Re: [ovirt-users] 4.2 downgrade
by Yaniv Kaul
On Sep 30, 2017 8:09 AM, "Ryan Mahoney" <ryan(a)beaconhillentertainment.com>
wrote:
Accidentally upgraded a 4.0 environment to 4.2 (didn't realize the "master"
repo was development repo). What's my chances/best way if possible to roll
back to 4.0 (or 4.1 for that matter).
There is no roll back to oVirt installation.
That being said, I believe the Alpha quality is good. It is not feature
complete and we of course have more polishing to do, but it's very usable
and we will continue to ship updates to it. Let us know promptly what
issues you encounter.
Y.
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Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
7 years, 2 months
DR with oVirt: no data on OVF_STORE
by Luca 'remix_tj' Lorenzetto
Hello,
i'm experimenting a DR architecture that involves block storage
replication from the storage side (EMC VNX 8000).
Our idea is to import the replicated data storage domain on another
datacenter, managed by another engine, with the option "Import Domain"
and then import all the vms contained.
The idea works, but we encountered an issue that we don't want to have
again: we imported an SD and *no* vm were listed in the tab "VM
Import". Disks were available, but no VM informations.
What we did:
- on storage side: split the replica between the main disk in Site A
and the secondary disk Site B
- on storage side: added the disk to the storage group of the
"recovery" cluster
- from engine UI: Imported storage domain, confirming that i want to
activate even if seems to be attached to another DC
- from engine UI: move out from maintenance the storage domain and
click on the "VM Import" tab of the new SD.
What happened: *no* vm were listed
To identify better what's happening, I've found here some indications
on how lvm for block storage works and I identified the command on how
to find and read the OVF_STORE.
Looking inside the OVF_STORE has shown why no vm were listed: it was
empty (no .ovf file listed with tar tvf)
So, without the possibility import vms, i did a rollback, detaching
the storage domain and re-establishing the replication between the
main site and the DR site.
Then, after a day of replications (secondary volume is aligned every
30 minutes), i tried again and i've been able to import also vms
(OVF_STORE was populated).
So my question is: how to i force to have OVF_STORE to be aligned at
least as frequent as the replication? I want to have the VM disks
replicated to the remote site along with VM OVF informations.
Is possible to have OVF_STORE informations aligned when a VM is
created/edited or with a scheduled task? Is this so I/O expensive?
Thank you,
Luca
--
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)
"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)
Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com>
7 years, 2 months
oVirt 4.2 hosted-engine command damaged
by Julián Tete
I updated my lab environment from oVirt 4.1.x to oVirt 4.2 Alpha
The hosted-engine command has been corrupted
An example:
hosted-engine --vm-status
Traceback (most recent call last):
File "/usr/lib64/python2.7/runpy.py", line 162, in _run_module_as_main
"__main__", fname, loader, pkg_name)
File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/vm_status.py",
line 213, in <module>
if not status_checker.print_status ():
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/vm_status.py",
line 110, in print_status
all_host_stats = self._get_all_host_stats ()
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/vm_status.py",
line 75, in _get_all_host_stats
all_host_stats = ha_cli.get_all_host_stats ()
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
line 154, in get_all_host_stats
return self.get_all_stats (self.StatModes.HOST)
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
line 99, in get_all_stats
stats = broker.get_stats_from_storage (service)
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 147, in get_stats_from_storage
for host_id, data in six.iteritems (result):
File "/usr/lib/python2.7/site-packages/six.py", line 599, in iteritems
return d.iteritems (** kw)
AttributeError: 'NoneType' object has no attribute 'iteritems'
hosted-engine --set-maintenance --mode = none
Traceback (most recent call last):
File "/usr/lib64/python2.7/runpy.py", line 162, in _run_module_as_main
"__main__", fname, loader, pkg_name)
File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/set_maintenance.py",
line 88, in <module>
if not maintenance.set_mode (sys.argv [1]):
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/set_maintenance.py",
line 76, in set_mode
value = m_global,
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
