. This allows guest console logs to be
rotated according to ``/etc/libvirt/virtlogd.conf`` (by default 2MB
per file with 3 backups), instead of growing without bound as they
did when ``stdio_handler`` was set to ``"file"``.
Note that existing instances must be hard rebooted to pick up the
new console handler, as the chardev mode is fixed at qemu launch.
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