- Users - libvirt List Archives

[libvirt-users] shutdown windows 7 vm although someone is logged on via RemoteDesktop
by Lentes, Bernd 04 Nov '15

04 Nov '15

Hi, how can i shutdown a windows 7 vm although someone is logged on to that vm via RemoteDesktop ? Currently libvirt waits 5 min for the vm to shutdown and then switches it off. Bernd -- Bernd Lentes Systemadministration institute of developmental genetics Gebäude 35.34 - Raum 208 HelmholtzZentrum München bernd.lentes(a)helmholtz-muenchen.de phone: +49 (0)89 3187 1241 fax: +49 (0)89 3187 2294 Wer Visionen hat soll zum Hausarzt gehen Helmut Schmidt Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671

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[libvirt-users] Creating network interfaces with specific name in LXC
by Harish Vishwanath 03 Nov '15

03 Nov '15

Hello I am trying to create interfaces within an LXC container with specific name. I am using the following XML: <interface type='network' name='blah'> <source network='dpbr_n_0'/> </interface> This doesn't seem to work; it always ends up creating interface with name as "eth0". I found some examples here: http://libvirt.org/guide/html/Application_Development_Guide-Network_Interfa… That uses interface type as "ethernet" and specifies name also, If I do that, I get back an error while starting the container as "Unsupported network type ethernet". Appreciate your help. Regards, Harish

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[libvirt-users] changeBegin() on python API
by Ramon Medeiros 03 Nov '15

03 Nov '15

Hi, is changeBegin() working on python? I was trying to use the following method: if = conn.interfaceLookupByName("name") if.undefine() I saw that changeBegin() does not commit changes, but i can't use it. -- Ramon Nunes Medeiros Kimchi Developer Linux Technology Center Brazil IBM Systems & Technology Group Phone : +55 19 2132 7878 ramonn(a)br.ibm.com

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[libvirt-users] virsh edit from script ??
by Jean-Pierre Ribeauville 02 Nov '15

02 Nov '15

Hi, I need to add , via script , a channel device in .xml guest config file. Is virsh edit useable from a "standard" script or is there any more suitable way to use ? Thanks. J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] virDomainMemoryStats missing counters ...
by Jean-Pierre Ribeauville 02 Nov '15

02 Nov '15

Hi, In which libvirt version are these virDomainMemoryStats() counters handled ? VIR_DOMAIN_MEMORY_STAT_SWAP_OUT VIR_DOMAIN_MEMORY_STAT_MAJOR_FAULT VIR_DOMAIN_MEMORY_STAT_MINOR_FAULT VIR_DOMAIN_MEMORY_STAT_UNUSED VIR_DOMAIN_MEMORY_STAT_AVAILABLE Thanks. Regards, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] problem connecting to libvirtd remotely; compiled from sources
by Andrei Perietanu 02 Nov '15

02 Nov '15

I am trying to add libvirt to a linux machine running a custom built linux- there is no packet manager, everything is compiled using buildroot. On this VM server, I am running libvirt-1.2.2 and the linux kernel is 3.18.21 Libvirtd starts and runs in the background. I can add/edit VMs using Virt-install. If I try to connect to the local qemu, everything works: virsh -c qemu:///system If I ssh in from the remote machine, as root, and run virsh, everything seems to work But if I try to connect using virt-manager, or *virsh -c qemu+ssh://root@<server_ip>/system* I get an error: error: failed to connect to the hypervisor error: Cannot recv data: ssh: connect to host 10.10.200.85 port 22: Connection refused: Connection reset by peer Any ideas? Thanks, Andrei -- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you receive this in error please contact the sender and delete the material from any computer immediately. It is the policy of Klas Limited to disavow the sending of offensive material and should you consider that the material contained in the message is offensive you should contact the sender immediately and also your I.T. Manager. Klas Telecom Inc., a Virginia Corporation with offices at 1101 30th St. NW, Washington, DC 20007. Klas Limited (Company Number 163303) trading as Klas Telecom, an Irish Limited Liability Company, with its registered office at Fourth Floor, One Kilmainham Square, Inchicore Road, Kilmainham, Dublin 8, Ireland.

