August 2018 - Users - oVirt List Archives

NFS Multipathing
by Thomas Letherby 16 Sep '18

16 Sep '18

Hello all, I've been looking around but I've not found anything definitive on whether Ovirt can do NFS Multipathing, and if so how? Does anyone have any good how tos or configuration guides? Thanks, Thomas

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Failed to synchronize networks of Provider ovirt-provider-ovn
by Kapetanakis Giannis 14 Sep '18

14 Sep '18

Hi, After upgrading to 4.2.1 I have problems with ovn provider. I'm getting "Failed to synchronize networks of Provider ovirt-provider-ovn." I use custom SSL certificate in apache and I guess this is the reason. I've tried to update ovirt-provider-ovn.conf with [OVIRT] #ovirt-ca-file=/etc/pki/ovirt-engine/ca.pem ovirt-ca-file=/etc/pki/ovirt-engine/apache-ca.pem but still no go Any tips on this? thanks G

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Re: Unable to start VM - Image is not a legal chain
by Yedidyah Bar David 14 Sep '18

14 Sep '18

(Changing subject, adding Freddy) On Tue, Jul 10, 2018 at 8:06 PM, Alex K <rightkicktech(a)gmail.com> wrote: > Hi all, > > I did a routine maintenance today (updating the hosts) to ovirt cluster > (4.2) and I have one VM that was complaining about an invalid snapshot. > After shutdown of VM the VM is not able to start again, giving the error: > > VM Gitlab is down with error. Exit message: Bad volume specification > {'serial': 'b6af2856-a164-484a-afe5-9836bbdd14e8', 'index': 0, 'iface': > 'virtio', 'apparentsize': '51838976', 'specParams': {}, 'cache': 'none', > 'imageID': 'b6af2856-a164-484a-afe5-9836bbdd14e8', 'truesize': > '52011008', 'type': 'disk', 'domainID': '142bbde6-ef9d-4a52-b9da-2de533c1f1bd', > 'reqsize': '0', 'format': 'cow', 'poolID': '00000001-0001-0001-0001-000000000311', > 'device': 'disk', 'path': '/rhev/data-center/00000001- > 0001-0001-0001-000000000311/142bbde6-ef9d-4a52-b9da- > 2de533c1f1bd/images/b6af2856-a164-484a-afe5-9836bbdd14e8/ > f3125f62-c909-472f-919c-844e0b8c156d', 'propagateErrors': 'off', 'name': > 'vda', 'bootOrder': '1', 'volumeID': 'f3125f62-c909-472f-919c-844e0b8c156d', > 'diskType': 'file', 'alias': 'ua-b6af2856-a164-484a-afe5-9836bbdd14e8', > 'discard': False}. > > I see also the following error: > > VDSM command CopyImageVDS failed: Image is not a legal chain: > (u'b6af2856-a164-484a-afe5-9836bbdd14e8',) > This error appears a few more times in the list's archive, all of which seem to be related to rather-old bugs (3.5/3.6 times) or storage problems. I assume you use 4.2. Are you sure the corruption happened only now? Did working with snapshots worked well before the upgrade? > > Seems as a corrupt VM disk? > Seems so to me, but I am not a storage expert. > > The VM had 3 snapshots. I was able to delete one from GUI then am not able > to delete the other two as the task fails. Generally I am not allowed to > clone, export or do sth to the VM. > > > Have you encountered sth similar. Any advice? > The lastest post, from 2016, included a workaround, you might (very carefully!) try that. I suggest to also open a bug and attach all relevant logs (engine, vdsm from all relevant hosts, including SPMs at time of snapshot operations and any other host that ran the VM), and try to give accurate reproduction steps. Best regards, -- Didi

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Install oVirt node without Internet repository
by G, Maghesh Kumar (Nokia - IN/Bangalore) 13 Sep '18

13 Sep '18

--_000_HE1PR0702MB3532EC34365D995765A2B7D783A60HE1PR0702MB3532_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Description of problem: Cannot add host - install fails & Install oVirt node without Internet repos= itory Version: Ovirt-4.2 Host is installed with RHEL 7.4 Actual results: Host KVM02 installation failed. Command returned failure code 1 during SSH = session 'root(a)192.175.2.231<mailto:root@192.175.2.231>' I found that right now on my oVirt Nodes in my test environment does not NO= T connect to the internet... Basically, i need the offline repository to access from oVirt nodes without= Internet access. Please guide us how to proceed Regards, Maghesh --_000_HE1PR0702MB3532EC34365D995765A2B7D783A60HE1PR0702MB3532_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"EN-IN" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> Hi<o:p></o:p></span= > <o:p> </o:p> <pre>Description of problem:<o= :p></o:p></pre> <pre>Cannot add host - install= fails & Install oVirt node without Internet repository<o:p></o:p></spa= n></pre> <pre><o:p> </o:p><= /pre> <pre>Version: Ovirt-4.2<o:p></= o:p></pre> <pre>Host is installed with RH= EL 7.4<o:p></o:p></pre> <pre><o:p> </o:p><= /pre> <pre>Actual results:<o:p></o:p= ></pre> <pre>Host KVM02 installation f= ailed. Command returned failure code 1 during SSH session '<a href=3D"mailt= o:root@192.175.2.231">root(a)192.175.2.231</spa= n></a>'<o:p></o:p></pre> <o:p> </o:p> I found that right = now on my oVirt Nodes in my test environment does not NOT connect to the internet... <o:p></o:p> Basically, i need t= he offline repository to access from oVirt nodes without Internet access.<o= :p></o:p> <o:p> </o:p></= span> Please guide us how= to proceed<o:p></o:p> <o:p> </o:p></= span> Regards,<o:p></o:p>= Maghesh<o:p></o:p><= /span> <o:p> </o:p> </div> </body> </html> --_000_HE1PR0702MB3532EC34365D995765A2B7D783A60HE1PR0702MB3532_--

