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[Users] oVirt 3.0 - importing OVF
by Piotr Szubiakowski 28 Sep '12

28 Sep '12

Hi, I have VM files from VMWare ESX 3.5. I converted this VM to OVF format. Is it possible to import this VM to oVirt. Should I use the import/export storage and virt-v2v tool? Best regards, Piotr

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Re: [Users] nested KVM
by Mark Wu 28 Sep '12

28 Sep '12

This is a multi-part message in MIME format. --------------010902010807020702030807 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit On 09/27/2012 03:21 PM, ybronhei wrote: > On 09/26/2012 04:06 AM, Mark Wu wrote: >> On 09/26/2012 12:58 AM, Nathanaël Blanchet wrote: >>> Hello, >>> >>> I've tried many times to run a node as a guest in ovirt following >>> http://wiki.ovirt.org/wiki/Vdsm_Developers#Running_Node_as_guest_-_Nested_K… >>> . The result is that I'm able to register such a host in engine, but >>> it is impossible to start any vm on it. If I boot on an ISO, I can >>> see the first prompt and move between the items. But since I begin >>> the installation I have a blank screen and the vm goes into pause >>> mode in vit-manager. Then I have no way else than rebooting the >>> hypervisor guest because it is impossible to resume. When I get logs >>> on the real host, I can find this : >>> arning : x86Decode:1306 : Preferred CPU model Westmere not allowed >>> by hypervisor; closest supported model will be used >>> Sep 25 17:11:59 khamsin libvirtd[23053]: 2012-09-25 >>> 15:11:59.384+0000: 23054: warning : x86Decode:1306 : Preferred CPU >>> model Westmere not allowed by hypervisor; closest supported model >>> will be used >>> Sep 25 17:12:19 khamsin libvirtd[23053]: 2012-09-25 >>> 15:12:19.150+0000: 23055: warning : x86Decode:1306 : Preferred CPU >>> model Westmere not allowed by hypervisor; closest supported model >>> will be used >>> Sep 25 17:45:48 khamsin libvirtd[23053]: 2012-09-25 >>> 15:45:48.342+0000: 23058: warning : x86Decode:1306 : Preferred CPU >>> model Westmere not allowed by hypervisor; closest supported model >>> will be used >>> Sep 25 18:07:05 khamsin libvirtd[23053]: 2012-09-25 >>> 16:07:05.834+0000: 23058: warning : x86Decode:1306 : Preferred CPU >>> model Nehalem not allowed by hypervisor; closest supported model >>> will be used >>> Sep 25 18:44:47 khamsin libvirtd[23053]: 2012-09-25 >>> 16:44:47.340+0000: 23057: warning : x86Decode:1306 : Preferred CPU >>> model Penryn not allowed by hypervisor; closest supported model will >>> be used >>> >>> As you can see, I have tried many cpu type for launching this guest >>> hypervisor, but none of them is accepted by the hypervisor. Plus, >>> I've modified each time the family type in the cluster tab, but it >>> is the same. >>> On the hist: >>> #virsh capabilities gives >>> <cpu> >>> <arch>x86_64</arch> >>> <model>Westmere</model> >>> <vendor>Intel</vendor> >>> >>> Thanks for your help >> >> >> What does the command 'qemu-kvm -cpu ?' give ? Could you please try >> the following guest cpu definition? >> * >> <cpu match='exact'> >> <model>core2duo</model> >> <feature policy='require' name='vmx'/> >> </cpu> >> >> >> * >> >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users > I've got error too during definition of nested kvm. > > When i run qemu-kvm cpu ? i get: Unable to find x86 CPU definition. do > you know why? what does this command show? > > how do i add your configuration suggestion to my guest cpu? Here's the output of "qemu-kvm -cpu ?". It shows us which cpu models qemu can emulate. x86 Opteron_G3 x86 Opteron_G2 x86 Opteron_G1 x86 Nehalem x86 Penryn x86 Conroe x86 [n270] x86 [athlon] x86 [pentium3] x86 [pentium2] x86 [pentium] x86 [486] x86 [coreduo] x86 [kvm32] x86 [qemu32] x86 [kvm64] x86 [core2duo] x86 [phenom] x86 [qemu64] You can use 'virsh edit' or edit the xml configuration file of the vm to specify the cpu model. Just put the cpu definition into the root (domain) tag. <domain type='kvm'> <cpu mode='custom' match='exact'> <model fallback='allow'>core2duo</model> <feature policy='require' name='vmx'/> </cpu> After that, you should be able to see it in the output of 'virsh dumpxml'. And the cpuinfo from guest should read like this: #cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz > > -- > Yaniv Bronhaim. > RedHat, Israel > 09-7692289 > 054-7744187 --------------010902010807020702030807 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> On 09/27/2012 03:21 PM, ybronhei wrote: <blockquote cite="mid:5063FE67.1080101@redhat.com" type="cite"> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> <div class="moz-cite-prefix">On 09/26/2012 04:06 AM, Mark Wu wrote: </div> <blockquote cite="mid:50626322.6020307@linux.vnet.ibm.com" type="cite"> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> On 09/26/2012 12:58 AM, Nathanaël Blanchet wrote: <blockquote