I am attempting to install a three-node highly available OpenStack cluster on the Liberty release. I'm on Ubuntu Server 14.04LTS.

The documentation for this process leaves a lot to be desired, and I've spent the entire week scraping together documentation, installing, testing, and troubleshooting. I did manage to get three nodes installed with corosync and Pacemaker, then I added HAProxy, and got the mariaDB Galera server running.

I created the keystone database, and using the authtoken I made it as far as creating the keystone database, installing Apache, creating the keystone service, creating the keystone endpoints, and creating the starter users, projects, and roles.

I'm now at the "verify operation" step, where I'm supposed to request a token by passing all of the OS_ variables on the command line.

When I enter this command, I get back, "An unexpected error prevented the server from fulfilling your request. (HTTP 500) (Request-ID: req-<GUID>)"

I added the --debug directive hoping that I'd get a usable error message that would tell me what boneheaded mistake I'd just made, but the stack trace looks like something is failing deep in the bowels of OpenStack code. Can anyone suggest how to troubleshoot further?

Stack trace:

Making authentication request to http://vsscopenstackcontroller:35357/v3/auth/tokens
"POST /v3/auth/tokens HTTP/1.1" 500 143
Request returned failure status: 500
An unexpected error prevented the server from fulfilling your request. (HTTP 500) (Request-ID: req-e39d4d4f-f01c-47ab-82c8-956b1dbc6fc0)
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 367, in run_subcommand
    self.prepare_to_run_command(cmd)
  File "/usr/lib/python2.7/dist-packages/openstackclient/shell.py", line 340, in prepare_to_run_command
    self.client_manager.auth_ref
  File "/usr/lib/python2.7/dist-packages/openstackclient/common/clientmanager.py", line 189, in auth_ref
    self._auth_ref = self.auth.get_auth_ref(self.session)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/auth/identity/generic/base.py", line 186, in get_auth_ref
    return self._plugin.get_auth_ref(session, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/auth/identity/v3/base.py", line 190, in get_auth_ref
    authenticated=False, log=False, **rkwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/session.py", line 501, in post
    return self.request(url, 'POST', **kwargs)
  File "/usr/lib/python2.7/dist-packages/openstackclient/common/session.py", line 40, in request
    resp = super(TimingSession, self).request(url, method, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/utils.py", line 337, in inner
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/session.py", line 401, in request
    raise exceptions.from_response(resp, method, url)
InternalServerError: An unexpected error prevented the server from fulfilling your request. (HTTP 500) (Request-ID: req-e39d4d4f-f01c-47ab-82c8-956b1dbc6fc0)
clean_up IssueToken: An unexpected error prevented the server from fulfilling your request. (HTTP 500) (Request-ID: req-e39d4d4f-f01c-47ab-82c8-956b1dbc6fc0)
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/openstackclient/shell.py", line 108, in run
    ret_val = super(OpenStackShell, self).run(argv)
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 255, in run
    result = self.run_subcommand(remainder)
  File "/usr/lib/python2.7 ...