ERROR: n/a (HTTP 400) when run nova

Try:

nova --debug list

you should be able to see the url that is failing. Probably your endpoints are misconfigured and it is connecting to the wrong url.

Vish

Here the output of debug command:

connect: (172.17.2.203, 5000)
send: 'POST /v2.0/tokens HTTP/1.1\r\nHost: 172.17.2.203:5000\r\nContent-Length: 117\r\ncontent-type: application/json\r\naccept-encoding: gzip, deflate\r\naccept: application/json\r\nuser-agent: python-novaclient\r\n\r\n{"auth": {"tenantName": "openstackDemo", "passwordCredentials": {"username": "adminUser", "password": "secretword"}}}'
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Type: application/json
header: Vary: X-Auth-Token
header: Date: Thu, 26 Apr 2012 02:28:44 GMT
header: Transfer-Encoding: chunked
connect: (172.17.2.203, 8774)
connect fail: (u'172.17.2.203', 8774)
DEBUG (shell:416) n/a (HTTP 400)
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/novaclient/shell.py", line 413, in main
    OpenStackComputeShell().main(sys.argv[1:])
  File "/usr/lib/python2.7/dist-packages/novaclient/shell.py", line 364, in main
    args.func(self.cs, args)
  File "/usr/lib/python2.7/dist-packages/novaclient/v1_1/shell.py", line 520, in do_list
    utils.print_list(cs.servers.list(search_opts=search_opts), columns,
  File "/usr/lib/python2.7/dist-packages/novaclient/v1_1/servers.py", line 279, in list
    return self._list("/servers%s%s" % (detail, query_string), "servers")
  File "/usr/lib/python2.7/dist-packages/novaclient/base.py", line 71, in _list
    resp, body = self.api.client.get(url)
  File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 136, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 124, in _cs_request
    **kwargs)
  File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 107, in request
    raise exceptions.from_response(resp, body)
BadRequest: n/a (HTTP 400)
ERROR: n/a (HTTP 400)

It can not connect to host IP 172.17.2.203:8774 but here is the detail of my tokens. Is this look correct?

{
    "access": {
        "serviceCatalog": [
            {
                "endpoints": [
                    {
                        "adminURL": "http://172.17.2.203:8776/v1/735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "internalURL": "http://172.17.2.203:8776/v1/735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "publicURL": "http://172.17.2.203:8776/v1/735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "region": "RegionOne"
                    }
                ],
                "endpoints_links": [],
                "name": "volume",
                "type": "volume"
            },
            {
                "endpoints": [
                    {
                        "adminURL": "http://127.0.0.1:8080/",
                        "internalURL": "http://127.0.0.1:8080/v1/AUTH_735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "publicURL": "http://127.0.0.1:8080/v1/AUTH_735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "region": "RegionOne"
                    }
                ],
                "endpoints_links": [],
                "name": "swift",
                "type": "storage"
            },
            {
                "endpoints": [
                    {
                        "adminURL": "http://172.17.2.203:9292/v1",
                        "internalURL": "http://172.17.2.203:9292/v1",
                        "publicURL": "http://172.17.2.203:9292/v1",
                        "region": "RegionOne"
                    }
                ],
                "endpoints_links": [],
                "name": "glance",
                "type": "image"
            },
            {
                "endpoints": [
                    {
                        "adminURL": "http://172.17.2.203:8774/v2/735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "internalURL": "http://172.17.2.203:8774/v2/735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "publicURL": "http://172.17.2.203:8774/v2/735ffa39e5cd4b8b8f30414ce4dcc2cd",
                        "region": "RegionOne"
                    }
                ],
                "endpoints_links": [],
                "name": "nova",
                "type": "compute"
            },
            {
                "endpoints": [
                    {
                        "adminURL": "http://172.17.2.203:5000/v2.0",
                        "internalURL": "http://172.17.2.203:5000/v2.0",
                        "publicURL": "http://172.17.2.203:35357/v2.0",
                        "region": "RegionOne"
                    }
                ],
                "endpoints_links": [],
                "name": "keystone",
                "type": "identity"
            }
        ],
        "token": {
            "expires": "2012-04-27T02:26:02Z",
            "id": "987bea4f08274405adad8a361067b371",
            "tenant": {
                "description": "Service Tenant",
                "enabled": true,
                "id": "735ffa39e5cd4b8b8f30414ce4dcc2cd",
                "name": "service"
            }
        },
        "user": {
            "id": "c9c8c911c9f64eb1aad01b2792a99ce7",
            "name": "nova",
            "roles": [
                {
                    "id": "e7f1492647894b179fb1002894f8f497",
                    "name": "admin"
                }
            ],
            "roles_links": [],
            "username": "nova"
        }
    }
}

here is my env, you can refer:

export OS_USERNAME=admin
export OS_PASSWORD=password
export SERVICE_ENDPOINT=http://localhost:35357/v2.0
export SERVICE_TOKEN=ADMIN

#for nova client
export NOVA_AUTH_STRATEGY=keystone
export NOVA_USERNAME=admin
export NOVA_PASSWORD=password
export NOVA_PROJECT_ID=admin
export NOVA_URL=http://localhost:35357/v2.0
export NOVA_VERSION=1.1

#for glance client
export OS_AUTH_USER=admin
export OS_AUTH_KEY=password
export OS_AUTH_TENANT=admin
export OS_AUTH_URL=http://localhost:35357/v2.0
export OS_AUTH_STRATEGY=keystone

The IP is correct. Maybe Ubuntu 12.04 beta doesn't complete so there're some errors. I will make a fresh install with the final version.
Thank for your help :)

Thanks Vish Ishaya, that solved my question.