Overcloud Deploy fails with "No such file or directory: '/var/lib/grafana/sessions/..." in OpenStack

Solution Verified - Updated -


  • OSP overcloud deployment failed during the ceph-ansible portion with following error:
# grep "failed:" /var/lib/mistral/overcloud/ceph-ansible/ceph_ansible_command.log
FileNotFoundError: [Errno 2] No such file or directory: b'/var/lib/grafana/sessions/5/e/5e35d4223ea8b888'
  • What is the purpose of the session files listed within the /var/lib/grafana/sessions/ directory structure?


  • Red Hat OpenStack Platform (OSP) 16.1
  • Red Hat Ceph Storage 4.2

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