** Description changed:
+ [Impact] [Testcase]
Running on Ubuntu 14.04.
After installing nova from source in either the Liberty release or Mitaka,
with WebOb 1.6.0, running any nova command generated this error:
root@openstack-ubu-controller:~# nova service-list
ERROR (AttributeError): 'unicode' object has no attribute 'get'
The equivalent openstack commands work correctly. After downgrading
WebOb to 1.5.1 AND restarting the nova-api service everything works.
Detailed output from nova -debug service-list with the error:
root@openstack-ubu-controller:~# nova --debug service-list
DEBUG (extension:157) found extension EntryPoint.parse('v2token =
keystoneauth1.loading._plugins.identity.v2:Token')
DEBUG (extension:157) found extension EntryPoint.parse('admin_token =
keystoneauth1.loading._plugins.admin_token:AdminToken')
DEBUG (extension:157) found extension EntryPoint.parse('v3oidcauthcode =
keystoneauth1.loading._plugins.identity.v3:OpenIDConnectAuthorizationCode')
DEBUG (extension:157) found extension EntryPoint.parse('v2password =
keystoneauth1.loading._plugins.identity.v2:Password')
DEBUG (extension:157) found extension EntryPoint.parse('v3password =
keystoneauth1.loading._plugins.identity.v3:Password')
DEBUG (extension:157) found extension EntryPoint.parse('v3oidcpassword =
keystoneauth1.loading._plugins.identity.v3:OpenIDConnectPassword')
DEBUG (extension:157) found extension EntryPoint.parse('token =
keystoneauth1.loading._plugins.identity.generic:Token')
DEBUG (extension:157) found extension EntryPoint.parse('v3token =
keystoneauth1.loading._plugins.identity.v3:Token')
DEBUG (extension:157) found extension EntryPoint.parse('password =
keystoneauth1.loading._plugins.identity.generic:Password')
DEBUG (session:248) REQ: curl -g -i -X GET http://10.0.1.3:5000/v2.0 -H
"Accept: application/json" -H "User-Agent: keystoneauth1/2.3.0
python-requests/2.9.1 CPython/2.7.6"
INFO (connectionpool:207) Starting new HTTP connection (1): 10.0.1.3
DEBUG (connectionpool:387) "GET /v2.0 HTTP/1.1" 200 334
- DEBUG (session:277) RESP: [200] Content-Length: 334 Vary: X-Auth-Token
Keep-Alive: timeout=5, max=100 Server: Apache/2.4.7 (Ubuntu) Connection:
Keep-Alive Date: Fri, 18 Mar 2016 12:41:58 GMT Content-Type: application/json
x-openstack-request-id: req-a0c68cd5-ea29-4391-942f-130cc69d15f8
+ DEBUG (session:277) RESP: [200] Content-Length: 334 Vary: X-Auth-Token
Keep-Alive: timeout=5, max=100 Server: Apache/2.4.7 (Ubuntu) Connection:
Keep-Alive Date: Fri, 18 Mar 2016 12:41:58 GMT Content-Type: application/json
x-openstack-request-id: req-a0c68cd5-ea29-4391-942f-130cc69d15f8
RESP BODY: {"version": {"status": "stable", "updated":
"2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type":
"application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links":
[{"href": "http://10.0.1.3:5000/v2.0/";, "rel": "self"}, {"href":
"http://docs.openstack.org/";, "type": "text/html", "rel": "describedby"}]}}
DEBUG (v2:63) Making authentication request to
http://10.0.1.3:5000/v2.0/tokens
DEBUG (connectionpool:387) "POST /v2.0/tokens HTTP/1.1" 200 2465
DEBUG (session:248) REQ: curl -g -i -X GET
http://10.0.1.3:8774/v1.1/b77d640e127e488fb42a7c0716ba53a5 -H "User-Agent:
python-novaclient" -H "Accept: application/json" -H "X-Auth-Token:
{SHA1}381893576ad46c62b587f4963d769b89441b919a"
INFO (connectionpool:207) Starting new HTTP connection (1): 10.0.1.3
DEBUG (connectionpool:387) "GET /v1.1/b77d640e127e488fb42a7c0716ba53a5
HTTP/1.1" 404 112
- DEBUG (session:277) RESP: [404] Date: Fri, 18 Mar 2016 12:41:59 GMT
Connection: keep-alive Content-Type: application/json; charset=UTF-8
Content-Length: 112 X-Compute-Request-Id:
req-f10a2016-9a88-48fd-af1d-5f800fc9e11a
+ DEBUG (session:277) RESP: [404] Date: Fri, 18 Mar 2016 12:41:59 GMT
Connection: keep-alive Content-Type: application/json; charset=UTF-8
Content-Length: 112 X-Compute-Request-Id:
req-f10a2016-9a88-48fd-af1d-5f800fc9e11a
RESP BODY: {"message": "The resource could not be found.<br /><br />\n\n\n",
