June 2016 - Users - oVirt List Archives

migrating a vm from a down node
by Bill James 28 Jun '16

28 Jun '16

I am doing some fault tolerance type testing with ovirt before we put it in production. One thing I noticed is if I unplug the power from a hardware node, including iLo (fence), that the VMs that were on that host go to unknown state. I have found no way in the GUI to migrate the hosts, even they they are marked HA. The only way I've found so far is to modify the database directly. Is that the only recovery from a host failure of this type? engine=> update vm_dynamic set status = 0 where vm_guid =(select engine(> vm_guid from vm_static where vm_name = 'myvm'); ovirt-engine-3.6.4.1-1.el7.centos.noarch centos 7.2 Also is 3.6.4 a OK version to use or should I upgrade first? (looks like 3.6.6.2-1.el7.centos is current latest)

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Accessing VM over WAN
by RK RK 28 Jun '16

28 Jun '16

Hi, I am planning to deploy oVirt 4.0.0 in a production environment where initially it will host 150 VDIs and will expand by 20 to 25 in subsequent years with Windows 7, 8.1 and 10. Users will be accessing these VDIs from their android tab or any tiny thin client devices which will have only very small footprint OS with HTML5 supported browser. I wish to give users to access the VDIs over WAN(from their home or on travel). Is it possible to access the VDIs via spice-html5 over the WAN. Any special configurations to be made to enable it? How should I make spice-html5 as the default protocol to access the VDIs? -- With Regards, RK, +91 9840483044

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VMs halt on Storage Error
by David Gerner 27 Jun '16

27 Jun '16

Hi, I'm running into a strange issue that I've been trying to solve unsuccessfully for a few days now, and I was hoping someone could offer some insight. A few days ago I needed to reboot the the server that hosts the management engine and is also a node in the system. Following proper procedure I selected a new host to be the SPM, migrated VMs off the Host, and put it into maintenance mode. After the host came back up (and the management engine was back online) I noticed that one of my VMs had halted on a storage error, to rule out the SPM being the issue I asked oVirt to select a new SPM and it was stuck in a contending loop where each host tries to contend for SPM status but ultimately fails (every other VM also halted by this point). The error was "BlockSD master file system FSCK error", after researching the error I found a post on this list that was the same error and the author said that a simple FSCK on the offending file system fixed his issue. I had to force shutdown every VM from the halted state and put all but one host into maintenance mode. On that host I ran a FSCK on the offending volume which found a lot of short read errors which it fixed and afterwards the contending loop was broke and hosts could now successfully be an SPM. Now every VM halts on start or resume, even ones that were offline at the time of the earlier incident, with a Storage Error "abnormal vm stop device virtio-disk0 error eio". I can't even create new disks because it fails with an error. I've attached what I think is the relevant VDSM log portion of a VM trying to resume, if more is needed please just let me know. I'm worried FSCK and I mangled the file system, and have no idea how to repair it. Any insight is greatly appreciated. Thank you, Dave oVirt Engine Version: 3.6.2.6-1.el7.centos Storage Tech: iSCSI 4 Servers each with: OS: RHEL - 7 - 2.1511.el7.centos.2.10 Kernel: 3.10.0 - 327.4.5.el7.x86_64 KVM Version: 2.3.0 - 31.el7_2.7.1 libVirt Version: libvirt-1.2.17-13.el7_2.5 VDSM Version: vdsm-4.17.28-0.el7.centos

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direct mounting of vm disks?
by Robert Story 27 Jun '16

27 Jun '16

--Sig_/.lLlEVeLgvPZAtF/dI+yD0s Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hello, I'm using oVirt 3.5.x w/nfs for vm file storage. I'm trying to restore a vm from backup, which entails: - scp backup.tar to vm - untar backup on vm this means all the data makes 3 trips over the network, each of which causes a load spike on my nfs server. That nfs load, of course, affects all other vms. what I'd like to be able to do is - scp backup.tar to nfs server - stop vm - mount vm disks on nfs server - untar backup on nfs server (using ionice to minimze load impact) - unmount vm disks - start vm I remember that I used to use kpartx to mount regular KVM disks, so I'm hoping that it can also be done here. Anyone else tried to make this work? Robert --=20 Senior Software Engineer @ Parsons --Sig_/.lLlEVeLgvPZAtF/dI+yD0s Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAldvXM8ACgkQ7/fVLLY1mni4KwCdFDpmX8f3BumEgulWCmcUiiNz m6wAnReCZ1roZh10nXVW0iIYKtl+M9gE =KDOJ -----END PGP SIGNATURE----- --Sig_/.lLlEVeLgvPZAtF/dI+yD0s--