line 240, in set_maintenance_mode
str (value))
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
line 187, in set_global_md_flag
all_stats = broker.get_stats_from_storage (service)
File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 147, in get_stats_from_storage
for host_id, data in six.iteritems (result):
File "/usr/lib/python2.7/site-packages/six.py", line 599, in iteritems
return d.iteritems (** kw)
AttributeError: 'NoneType' object has no attribute 'iteritems'
hosted-engine --vm-start
VM exists and its status is Up
Hardware
Manufacturer: HP
Family: ProLiant
Product Name: ProLiant BL460c Gen8
CPU Model Name: Intel (R) Xeon (R) CPU E5-2667 v2 @ 3.30GHz
CPU Type: Intel SandyBridge Family
CPU Sockets: 2
CPU Cores per Socket: 8
CPU Threads per Core: 2 (SMT Enabled)
Software:
OS Version: RHEL - 7 - 4.1708.el7.centos
OS Description: CentOS Linux 7 (Core)
Kernel Version: 4.12.0 - 1.el7.elrepo.x86_64
KVM Version: 2.9.0 - 16.el7_4.5.1
LIBVIRT Version: libvirt-3.2.0-14.el7_4.3
VDSM Version: vdsm-4.20.3-95.git0813890.el7.centos
SPICE Version: 0.12.8 - 2.el7.1
GlusterFS Version: glusterfs-3.12.1-2.el7
CEPH Version: librbd1-0.94.5-2.el7
7 years, 2 months
Re: [ovirt-users] Engine crash, storage won't activate, hosts won't shutdown, template locked, gpu passthrough failed
by Yaniv Kaul
On Sep 30, 2017 7:50 PM, "M R" <gr8nextmail(a)gmail.com> wrote:
Hello!
I have been using Ovirt for last four weeks, testing and trying to get
things working.
I have collected here the problems I have found and this might be a bit
long but help to any of these or maybe to all of them from several people
would be wonderful.
It's a bit difficult and inefficient to list all issues in a single post -
unless you feel they are related ?
Also, it'd be challenging to understand them without logs.
Lastly, it's usually a good habit, when something doesn't work, solve it,
rather than continue. I do suspect your issues are somehow related.
Y.
My version is ovirt node 4.1.5 and 4.1.6 downloaded from website latest
stable release at the time. Also tested with CentOS minimal +ovirt repo. In
this case, 3. is solved, but other problems persist.
1. Power off host
First day after installing ovirt node, it was able to reboot and shutdown
clean. No problems at all. After few days of using ovir, I have noticed
that hosts are unable to shutdown. I have tested this in several different
ways and come to the following conclusion. IF engine has not been started
after boot, all hosts are able to shutdown clean. But if engine is started
even once, none of the hosts are able to shutdown anymore. The only way to
get power off is to unplug or press power button for a longer time as hard
reset. I have failed to find a way to have the engine running and then
shutdown host. This effects to all hosts in the cluster.
2. Glusterfs failed
Every time I have booted hosts, glusterfs has failed. For some reason, it
turns inactive state even if I have setup systemctl enable glusterd. Before
this command it was just inactive. After this command, it will say "failed
(inactive). There is still a way to get glusterfs working. I have to give
command systemctl start glusterd manually and everything starts working.
Why do I have to give manual commands to start glusterfs? I have used this
for CentOS before and never had this problem before. Node installer is that
much different from the CentOS core?
3. Epel
As I said that I have used CentOS before, I would like to able to install
some packets from repo. But even if I install epel-release, it won't find
packets such as nano or htop. I have read about how to add epel-release to
ovirt node from here: https://www.ovirt.org/release/4.1.1/#epel
I have tested even manually edit repolist, but it will fail to find normal
epel packets. I have setup additional exclude=collectd* as guided in the
link above. This doesn't make any difference. All being said I am able to
install manually packets which are downloaded with other CentOS machine and
transferred with scp to ovirt node. Still, this once again needs a lot of
manual input and is just a workaround for the bug.
4. Engine startup
When I try to start the engine when glusterfs is up, it will say vm doesn't
exist, starting up. Still, it won't startup automatically. I have to give
several times command hosted-engine --vm-start. I wait for about 5minutes
until I give it next time. This will take usually about 30minutes and then
randomly. Completely randomly after one of the times, I give this command
engine shoots up and is up in 1minute. This has happened every time I boot
up. And the times that I have to give a command to start the engine, has
been changing. At best it's been 3rd time at worst it has been 7th time.
