Hi,

I'm using Juno on ubuntu 14.04 and I'm not able to log in anymore via the dashboard. I'm getting errors like "An error occurred authenticating. Please try again later." " not able to authenticate with any project"

keystone-all.log

2014-10-28 15:24:35.833 3358 ERROR keystone.common.wsgi [-] (OperationalError) (1040, 'Too many connections') None None
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi Traceback (most recent call last):
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 223, in __call__
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     result = method(context, **params)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/token/controllers.py", line 100, in authenticate
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     context, auth)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/token/controllers.py", line 287, in _authenticate_local
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     username, CONF.identity.default_domain_id)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/identity/core.py", line 202, in wrapper
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     return f(self, *args, **kwargs)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/identity/core.py", line 213, in wrapper
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     return f(self, *args, **kwargs)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/identity/core.py", line 600, in get_user_by_name
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     ref = driver.get_user_by_name(user_name, domain_id)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/identity/backends/sql.py", line 146, in get_user_by_name
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     session = sql.get_session()
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/common/sql/core.py", line 192, in get_session
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     return _get_engine_facade().get_session(expire_on_commit=expire_on_commit)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/keystone/common/sql/core.py", line 176, in _get_engine_facade
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     _engine_facade = db_session.EngineFacade.from_config(CONF)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/oslo/db/sqlalchemy/session.py", line 795, in from_config
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     retry_interval=conf.database.retry_interval)
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi   File "/usr/lib/python2.7/dist-packages/oslo/db/sqlalchemy/session.py", line 711, in __init__
2014-10-28 15:24:35.833 3358 TRACE keystone.common.wsgi     **engine_kwargs)
2014-10-28 15:24 ...