Live Migration failure Cannot get interface MTU on ‘qbrXXXXXXXX-XX’
Some times, when you are doing a live migration , it will ended up with the following error in the nova-compute.log of hypervisor. The reason for this as follows. The Interface was removed by the user, but LIBVIRT doesnt acknowledged about this. But nova did. So, when nova initiates a live migration, libvirt is looking for this interface, which actually doesnt exists.
virsh domiflist
Interface Type Source Model MAC tap29b1bcde-c7 bridge qbr29b1bcde-c7 virtio fa:16:3e:79:06:2a tap887baa4b-2e bridge qbr887baa4b-2e virtio fa:16:3e:d8:e9:db At the same time
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