Comment 5 for bug 1917332

Thanks David, I tried to run the action you suggested, but with no success:

ubuntu@przemeklal-bastion:~$ juju run-action mysql-innodb-cluster/0 reboot-cluster-from-complete-outage --wait
unit-mysql-innodb-cluster-0:
  UnitId: mysql-innodb-cluster/0
  id: "92"
  message: Reboot cluster from complete outage failed.
  results:
    output: |+
      Cannot set LC_ALL to locale en_US.UTF-8: No such file or directory
      Restoring the default cluster from complete outage...

      Traceback (most recent call last):
        File "<string>", line 2, in <module>
      SystemError: RuntimeError: Dba.reboot_cluster_from_complete_outage: The MySQL instance '10.5.0.7:3306' belongs to an InnoDB Cluster and is reachable. Please use <Cluster>.force_quorum_using_partition_of() to restore from the quorum loss.

    traceback: |
      Traceback (most recent call last):
        File "/var/lib/juju/agents/unit-mysql-innodb-cluster-0/charm/actions/reboot-cluster-from-complete-outage", line 164, in reboot_cluster_from_complete_outage
          output = instance.reboot_cluster_from_complete_outage()
        File "/var/lib/juju/agents/unit-mysql-innodb-cluster-0/charm/lib/charm/openstack/mysql_innodb_cluster.py", line 798, in reboot_cluster_from_complete_outage
          raise e
        File "/var/lib/juju/agents/unit-mysql-innodb-cluster-0/charm/lib/charm/openstack/mysql_innodb_cluster.py", line 786, in reboot_cluster_from_complete_outage
          output = self.run_mysqlsh_script(_script).decode("UTF-8")
        File "/var/lib/juju/agents/unit-mysql-innodb-cluster-0/charm/lib/charm/openstack/mysql_innodb_cluster.py", line 1541, in run_mysqlsh_script
          return subprocess.check_output(cmd, stderr=subprocess.PIPE)
        File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
          return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
        File "/usr/lib/python3.8/subprocess.py", line 512, in run
          raise CalledProcessError(retcode, process.args,
      subprocess.CalledProcessError: Command '['/snap/bin/mysqlsh', '--no-wizard', '--python', '-f', '/root/snap/mysql-shell/common/tmpaxf532am.py']' returned non-zero exit status 1.
  status: failed
  timing:
    completed: 2021-03-01 18:53:11 +0000 UTC
    enqueued: 2021-03-01 18:53:08 +0000 UTC
    started: 2021-03-01 18:53:10 +0000 UTC

I tried to run it a couple of times against all 3 units and I kept getting the same traceback as above.