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Type: Bug
Resolution: Won't Do
Priority: Major
Fix Version/s: OADP 1.4.1
Affects Version/s: OADP 1.3.1
Component/s: data-mover
Labels:
- backup
- data-mover
- oadp
- triaged
- xfs

Blocked:
False
Blocked Reason:

Hide

None

Show
None
Ready:
False
QEStatus:
ToDo
Intelligence Requested:
Market:

Severity:
Important
Cost of Delay:
8
WSJF:
0
Risk Probability:
Very Likely
Risk Score:
0
Customer Impact:

Customer Escalated, Customer Facing

Workstream:

None

Root Cause:
Unset
Failure Category:
Unknown

Regression:
No

SFDC Cases Links:
SFDC Cases Counter:
SFDC Cases Open:

PX Priority Data:
PX Impact Score:

Description of problem:

When using Data Mover as per Backing up and restoring CSI snapshots data movement to backup persistent data, it's observed that the Backup will fail, when the volume formatted using XFS filesystem type and the volume is filled by 100%.

The backup pod in openshift-adp will fail to start and report the below Events. Interesting enough, a volume with filesystem type set to EXT4 and also filled by 100% is not showing/reporting similar problems.

11m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-103: no space left on device
9m59s       Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-10: no space left on device
9m22s       Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-105: no space left on device
11m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-109: no space left on device
10m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-1: no space left on device
10m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-102: no space left on device
9m46s       Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-101: no space left on device

Version-Release number of selected component (if applicable):

OpenShift API for Data Protection 1.3.1

How reproducible:

Always

Steps to Reproduce:

1. Setup OpenShift Container Platform 4 and install OpenShift API for Data Protection 1.3.1
2. Configure ... as per example below (the example is using minio but it's expected to see the same problem with any other storage location)

apiVersion: oadp.openshift.io/v1alpha1
kind: DataProtectionApplication
metadata:
  name: oadp-minio
  namespace: openshift-adp
spec:
  backupLocations:
  - velero:
      config:
        insecureSkipTLSVerify: "true"
        profile: default
        region: minio
        s3ForcePathStyle: "true"
        s3Url: https://<svc-ip>
      credential:
        key: cloud
        name: cloud-credentials
      default: true
      objectStorage:
        bucket: backup
        prefix: velero
      provider: aws
  configuration:
    nodeAgent:
      enable: true
      uploaderType: kopia
    velero:
      defaultPlugins:
      - openshift
      - csi
      - aws
  snapshotLocations:
  - velero:
      config:
        profile: default
        region: minio
      provider: aws

3. Create a custom StorageClass to have the volume formated with XFS filesystem

allowVolumeExpansion: true
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: gp3-csi-custom
parameters:
  csi.storage.k8s.io/fstype: xfs
  encrypted: "true"
  type: gp3
provisioner: ebs.csi.aws.com
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer

4. Create an application with filesystem attached (XFS)

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: curl
    app.kubernetes.io/component: curl
    app.kubernetes.io/instance: curl
    app.kubernetes.io/name: curl
    app.kubernetes.io/part-of: curl
    app.openshift.io/runtime: fedora
    app.openshift.io/runtime-namespace: project-100
  name: curl
  namespace: project-100
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: curl
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      annotations:
        openshift.io/generated-by: OpenShiftWebConsole
      creationTimestamp: null
      labels:
        app: curl
        deployment: curl
    spec:
      containers:
      - image: quay.io/rhn_support_sreber/curl:latest
        imagePullPolicy: Always
        name: curl
        ports:
        - containerPort: 8080
          protocol: TCP
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /data
          name: data
        - mountPath: /data-xfs
          name: data-xfs
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: data
      - name: data-xfs
        persistentVolumeClaim:
          claimName: data-xfs

5. Write to the XFS volume in the application to fill it up

oc rsh -n project-100 curl-XXXXXXXX-XXXX
for i in {1..100000000}
do
dd if=/dev/random of=/data-xfs/data-xfs-$i bs=1024K count=1
done

6. Run the backup

apiVersion: velero.io/v1
kind: Backup
metadata:
  name: backup
  labels:
    velero.io/storage-location: oadp-minio-1
  namespace: openshift-adp
spec:
  hooks: {}
  defaultVolumesToFsBackup: false
  snapshotMoveData: true
  includedNamespaces:
  - project-100
  storageLocation: oadp-minio-1
  ttl: 720h0m0s
  volumeSnapshotLocations:
  - oadp-minio-1

Actual results:

Backup remains pending completion until the timeout is met. Yet the following events are reported by the backup pod in openshift-adp

11m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-103: no space left on device
9m59s       Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-10: no space left on device
9m22s       Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-105: no space left on device
11m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-109: no space left on device
10m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-1: no space left on device
10m         Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-102: no space left on device
9m46s       Warning   Failed                                     pod/backup-8-gnkw2                             Error: relabel failed /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount: lsetxattr /var/lib/kubelet/pods/3acf031e-aa17-49af-ae82-2f622de2fe34/volumes/kubernetes.io~csi/pvc-684b9cc5-df89-4043-a7c4-b7b37d56512c/mount/data-xfs-101: no space left on device

Expected results:

The backup should either complete or immediately report that the backup can not be taken because the volume is filled by 100% and therefore the process might actually fail.

Additional info:

As highlighted before, this only happens with XFS filesystem. When using EXT4 no such problem is being reported

relates to

OADP-4568 OADP Troubleshooting: XFS volume full, out of space issues.

Closed

links to

Bug 1643448 - Unable to correctly mount volume with XFS filesystem when filesystem is full 100%

Bug 2053437 - A volume from AWS EBS(gp2) becomes tmpfs in a pod when the volume is full

https://access.redhat.com/solutions/3667881

https://access.redhat.com/support/cases/#/case/03827654

Assignee:: Michal Pryc

Reporter:: Simon Reber

Need Info From:: Wes Hayutin

QA Contact:: Prasad Joshi

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Created:: 2024/05/24 9:36 AM

Updated:: 2024/08/05 3:02 PM

Resolved:: 2024/07/22 3:04 PM

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Description of problem:

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:

Actual results:

Expected results:

Additional info:

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