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[Bug 1981562] Re: [NFS] Nova raises error on server resize command

 

** Also affects: nova
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1981562

Title:
  [NFS] Nova raises error on server resize command

Status in Cinder:
  New
Status in OpenStack Compute (nova):
  New

Bug description:
  [env] devstack
  [OS] Ubuntu 20.04.4 LTS
  [driver] generic-nfs

  Nova raises error when changing the parameters of the instance and
  connected disk with the type volume generic-nfs.

  Execution steps for this case:
  1. Create a new volume with image and with type generic-nfs
  2. Create a new instance with boot volume.
  3. Do something interactive with the guest like get its console output.
  4. Modify server disk and RAM to other provided flavor via openstack cli "server resize --flavor FLAVOR INST"

  /etc/cinder/cinder.conf
  [generic-nfs]
  volume_driver=cinder.volume.drivers.nfs.NfsDriver
  nfs_qcow2_volumes=True
  nfs_snapshot_support=True
  nfs_sparsed_volumes=False
  nas_host=nas_ip
  nas_share_path=nas_path
  nas_secure_file_operations=False
  nas_secure_file_permissions=False
  volume_backend_name=generic-nfs

  
  (openstack) server list
  | ID                                   | Name            | Status | Networks               | Image                    | Flavor  |
  +--------------------------------------+-----------------+--------+------------------------+--------------------------+---------+
  | 78355147-7b94-479d-99e4-8821ec9883ff | testGenericInst | ACTIVE | shared=192.168.233.227 | N/A (booted from volume) | m1.nano |

  
  (openstack) volume show genericVolume

  | Field                          | Value                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
  | attachments                    | []                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
  | availability_zone              | nova                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | bootable                       | true                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | consistencygroup_id            | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | created_at                     | 2022-07-13T10:03:06.000000                                                                                                                                                                                                                                                                                                                                                                                                                                           |
  | description                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
  | encrypted                      | False                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
  | id                             | b2ed4de3-9564-4d85-a030-2d53a2c058d3                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | migration_status               | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | multiattach                    | False                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
  | name                           | genericVolume                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
  | os-vol-host-attr:host          | ubuntu@generic-nfs#generic-nfs                                                                                                                                                                                                                                                                                                                                                                                                                                       |
  | os-vol-mig-status-attr:migstat | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | os-vol-mig-status-attr:name_id | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | os-vol-tenant-attr:tenant_id   | ca2d2e2e1f6640e899e6f822d18bf11d                                                                                                                                                                                                                                                                                                                                                                                                                                     |
  | properties                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
  | replication_status             | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | size                           | 1                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
  | snapshot_id                    | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | source_volid                   | None                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
  | status                         | attaching                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
  | type                           | generic-nfs                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
  | updated_at                     | 2022-07-13T10:17:00.000000                                                                                                                                                                                                                                                                                                                                                                                                                                           |
  | user_id                        | b55ef3ba97674255966e278b81aff22f                                                                                                                                                                                                                                                                                                                                                                                                                                     |
  | volume_image_metadata          | {'signature_verified': 'False', 'hw_rng_model': 'virtio', 'owner_specified.openstack.md5': '', 'owner_specified.openstack.object': 'images/cirros-0.5.2-x86_64-disk', 'owner_specified.openstack.sha256': '', 'image_id': '83560164-8301-425b-89c5-36fe5b3f222c', 'image_name': 'cirros-0.5.2-x86_64-disk', 'checksum': 'b874c39491a2377b8490f5f1e89761a4', 'container_format': 'bare', 'disk_format': 'qcow2', 'min_disk': '0', 'min_ram': '0', 'size': '16300544'} |

  
  (openstack) server resize --flavor 2 testGenericInst

  devstack@n-cpu.service output
  Jul 13 03:17:08 ubuntu nova-compute[991]: : libvirt.libvirtError: internal error: process exited while connecting to monitor: 2022-07-13T10:17:07.119481Z qemu-system-x86_64: -blockdev {"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage","backing":null}: Image is not in qcow2 format
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest Traceback (most recent call last):
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/opt/stack/nova/nova/virt/libvirt/guest.py", line 165, in launch
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     return self._domain.createWithFlags(flags)
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/usr/local/lib/python3.8/dist-packages/eventlet/tpool.py", line 193, in doit
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     result = proxy_call(self._autowrap, f, *args, **kwargs)
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/usr/local/lib/python3.8/dist-packages/eventlet/tpool.py", line 151, in proxy_call
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     rv = execute(f, *args, **kwargs)
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/usr/local/lib/python3.8/dist-packages/eventlet/tpool.py", line 132, in execute
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     six.reraise(c, e, tb)
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/usr/local/lib/python3.8/dist-packages/six.py", line 719, in reraise
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     raise value
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/usr/local/lib/python3.8/dist-packages/eventlet/tpool.py", line 86, in tworker
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     rv = meth(*args, **kwargs)
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest   File "/usr/lib/python3/dist-packages/libvirt.py", line 1265, in createWithFlags
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest libvirt.libvirtError: internal error: process exited while connecting to monitor: 2022-07-13T10:17:07.119481Z qemu-system-x86_64: -blockdev {"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage","backing":null}: Image is not in qcow2 format
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.guest
  Jul 13 03:17:08 ubuntu nova-compute[991]: ERROR nova.virt.libvirt.driver [None req-4c327787-e543-4353-af4d-a98c7a9a906a admin admin] [instance: 78355147-7b94-479d-99e4-8821ec9883ff] Failed to start libvirt guest: libvirt.libvirtError: internal error: process exited while connecting to monitor: 2022-07-13T10:17:07.119481Z qemu-system-x86_64: -blockdev {"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage","backing":null}: Image is not in qcow2 format

  
  qemu-img info ./volume-b2ed4de3-9564-4d85-a030-2d53a2c058d3
  image: ./volume-b2ed4de3-9564-4d85-a030-2d53a2c058d3
  file format: raw
  virtual size: 1 GiB (1073741824 bytes)
  disk size: 56.4 MiB

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