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Engine Setup Error
by Sakhi Hadebe 05 Sep '18

05 Sep '18

Hi, We are deploying the hosted engine on oVirt-Node-4.2.3.1 using the command "hosted-engine --deploy". After providing answers it runs the ansible script and hit the Error when creating glusterfs storage domain. Attached the screenshot of the ERROR. Please help.

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self-hosted engine lost password
by Rob Epping 04 Sep '18

04 Sep '18

Hello list, I'm trying to update our ovirt self-hosted engine to the latest version using the docs at https://www.ovirt.org/documentation/upgrade-guide/chap-Updates_between_ Minor_Releases/#updating-the-ovirt-self-hosted-engine-and-underlying- virtualization-hosts For this I need to logon to the engine VM, but none of the passwords we used seems to work. I can not seem to find information on how te reset passwords of the hosted engine, so I'm stuck. Am I doing something wrong or is access to the self-hosted engine required. When access is required, is there a way to reset the password? THNX && GRTNX, RobJE

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Wrong network threshold limit warnings on 4.2.5
by Florian Schmid 04 Sep '18

04 Sep '18

Good morning, since we have upgraded to version 4.2.5, we get a lot of warnings about network interface exceeded defined threshold limits. For example: Aug 31, 2018, 7:54:05 AM Host xxx has network interface which exceeded the defined threshold [95%] (enp9s0.80: transmit rate[100%], receive rate [12%]) This is a 10 Gbit interface and on our monitoring software, which is getting network statistics every 10s, the bandwidth of TX was 150 Mbit maximum at this time, so far away from being 100%. Could it be, that the engine detected the wrong interface speed or there is a calculation error? In the engine for this host, I have 10000 Mbps for all interfaces. I have checked now all those warnings on our different hosts and they happen every time, we go over 100 Mbit and this is for sure quite often... Can I maybe disable these warnings, because we have it anyway in our monitoring software? If you need any logs, please ask. BR Florian Schmid

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Bricks do not appear in oVirt Manager UI under Hosts unless manually created on nodes.
by payden.pringle+ovirtlist＠gmail.com 03 Sep '18

03 Sep '18

I have a CentOS 7.5 system running the oVirt-Engine package as the manager for three oVirt Nodes (version 4.2). Two of the nodes have a 200GB disk and one has a 2GB disk. I am attempting to create a Gluster Volume that replicates between the two 200GB disks with the 2GB as Arbiter. When I create the bricks by going to Hosts > host1 > Storage Devices > Create Brick (with the 200GB device selected), it succeeds, but no bricks appear under the Bricks tab for the Host. Doing the same for host2 and host3 results in the same problem. If I run the following command on a host `gluster volume create test-volume replica 3 arbiter 1 192.168.5.{50,60,40}:/gluster-bricks/200GBbrick/test`, it creates the volume correctly and the bricks then appear as they should. However, then these Bricks are labeled as "Down" and when I go to Storage > Volumes, I get this error: ``` Uncaught exception occurred. Please try reloading the page. Details: (TypeError) : Cannot read property 'a' of null Please have your administrator check the UI logs ``` The Volume is also shown as "Down". SELinux is enabled on my CentOS 7.5 system. I'm not really sure what the correct method is to create bricks then a Volume in Gluster through the oVirt Management UI, but I've followed the guides and this is where it has got me.

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oVirt Node 4.2.3.1. to 4.2.5 upgrade trouble, log attached
by Matt Simonsen 03 Sep '18

03 Sep '18

Hello all, I've emailed about similar trouble with an oVirt Node upgrade using the ISO install. I've attached the /tmp/imgbased.log file in hopes it will help give a clue as to why the trouble. Since these use NFS storage I can rebuild, but would like to know, ideally, what caused the upgrade to break. Truthfully following the install, I don't think I have done *that* much to these systems, so I'm not sure what would have caused the problem. I have done several successful upgrades in the past and most of my standalone systems have been working great. I've been really happy with oVirt, so kudos to the team. Thanks for any help, Matt

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Windows vm and cpu type
by carl langlois 31 Aug '18

31 Aug '18

Hi all, I am trying to create a windows VM on my cluster that is set with cpu type to Nehalem. The probleme is that ovirt tell me that the guest os does not support this cpu.. What is the best ways to fix it without impacting my 41 running vms?. Thanks Regards

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