Horizon failing with os profiler issue

[Sudheer Kalla]

Whenever i try to open horizon i will get an error and horizon won't show up .The following is the error i got

[Thu Jul 16 08:11:48.966357 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] Traceback (most recent call last):, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966400 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/django.wsgi", line 14, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966534 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] application = get_wsgi_application(), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966572 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/django/core/wsgi.py", line 14, in get_wsgi_application, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966677 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] django.setup(), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966708 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/django/__init__.py", line 20, in setup, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966807 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] configure_logging(settings.LOGGING_CONFIG, settings.LOGGING), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.966844 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 46, in __getattr__, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967004 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] self._setup(name), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967034 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 42, in _setup, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967086 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] self._wrapped = Settings(settings_module), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967112 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 94, in __init__, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967150 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] mod = importlib.import_module(self.SETTINGS_MODULE), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967178 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967284 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] __import__(name), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967314 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../openstack_dashboard/settings.py", line 27, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967512 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] from openstack_dashboard import exceptions, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967582 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../openstack_dashboard/exceptions.py", line 22, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967706 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] from keystoneclient import exceptions as keystoneclient, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967737 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../keystoneclient/__init__.py", line 34, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.967946 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] from keystoneclient import client, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968005 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../keystoneclient/client.py", line 13, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968132 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] from keystoneclient import discover, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968162 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../keystoneclient/discover.py", line 20, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968432 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] from keystoneclient import session as client_session, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968467 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../keystoneclient/session.py", line 32, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968875 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] osprofiler_web = importutils.try_import("osprofiler.web"), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.968909 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../oslo_utils/importutils.py", line 71, in try_import, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969054 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] return import_module(import_str), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969086 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../oslo_utils/importutils.py", line 57, in import_module, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969128 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] __import__(import_str), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969152 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../osprofiler/__init__.py", line 23, in <module>, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969252 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] utils.import_modules_from_package("osprofiler._notifiers"), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969282 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] File "/usr/lib/python2.7/dist-packages/openstack_dashboard/wsgi/../../osprofiler/_utils.py", line 172, in import_modules_from_package, referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969428 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] __import__(module_name), referer: https://10.35.58.13:5290/project/
[Thu Jul 16 08:11:48.969501 2015] [:error] [pid 3442:tid 139893606598400] [client 192.168.122.1:37270] ValueError: Empty module name, referer: https://10.35.58.13:5290/project/

I have my settings file in the same directory as it should be and iam still getting this error.

[Matthias Runge (mrunge)]

Could you please give more context? Version, distro, additional plugins, url called, login (like admin or user); it may be worth to share your config, if you distrust your config.

[Matthias Runge (mrunge)]

Horizon does not use osprofiler at all.

[Sudheer Kalla (sudheer-kalla)]

But heatclient internal uses osprofiler so while loading this is causing issue . And moreover if i comment the line __import__(module_name) in the file openstack_dashboard/wsgi/../../osprofiler/_utils.py (line no 172) i can load my horizon and iam able to access it .

[Matthias Runge (mrunge)]

then it's a heatclient issue (missing dependency)

[Sudheer Kalla (sudheer-kalla)]

For me it is reproducible in mitaka also, osprofiler is dependency for heat and it is installed.

[Gary W. Smith (gary-w-smith)]

As Matthias suggested, this appears to be a configuration issue. If you can
reproduce this with horizon directly, then please supply the additional
requested details and reopen the bug.

[Harri Heikkilä (hh61)]

It might be configuration issue, but then that is something that is missing from defaults or documentation. If that is documented somewhere, please provide exact link here.

-I have installed Open stack Liberty straight from sources in 2016 and encountered this (or related issue, among many other), which I reported https://bugs.launchpad.net/python-heatclient/+bug/1539607 newer receiving proper attention. I got Liberty somewhat up and running, but needed to deep digging individual patches mentioned only in individual bug reports. So I then gave up on Liberty release.
-I gave OpenStack one more chance again in March 2017 using Kolla-ansible packaging following their documentation (Newton&Ocata) and found exactly the same issue. Which I reported then in #openstack-kolla IRC channel which was noted. But didn't follow what happened to it after that.

_I think all mentioned bug reports are related to same missing symbolic link issue._

Also Sudheer also mentions above (openstack_dashboard/wsgi/../../) which imo points to same problem.

I made local quick and dirty workaround to my local Ansible scripts that I wrote now following official documented kolla-ansible procedure. Without this workaround, Horizon UI starts, but is missing all static content (icons, .css etc.) resulting unbearable UI.

The workaround I needed also with Kolla-Ansible (Ubuntu 16.10 running in KVM):
- name: Check is kolla folder/link missing
  command: ls /usr/local/share/kolla
  register: kolla_link_missing
  always_run: True
  ignore_errors: True
  changed_when: False

- name: Link kolla-ansible to kolla (needed still?)
  shell: ln -s /usr/local/share/kolla-ansible /usr/local/share/kolla
  become: True
  when: kolla_link_missing.rc != 0

Should you do regression testing against installation documentation also? In my opinion would help on expanding OpenStack install base on private/hybrid clouds thus being money well spent. I don't need single new features to OpenStack before basic installation is properly working and documented and official 'release' is bug free.

Othervise Kolla-ansible is huge improvement on installation burden. With this my workaround and Kolla-ansible documented preparation work I can now (almost)automatically install OpenStack as private cloud running on top of single KVM (running all those OpenStack Docker containers). I have some pending Networking visibility issues, but they must be related to my own VLAN configurations from iron to KVM.

[Launchpad Janitor (janitor)]

[Expired for OpenStack Dashboard (Horizon) because there has been no activity for 60 days.]