Troubleshoot backup and restore with the OADP CLI¶

Use the OADP CLI plugin for all backup and restore operations, including viewing logs and descriptions. You do not need to download the velero CLI tool to debug Backup and Restore custom resources (CRs) or troubleshoot failed operations.

Install the OADP CLI plugin¶

The OADP command-line interface (CLI) plugin is available from the Command-line tools page in the OpenShift Container Platform web console when the OADP Operator is installed.

Prerequisites

• You have access to an OpenShift Container Platform cluster with the OADP Operator installed.

Procedure

1. Log in to the OpenShift Container Platform web console as a user with access to the cluster.
2. Click the ? icon in the toolbar and select Command-line tools.
3. Download the oc-oadp binary for your operating system and architecture.
4. Extract the archive and place the oc-oadp binary in a directory on your PATH.
5. Verify the installation:
   terminal

   $ oc oadp version

OADP-Velero-OpenShift Container Platform version relationship¶

Review the version relationship between OADP, Velero, and OpenShift Container Platform to decide compatible version combinations. This helps you select the appropriate OADP version for your cluster environment.

Debugging Velero resources with the OpenShift CLI tool¶

Debug a failed backup or restore by checking Velero custom resources (CRs) and the Velero pod log with the OpenShift CLI tool.

Procedure

• Retrieve a summary of warnings and errors associated with a Backup or Restore CR by using the following oc describe command:
  terminal

  $ oc describe <velero_cr> <cr_name>

• Retrieve the Velero pod logs by using the following oc logs command:
  terminal

  $ oc logs pod/<velero>

• Specify the Velero log level in the DataProtectionApplication resource as shown in the following example.
  Note

  This option is available starting from OADP 1.0.3.

  yaml

  apiVersion: oadp.openshift.io/v1alpha1
  kind: DataProtectionApplication
  metadata:
    name: velero-sample
  spec:
    configuration:
      velero:
        logLevel: warning

  The following logLevel values are available:

  • trace
  • debug
  • info
  • warning
  • error
  • fatal
  • panic

    Use the info logLevel value for most logs.

Debugging backups and restores using the OADP CLI¶

Use the OADP CLI plugin to retrieve logs and descriptions of backup and restore custom resources (CRs). Use the following information to interpret the output.

To retrieve backup and restore information, use the following OADP CLI plugin commands:

• oc oadp backup describe <backup_name> --details
• oc oadp backup logs <backup_name>
• oc oadp restore describe <restore_name> --details
• oc oadp restore logs <restore_name>

The following types of errors and warnings appear in describe output:

• Velero: Messages related to the operation of Velero itself, for example, connecting to the cloud or reading a backup file.
• Cluster: Messages related to backing up or restoring cluster-scoped resources.
• Namespaces: Messages related to backing up or restoring resources stored in namespaces.

One or more errors in one of these categories results in a Restore operation receiving the status of PartiallyFailed and not Completed. Warnings do not lead to a change in the completion status.

Consider the following points when you encounter restore errors:

• For resource-specific errors (Cluster and Namespaces), the restore describe --details output includes a resource list of all resources that Velero attempted to restore. For any resource that has such an error, check whether the resource exists in the cluster.
• If there are Velero errors but no resource-specific errors, it is possible that the restore completed without problems restoring workloads. In this case, carefully validate post-restore applications.

  For example, if the output contains PodVolumeRestore or node agent-related errors, check the status of PodVolumeRestores and DataDownloads. If none of these are failed or still running, volume data might have been fully restored.