Can't clone DV FS to Block

4.17

Always

1. Create an FS DV, request 4Gi

apiVersion: cdi.kubevirt.io/v1beta1
kind: DataVolume
metadata:
  name: dv-cirros-fs
  namespace: cdi-clone-test-clone
spec:
  contentType: kubevirt
  source:
    http:
      certConfigMap: artifactory-configmap
      secretRef: cnv-tests-artifactory-secret
      url: https://<artifactory_server>/cirros-images/cirros-0.4.0-x86_64-disk.qcow2
  storage:
    resources:
      requests:
        storage: 4Gi
    storageClassName: io2-csi
    volumeMode: Filesystem

For some reason, it created a 5Gi PVC:

$ oc get pvc -n cdi-clone-test-clone dv-cirros-fs
NAME           STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   VOLUMEATTRIBUTESCLASS   AGE
dv-cirros-fs   Bound    pvc-65fdf3d5-811a-4443-b30a-0f7db3a79b51   5Gi        RWO            io2-csi        <unset>                 5m3s


PVC YAML:

$ oc get pvc -n cdi-clone-test-clone dv-cirros-fs -oyaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    cdi.Kubervirt.io/sourceCapacity: 5Gi
    cdi.Kubervirt.io/virtualSize: "4294967296"
    cdi.kubevirt.io/createdForDataVolume: 39d7a0e8-5e38-476b-b69a-b82f7cb36438
    cdi.kubevirt.io/storage.condition.running: "false"
    cdi.kubevirt.io/storage.condition.running.message: Import Complete
    cdi.kubevirt.io/storage.condition.running.reason: Completed
    cdi.kubevirt.io/storage.contentType: kubevirt
    cdi.kubevirt.io/storage.pod.phase: Succeeded
    cdi.kubevirt.io/storage.pod.restarts: "0"
    cdi.kubevirt.io/storage.populator.progress: 100.0%
    cdi.kubevirt.io/storage.preallocation.requested: "false"
    cdi.kubevirt.io/storage.usePopulator: "true"
    pv.kubernetes.io/bind-completed: "yes"
    pv.kubernetes.io/bound-by-controller: "yes"
    volume.beta.kubernetes.io/storage-provisioner: ebs.csi.aws.com
    volume.kubernetes.io/selected-node: ip-10-0-5-129.us-east-2.compute.internal
    volume.kubernetes.io/storage-provisioner: ebs.csi.aws.com
  creationTimestamp: "2024-10-08T09:44:16Z"
  finalizers:
  - kubernetes.io/pvc-protection
  labels:
    alerts.k8s.io/KubePersistentVolumeFillingUp: disabled
    app: containerized-data-importer
    app.kubernetes.io/component: storage
    app.kubernetes.io/managed-by: cdi-controller
    app.kubernetes.io/part-of: hyperconverged-cluster
    app.kubernetes.io/version: 4.17.0
  name: dv-cirros-fs
  namespace: cdi-clone-test-clone
  ownerReferences:
  - apiVersion: cdi.kubevirt.io/v1beta1
    blockOwnerDeletion: true
    controller: true
    kind: DataVolume
    name: dv-cirros-fs
    uid: 39d7a0e8-5e38-476b-b69a-b82f7cb36438
  resourceVersion: "83997"
  uid: 8385b26a-3a6b-473f-ba8d-6364cee283d7
spec:
  accessModes:
  - ReadWriteOnce
  dataSource:
    apiGroup: cdi.kubevirt.io
    kind: VolumeImportSource
    name: volume-import-source-39d7a0e8-5e38-476b-b69a-b82f7cb36438
  dataSourceRef:
    apiGroup: cdi.kubevirt.io
    kind: VolumeImportSource
    name: volume-import-source-39d7a0e8-5e38-476b-b69a-b82f7cb36438
  resources:
    requests:
      storage: "4544938938"
  storageClassName: io2-csi
  volumeMode: Filesystem
  volumeName: pvc-65fdf3d5-811a-4443-b30a-0f7db3a79b51
status:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: 5Gi
  phase: Bound


4544938938 ~= 4.23 Gi

2. Try cloning to Block DV (result is the same with 4Gi and 5Gi requested size)

apiVersion: cdi.kubevirt.io/v1beta1
kind: DataVolume
metadata:
  annotations:
    cdi.kubevirt.io/storage.bind.immediate.requested: 'true'
  name: dv-5607-5gi
  namespace: cdi-clone-test-clone
spec:
  source:
    pvc:
      name: dv-cirros-fs
      namespace: cdi-clone-test-clone
  storage:
    resources:
      requests:
        storage: 5Gi
    storageClassName: io2-csi
    volumeMode: Block
 

Clone restarts:

$ oc get dv -n cdi-clone-test-clone 
NAME           PHASE             PROGRESS   RESTARTS   AGE
dv-5607-5gi    CloneInProgress   N/A        4          2m33s
dv-cirros-fs   Succeeded         100.0%                28m


