- Users - oVirt List Archives

[Users] Asking for advice on hosted engine
by Giorgio Bersano 21 Feb '14

21 Feb '14

Hello everybody, I discovered oVirt a couple of months ago when I was looking for the best way to manage our small infrastructure. I have read any document I considered useful but I would like to receive advice from the many experts that are on this list. I think it worths an introduction (I hope doesn't get you bored). I work in a small local government entity and I try to manage effectively our limited resources. We have many years of experience with Linux and especially with CentOS which we have deployed on PC (i.e. for using as firewall in remote locations) and moreover on servers. We have been using Xen virtualization from the early days of CentOS 5 and we have built our positive experience on KVM too. I have to say that libvirt in a small environment like ours is really a nice tool. So nothing to regret. Trying to go a little further, as already said, I stumbled upon oVirt and I've found the project intriguing. At the moment we are thinking of deploying it on a small environment of four very similar servers each having: - a couple of Xeon E5504 - 6 x 1Gb ethernet interfaces - 40 GB of RAM two of them have 72 GB of disk (mirrored) two of them have almost 500GB of useful RAID array Moreover we have an HP iSCSI storage that should easily satisfy our current storage requirement. So, given our small server pool, the necessity of another host just to run the supervisor seems a requirement too high. Enter "hosted engine" and the picture takes brighter colors. Well, I'm usually not the adventurous guy but after experimenting a little with oVirt 3.4 I developed better confidence. We would want to install the engine over the two hosts with smaller disks. For what I know, installing hosted engine mandates NFS storage. But we want this to be highly available too, and possibly to have it on the very same hosts. Here is my solution: make a gluster replicated volume across the two hosts and take advantage of that NFS server. Then I put 127.0.0.1 as the address of the NFS server in the hosted-engine-setup so the host is always able to reach the storage server (itself). GlusterFS configuration is done outside of oVirt that, regarding engine's storage, doesn't even know that it's a gluster thing. Relax, we've finally reached the point where I'm asking advice :-) Storage and virtualization experts, do you see in this configuration any pitfall that I've overlooked given my inexperience in oVirt, Gluster, NFS or clustered filesystems? Do you think that not only it's feasable (I know it is, I made it and it's working now) but it's also reliable and dependable and I'm not risking my neck on this setup? I've obviously made some test but I'm not at the confidence level of saying that all is right in the way it is designed. OK, I think I've already written too much, better I stop and humbly wait for your opinion but I'm obviously here if any clarification by my part is needed. Thank you very much for reading until this point. Best Regards, Giorgio.

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[Users] moving an unplugged/offline disk on a running vm creates snapshots
by Ernest Beinrohr 21 Feb '14

21 Feb '14

This is a multi-part message in MIME format. --------------070708090100060509090505 Content-Type: text/plain; charset=windows-1250; format=flowed Content-Transfer-Encoding: 8bit Imho, when the disk is offline, it should be movable directly without the need for snapshots. this is on ovirt 3.3 btw: any chance of thin->preallocated procedure? -- Ernest Beinrohr, AXON PRO Ing <http://www.beinrohr.sk/ing.php>, RHCE <http://www.beinrohr.sk/rhce.php>, RHCVA <http://www.beinrohr.sk/rhce.php>, LPIC <http://www.beinrohr.sk/lpic.php>, VCA <http://www.beinrohr.sk/vca.php>, +421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603 <callto://+421-903--482-603> icq:28153343, gtalk: oernii(a)axonpro.sk, jabber:oernii@jabber.org ------------------------------------------------------------------------ For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. Richard Feynman --------------070708090100060509090505 Content-Type: text/html; charset=windows-1250 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1250"> </head> <body bgcolor="#FFFFFF" text="#000000"> Imho, when the disk is offline, it should be movable directly without the need for snapshots.<br> <br> this is on ovirt 3.3<br> <br> btw: any chance of thin->preallocated procedure?<br> <br> <div class="moz-signature">-- <br> <div id="oernii_footer" style="color: gray;"> <span style="font-family: Lucida Console, Luxi Mono, Courier, monospace; font-size: 90%;"> Ernest Beinrohr, AXON PRO<br> <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/ing.php">Ing</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/vca.php">VCA</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-903--482-603">+421-903--482-603</a><br> icq:28153343, gtalk: <a class="moz-txt-link-abbreviated" href="mailto:oernii@axonpro.sk">oernii(a)axonpro.sk</a>, <a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a> <br> </span> <hr style="height: 1px; width: 95%"> <span style="font-size: 70%;"> For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. Richard Feynman </span> </div> </div> <img src="http://nojsstats.appspot.com/UA-44497096-1/email.beinrohr.sk" moz-do-not-send="true" border="0" height="1" width="1"> </body> </html> --------------070708090100060509090505--

