[ovirt-users] Hosted engine vs. hypervisor hosts naming on hyperconverged setup

Will Dennis wdennis at nec-labs.com
Sat Dec 26 16:27:54 UTC 2015


Hi all,

I have a hyperconverged setup where I have a hosted engine that runs on one of three hosts, which are named “ovirt-node-[01,02,03]” —

[root at ovirt-node-01 ~]# hosted-engine --vm-status | grep -e "Hostname" -e "Engine"
Hostname                           : ovirt-node-01
Engine status                      : {"health": "good", "vm": "up", "detail": "up"}
Hostname                           : ovirt-node-02
Engine status                      : {"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown"}
Hostname                           : ovirt-node-03
Engine status                      : {"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown”}

When I deployed the hosted engine, I gave it a separate hostname/IP, as I expected it would need it (hostname = “ovirt-engine-01”) 

However, when I look at the hosts in the oVirt web admin screen, I see that the first host has the name “ovirt-engine-01” whereas it has the hostname of “ovirt-node-01”

I also notice that even though the 1st host is showing the number of VM’s running as “1”, when I click on the “VMs” node, there are no VMs showing.

Not sure of what “should be”, but, would expect that the first host would have a name equal to its DNS hostname (like the other two do), and that in VMs I would see the engine VM. But is that not how a hosted engine setup works?

And if not, if the engine VM migrates over to another host, will that host gain the name "“ovirt-engine-01”?

I ask this now because I want to set up a storage domain on these hosts using GlusterFS, and I have to select a host to base the connection on. In the “Use Host” dropbox, I currently see the values:

ovirt-node-03
ovirt-node-02
ovirt-engine-01

I would expect that the last entry would be for “ovirt-host-01”, not “ovirt-engine-01”… 

I don’t want to set up the storage domain until I figure this out, so as to prevent potential breakage...

Thanks,
Will


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