I encountered the same problem when I run keystone with eventlet server by
using *keystone-all* command.
The failure caused by func *load_driver* in *keystone.common.manager*.
try:
driver_manager = stevedore.DriverManager(namespace,
driver_name,
invoke_on_load=True,
invoke_args=args)
return driver_manager.driver
except RuntimeError:
# Ignore failure to load driver using stevedore and continue on.
pass
stevedore failed to load the module, and the RuntimeError's error message
is:
No 'keystone.identity' driver found, looking for 'sql'
while 'keystone.identity' is the value of namespace, and 'sql' is the value
of driver, boht of them are right. I also check the setup.cfg file, it
contains the right lines:
keystone.identity =
ldap = keystone.identity.backends.ldap:Identity
sql = keystone.identity.backends.sql:Identity
Then I build another environment by cloning newest repo and reinstall the
virtualenv. Then, the server starting successfully. *So, I don't know why
stevedore failed.*
But I indeed found there is a bug: If stevedore failed to load a driver,
the backward way doesn't help:
def _load_using_import(driver_name, *args):
return importutils.import_object(driver_name, *args)
# For backwards-compatibility, an unregistered class reference can
# still be used.
return _load_using_import(driver_name, *args)
These code will try to import a driver_name = 'sql', and it failed.
On Sun, May 17, 2015 at 4:25 PM Chenhong Liu liuchenh...@unitedstack.com
wrote:
I encountered the same problem when I run keystone with eventlet server by
using *keystone-all* command.
The failure caused by func *load_driver* in *keystone.common.manager*.
try:
driver_manager = stevedore.DriverManager(namespace,
driver_name,
invoke_on_load=True,
invoke_args=args)
return driver_manager.driver
except RuntimeError:
# Ignore failure to load driver using stevedore and continue on.
pass
stevedore failed to load the module, and the RuntimeError's error message
is:
No 'keystone.identity' driver found, looking for 'sql'
while 'keystone.identity' is the value of namespace, and 'sql' is the
value of driver, boht of them are right. I also check the setup.cfg file,
it contains the right lines:
keystone.identity =
ldap = keystone.identity.backends.ldap:Identity
sql = keystone.identity.backends.sql:Identity
Then I build another environment by cloning newest repo and reinstall the
virtualenv. Then, the server starting successfully. *So, I don't know why
stevedore failed.*
But I indeed found there is a bug: If stevedore failed to load a driver,
the backward way doesn't help:
def _load_using_import(driver_name, *args):
return importutils.import_object(driver_name, *args)
# For backwards-compatibility, an unregistered class reference can
# still be used.
return _load_using_import(driver_name, *args)
These code will try to import a driver_name = 'sql', and it failed.
On Sun, May 17, 2015 at 6:55 AM Scott Drennan sco...@nuagenetworks.net
wrote:
Perhaps an obvious statement, but devstack master was working with
stable/kilo until recently, and as of today, it isn't any more (at least
for me).
The devstack commit Use stevedore for keystone backends on 2014-05-15
changes the way backends are set, and when I did a fresh install today I
ended up with keystone.conf entries like this:
[assignment]
driver = sql
...
[identity]
driver = sql
...
[token]
driver = sql
rather than fully specified module names (e.g. driver =
keystone.identity.backends.sql.Identity)
This caused keystone to fail, with errors
in /var/log/apache2/keystone.log like this:
2015-05-16 21:16:25.786955 mod_wsgi (pid=9296): Exception occurred
processing WSGI script '/var/www/keystone/main'.
2015-05-16 21:16:25.787114 Traceback (most recent call last):
2015-05-16 21:16:25.787189 File /var/www/keystone/main, line 25, in
module
2015-05-16 21:16:25.787409 application =
wsgi_server.initialize_application(name)
2015-05-16 21:16:25.787437 File
/opt/stack/keystone/keystone/server/wsgi.py, line 51, in
initialize_application
2015-05-16 21:16:25.787600 startup_application_fn=loadapp)
2015-05-16 21:16:25.787625 File
/opt/stack/keystone/keystone/server/common.py, line 41, in setup_backends
2015-05-16 21:16:25.787769 drivers = backends.load_backends()
2015-05-16 21:16:25.787795 File
/opt/stack/keystone/keystone/backends.py, line 39, in load_backends
2015-05-16 21:16:25.787946 _IDENTITY_API = identity.Manager()
2015-05-16 21:16:25.789345 File
/opt/stack
