question about installing Rally on OpenStack I have a quick question that I'm going to install Rally to benchmark OpenStack and I've read it's documents here. Now, I don't know if I install Rally on a vm in OpenStack that there's no service on it, Rally will work properly? Would Rally benchmark services on OpenStack?

You can install Rally on anywhere which can talk to Openstack REST APIs.

Rally is using OpenStack API. actually python clients like this one <

Rally should have HTTP access to this OpenStack API it means that:

1) No Rally shouldn't work together on the same servers where OpenStack works

2) It should be have access to OpenStack

+Thanks a lot to "boris-42" and "yingjun" on "#openstack-rally" channel for their help and guidance.