Comment 6 for bug 1544839

I use python-keystoneclient==2.1.2. This is the latest version available in pypi.

> This obviously passes the gate in Rally and is the recommended way to construct clients now.
As I said Zaqar-related jobs in Rally project pass because they don't use high load like in "zaqar-zaqar.yaml". Once you increase the numbers in them, they will fail too.
Any of them will not fail, if Rally is downgraded to patch older than https://review.openstack.org/#/c/274977/.
It's easy not to trust me. But it's also easy to reproduce the problem locally in DevStack:
1. Enable Rally and Zaqar plugins in your "local.conf".
2. Also to download fresh versions of software, add "RECLONE=yes" and "PIP_UPGRADE=True" lines to your "local.conf".
2. Start DevStack.
3. In the terminal run: "rally task start /opt/stack/zaqar/rally-jobs/zaqar-zaqar.yaml". The job will fail.
4. cd to "/opt/stack/rally" and run: "git review -d 274700". This will download Rally just before https://review.openstack.org/#/c/274977/ patch.
5. In the terminal run: "rally task start /opt/stack/zaqar/rally-jobs/zaqar-zaqar.yaml". The job will pass.

If the problem occurs only on high load, I guess, there might be a race condition involved somewhere.