Description of problem:
In upgrade service by service with live compute upgrade we give instructions for multiple controllers when there is only one controller in a setup (for now).
for example, the following line:
1. On each controller node, stop any running nova services:
controller node = the host we install the AIP and other nova services. and there is only one (HA is not implemented yet)
the document continues the same way and it's confusing since the user might think the document means all computes as well as the controller (leading to wrong commands and stooping services on the computes which would not make it live upgrade any more)
Version-Release number of selected component (if applicable):
rhos4 -> rhoe5
Steps to Reproduce:
1. follow: Procedure 2. Upgrading compute controllers
I think that we are not clear in what we call controller and what we call compute and it's really confusing when doing the upgrade.
compute: a host where the instances are running on and has the nova compute service installed
controller: a host that has nova control services such as AIP
[root@gizmo ~]# rpm -qa |grep nova
[root@greta ~]# rpm -qa |grep nova
Assigning to Summer Long, as the designated author for Nova.
Hi Dafna, the issue is that documents don't use the term 'nova' to mean Compute. Nova is the old project name, or the client, but not the component name; we switched over a couple of versions back (were told to do so by project management).
BTW, the guide has now been split into articles, and all topics are no longer valid. Assigning back to Don, since he's been juggling the content. (aplogies for the back and forth).