- Users - libvirt List Archives

[libvirt-users] Monitoring and statistics through libvirt
by Tomi 06 Oct '10

06 Oct '10

Hi folks, is it possible to monitor and gather statistics in realtime (CPU, memory, HDD, network, ... - something like dstat) of guest systems with libvirt through console from host system (KVM based)? If yes, do those guests need to be created through libvirt? Thanks for your help and time.

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[libvirt-users] [PATCH] Re: Python XML parsing of domain descriptions?
by James M Leddy 06 Oct '10

06 Oct '10

rp.gs.com> Jon, Would you try with this patch? diff -c libvirt-0.6.3/docs/schemas/domain.rng libvirt-0.6.3.updateschema/docs/schemas/domain.rng *** libvirt-0.6.3/docs/schemas/domain.rng 2010-07-23 12:44:45.000000000 -0400 --- libvirt-0.6.3.updateschema/docs/schemas/domain.rng 2010-10-05 14:17:16.700561725 -0400 *************** *** 150,155 **** --- 150,156 ---- </attribute> <attribute name="machine"> <choice> + <value>rhel5.4.0</value> <value>xenfv</value> <value>pc</value> <value>isapc</value> -- James M. Leddy Technical Account Manager Red Hat Inc.

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[libvirt-users] KVM Live Migration
by Mike Hall 06 Oct '10

06 Oct '10

We have the following test environment: 2 x CentOS 5.5 KVM virtual hosts 2 x CentOS 5.5 network storage boxes with NFS shares on LVs on DRBD (primary/secondary, no HA, just replication). We have installed both CentOS and Win7 guests which live migrate almost instantly between hosts using Virt Manager (or virsh migrate). The problem is that the guests does not retain their running state after migration, but instead arrive on the new host in "reboot after unclean shutdown" state. The migrated machines also lose IP connectivity (static IP) upon migration to new host, but regain it on migration back to original host. So, live migration in this case isn't producing the expected results (a running, usable guest). Same results using "migrate offline" option and pausing machines before migration. Any pointers on what we're doing wrong? Is there a need for us to implement hook scripts? Michael Hall IT Communications Officer Alice Springs Town Council mhall(a)astc.nt.gov.au (08) 8950 0561

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[libvirt-users] Mounting an lvm
by Dale Amon 05 Oct '10

05 Oct '10

I converted a system disk from a virtualbox VM and added to the config on a qemu VM. All seems well until I try to mount it. The virtual machine shows data for the disk image using commands like: pvs lvs lvdisplay xena-1 but there is no /dev/xena-1/root to be mounted. I also cannot seem to figure out whether the lvm related modules are available for the virtual machine kernel. Has anyone else tried playing this game?

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[libvirt-users] Puppet Module for Virtualization Management
by Carla Araujo 05 Oct '10

05 Oct '10

Hi all! Puppet [0] is an Open Source data center automation and configuration management framework. Puppet provides system administration with a simplified platform that allows for consistent, transparent, and flexible system management. Puppet can be extended with new modules, which are reusable, sharable units of Puppet code. This year, during the Google Summer of Code [1], I developed a new Puppet's module: Puppet-virt. Puppet-virt [2] provides a new type that allows the administrator to deploy and manage virtual machines using r *uby-libvirt* . At first, only Xen fullyvirtualization, Xen paravirtualization, KVM and OpenVZ are supported. If you have any suggestion or contribution, fell free to contact me and/or fork the repository at github. :) Regards, Carla Souza [0] http://www.puppetlabs.com/ [1] http://socghop.appspot.com/ [2] http://github.com/carlasouza/puppet-virt

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[libvirt-users] LXC
by Papp Tamás 05 Oct '10

