Comment 25 for bug 1582585

and for the mitaka-proposed, looks like the same.

the keystone version is:

```
root@ubuntu:~# apt-cache policy keystone
keystone:
  Installed: 2:9.3.0-0ubuntu3.1~cloud0
  Candidate: 2:9.3.0-0ubuntu3.1~cloud0
  Version table:
 *** 2:9.3.0-0ubuntu3.1~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ trusty-updates/mitaka/main amd64 Packages
        100 /var/lib/dpkg/status
     1:2014.1.5-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
     1:2014.1.3-0ubuntu2.1 0
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
     1:2014.1-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
```

but listing users still doesn't take much time, about 10 seconds:

```
root@ubuntu:~# time openstack user list --domain default
real 0m9.662s
user 0m1.284s
sys 0m0.232s
```

so seems that I can't reproduce this problem, do you have any suggestions?