cite="mid:5061E2C1.2060800@abes.fr" type="cite">Hello, I've tried many times to run a node as a guest in ovirt following <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://wiki.ovirt.org/wiki/Vdsm_Developers#Running_Node_as_guest_-_Nested_K…">http://wiki.ovirt.org/wiki/Vdsm_Developers#Running_Node_as_guest_-_Nested_K…</a> . The result is that I'm able to register such a host in engine, but it is impossible to start any vm on it. If I boot on an ISO, I can see the first prompt and move between the items. But since I begin the installation I have a blank screen and the vm goes into pause mode in vit-manager. Then I have no way else than rebooting the hypervisor guest because it is impossible to resume. When I get logs on the real host, I can find this : arning : x86Decode:1306 : Preferred CPU model Westmere not allowed by hypervisor; closest supported model will be used Sep 25 17:11:59 khamsin libvirtd[23053]: 2012-09-25 15:11:59.384+0000: 23054: warning : x86Decode:1306 : Preferred CPU model Westmere not allowed by hypervisor; closest supported model will be used Sep 25 17:12:19 khamsin libvirtd[23053]: 2012-09-25 15:12:19.150+0000: 23055: warning : x86Decode:1306 : Preferred CPU model Westmere not allowed by hypervisor; closest supported model will be used Sep 25 17:45:48 khamsin libvirtd[23053]: 2012-09-25 15:45:48.342+0000: 23058: warning : x86Decode:1306 : Preferred CPU model Westmere not allowed by hypervisor; closest supported model will be used Sep 25 18:07:05 khamsin libvirtd[23053]: 2012-09-25 16:07:05.834+0000: 23058: warning : x86Decode:1306 : Preferred CPU model Nehalem not allowed by hypervisor; closest supported model will be used Sep 25 18:44:47 khamsin libvirtd[23053]: 2012-09-25 16:44:47.340+0000: 23057: warning : x86Decode:1306 : Preferred CPU model Penryn not allowed by hypervisor; closest supported model will be used As you can see, I have tried many cpu type for launching this guest hypervisor, but none of them is accepted by the hypervisor. Plus, I've modified each time the family type in the cluster tab, but it is the same. On the hist: #virsh capabilities gives <cpu>       <arch>x86_64</arch>       <model>Westmere</model>       <vendor>Intel</vendor> Thanks for your help </blockquote> What does the command 'qemu-kvm -cpu ?' give ?   Could you please try the following guest cpu definition? <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> <pre style="border: 0px; font-family: 'Courier 10 Pitch', Courier, monospace; font-size: 13px; font-style: normal; font-weight: normal; margin: 0px 0px 1.625em; outline: 0px; padding: 0.75em 1.625em; vertical-align: baseline; background-color: rgb(244, 244, 244); font-variant: normal; line-height: 1.5; overflow: auto; color: rgb(55, 55, 55); letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-position: initial initial; background-repeat: initial initial;"><tt style="border: 0px; font-family: inherit; font-size: 13px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> <cpu match='exact'> <model>core2duo</model> <feature policy='require' name='vmx'/> </cpu> </tt></pre> <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ Users mailing list <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users(a)ovirt.org</a> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a> </pre> </blockquote> I've got error too during definition of nested kvm. When i run qemu-kvm cpu ? i get: Unable to find x86 CPU definition. do you know why? what does this command show? how do i add your configuration suggestion to my guest cpu? </blockquote> Here's the output of  "qemu-kvm -cpu ?". It shows us which cpu models qemu can emulate. x86       Opteron_G3 x86       Opteron_G2 x86       Opteron_G1 x86          Nehalem x86           Penryn x86           Conroe x86           [n270] x86         [athlon] x86       [pentium3] x86       [pentium2] x86        [pentium] x86            [486] x86        [coreduo] x86          [kvm32] x86         [qemu32] x86          [kvm64] x86       [core2duo] x86         [phenom] x86         [qemu64] You can use 'virsh edit' or edit the xml configuration file of the vm to specify the cpu model. Just put the cpu definition into the root (domain) tag. <domain type='kvm'>   <cpu mode='custom' match='exact'>     <model fallback='allow'>core2duo</model>     <feature policy='require' name='vmx'/>   </cpu> After that, you should be able to see it in the output of 'virsh dumpxml'.  And the cpuinfo from guest should read like this: #cat /proc/cpuinfo processor    : 0 vendor_id    : GenuineIntel cpu family    : 6 model        : 15 model name    : Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz <blockquote cite="mid:5063FE67.1080101@redhat.com" type="cite"> <pre class="moz-signature" cols="72">-- Yaniv Bronhaim. RedHat, Israel 09-7692289 054-7744187</pre> </blockquote> </body> </html> --------------010902010807020702030807--

