Comment 0 for bug 797419

A regular expression error occurs when running Quantum service on a Red Hat installation. The Quantum service is not able to process any requests on account of which this error. The exception trace can be found at http://paste.openstack.org/show/1638/

The offending regular expression appears to be coming from the URL mapper for the "port" resource:

^/tenants\/(?P<tenant_id>[^/]+?)\/networks\/(?P<network_id>[^/]+?)\/port
s\/(?P<id>[^/]+?)\/attachment(?P<.format>[^/]+?)(/)?$

Trying to validate the above regex points to a "group" error.

Possible workaround is to comment out the mapper.connect() calls for the "port" resource in quantum/api/__init__.py

I did not see this error when running Quantum on Ubuntu. Is this an artifact of an incorrect "routes" version that I might be running on RHEL, or is it something else? Any pointers are appreciated.

Thanks,
~Sumit.

Exception trace:

...
...
2011-06-11 17:04:54 DEBUG [routes.middleware] Initialized with method
overriding = True, and path info altering = True
2011-06-11 17:04:54 DEBUG [eventlet.wsgi.server] (19740) wsgi
starting up on http://0.0.0.0:9696/
2011-06-11 17:09:41 DEBUG [quantum.common.wsgi] HERE -
wsgi.Router.__call__
2011-06-11 17:09:41 DEBUG [eventlet.wsgi.server] Traceback (most
recent call last):
  File "/usr/lib/python2.6/site-packages/eventlet/wsgi.py", line 336, in handle_one_response
    result = self.application(self.environ, start_response)
  File "/usr/lib/python2.6/site-packages/paste/urlmap.py", line 203, in __call__
    return app(environ, start_response)
  File "/usr/lib/python2.6/site-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.6/site-packages/routes/middleware.py", line 82, in __call__
    config.environ = environ
 File "/usr/lib/python2.6/site-packages/routes/__init__.py", line 22, in __setattr__
    self.load_wsgi_environ(value)
  File "/usr/lib/python2.6/site-packages/routes/__init__.py", line 51, in load_wsgi_environ
    result = mapper.routematch(path)
  File "/usr/lib/python2.6/site-packages/routes/mapper.py", line 336, in routematch
    result = self._match(url)
  File "/usr/lib/python2.6/site-packages/routes/mapper.py", line 270, in _match
    self.create_regs()
  File "/usr/lib/python2.6/site-packages/routes/mapper.py", line 237, in create_regs
    self._create_regs(*args, **kwargs)
  File "/usr/lib/python2.6/site-packages/routes/mapper.py", line 251, in _create_regs
    route.makeregexp(clist)
  File "/usr/lib/python2.6/site-packages/routes/route.py", line 287, in makeregexp
    self.regmatch = re.compile(reg)
  File "/usr/lib64/python2.6/re.py", line 190, in compile
    return _compile(pattern, flags)
  File "/usr/lib64/python2.6/re.py", line 245, in _compile
    raise error, v # invalid expression
error: bad character in group name
2011-06-11 17:09:41 DEBUG [eventlet.wsgi.server] 10.10.9.99 - -
[11/Jun/2011 17:09:41] "DELETE /v0.1/tenants/totore/networks/000003.json
HTTP/1.1" 500 1735 0.004934