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[libvirt-users] GUEST Memory statistics secret revealed ...
by Jean-Pierre Ribeauville 30 Oct '15

30 Oct '15

Hi, I'm wondering how to explain following metrics I got from libvirt, regarding memory stats for the two GUESTS running on my host. 1) virDomainGetXMLDesc() shows these values : memmax (1024000.000000) memcurrent(1024000.000000) memmax (2048000.000000) .memcurrent(2048000.000000) 2) As values returned by virDomainMemoryStats(), I got these values : VIR_DOMAIN_MEMORY_STAT_ACTUAL_BALLOON: active_balloon (1024000.000000) active_balloon (2048000.000000) VIR_DOMAIN_MEMORY_STAT_RSS: rss(1194195.312500) rss(2039269.531250 3) By using cgroup counters "memory.usage_in_bytes" for both Guests, I got these values : memusage (1 207 207 031 250) memusage (2 834 503 906 250) How is it possible to have a balloon size equal to memcurrent ? What "memory.usage_in_bytes" stands for (it's the maximum value of the three metrics I got for each GUEST) ? FYI , I use a 1.2.8 libvirt. Thanks. Reagrds, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] failed to pivot job for disk vdc
by Nerijus Baliunas 30 Oct '15

30 Oct '15

Hello, I did a virsh snapshot-create-as --domain meta sn1 --diskspec vda,file=/var/lib/libvirt/images/meta-sn1.qcow2 --disk-only --atomic --no-metadata Then I successfully blockcommitted 2 disks: virsh blockcommit meta vda --active --verbose --pivot virsh blockcommit meta vdb --active --verbose --pivot But when doing virsh blockcommit meta vdc --active --verbose --pivot I got: Block commit: [100 %]error: failed to pivot job for disk vdc error: block copy still active: disk 'vdc' not ready for pivot yet Domain snapshot sn1 created And now it looks like this: virsh domblklist meta Target Source ------------------------------------------------ vda /var/lib/libvirt/images/meta.qcow2 vdb /var/lib/libvirt/images/meta-home.qcow2 vdc /var/lib/libvirt/images/meta-pgsql.sn1 How do I make vdc to be the initial disk, not the snapshot one? Regards, Nerijus

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[libvirt-users] How to retrieve legacy cgroups location ?
by Jean-Pierre Ribeauville 29 Oct '15

29 Oct '15

Hi, As told in "Control Groups Resource Management" libvirt page : Legacy cgroups layout Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy libvirt/{qemu,lxc}/$VMNAME which was rooted at the point in the hierarchy where libvirtd itself was located. So if libvirtd was placed at /system/libvirtd.service by systemd, the groups for each virtual machine / container would be located at /system/libvirtd.service/libvirt/{qemu,lxc}/$VMNAME. In addition to this, the QEMU drivers further child groups for each vCPU thread and the emulator thread(s). This leads to a hierarchy that looked like I'm trying to retrieve this layout : $ROOT | +- system | +- libvirtd.service | +- libvirt | +- qemu | | | +- vm1 | | | | | +- emulator | | +- vcpu0 | | +- vcpu1 | | | +- vm2 | | | | | +- emulator | | +- vcpu0 | | +- vcpu1 | | | +- vm3 | | | +- emulator | +- vcpu0 | +- vcpu1 How may I find where systemd has placed libvirtd ? I use libvirt 0.10.2 on a RHEL6 2.6.32-431.el6.x86_64 Thx for help. J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] virsh can't support VM offline blockcommit
by justlibvirt＠gmail.com 29 Oct '15

29 Oct '15

Hi everyone! I use the libvirt(version: 1.2.2) and QEMU(version: 2.2.1) to test qemu snapshot features: I tried virsh blockcommit when VM offline, the virsh blockcommit failed: the error messase as below: error: Requested operation is not valid: domain is not running when I start the VM, the virsh blockcommit work fine! my question is：we need virsh support blockcommit when VM offline。how do？ we test qemu snapshot as follows： we need create snapshot of the cycle，and by virsh blockcommit merge snapshot chain，but when VM offline， the virsh blockcommit will fail， someone suggest me：when VM offline，may use qemu-img commit to submit snapshot turn，but qemu-img can't modify snapshot chain backing relation，it need we use qemu-img rebase amend snapshot‘s backingfile， the main question is when we use qemu-img rebase modify snapshot's backingfile, if someone start the VM, it will may lead to VM filesystem readonly。 we should how to solve the question? thanks! justlibvirt(a)gmail.com

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