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[Users] Cannot connect to guest with spice console; SSL validate error
by Jeff Mayes 27 Sep '12

27 Sep '12

I did not see a solution for this issue, yet spent a couple of hours on it. In my case, the following command cleared the issue for all VMs: iptables --flush After that, no more SSL errors and I could connect via Spice. Jeff ----- Jeff Mayes

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[Users] How to change number of cpu cores in Ovirt 3.1 with the python sdk.
by Don Dupuis 27 Sep '12

27 Sep '12

I am using Ovirt 3.1 with the ovirt-engine-sdk. I have written a python script using this sdk but I can't seem to get the parameters right to change the cpu cores when creating the vm. All the other parameters I want to change works just fine. Does anyone have an example on how to do this. Thanks Don

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[Users] general (totally noob) questions...
by Michael Hauber 26 Sep '12

26 Sep '12

While I am not completely new to running instances in KVM/Qemu, I am a total noob when it comes to clustering. While I realize that not all of these questions pertain specifically to the oVirt project, I would much rather get input from people that have experience in this environment. I am in the process of designing my next server farm and would like to know some basics that I can't seem to find the answers to via google search. Background: I have a server farm setup for a large family. It consists of 9 servers (minimal-to-medium loads for the most part, but they are in poor condition physically). My hopes are to run this same setup virtually in a 3-node cluster. I can run the entire farm in a virtual environment on a host with a dual, quad-core box with 64gig RAM. That said, I know that each of these nodes will be capable of handling the entire load by itself if absolutely necessary. For disk space, my hopes are to use two drive arrays (10 configuration?) which I can build (up and out) from without having too much trouble. Everything will be fiber, including drops to the computers and televisions. Copper will exist as well for things like POE, printers, etc. (but not in scope) Questions: 1. As I understand it, a N-to-N configuration means that there will be load balancing between the nodes as well as failover. Is the load balancing something that is manual (I have to monitor/balance the load manually, or is it done automatically?) 2. If it is done automatically, how do the loads get split up? Is the virtual machine itself the unit of load that transfers from one node to another or does it go so far as balancing services running inside those virtual machines? 3. For the fail-over, is it seemless in the sense that the user's connections don't get reset or is there a short period of down-time before the service is available again? While this isn't a big issue for me, it is something that I've been wondering about. 4. Fibre channel or FCOE? (I've spent entire evenings trying to get a straight answer through google searches, but there seem to be way too many agendas). Being that one of the virtual servers will be a media server for the televisions (new addition), my worry is lag-time (I would like to serve at least 5 televisions without lag-time). The array will also support things like file server, space for about 2-dozen www (family pages (lots of pictures)), space for mail, space for backups (rSync,Amanda), ISO boots, etc. I have the logical and physical topology drawn up for the most part, but until I understand a bit more, I'm scared _less about dropping any money into the project because I've neither seen a setup like this in action, and what I find online seems a bit vague in the way of details (dumbed-down enough for the likes of me to know if the hardware I'm buying is necessary and/or sufficient to achieve my goals). Any and all pointers, suggestions, patience, etc. would be greatly appreciated. mchauber

