How do I troubleshoot DCOS issues?

If your DCOS service or app deployment has failed you can go to the Marathon (<hostname>/marathon) or Mesos (<hostname>/mesos) web interfaces to debug.

  • The Mesos web interface contains the Mesos logs, and the stderr and stdout information.
  • The Marathon Deployments tab shows information for a specific app or service.
  • To view the DCOS Marathon logs:
    1. SSH into the node where Marathon is running.
    2. Enter this command:
      journalctl -u dcos-marathon
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