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[Users] engine-image-uploader
by Maurice James 21 Feb '14

21 Feb '14

------=_NextPart_000_001B_01CF25B0.BC04D9A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit What does the following error mean? There should only be one Name element in the OVF XML's Content section. I ran the following command engine-image-uploader -e SaturnExport -N Drupal2 upload turnkey-drupal7-13.0-wheezy-amd64.tar.gz ------=_NextPart_000_001B_01CF25B0.BC04D9A0 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-microsoft-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=3DGenerator content=3D"Microsoft Word 15 = (filtered medium)"><style></style></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p = class=3DMsoNormal>What does the following error mean?<o:p></o:p></p><p = class=3DMsoNormal>There should only be one Name element in the OVF XML's = Content section.<o:p></o:p></p><p = class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>I ran the = following command<o:p></o:p></p><p = class=3DMsoNormal>engine-image-uploader -e SaturnExport -N Drupal2 = upload turnkey-drupal7-13.0-wheezy-amd64.tar.gz = <o:p></o:p></p></div></body></html> ------=_NextPart_000_001B_01CF25B0.BC04D9A0--

3 4

[Users] problems installing ovirt-engine beta3
by Jorick Astrego 21 Feb '14

21 Feb '14

Hi, I noticed the known issue with shmmax has been removed from the test day page. But I'm having the same error as before only know the workaround doesn't work anymore:

2 1

[Users] persisting selinux nightmare
by David Smith 21 Feb '14

21 Feb '14

I'm using the ovirt iso image and can't seem to get selinux to persist off no matter what i do. With selinux enforcing, SSHD isnt working, can't install or use the hosts. With it disabled, all seems to work, but after reboot, boom its enforcing again. I even edited /etc/selinux/config and changed it to permissive, then used "persist config" to persist the file. I reboot, I see the file is still changed, but selinux is back into enforcing mode (getenforce) what gives? I'm using this iso image, is this the latest one? It seems really hard to navigate the various old links in docs and such to find the most up to date isos. ovirt-node-iso-3.0.3-1.1.vdsm.fc19.iso

3 4

[Users] vmware image conversion
by Maurice James 21 Feb '14

21 Feb '14

------=_NextPart_000_002A_01CF24AE.AF6B7BC0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I submitted an RFE to have vmware image conversion added to 3.5. I think that is a key feature that is lacking. Im just trying to get some eyes on it here. https://bugzilla.redhat.com/show_bug.cgi?id=1062910 ------=_NextPart_000_002A_01CF24AE.AF6B7BC0 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-microsoft-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=3DGenerator content=3D"Microsoft Word 15 = (filtered medium)"><style></style></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p = class=3DMsoNormal>I submitted an RFE to have vmware image conversion = added to 3.5. I think that is a key feature that is lacking. Im just = trying to get some eyes on it here.<o:p></o:p></p><p = class=3DMsoNormal><o:p> </o:p></p><p = class=3DMsoNormal><o:p> </o:p></p><p = class=3DMsoNormal>https://bugzilla.redhat.com/show_bug.cgi?id=3D1062910<o= :p></o:p></p></div></body></html> ------=_NextPart_000_002A_01CF24AE.AF6B7BC0--

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[Users] SPM never stops contending after a compatibility upgrade of cluster from 3.1 > 3.2 (Solved)
by Ricky Schneberger 21 Feb '14

21 Feb '14

1 0

[Users] repo status
by Jimmy Dorff 21 Feb '14

21 Feb '14

This is a cryptographically signed message in MIME format. --------------ms040407080806040202020907 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable What is going on with the EL repos. I'm getting this message: http://resources.ovirt.org/releases/3.3.3/rpm/Fedora/6.5/repodata/repomd.= xml:=20 [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not=20 Found" Trying other mirror. http://ovirt.org/releases/stable/rpm/Fedora/6.5/repodata/repomd.xml:=20 [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not=20 Found" Trying other mirror. This is on a fresh install with only EPEL and=20 http://resources.ovirt.org/releases/ovirt-release-el.noarch.rpm Thanks, Jimmy --------------ms040407080806040202020907 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKYDCC BOowggPSoAMCAQICECeaPwnGr8aRr9rqNxvvpm8wDQYJKoZIhvcNAQEFBQAwga4xCzAJBgNV BAYTAlVTMQswCQYDVQQIEwJVVDEXMBUGA1UEBxMOU2FsdCBMYWtlIENpdHkxHjAcBgNVBAoT FVRoZSBVU0VSVFJVU1QgTmV0d29yazEhMB8GA1UECxMYaHR0cDovL3d3dy51c2VydHJ1c3Qu Y29tMTYwNAYDVQQDEy1VVE4tVVNFUkZpcnN0LUNsaWVudCBBdXRoZW50aWNhdGlvbiBhbmQg RW1haWwwHhcNMTEwMjExMDAwMDAwWhcNMjAwNTMwMTA0ODM4WjBkMQswCQYDVQQGEwJVUzES MBAGA1UEChMJSW50ZXJuZXQyMREwDwYDVQQLEwhJbkNvbW1vbjEuMCwGA1UEAxMlSW5Db21t b24gU3RhbmRhcmQgQXNzdXJhbmNlIENsaWVudCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEP 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2 1