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[Users] I can't figure out how to add a user?
by Alan Johnson 26 Sep '12

26 Sep '12

First off, oVirt noob alert. That said, I have been able to figure out and over come most of my issues getting oVirt running on CentOS 6.3 the various documentation that is available, including this list's archives for the last few months. (Side question: I haven't found a good way to search the archives short of using site: within google search, but that does not seem to work so well, so I have been relying on gmail's collection of the messages since I subscribed a few months ago. Is there a better way?) Anyway, this one seems like it should be so simple that I feel like I must be missing some thing painfully obvious. That is, I don't seem to be able to create a user. The GUI's add button on the user tab just lets me search existing users, but does not provide anywhere to enter new user info. I have successfully "added" the admin@internal user several times while bumbling around with that interface, but this is not terribly helpful since it has always been there. To what I have added it, I am am not entirely clear. I don't see anything in the getting started guide, and the administrator guide just walks me through the same useless steps I mentioned above in the user tab. Any nudge in the right direction would be greatly appreciated. I'll even accept dope slaps at this point if warranted. =) Thanks in advance for your time and consideration. _______________ Alan Johnson alan(a)datdec.com

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[Users] Upgrade problem.
by Andres Gonzalez 25 Sep '12

25 Sep '12

Hi! I upgraded from oVirt 3.1.16 to 3.1.19 under CentOS 6.3 (yum update). The thing is now oVirt is not starting. The web interfaces says: Service Temporarily Unavailable, the VMs don't starts (the box is configured as all-in-one) I have 2 VMs on production. What I can do ? Thanks.-

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[Users] Call for Agenda Items -- oVirt Weekly Sync 2012-09-26
by Mike Burns 25 Sep '12

25 Sep '12

Meeting Time and Place oVirt Weekly Sync * Wednesdays @ 15:00 UTC (may change during DST changes) - always at 7:00am US Pacific, 10:00am US Eastern. * To see in your timezone date -d 'WEDNESDAY 1000 EDT' * On IRC: #ovirt on irc.oftc.net This is the agenda for the 2012-09-26 meeting: * Status of Next Release (Release Criteria, Target GA date) * Sub-project reports (engine, vdsm, node, infra) * Workshops If you have other topics, please reply to me and I will add them to the agenda. If you propose a topic, please be prepared to lead the discussion during the meeting. Please note that this week's meeting will be run by Karsten (quaid) since I'm out of the office. Thanks Mike

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[Users] How to change number of cpu cores with python sdk
by Don Dupuis 24 Sep '12

24 Sep '12

I am using Ovirt 3.1 with the ovirt-engine-sdk. I have written a python script using this sdk but I can't seem to get the parameters right to change the cpu cores when creating the vm. All the other parameters I want to change works just fine. Does anyone have an example on how to do this. Thanks Don

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[Users] Installation problem
by Dave Neary 24 Sep '12