Calculating from there it might take from 15minutes to 35minutes to get the
engine up.Nevertheless, it will eventually come up every time. If there is
a way to get it up on the first try or even better, automatically up, it
would be great.
5. Activate storage
Once the engine is up, there has been a problem with storage. When I go to
storage tab, it will show all sources red. Even if I wait for 15~20minutes,
it won't get storage green itself. I have to go and press active button
from main data storage. Then it will get main storage up in
2~3munutes.Sometimes it fails it once, but will definitely get main data
storage up on the seconds try. And then magically at the same time all
other storages instantly go green. Main storage is glusterfs and I have 3
NFS storages as well. This is only a problem when starting up and once
storages are on green they stay green. Still annoying that it cannot get it
done by itself.
6.Template locked
I try to create a template from existing VM and it resulted in original VM
going into locked state and template being locked. I have read that some
other people had a similar problem and they were suggested to restart
engine to see if it solves it. For me it has been now a week and several
restarts of engine and hosts, but there is still one VM locked and template
locked as well. This is not a big problem, but still a problem. Everything
is grey and cannot delete this bugged VM or template.
7. unable to use GPU
I have been trying to do GPU passthrough with my VM. First, there was a
problem with qemu cmd line, but once I figure out a way to get commands, it
maybe is working(?). Log shows up fine, but it still doesn't give
functionality I¨m looking for. As I mentioned in the other email that I
have found this: https://www.mail-archive.com/users@ovirt.org/msg40422.html
. It will give right syntax in log, but still, won't fix error 43 with
nvidia drivers. If anybody got this working or has ideas how to do it,
would really like to know how it's done properly. I have also tested with
AMD graphics cards such as vega, but as soon as drivers have installed, I
will get a black screen. Even if I restart VM or hosts or both. I will only
see black screen and unable to use VM at all. I might be able to live with
the other six things listed above, but this one is a bit of a problem for
me. My use of VMs will eventually need graphical performance and therefore
I will have to get this working or find an alternative to ovirt..I have
found several things that I really like in ovirt and would prefer to use
it.
Best regards
Mikko
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_camp...>
Ei
viruksia. www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_camp...>
<#m_1830658822099207723_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
_______________________________________________
Users mailing list
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7 years, 2 months
Passing through a display port to a GUEST vm
by Alexander Witte
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--_000_6DDEB273B96F45CC8FB776FCE14DD4FFbaicanadacom_--
7 years, 2 months
Re: [ovirt-users] Qemu prevents vm from starting up properly
by M R
Hello!
I have maybe found a way to do this.
I found this older email archive where similar problem was described:
https://www.mail-archive.com/users@ovirt.org/msg40422.html
With this -cpu arguments show up corretcly in log.
But the it still won't fix nvidia problem 43, which is annoying "bug"
implemented by nvidia.
I have several gtx graphic cards collecting dust and would like to use
them, but fail to do so...
best regards
Mikko
On Thu, Sep 28, 2017 at 8:46 AM, Yedidyah Bar David <didi(a)redhat.com> wrote:
> On Wed, Sep 27, 2017 at 8:32 PM, M R <gr8nextmail(a)gmail.com> wrote:
> > Hello!
> >
> > Thank you very much! I had misunderstood how it was suppose to be
> written in
> > qemu_cmdline. There was a typo in syntax and error log revealed it. It is
> > working IF I use ["-spice", "tls-ciphers=DES-CBC3-SHA"].
> > So I believe that installation is correctly done.
> >
> > Though, my problem still exists.
> > This is what I have been trying to use for qemu_cmdline:
> > ["-cpu", "kvm=off, hv_vendor_id=sometext"]
> > It does not work and most likely is incorrectly written.
>
> You should first come up with something that works when you try it
> manually, then try adapting that to the hook's syntax.
>
> >
> > I understood that qemu commands are often exported into xml files and the
> > command I'm trying to write is the following:
> >
> > <features>
> > <hyperv>
> > <vendor_id state='on' value='customvalue'/>
> > </hyperv>
> > <kvm>
> > <hidden state='on'/>
> > </kvm>
> > </features>
>
> I guess you refer above to libvirt xml. This isn't strictly
> related to qemu, although in practice most usage of libvirt
> is with qemu.
>
> >
> > How do I write this in custom properties for qemu_cmdline?
