This is due to keystone is not getting started properly and therefore port 35357 is not in listening mode.
This seems to be anomalous behavior of service keystone.
I am mentioning steps which have worked on my system for havana installtion on Ubuntu 12.04 Kernel version 3.2.0-67-generic. After a day of headache around this issue. Try these steps, preferably in the same order.
1) Remove keystone package:-
apt-get remove keystone
2) Reboot your system
reboot
3) After reboot again INSTALL KEYSTONE.
apt-get install keystone
4) Check status of keystone service
service keystone status
It will show start/running
5) Now do the necessary changes you want to do in /etc/keystone/keystone.conf
after making changes in conf file DO NOT RESTART KEYSTONE SERVICE
Use stop and start command to make an effect of restart but don't restart.
service keystone stop
service keystone start
For further help, pasting a dump of my CLI :-
Setting up keystone (1:2013.2.3-0ubuntu1~cloud0) ...
keystone start/running, process 1490
root@controller:~# vim /etc/keystone/keystone.conf
root@controller:~# export SERVICE_ENDPOINT=http://controller:35357/v2.0
root@controller:~# export SERVICE_TOKEN=123456
root@controller:~# service keystone status
keystone start/running, process 1490
root@controller:~# keystone tenant-create --name=admin --description="Admin Tenant"
Invalid OpenStack Identity credentials.
root@controller:~# service keystone stop
keystone stop/waiting
root@controller:~# service keystone start
keystone start/running, process 1516
root@controller:~# keystone tenant-create --name=admin --description="Admin Tenant"
+-------------+----------------------------------+
| Property | Value |
+-------------+----------------------------------+
| description | Admin Tenant |
| enabled | True |
| id | 6f0a2e25312448959faae2170a49c145 |
| name | admin |
+-------------+----------------------------------+
I am getting the same problem and I am trying to install JUNO. If you get a solution for this please share.
i have same problem. Did you solve ? if you get solution please share