May I suggest you look at Lago[1] and ovirt-system-tests[2] to set up everything you need? I use it on a daily basis on F25.
HTH, Y. [1] http://lago.readthedocs.io/en/latest/README.html [2] http://ovirt-system-tests.readthedocs.io/en/latest/ On Mon, Feb 27, 2017 at 10:43 AM john <vor...@internode.on.net> wrote: > Hi everybody, > > I'm having a nightmarish time trying to test oVirt and RHEV on my main > machine which i just upgraded to Fedora 25 (before realising oVirt is > still on F24). Nevertheless, it seems to me I shouldn't have a problem > if i just use F24/RHEV/oVirt nodes running under my F25 machine. > > The F25 physical host is a pretty powerful machine, 8 (HT) cores, SSD > storage, 16 GB ram (bit light on RAM but this should be just sufficient > to run the engine & host, and say one test host) > > Main problem is that i just cannot seem to add a new host to this > cluster. > > I am using the F25 physical host to export NFS4 storage (on SSD), > for the oVirt cluster. > > So currently, I have, all on one physical machine: > > 1) ovirt-engine-host vm - this is the F24 host which i ran hosted-engine > --deploy in. So, if the physical host is layer 0 (L0), this is L1. > > VM has been given 3 CPUs, 6GB of RAM > > 2) ovirt-engine vm- this is the vm inside ovirt-engine-host, and this vm > is the main ovirt admin engine/appliance. The image for this appliance > was obtained from: ovirt-engine-appliance-4.1-20170201.1.fc24.noarch.rpm > So this vm is at L2. > > According to the ovirt Manager web admin page, this is running: > oVirt Engine Version:4.1.0.3-1.el7.centos > > When i ran the hosted-engine --deploy, I specified 2 CPUs, 4GB of RAM, > however, when i look at this host in the management webpqage, it > reports 3 CPU, and 6GB of RAM, so the hosted engine deploy script seems > to have ignored my wishes and given this vm the full resources of its > host vm, which is a little annoying but shouldnt be causing a problem at > this stage. > > Basically, this seems to be working. I can login to the oVirt Manager > webpage and see my whole datacenter, storage, cluster, etc. > > I've been able to add a data domain, and an iso storage domain, and > when i did this, the new data storage domain became the Master, and the > hosted_storage domain (holding my ovirt-engine host) appeared out of > nowhere in the UI. So i now have 3 storage domains - the hosted_engine, > the master, and iso storage. > > > So anyway, this is where the problems start. No matter what I try, I > can't seem to add a host to this cluster, which seems to be working > fine otherwise. > > On all my F24 hosts Ive installed python2-dnf which is required by > oVirt on F24, installed nfs-utils so it can mount nfs shares, enabled > ovirt repository, setup static IP address, tweaked /etc/hosts so all my > hosts can see each other without relying on the physical KVM host's DNS. > > I have tried: > > 1) create a new F24 VM under my physical host, so, at L1. I called this > ovirt-host-01. I have enabled CPU host-passthrough in KVM so this VM > can also run nested VMs, which is of course, the main objective. I've > given this VM 3 CPUs, and 6GB of RAM. Go to Management webpage and try > to add this as a new host. > > It ALMOST succeeds, but at the end it fails to mount my hosted_storage > domain. It correctly mounts the main master data domain, and the iso > domain, but fails to mount the hosted_storage domain. I can mount this > domain manually, and I just can't work out why this fails, it's > incredibly frustrating. > > 2) create a new host using the latest oVirt node iso: > ovirt-node-ng-installer-ovirt-4.0-2017011712.iso > > node has 25 GB disk,3 CPUs, 6GB of RAM. Cockpit admin webpage reports > it is an "oVirt Node 4.0.6.1" > > The node seems to be running fine, but i can't seem to add it to my > main cluster. The VDSM service is failing because it's not a member of > any domain. The main "System" tab in CockPit lists all the details, > but for Domain, it says: "Join Domain". Nowhere in this CockPit admin > webpage does there appear to be any way to actually specify the domain > to join. > > So, I go to my main engine Admin page, and try to add this node as a > new host. It attempts to do so, but fails, after trying to trying to > install the package collectd, which is in epel. So i enable epel, even > though I'm sure something must be drastically wrong here, because this > oVirt node should have everything it needs already installed on it. > Trying to reinstall again, it fails with the exact same error in the > deployment log, saying collectd cannot be found even though it is > available from epel & epel repo is enabled. > > > Summary: > > This is incredibly frustrating. Why is it so hard to add a host to an > oVirt cluster. This should be child's play. What is going on? > > I have seen another email to this list saying you have to run hosted > engine deploy on bare metal (L0), so the engine vm is at L1, or the HA > features of vdsm are pointless, but I'm not clear why that is, I was > hoping i should be able to get some sort of power management setup > eventually, KVM & virsh should be able to provide full power management > of the hosts even if i had to kludge together a few scripts myself. > > Plus that still shouldn't prevent me from setting up this test cluster > surely. I know i haven't configured power management properly on the > hosts i'm adding, but, so what, they should at least work for testing > purposes. > > If we set aside the power management issues for now, I can't see why > there should be issues setting up this whole cluster under KVM on a > single physical host. The nested virtualisation is working perfectly. > > Apologies for the long email, but i thought it best to get most of the > details out there, so ppl won't have to go back & forth asking questions > just to see what i am trying to do. Any questions re details i've left > out though, pls feel free to ask. > > If anyone can offer any halp or advice it'd be greatly appreciated, > ta and cheers! > > J > > > > > > > > > > > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >
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