24 Sep '12

Hi all, I was working through the installation of ovirt-engine today (after spending more time than I care to admit struggling with networking & DNS issues - VPNs, dnsmasq, "classic" network start-up and iptables/firewall rules can interract with each other in strange and surprising ways). Anyway - I went through the engine set-up successfully, and got the expected message at the end: "**** Installation completed successfully ******" with a message to visit the engine web application to finish set-up. Unfortunately, when I connected (after resolving networking issues) to the server in question, I got a "Service temporarily unavailable" error (503) from Apache. in httpd's error.log, I have: > [Fri Sep 21 13:37:03 2012] [error] (111)Connection refused: proxy: AJP: attempt to connect to 127.0.0.1:8009 (localhost) failed > [Fri Sep 21 13:37:03 2012] [error] ap_proxy_connect_backend disabling worker for (localhost) > [Fri Sep 21 13:37:03 2012] [error] proxy: AJP: failed to make connection to backend: localhost When I try to restart the ovirt-engine service, I get the following in journalctl: > Sep 21 13:34:44 clare.neary.home engine-service.py[5172]: The engine PID file "/var/run/ovirt-engine.pid" already exists. > Sep 21 13:34:44 clare.neary.home systemd[1]: PID 1264 read from file /var/run/ovirt-engine.pid does not exist. > Sep 21 13:34:44 clare.neary.home systemd[1]: Unit ovirt-engine.service entered failed state. I tried to clean up and restart, but engine-cleanup failed: > [root@clare ovirt-engine]# engine-cleanup -u > > Stopping JBoss service... [ DONE ] > > Error: Couldn't connect to the database server.Check that connection is working and rerun the cleanup utility > Error: Cleanup failed. > please check log at /var/log/ovirt-engine/engine-cleanup_2012_09_21_14_02_37.log It turns out, in /var/log/messages, that I have these error messages: > Sep 21 14:00:59 clare pg_ctl[5298]: FATAL: could not create shared memory segment: Invalid argument > Sep 21 14:00:59 clare pg_ctl[5298]: DETAIL: Failed system call was shmget(key=5432001, size=36519936, 03600). > Sep 21 14:00:59 clare pg_ctl[5298]: HINT: This error usually means that PostgreSQL's request for a shared memory segment exceeded your kernel's SHMMAX parameter. You can either reduce the request size or reconfigure the kernel with larger SHMMAX. To reduce the request size (currently 36519936 bytes), reduce PostgreSQL's shared memory usage, perhaps by reducing shared_buffers or max_connections. > Sep 21 14:00:59 clare pg_ctl[5298]: If the request size is already small, it's possible that it is less than your kernel's SHMMIN parameter, in which case raising the request size or reconfiguring SHMMIN is called for. > Sep 21 14:00:59 clare pg_ctl[5298]: The PostgreSQL documentation contains more information about shared memory configuration. > Sep 21 14:01:03 clare pg_ctl[5298]: pg_ctl: could not start server > Sep 21 14:01:03 clare pg_ctl[5298]: Examine the log output. > Sep 21 14:01:03 clare systemd[1]: postgresql.service: control process exited, code=exited status=1 > Sep 21 14:01:03 clare systemd[1]: Unit postgresql.service entered failed state. I increased the kernel's SHMMAX, and engine-cleanup worked correctly. Has anyone else experienced this issue? When I re-run engine-setup, I also got stuck when reconfiguring NFS - when engine-setup asked me if I wanted to configure the NFS domain, I said "yes", but then it refused to accept my input of "/mnt/iso" since it was already in /etc/exports - perhaps engine-cleanup should also remove ISO shares managed by ovirt-engine, or else handle more gracefully when someone enters an existing export? The only fix I found was to interrupt and restart the engine set-up. Also, I have no idea whether allowing oVirt to manage iptables will keep any extra rules I have added (specifically for DNS services on port 53 UDP) which I added to the iptables config. I didn't take the risk of allowing it to reconfigure iptables the second time. After all that, I got an error when starting the JBoss service: > Starting JBoss Service... [ ERROR ] > Error: Can't start the ovirt-engine service > Please check log file /var/log/ovirt-engine/engine-setup_2012_09_21_14_28_11.log for more information And when I checked that log file: > 2012-09-21 14:30:02::DEBUG::common_utils::790::root:: starting ovirt-engine > 2012-09-21 14:30:02::DEBUG::common_utils::835::root:: executing action ovirt-engine on service start > 2012-09-21 14:30:02::DEBUG::common_utils::309::root:: Executing command --> '/sbin/service ovirt-engine start' > 2012-09-21 14:30:02::DEBUG::common_utils::335::root:: output = > 2012-09-21 14:30:02::DEBUG::common_utils::336::root:: stderr = Redirecting to /bin/systemctl start ovirt-engine.service > Job failed. See system journal and 'systemctl status' for details. > > 2012-09-21 14:30:02::DEBUG::common_utils::337::root:: retcode = 1 > 2012-09-21 14:30:02::DEBUG::setup_sequences::62::root:: Traceback (most recent call last): > File "/usr/share/ovirt-engine/scripts/setup_sequences.py", line 60, in run > function() > File "/bin/engine-setup", line 1535, in _startJboss > srv.start(True) > File "/usr/share/ovirt-engine/scripts/common_utils.py", line 795, in start > raise Exception(output_messages.ERR_FAILED_START_SERVICE % self.name) > Exception: Error: Can't start the ovirt-engine service And when I check the system journal, we're back to the service starts, but the PID mentioned in the PID file does not exist. Any pointers into how I might debug this issue? I haven't found anything similar in a troubleshooting page, so perhaps it's not a common error? Cheers, Dave. -- Dave Neary Community Action and Impact Open Source and Standards, Red Hat Ph: +33 9 50 71 55 62 / Cell: +33 6 77 01 92 13

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