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[fanzhicheng <1644712@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

nova-compute:  2:13.1.2-0ubuntu2~cloud0 
libvirt-bin:                        1.3.1-1
storage: ceph

1: create 10 vm in one compute-node1
2: poweroff  compute-node1
3: nova evacaute vm compute-node-2 one by one
4: i find the vm state is error, use commant: rbd -p compute ls |grep vm_id ,return none , the os disk of vm was deleted, From the nova-compute.log I get info:Timeout waiting for vif plugging callback for instance ,I read the nova code: 4938 /nova/virt/libvirt/driver.py ,found the self.cleanup(context, instance, network_info=network_info,
                             block_device_info=block_device_info) 
destroy the disk, I think it is not reasonable for destroy_disks=True

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1644712

Title:
  os disk of instance was deleted when failed to evacaute

Status in OpenStack Compute (nova):
  New

Bug description:
  nova-compute:  2:13.1.2-0ubuntu2~cloud0 
  libvirt-bin:                        1.3.1-1
  storage: ceph

  1: create 10 vm in one compute-node1
  2: poweroff  compute-node1
  3: nova evacaute vm compute-node-2 one by one
  4: i find the vm state is error, use commant: rbd -p compute ls |grep vm_id ,return none , the os disk of vm was deleted, From the nova-compute.log I get info:Timeout waiting for vif plugging callback for instance ,I read the nova code: 4938 /nova/virt/libvirt/driver.py ,found the self.cleanup(context, instance, network_info=network_info,
                               block_device_info=block_device_info) 
  destroy the disk, I think it is not reasonable for destroy_disks=True

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