/usr/lib/python3.6/site-packages/paramiko/client.py:779: UserWarning: Unknown ssh-ed25519 host key for 192.168.122.52: b'5c35bb06acf711f89c7f1c64af3dbee3'
  key.get_name(), hostname, hexlify(key.get_fingerprint()),
2018-08-21 06:10:14,555 main.py 128 INFO   doctor test starting.......
2018-08-21 06:10:14,555 apex.py 36 INFO   Setup Apex installer start......
2018-08-21 06:10:14,556 base.py 91 INFO   Get SSH keys from apex installer......
2018-08-21 06:10:14,805 apex.py 53 INFO   Get controller and compute ips from Apex installer......
2018-08-21 06:10:14,805 base.py 109 INFO   Run command=source stackrc; nova list | grep ' overcloud-' in apex installer......
2018-08-21 06:10:19,474 base.py 118 INFO   Output=['| 054958ae-a9be-4e90-8729-243e68d27a9f | overcloud-controller-0  | ACTIVE | -          | Running     | ctlplane=192.30.9.4 |', '| b4f19476-7999-4be2-a080-ed15b8a144ce | overcloud-novacompute-0 | ACTIVE | -          | Running     | ctlplane=192.30.9.6 |', '| 6ebbc401-ba34-4105-ba44-56983e00a398 | overcloud-novacompute-1 | ACTIVE | -          | Running     | ctlplane=192.30.9.9 |'] command=source stackrc; nova list | grep ' overcloud-' in apex installer
2018-08-21 06:10:19,475 apex.py 64 INFO   controller_ips:['192.30.9.4']
2018-08-21 06:10:19,476 apex.py 65 INFO   compute_ips:['192.30.9.6', '192.30.9.9']
2018-08-21 06:10:20,208 apex.py 93 INFO   Set apply patches start......
/usr/lib/python3.6/site-packages/paramiko/client.py:779: UserWarning: Unknown ssh-ed25519 host key for 192.30.9.4: b'dd7e89ae006e44d9c286caea4e520740'
  key.get_name(), hostname, hexlify(key.get_fingerprint()),
2018-08-21 06:10:21,610 main.py 145 ERROR  doctor test failed, Exception=Unable to run 
command: sudo python set_config.py
ret: 1
2018-08-21 06:10:21,611 apex.py 124 INFO   restore apply patches start......
Traceback (most recent call last):
  File "/src/doctor-tests/doctor_tests/main.py", line 131, in run
    self.setup()
  File "/src/doctor-tests/doctor_tests/main.py", line 45, in setup
    self.installer.setup()
  File "/src/doctor-tests/doctor_tests/installer/apex.py", line 40, in setup
    self.set_apply_patches()
  File "/src/doctor-tests/doctor_tests/installer/apex.py", line 107, in set_apply_patches
    self.cm_set_script)
  File "/src/doctor-tests/doctor_tests/installer/base.py", line 128, in _run_apply_patches
    ret, output = client.ssh(cmd)
  File "/src/doctor-tests/doctor_tests/common/utils.py", line 84, in ssh
    % (command, ret))
Exception: Unable to run 
command: sudo python set_config.py
ret: 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/src/doctor-tests/doctor_tests/main.py", line 146, in run
    sys.exit(1)
SystemExit: 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/doctor-test", line 10, in <module>
    sys.exit(main())
  File "/src/doctor-tests/doctor_tests/main.py", line 170, in main
    doctor.run()
  File "/src/doctor-tests/doctor_tests/main.py", line 148, in run
    self.cleanup()
  File "/src/doctor-tests/doctor_tests/main.py", line 151, in cleanup
    self.installer.cleanup()
  File "/src/doctor-tests/doctor_tests/installer/apex.py", line 44, in cleanup
    self.restore_apply_patches()
  File "/src/doctor-tests/doctor_tests/installer/apex.py", line 135, in restore_apply_patches
    self.cm_restore_script)
  File "/src/doctor-tests/doctor_tests/installer/base.py", line 133, in _run_apply_patches
    client.ssh(restart_cmd)
  File "/src/doctor-tests/doctor_tests/common/utils.py", line 84, in ssh
    % (command, ret))
Exception: Unable to run 
command: sudo systemctl restart openstack-ceilometer-notification.service
ret: 5