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Unofficial projects
by James Michels 27 Jun '16

27 Jun '16

Greetings, Is there some official oVirt section where you list unofficial oVirt-related projects? If so, what is the process for a new unofficial project to get listed there? If not, I think it might be a good idea to provide a minimal support by listing them. Thank you. James

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no katello 3.0 errata available anymore into ovirt
by Nathanaël Blanchet 27 Jun '16

27 Jun '16

Hi, I upgraded to the latest katello 3.0, and errata are not available anymore for hosts or vms. There is no error, it always displays 0 errata. The name of the host/vm is the same as into foreman. Though, list of provisionned hosts is still available, so I suppose the issue comes from katello API and not foreman API. Thank you. -- Nathanaël Blanchet Supervision réseau Pôle Infrastrutures Informatiques 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr

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Migrations Guide in order to migrate to Enterprise Linux 7
by Ricky Schneberger 27 Jun '16

27 Jun '16

This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --lqvbPKPnHTdwtMCUjfMuxijuAKhJRnANe Content-Type: multipart/mixed; boundary="mVCwoxH39T20LMeN7dVTaPAj3lpWdCIge" From: Ricky Schneberger <ricky(a)schneberger.se> Reply-To: ricky(a)schneberger.se To: users <users(a)ovirt.org> Message-ID: <57711C2E.5020500(a)schneberger.se> Subject: Migrations Guide in order to migrate to Enterprise Linux 7 --mVCwoxH39T20LMeN7dVTaPAj3lpWdCIge Content-Type: multipart/alternative; boundary="------------030708040908010902070501" This is a multi-part message in MIME format. --------------030708040908010902070501 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, I found out that an upgrade of oVirt 3.6 to 4.0 is not supported on Enterprise Linux 6. The information was that I should follow an Migration Guide - https://www.ovirt.org/release/4.0.0/documentation/migration-engine-3.6-to-4= .0. "Upgrade on Fedora 22 and Enterprise Linux 6 is not supported and you should follow our Migration Guide <https://www.ovirt.org/release/4.0.0/documentation/migration-engine-3.6-to-= 4.0/> in order to migrate to Enterprise Linux 7 or Fedora 23." The link only gives an 404. Regards --=20 Ricky Schneberger ------------------------------------ Use PGP to protect your own privacy! Key fingerprint =3D 59E1 2B00 C28B 6E0D C8D1 D85B 39AA 7CD5 B88C 0B63 Key-ID: 0xB88C0B63 --------------030708040908010902070501 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"content-type" content=3D"text/html; charset=3Dutf-8= "> </head> <body text=3D"#000000" bgcolor=3D"#FFFFFF"> Hi, I found out that an upgrade of oVirt 3.6 to 4.0 is not supported on Enterprise Linux 6. The information was that I should follow an Migration Guide - <a class=3D"moz-txt-link-freetext" href=3D"https://www.ovirt.org/release/4.= 0.0/documentation/migration-engine-3.6-to-4.0">https://www.ovirt.org/releas= e/4.0.0/documentation/migration-engine-3.6-to-4.0</a>. "Upgrade on Fedora 22 and Enterprise Linux 6 is not supported and you should follow our <a href=3D"https://www.ovirt.org/release/4.0.0/documentation/migration-engine-= 3.6-to-4.0/">Migration Guide</a> in order to migrate to Enterprise Linux 7 or Fedora 23." The link only gives an 404. Regards <pre class=3D"moz-signature" cols=3D"72">--=20 Ricky Schneberger ------------------------------------ Use PGP to protect your own privacy! Key fingerprint =3D 59E1 2B00 C28B 6E0D C8D1 D85B 39AA 7CD5 B88C 0B63 Key-ID: 0xB88C0B63 </pre> </body> </html> --------------030708040908010902070501-- --mVCwoxH39T20LMeN7dVTaPAj3lpWdCIge-- --lqvbPKPnHTdwtMCUjfMuxijuAKhJRnANe Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAldxHC4ACgkQOap81biMC2PXVgCgjJxrcy15uBP4XhnZmhKho2FB SYUAnRojHvqX5++WAFVwB69maUq3Loqn =ZQtv -----END PGP SIGNATURE----- --lqvbPKPnHTdwtMCUjfMuxijuAKhJRnANe-- -- IMPORTANT! This message has been scanned for viruses and phishing links. However, it is your responsibility to evaluate the links and attachments you choose to click. If you are uncertain, we always try to help. Greetings helpdesk(a)actnet.se