05 Oct '10

hi All, I'm new to this list and also not a professional libvirt user:) I'm trying to use it for running a container. This is my config: <domain type='lxc'> <name>test</name> <uuid>d3667da2-061a-7b20-a29c-3afc798a257e</uuid> <memory>500000</memory> <currentMemory>500000</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/lib/libvirt/libvirt_lxc</emulator> <filesystem type='mount'> <source dir='/data/lxc/test/rootfs'/> <target dir='/'/> </filesystem> <interface type='bridge'> <mac address='52:54:00:b8:a7:80'/> <source bridge='br1'/> <target dev='veth0'/> </interface> <console type='pty'> <target type='serial' port='0'/> </console> </devices> </domain> It's up and running after start: 3141 ? Ss 0:00 /usr/lib/libvirt/libvirt_lxc --name test --console 107 --background --veth veth1 3148 pts/0 Ss+ 0:00 \_ /sbin/init 3158 ? S<s 0:00 \_ udevd --daemon 3641 ? S< 0:00 | \_ udevd --daemon 3643 ? S< 0:00 | \_ udevd --daemon 3690 ? Sl 0:00 \_ rsyslogd -c4 3703 ? Ss 0:00 \_ /usr/sbin/sshd 3730 ? Ss 0:00 \_ cron 3767 ? Ssl 0:00 \_ /usr/sbin/nscd 3818 ? Ss 0:00 \_ /usr/sbin/munin-node 3989 ? Ss 0:00 \_ /usr/lib/postfix/master 3996 ? S 0:00 | \_ pickup -l -t fifo -u -c 3997 ? S 0:00 | \_ qmgr -l -t fifo -u 3998 ? Ss 0:00 \_ /sbin/getty -8 38400 tty1 I'm trying to connect to the console: $ virsh --connect=lxc:/// console test Connected to domain test Escape character is ^] And it got off: $ virsh --connect=lxc:/// list --all Id Name State ---------------------------------- - test shut off /var/log/libvirt/lxc/test.log: 23:17:13.463: error : lxcFdForward:231 : read of fd 7 failed: Input/output error The system is Ubuntu 10.10 beta, 2.6.35-22-server and libvirt 0.8.3-1ubuntu14. What's wrong? I am out of idea. Thank you, tamas

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[libvirt-users] Updates to cucmber-vhost - guineapigs wanted! :)
by Matthew Macdonald-Wallace 04 Oct '10

04 Oct '10

Hi all, For those of you that are using cucumber for Continuous Integration or similar I've created a set of steps that enable you to use cobbler and cucumber to auto-provision using Libvirt. I've just made some changes to the code however I don't have access to all the hardware/software required to test it fully. If you are able to, please check out the code from http://tinyurl.com/virtcuke (my github repo) and test, posting bugs against the project. Thanks in advance, Matt

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[libvirt-users] virt-xml-validate b0rked?
by Stanley, Jon [Tech] 04 Oct '10

04 Oct '10

It seems that virt-xml-validate doesn't validate what *has* to be valid XML, that generated by virsh dumpxml against a running domain: [root@etc752365a ~]# virsh list Id Name State ---------------------------------- 2 rhel55 running 3 rhel53 running [root@etc752365a ~]# virsh dumpxml rhel55 > foo.xml [root@etc752365a ~]# virt-xml-validate foo.xml foo.xml:8: element type: Relax-NG validity error : Invalid attribute arch for element type foo.xml:9: element boot: Relax-NG validity error : Element os failed to validate content foo.xml:8: element type: Relax-NG validity error : Error validating value foo.xml:8: element type: Relax-NG validity error : Element type failed to validate content foo.xml:1: element domain: Relax-NG validity error : Invalid sequence in interleave foo.xml:1: element domain: Relax-NG validity error : Element domain failed to validate content foo.xml fails to validate Is there something that I'm doing wrong here? This is the libvirt that comes with RHEL5.5

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[libvirt-users] Anyone has new libvirt java binding jar, i want the latest one. i dont have the build env at my end.
by Ravi Pawar 04 Oct '10

04 Oct '10

-- Thanks & Regards Ravi Pawar

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[libvirt-users] Import/Export Support
by Mitchell Hashimoto 04 Oct '10

04 Oct '10

Hello, I'm looking into using libvirt in the near future, however an important part of our workflow is the ability to import and export virtual machines (in VirtualBox). Does libvirt provide an easy way to do this? I couldn't find anything obvious on the API reference. Thanks, Mitchell

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