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troubleshooting.md

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Troubleshooting

These tips can help you troubleshoot known issues. If they don't help, you can file an issue, or talk to us on the #ark-dr channel on the Kubernetes Slack server.

In ark version >= 0.1.0, you can use the ark bug command to open a Github issue by launching a browser window with some prepopulated values. Values included are OS, CPU architecture, kubectl client and server versions (if available) and the ark client version. This information isn't submitted to Github until you click the Submit new issue button in the Github UI, so feel free to add, remove or update whatever information you like.

Some general commands for troubleshooting that may be helpful:

  • ark backup describe <backupName> - describe the details of a backup
  • ark backup logs <backupName> - fetch the logs for this specific backup. Useful for viewing failures and warnings, including resources that could not be backed up.
  • ark restore describe <restoreName> - describe the details of a restore
  • ark restore logs <restoreName> - fetch the logs for this specific restore. Useful for viewing failures and warnings, including resources that could not be restored.
  • kubectl logs deployment/ark -n heptio-ark - fetch the logs of the Ark server pod. This provides the output of the Ark server processes.

Getting ark debug logs

You can increase the verbosity of the Ark server by editing your Ark deployment to look like this:

kubectl edit deployment/ark -n heptio-ark
...
   containers:
     - name: ark
       image: gcr.io/heptio-images/ark:latest
       command:
         - /ark
       args:
         - server
         - --log-level # Add this line
         - debug       # Add this line
...