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Network redundancy with Manual balancing per VLAN
by Fernando Frediani 27 Jun '16

27 Jun '16

Hello, In VMware it is possible to bond two network interfaces and for each Portgroup (equivalent to a VLAN) is possible to tell which of the physical interfaces underneath it you wish the traffic to flow primarily and which stays as secondary(bond mode=1 equivalent). So for certain VLANs (Management, Live Migration, etc) is possible to force traffic flow via one physical NIC of the bond and for other VLANs (Virtual Machine's traffic) outs via the other NIC with failover to each other should a cable or switch fails. This is specially good for better utilize the fewer NICs available and still have redundancy. In oVirt it is also possible to have bonds, but would it still be possible to do that same and favor the traffic per VLAN basis ? I guess it is something related to Linux Bond module but perhaps someone has done this already. Thanks Fernando

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oVirt and Ceph
by Charles Gomes 27 Jun '16

27 Jun '16

--_000_307E608C4BFFA145A1496A5FD1ACC3BC1D7FDD46exchange2010dim_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello I've been reading lots of material about implementing oVirt with Ceph, howe= ver all talk about using Cinder. Is there a way to get oVirt with Ceph without having to implement entire Op= enstack ? I'm already currently using Foreman to deploy Ceph and KVM nodes, trying to= minimize the amount of moving parts. I heard something about oVirt providi= ng a managed Cinder appliance, have any seen this ? --_000_307E608C4BFFA145A1496A5FD1ACC3BC1D7FDD46exchange2010dim_ 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-US" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> Hello<o:p></o:p> <o:p> </o:p> I’ve been reading lots of material about imple= menting oVirt with Ceph, however all talk about using Cinder. <o:p></o:p> Is there a way to get oVirt with Ceph without having= to implement entire Openstack ? <o:p></o:p> I’m already currently using Foreman to deploy = Ceph and KVM nodes, trying to minimize the amount of moving parts. I heard = something about oVirt providing a managed Cinder appliance, have any seen t= his ?<o:p></o:p> <o:p> </o:p> </div> </body> </html> --_000_307E608C4BFFA145A1496A5FD1ACC3BC1D7FDD46exchange2010dim_--

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latest CentOS libvirt updates safe?
by Robert Story 27 Jun '16

27 Jun '16

--Sig_/2+FpI4Cvur605E8SRHVCwXB Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable I have oVirt 3.5.x on CentOS 7 hosts. These hosts have updates which include livbirt: libvirt-client x86_64 1.2.17-13.el7_2.5 updates 4= .3 M libvirt-daemon x86_64 1.2.17-13.el7_2.5 updates 5= 85 k libvirt-daemon-config-nwfilter x86_64 1.2.17-13.el7_2.5 updates 1= 22 k libvirt-daemon-driver-interface x86_64 1.2.17-13.el7_2.5 updates 1= 62 k libvirt-daemon-driver-network x86_64 1.2.17-13.el7_2.5 updates 3= 02 k libvirt-daemon-driver-nodedev x86_64 1.2.17-13.el7_2.5 updates 1= 61 k libvirt-daemon-driver-nwfilter x86_64 1.2.17-13.el7_2.5 updates 1= 85 k libvirt-daemon-driver-qemu x86_64 1.2.17-13.el7_2.5 updates 5= 71 k libvirt-daemon-driver-secret x86_64 1.2.17-13.el7_2.5 updates 1= 55 k libvirt-daemon-driver-storage x86_64 1.2.17-13.el7_2.5 updates 3= 28 k libvirt-daemon-kvm x86_64 1.2.17-13.el7_2.5 updates 1= 18 k libvirt-lock-sanlock Is it safe to let yum update these packages while the host has running VMs? in maintenance mode? or not at all? Robert --=20 Senior Software Engineer @ Parsons --Sig_/2+FpI4Cvur605E8SRHVCwXB Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAldum/EACgkQ7/fVLLY1mnj6KQCfWUsVS/OU/98ynUgin2QwEw46 ANsAnjElWFKIhCURI95jsBsCmewxDTgq =Oi3o -----END PGP SIGNATURE----- --Sig_/2+FpI4Cvur605E8SRHVCwXB--

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