Devstack Juno: ImportError: No module named persistence.backends.sql

Question

Deploying openstack using devstack ran across this error when I use keystone commands.

[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] Traceback (most recent call last):
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/var/www/keystone/main", line 51, in
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] drivers = service.load_backends()
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/service.py", line 58, in load_backends
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] token_api=token.Manager(),
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/common/dependency.py", line 166, in wrapper
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] self.wrapped_init(*args, **kwargs)
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/common/dependency.py", line 106, in wrapped_init
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] init(self, *args, **kwargs)
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/token/core.py", line 113, in init
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] super(Manager, self).init(CONF.token.driver)
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/common/manager.py", line 70, in init
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] self.driver = importutils.import_object(driver_name)
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/openstack/common/importutils.py", line 38, in import_object
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] return import_class(import_str)(*args, **kwargs)
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] File "/opt/stack/keystone/keystone/openstack/common/importutils.py", line 28, in import_class
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] import(mod_str)
[Thu Nov 27 09:20:59 2014] [error] [client 172.20.14.15] ImportError: No module named persistence.backends.sql

Answer 1

Try to remove

driver = keystone.token.persistence.backends.sql.Token

in /etc/keystone/keystone.conf