>
> If you have a working libvirt vm, with the options you need,
> simply check how it translated your xml to qemu's command line.
> You can see this either in its logs, or using ps.
>
> Best,
>
> >
> >
> > best regards
> >
> > Mikko
> >
> >
> >
> > On 27 Sep 2017 3:27 pm, "Yedidyah Bar David" <didi(a)redhat.com> wrote:
> >>
> >> On Wed, Sep 27, 2017 at 1:14 PM, M R <gr8nextmail(a)gmail.com> wrote:
> >> > Hello!
> >> >
> >> > I did check logs from hosts, but didnt notice anything that would help
> >> > me. I
> >> > can copy paste logs later.
> >> >
> >> > I was not trying to get qemu crash vm.
> >> > I'm trying to add new functionalities with qemu.
> >> >
> >> > I wasnt sure if my syntax was correct, so I copy pasted the example
> >> > command
> >> > for spice from that website. And it still behaves similarly.
> >> >
> >> > My conclusion is that qemu cmdline is setup wrong or it's not working
> at
> >> > all. But I dont know how to check that.
> >>
> >> Please check/share /var/log/libvirt/qemu/* and /var/log/vdsm/* . Thanks.
> >>
> >> >
> >> > On 27 Sep 2017 12:32, "Yedidyah Bar David" <didi(a)redhat.com> wrote:
> >> >>
> >> >> On Wed, Sep 27, 2017 at 11:32 AM, M R <gr8nextmail(a)gmail.com> wrote:
> >> >> > Hello!
> >> >> >
> >> >> > I have followed instructions in
> >> >> > https://www.ovirt.org/develop/developer-guide/vdsm/hook/
> qemucmdline/
> >> >> >
> >> >> > After adding any command for qemu cmdline, vm will try to start,
> but
> >> >> > will
> >> >> > immediately shutdown.
> >> >> >
> >> >> > Is this a bug?
> >> >>
> >> >> If you intended, with the params you passed, to make qemu fail, for
> >> >> whatever
> >> >> reason (debugging qemu?), then it's not a bug :-) Otherwise, it is,
> but
> >> >> we
> >> >> can't know where.
> >> >>
> >> >> > or is the information in the link insufficient?
> >> >> > If it would be possible to confirm this and if there's a way to
> fix,
> >> >> > I
> >> >> > would
> >> >> > really like to have step by step guide of how to get this working.
> >> >>
> >> >> Did you check relevant logs? vdsm/libvirt?
> >> >>
> >> >> Best,
> >> >> --
> >> >> Didi
> >>
> >>
> >>
> >> --
> >> Didi
>
>
>
> --
> Didi
>
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_camp...>
Ei
viruksia. www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_camp...>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
7 years, 2 months
4.2 downgrade
by Ryan Mahoney
Accidentally upgraded a 4.0 environment to 4.2 (didn't realize the "master"
repo was development repo). What's my chances/best way if possible to roll
back to 4.0 (or 4.1 for that matter).
7 years, 2 months
changing ip of host and its ovirtmgmt vlan
by Gianluca Cecchi
Hello,
an host not maintained by me was modified so that its mgmt network had
become ovirtmgmntZ2Z3.
Originally the host had been added into engine with its hostname and not
its ip and this simplifies things.
So a dns entry change was done while the host was in maintenance
(as far as I have understood...)
The guy changed the /etc/sysconfig/netowrk-scripts/ files and apparently it
was activated ok, but when host rebooted the config was reverted due to
persistence of vdsm.
As he had urgence for this host to become operational again, in the mean
time I worked like this, having now a working host:
- modified /etc/sysconfig/network/scripts files with the new required
configuration
- modified files under /var/lib/vdsm/persistence/netconf/nets/
eg the file ovirtmgmntZ2Z3 with its ip and vlan correct information
sync
then power off / power on host
The host comes up good and as it had been peviously put into maintenance,
it was able to be activated and power on some VMs.
Can I consider this workflow ok or is there any ip/network information of
the host stored into engine db or other parts on engine or hosts?
I have then a question for the ovirtmgmt logical network itself, but I will
open a new thread for it...
Thanks in advance,
Gianluca
7 years, 2 months
Real Noob question- setting a static IP on host
by Alexander Witte
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7 years, 2 months