$ oc get pvc -n cdi-clone-test-clone
NAME                                           STATUS    VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   VOLUMEATTRIBUTESCLASS   AGE
dv-5607-5gi                                    Pending                                                                        io2-csi        <unset>                 114s
dv-cirros-fs                                   Bound     pvc-65fdf3d5-811a-4443-b30a-0f7db3a79b51   5Gi        RWO            io2-csi        <unset>                 27m
tmp-pvc-e9eeae7f-484e-405f-b8c0-ff8fe9decc58   Bound     pvc-20c3f79b-e04a-42bb-b05f-38bb0bbcb7b8   5Gi        RWX            io2-csi        <unset>                 113s

3. Source pod Errors:

$ oc get pods -n cdi-clone-test-clone
NAME                                                      READY   STATUS             RESTARTS       AGE
20c3f79b-e04a-42bb-b05f-38bb0bbcb7b8-source-pod           0/1     Error              5 (87s ago)    2m56s
cdi-upload-tmp-pvc-e9eeae7f-484e-405f-b8c0-ff8fe9decc58   1/1     Running            0              3m7s 

Source pod log:

$ oc logs -n cdi-clone-test-clone 20c3f79b-e04a-42bb-b05f-38bb0bbcb7b8-source-pod -p
VOLUME_MODE=filesystem
MOUNT_POINT=/var/run/cdi/clone/source
/var/run/cdi/clone/source /
Not preallocating filesystem, uploading only used bytes
UPLOAD_BYTES=13725696
I1008 10:13:10.982250      10 clone-source.go:224] content-type is "filesystem-clone"
I1008 10:13:10.982314      10 clone-source.go:225] mount is "/var/run/cdi/clone/source"
I1008 10:13:10.982318      10 clone-source.go:226] upload-bytes is 13725696
I1008 10:13:10.982327      10 clone-source.go:243] Starting cloner target
I1008 10:13:10.982376      10 clone-source.go:179] Executing /usr/bin/tar [cv -S disk.img]
I1008 10:13:11.511495      10 clone-source.go:259] Set header to filesystem-clone
F1008 10:13:11.553989      10 clone-source.go:268] Unexpected status code 500

Upload pod log:

$ oc logs -n cdi-clone-test-clone cdi-upload-tmp-pvc-e9eeae7f-484e-405f-b8c0-ff8fe9decc58
I1008 10:10:17.892359       1 uploadserver.go:81] Running server on 0.0.0.0:8443
I1008 10:10:21.485305       1 uploadserver.go:438] Content type header is "filesystem-clone"
I1008 10:10:21.486307       1 file.go:264] copyWithSparseCheck to /dev/cdi-block-volume
E1008 10:10:21.486542       1 file.go:282] Error zeroing range in destination file: operation not supported
E1008 10:10:21.487303       1 uploadserver.go:452] Saving stream failed: operation not supported
I1008 10:10:23.313320       1 uploadserver.go:438] Content type header is "filesystem-clone"
I1008 10:10:23.314423       1 file.go:264] copyWithSparseCheck to /dev/cdi-block-volume
E1008 10:10:23.314535       1 file.go:282] Error zeroing range in destination file: operation not supported
E1008 10:10:23.317623       1 uploadserver.go:452] Saving stream failed: operation not supported
I1008 10:10:37.768234       1 uploadserver.go:438] Content type header is "filesystem-clone"
I1008 10:10:37.769347       1 file.go:264] copyWithSparseCheck to /dev/cdi-block-volume
E1008 10:10:37.769457       1 file.go:282] Error zeroing range in destination file: operation not supported
E1008 10:10:37.771007       1 uploadserver.go:452] Saving stream failed: operation not supported
I1008 10:11:03.693177       1 uploadserver.go:438] Content type header is "filesystem-clone"
I1008 10:11:03.694247       1 file.go:264] copyWithSparseCheck to /dev/cdi-block-volume
E1008 10:11:03.694368       1 file.go:282] Error zeroing range in destination file: operation not supported
E1008 10:11:03.696887       1 uploadserver.go:452] Saving stream failed: operation not supported
I1008 10:11:48.519051       1 uploadserver.go:438] Content type header is "filesystem-clone"
I1008 10:11:48.520151       1 file.go:264] copyWithSparseCheck to /dev/cdi-block-volume
E1008 10:11:48.520271       1 file.go:282] Error zeroing range in destination file: operation not supported
E1008 10:11:48.523188       1 uploadserver.go:452] Saving stream failed: operation not supported
I1008 10:13:11.521449       1 uploadserver.go:438] Content type header is "filesystem-clone"
I1008 10:13:11.522503       1 file.go:264] copyWithSparseCheck to /dev/cdi-block-volume
E1008 10:13:11.522635       1 file.go:282] Error zeroing range in destination file: operation not supported
E1008 10:13:11.553867       1 uploadserver.go:452] Saving stream failed: operation not supported

FS to Block clone fails

FS to Block clone succeeds