I have installed odoo on ubuntu 14.04 server. the server is running with 4 workers. and db_maxconn=1000.
and have more then 200 users on it.
but while starting the server it shows me the following error.

2015-01-21 06:21:01,280 1924 ERROR None openerp.http: Exception during JSON request handling.
Traceback (most recent call last):
  File "/opt/odoo/openerp/http.py", line 518, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/odoo/openerp/http.py", line 1358, in _dispatch_nodb
    func, arguments = self.nodb_routing_map.bind_to_environ(request.httprequest.environ).match()
  File "/usr/local/lib/python2.7/dist-packages/werkzeug/routing.py", line 1430, in match
    raise NotFound()
NotFound: 404: Not Found

I think it is because of the database, but can't figure it out. can any one spread light on it?