Re: [Users] about live snapshot and qemu-kvm
by Karli Sjöberg 21 Feb '14

21 Feb '14

On Mon, 2014-02-17 at 09:59 -0500, Douglas Schilling Landgraf wrote: > On 02/17/2014 02:00 AM, Karli Sjöberg wrote: > > On Thu, 2014-02-13 at 14:42 -0500, Douglas Schilling Landgraf wrote: > >> On 01/01/2014 06:24 AM, Gianluca Cecchi wrote: > >>> On Wed, Jan 1, 2014 at 4:38 AM, R P Herrold wrote: > >>> > >>>> > >>>> Out of curiousity, _what_ build environment 'flags' do you > >>>> all, participating in this thread, refer to? -- the thread > >>>> does not enumerate them explicitly, and one cannot expect to > >>>> hit by 'indirect fire', a target not exposed > >>>> > >>>> With best regards, this New Year's eve > >>> > >>> I'm far from being a programmer, but as I went to compare build > >>> environments, between > >>> qemu-kvm-rhev-0.12.1.2-2.415.el6_5.3.src.rpm > >>> and > >>> qemu-kvm-0.12.1.2-2.415.el6_5.3.src.rpm > >>> in related spec file I see > >>> [g.cecchi@tekkaman SPECS]$ diff qemu-kvm.spec.upstream qemu-kvm.spec.rhev > >>> 3c3 > >>> < %define rhev 0 > >>> --- > >>>> %define rhev 1 > >>> 12928a12929 > >>>>>>>>>>> rhel-6.5 > >>> > >>> and apart other probably not trivial implications, such as guest agent > >>> part, I see that the "configure" command takes one extra argument in > >>> base RH EL 6.5, that is > >>> > >>> --disable-rhev-features > >>> > >>> The only patch file containing this keyword is > >>> > >>> kvm-Block-streaming-disable-for-RHEL.patch > >>> > >>> and inside it there are these lines that impacts configure options and > >>> related built qemu-kvm: > >>> > >>> --- a/configure > >>> +++ b/configure > >>> @@ -286,6 +286,7 @@ spice="" > >>> smartcard="" > >>> smartcard_nss="" > >>> live_snapshots="yes" > >>> +block_stream="yes" > >>> usb_redir="" > >>> > >>> # OS specific > >>> @@ -686,10 +687,22 @@ for opt do > >>> ;; > >>> --enable-live-snapshots) live_snapshots="yes" > >>> ;; > >>> + --disable-block-stream) block_stream="no" > >>> + ;; > >>> + --enable-block-stream) block_stream="yes" > >>> + ;; > >>> --disable-usb-redir) usb_redir="no" > >>> ;; > >>> --enable-usb-redir) usb_redir="yes" > >>> ;; > >>> + --disable-rhev-features) > >>> + live_snapshots="no"; > >>> + block_stream="no"; > >>> + ;; > >>> + --enable-rhev-features) > >>> + live_snapshots="yes"; > >>> + block_stream="yes"; > >>> + ;; > >>> *) echo "ERROR: unknown option $opt"; show_help="yes" > >>> ;; > >>> esac > >>> @@ -863,8 +876,12 @@ echo " --disable-smartcard-nss disable > >>> smartcard nss support" > >>> echo " --enable-smartcard-nss enable smartcard nss support" > >>> echo " --disable-live-snapshots disable live block device snapshot support" > >>> echo " --enable-live-snapshots enable live block device snapshot support" > >>> +echo " --disable-block-stream disable block streaming support" > >>> +echo " --enable-block-stream enable block streaming support" > >>> echo " --disable-usb-redir disable usb network redirection support" > >>> echo " --enable-usb-redir enable usb network redirection support" > >>> +echo " --disable-rhev-features disable RHEV-only features" > >>> +echo " --enable-rhev-features enable RHEV-only features" > >>> echo "" > >>> echo "NOTE: The object files are built at the place where configure > >>> is launched" > >>> exit 1 > >>> @@ -2271,6 +2288,7 @@ echo "Trace backend $trace_backend" > >>> echo "spice support $spice" > >>> echo "nss used $smartcard_nss" > >>> echo "Live snapshots $live_snapshots" > >>> +echo "Block streaming $block_stream" > >>> echo "xfsctl support $xfs" > >>> echo "usb net redir $usb_redir" > >>> > >>> @@ -2526,6 +2544,10 @@ if test "$live_snapshots" = "yes" ; then > >>> echo "CONFIG_LIVE_SNAPSHOTS=y" >> $config_host_mak > >>> fi > >>> > >>> +if test "$block_stream" = "yes" ; then > >>> + echo "CONFIG_BLOCK_STREAM=y" >> $config_host_mak > >>> +fi > >>> + > >>> if test "$usb_redir" = "yes" ; then > >>> echo "CONFIG_USB_REDIR=y" >> $config_host_mak > >>> fi > >>> > >>> I don't think the rhev argument has instead implications in upstream > >>> source qemu-kvm-0.12.1.2.tar.gz > >>> So I think that if you want to dig more and if you have more > >>> competences, you have to see the full spec file and the full patch > >>> above. > >>> > >>> Files downloaded here: > >>> > >>> upstream > >>> http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/os/SRPMS/qemu-kvm-… > >>> > >>> rhev > >>> http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/qemu-kv… > >>> > >> > >> Just for the record, we have setup a jenkins job to rebuild qemu-kvm for > >> el6 until we get it officially from centos: > >> http://jenkins.ovirt.org/view/Packaging/job/qemu-kvm-rhev_create_rpms_el6/ > >> > >> -- > >> Cheers > >> Douglas > >> _______________________________________________ > >> Users mailing list > >> Users(a)ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/users > > > > I think this calls for an oldschool question/statement; > > > > Who da man? ... You da man! :) > > > > Live snapshot now just works. Haven´t verified quiesce yet though, but > > looks good as far as the events in webadmin is concerned. Next to test > > is live disk migration. > > > > > Thanks a lot for the feedback :) > > -- > Cheers > Douglas Hey, have gone through the logs to verify quiescence and the only thing actually mentioning it comes from vdsm.log: Thread-127371::DEBUG::2014-02-19 14:54:15,612::BindingXMLRPC::977::vds::(wrapper) return vmSnapshot with {'status': {'message': 'Done', 'code': 0}, 'quiesce': False} What is it saying really? That quiescing failed, or that it was deliberately taken without it, or what? Nothing in qemu-ga.log either, even if changed to "--verbose". Like it never got any calls to quiesce in the first place. The guest does have the device[1] attached at least. The guest is CentOS-6.4 or 5, if that matters. [1]: /dev/virtio-ports/org.qemu.guest_agent.0 -- Med Vänliga Hälsningar ------------------------------------------------------------------------------- Karli Sjöberg Swedish University of Agricultural Sciences Box 7079 (Visiting Address Kronåsvägen 8) S-750 07 Uppsala, Sweden Phone: +46-(0)18-67 15 66 karli.sjoberg(a)slu.se

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[Users] Host Non-Operational from sanlock and VM fails to migrate
by Trey Dockendorf 21 Feb '14

21 Feb '14

I have a 2 node oVirt 3.3.2 cluster setup and am evaluating the setup for production use on our HPC system for managing our VM infrastructure. Currently I'm trying to utilize our DDR InfiniBand fabric for the storage domains in oVirt using NFS over RDMA. I've noticed some unstable behavior and it seems in every case to begin with sanlock. The ovirt web admin interface shows the following message as first sign of trouble on 2014-Feb-03 07:45. "Invalid status on Data Center Default. Setting Data Center status to Non Responsive (On host vm01.brazos.tamu.edu, Error: Network error during communication with the Host.).". The single VM I had running is stuck in the "Migrating From" state. virsh shows the VM paused on the crashed host and the one it attempted to migrate to. Right now I have a few concerns. 1) The cause of the sanlock (or other instability) and if it's related to a bug or an issue using NFSoRDMA. 2) Why the VM failed to migrate if the second host had no issues. If the first host is down should the VM be considered offline and booted on the second host after first is fenced? Attached are logs from the failed host (vm01) and the healthy host (vm02) as well as engine. The failed host's /var/log/message is also attached (vm01_message.log). Thanks - Trey

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