On Fri, May 26, 2017 at 1:44 PM, Andy Gibbs <andyg1001(a)hotmail.co.uk> wrote:
Hi,
I am trying to install a new server with oVirt. I have previously had
relatively good success with the all-in-one plugin on oVirt 3.6, but it is
time to move to newer things and I am trying to get oVirt 4.1 installed on
a clean platform.
I am unfortunately finding this very difficult and I hope someone here can
help guide me in the right direction :o)
My intention is to use oVirt Node as the base OS on the server, install
Hosted Engine on it and also have the storage domains hosted on it too.
What I have achieved so far is...
1. Installed oVirt Node 4.1.2, generally using the default configuration
2. Changed the performance profile to "virtual-host" inside the web
interface as per documentation suggestion
3. Created a new volume group, pool for thin volumes, and finally an
XFS-formatted volume that mounts on /srv which will be used for the storage
domain(s)
4. From the console on the node, I have created /srv/ovirt/data and
/srv/ovirt/iso directories with ownership vdsm:kvm and access rights 0755,
which I have then added to /etc/exports with the following configuration:
rw,sync,no_subtree_check,all_squash,anonuid=36,anongid=36
5. When I install Hosted Engine from the Node web interface, I select NFS4
for the storage and provide the correct host:/path. Other than that, and
setting up static network details and email details, I follow the default
prompts of the Hosted Engine setup.
6. The Hosted Engine setup seems to run through to completion, and I get a
successfully installed message at the end
7. I open up the firewall on port 2049 for tcp and udp; this is done
**after** the engine setup is complete since the setup procedure alters the
firewall configuration and my modifications otherwise get lost. I have
confirmed that it is possible to mount these nfs shares both on the node
itself and on the engine vm (once it is running).
8. I can log into the Hosted Engine web interface.
This is now where I run into problems.
The first problem is that no storage domains are registed, nor can I add
any. I get warnings like "The hosted engine storage domain doesn't exist.
It will be imported automatically upon data center activation, which
requires adding an initial storage domain to the data center". However
attempting to do so gives errors like: "VDSM server.domain command
CreateStoragePoolVDS failed: Cannot acquire host id:
(u'fcdee6d8-c6fc-45fb-a60c-1df4b298f75a', SanlockException(22, 'Sanlock
lockspace add failure', 'Invalid argument'))". During Hosted Engine
setup
it seems that the /srv/ovirt/data storage domain is created, but I cannot
import it. I also tried to create a new storage domain at /srv/ovirt/iso
and met with similar results: it creates it, but won't attach to it.
The next problem is that I can't restart the server from the Node web
interface. Clicking on the "Restart" Power Options button simply causes
the whole system to hang. It appears to shut down the Engine VM ok, it
also terminates all ssh connections, but after that the console screen on
the server just goes black and sits there. You can still ping the server
from the network but can't do anything or see anything. Fortunately the
Dell server has a remote console feature that enables me to manually
restart the server, but this is not ideal at all. This problem only occurs
once the Hosted Engine is installed; before this is done, the "Restart"
button works perfectly.
The final problem is that once the server has restarted, it takes about 10
minutes before the Node starts the Hosted Engine. Is this correct? I
would have thought that once the Node is up, its first responsibility would
be to get the Hosted Engine up, but you can see from the dmesg output that
on average 530 seconds elapses before kvm is started. Is there anything I
can do to speed this up?
Any help would be gratefully received. Or if anyone knows of a "oVirt for
Dummies" (TM) style step-by-step installation guide that installed Node,
Hosted Engine and the storage domains all on one machine, I would love to
see that!!
Hi, so if I understood correctly, you're trying to work on a single host
deployment right?
Or are you just trying to replace the bare metal all-in-one 3.6 in a
context with more hosts?
If this is the case, can you share your use case? I'm asking because for
single host installations there are other solutions that may fit better
than oVirt, like virt-manager or kimchi (
https://github.com/kimchi-project/kimchi )
Many thanks in advance!
Andy
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