"code": "404 Not Found", "title": "Not Found"}
DEBUG (shell:894) 'unicode' object has no attribute 'get'
Traceback (most recent call last):
- File "/usr/local/lib/python2.7/dist-packages/novaclient/shell.py", line
892, in main
- OpenStackComputeShell().main(argv)
- File "/usr/local/lib/python2.7/dist-packages/novaclient/shell.py", line
726, in main
- api_version = api_versions.discover_version(self.cs, api_version)
- File "/usr/local/lib/python2.7/dist-packages/novaclient/api_versions.py",
line 267, in discover_version
- client)
- File "/usr/local/lib/python2.7/dist-packages/novaclient/api_versions.py",
line 248, in _get_server_version_range
- version = client.versions.get_current()
- File "/usr/local/lib/python2.7/dist-packages/novaclient/v2/versions.py",
line 83, in get_current
- return self._get_current()
- File "/usr/local/lib/python2.7/dist-packages/novaclient/v2/versions.py",
line 57, in _get_current
- return self._get(url, "version")
- File "/usr/local/lib/python2.7/dist-packages/novaclient/base.py", line 297,
in _get
- _resp, body = self.api.client.get(url)
- File "/usr/local/lib/python2.7/dist-packages/keystoneauth1/adapter.py",
line 173, in get
- return self.request(url, 'GET', **kwargs)
- File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line
92, in request
- raise exceptions.from_response(resp, body, url, method)
- File "/usr/local/lib/python2.7/dist-packages/novaclient/exceptions.py",
line 274, in from_response
- message = error.get('message')
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/shell.py", line
892, in main
+ OpenStackComputeShell().main(argv)
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/shell.py", line
726, in main
+ api_version = api_versions.discover_version(self.cs, api_version)
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/api_versions.py",
line 267, in discover_version
+ client)
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/api_versions.py",
line 248, in _get_server_version_range
+ version = client.versions.get_current()
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/v2/versions.py",
line 83, in get_current
+ return self._get_current()
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/v2/versions.py",
line 57, in _get_current
+ return self._get(url, "version")
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/base.py", line 297,
in _get
+ _resp, body = self.api.client.get(url)
+ File "/usr/local/lib/python2.7/dist-packages/keystoneauth1/adapter.py",
line 173, in get
+ return self.request(url, 'GET', **kwargs)
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line
92, in request
+ raise exceptions.from_response(resp, body, url, method)
+ File "/usr/local/lib/python2.7/dist-packages/novaclient/exceptions.py",
line 274, in from_response
+ message = error.get('message')
AttributeError: 'unicode' object has no attribute 'get'
ERROR (AttributeError): 'unicode' object has no attribute 'get'
+ Since nova-api must be restarted for this to either take effect or go
+ away (with the WebOb downgrade) this appears to be an issue with the
+ nova-api process. The failing message from the api service is 112 bytes
+ long while the successful one (using downgraded WebOb) is 52 bytes long.
- Since nova-api must be restarted for this to either take effect or go away
(with the WebOb downgrade) this appears to be an issue with the nova-api
process. The failing message from the api service is 112 bytes long while the
successful one (using downgraded WebOb) is 52 bytes long.
+ [Regression Potential]
+ The regression potential is minimal. The patch is cherry-picked without
change from stable/newton to stable/mitaka, and I've already tested it in a ppa.
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https://bugs.launchpad.net/bugs/1559072
Title:
[SRU] exceptions.from_response with webob 1.6.0 results in
"AttributeError: 'unicode' object has no attribute 'get'"
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