Exceptions: __init__() takes at least 4 arguments (6 given)

[Timur Nurlygayanov]

Steps To Reproduce:
1. Install Rally from the master branch on Ubuntu 12.04
2. Configure deployment of existing cloud: rally deployment create --filename=doc/samples/deployments/existing.json --name=existing
3. Check the list of images and verify that this works correctly (execute 'rally show images').
4. Execute 'rally show flavors'

Observed Result:
Traceback in the console:

root@node-21:~/rally# rally show flavors
Command failed, please check log for more info
2014-08-25 09:56:55.723 23849 CRITICAL rally [-] TypeError: __init__() takes at least 4 arguments (6 given)
2014-08-25 09:56:55.723 23849 TRACE rally Traceback (most recent call last):
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/bin/rally", line 10, in <module>
2014-08-25 09:56:55.723 23849 TRACE rally sys.exit(main())
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/lib/python2.7/dist-packages/rally/cmd/main.py", line 40, in main
2014-08-25 09:56:55.723 23849 TRACE rally return cliutils.run(sys.argv, categories)
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/lib/python2.7/dist-packages/rally/cmd/cliutils.py", line 184, in run
2014-08-25 09:56:55.723 23849 TRACE rally ret = fn(*fn_args, **fn_kwargs)
2014-08-25 09:56:55.723 23849 TRACE rally File "<string>", line 2, in flavors
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/lib/python2.7/dist-packages/rally/cmd/envutils.py", line 64, in default_from_global
2014-08-25 09:56:55.723 23849 TRACE rally return f(*args, **kwargs)
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/lib/python2.7/dist-packages/rally/cmd/commands/show.py", line 85, in flavors
2014-08-25 09:56:55.723 23849 TRACE rally nova_client = clients.nova()
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/lib/python2.7/dist-packages/rally/osclients.py", line 61, in wrapper
2014-08-25 09:56:55.723 23849 TRACE rally self.cache[key] = func(self, *args, **kwargs)
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/local/lib/python2.7/dist-packages/rally/osclients.py", line 143, in nova
2014-08-25 09:56:55.723 23849 TRACE rally cacert=CONF.https_cacert)
2014-08-25 09:56:55.723 23849 TRACE rally File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 506, in Client
2014-08-25 09:56:55.723 23849 TRACE rally return client_class(*args, **kwargs)
2014-08-25 09:56:55.723 23849 TRACE rally TypeError: __init__() takes at least 4 arguments (6 given)
2014-08-25 09:56:55.723 23849 TRACE rally

[Timur Nurlygayanov (tnurlygayanov)]

This issue also reproduced for 'rally show keypairs', 'rally show secgroups' and 'rally show networks' commands.

[Timur Nurlygayanov (tnurlygayanov)]

This issue also reproduced when we executes benchmarks:

root@node-21:~/rally# rally -v task start doc/samples/tasks/scenarios/nova/boot-and-delete.json
================================================================================
Task 31799427-2403-49c0-bb22-674ab82839f1 is started
--------------------------------------------------------------------------------
2014-08-25 10:03:15.964 25309 INFO rally.orchestrator.api [-] Benchmark Task 31799427-2403-49c0-bb22-674ab82839f1 on Deployment 35a01ff4-e439-47b7-a165-d10c4c089725
2014-08-25 10:03:15.964 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Check cloud.
2014-08-25 10:03:16.059 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Completed: Check cloud.
2014-08-25 10:03:16.059 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Task validation.
2014-08-25 10:03:16.155 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Task validation of scenarios names.
2014-08-25 10:03:16.158 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Completed: Task validation of scenarios names.
2014-08-25 10:03:16.158 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Task validation of syntax.
2014-08-25 10:03:16.162 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Completed: Task validation of syntax.
2014-08-25 10:03:16.162 25309 INFO rally.benchmark.engine [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Task validation of semantic.
2014-08-25 10:03:16.162 25309 INFO rally.benchmark.context.users [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Enter context: `users`
2014-08-25 10:03:16.399 25309 INFO rally.benchmark.context.users [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Completed: Enter context: `users`
2014-08-25 10:03:16.474 25309 INFO rally.benchmark.context.users [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Starting: Exit context: `users`
2014-08-25 10:03:16.943 25309 INFO rally.benchmark.context.users [-] Task 31799427-2403-49c0-bb22-674ab82839f1 | Completed: Exit context: `users`

================================================================================
Task 31799427-2403-49c0-bb22-674ab82839f1 is failed.
--------------------------------------------------------------------------------
<type 'exceptions.TypeError'>
__init__() takes at least 4 arguments (6 given)

For more details run:
rally -vd task detailed 31799427-2403-49c0-bb22-674ab82839f1
Using task: 31799427-2403-49c0-bb22-674ab82839f1

[Boris Pavlovic (boris-42)]

I really don't know how can this occur..

We are testing this in gates... (and in gates we have ubuntu) ..

[Timur Nurlygayanov (tnurlygayanov)]

this issue reproduced on 3 different environments (on Ubuntu 13.10 too).
Looks like the errors after some re-factoring or, probably, with requirements.

[Boris Pavlovic (boris-42)]

Timur, the short answer is to use fresh nova python client:

https://review.openstack.org/#/c/119776/

[Boris Pavlovic (boris-42)]

Fixed by this:

https://review.openstack.org/#/c/120847/