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[libvirt] libvirt-java: change org.libvirt.Error implementing Serializable
by Daniel Schwager 20 Aug '08

20 Aug '08

Hi java-api-team (-: could you please let org.libvirt.Error implements the serializable interface ? Exceptions (and the content like org.libvirt.Error) should be serializable. I got an exception on my host system connected via RMI to the client-system running libvirt-java (libvirt-java, cvs-snapshot 2008-08-18) like this: ------------------------------------------------ ... cause:java.rmi.UnmarshalException: Error unmarshaling return; nested exception is: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.libvirt.Error package org.libvirt; ------------------------------------------------ public class Error { VIR_FROM_NONE, /** * Error at Xen hypervisor layer */ VIR_FROM_XEN, ------------------------------------------------ thank you very much regards Danny ------------------------------------------------------------------- DT Netsolution GmbH - Taläckerstr. 30 - D-70437 Stuttgart Geschäftsführer: Daniel Schwager, Stefan Hörz - HRB Stuttgart 19870 Tel: +49-711-849910-32, Fax: -932 - Mailto:daniel.schwager@dtnet.de

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RE: [libvirt] Using Xen config files
by Matthew Donovan 20 Aug '08

20 Aug '08

Found it! I added serial and console devices to the XML and it appears to be running. It's not working completely as expcted but it's doing more than it was. Thanks for your help. -matthew > -----Original Message----- > From: Richard W.M. Jones [mailto:rjones@redhat.com] > Sent: Wednesday, August 20, 2008 11:44 AM > To: Matthew Donovan > Cc: libvir-list(a)redhat.com > Subject: Re: [libvirt] Using Xen config files > > On Wed, Aug 20, 2008 at 11:35:17AM -0400, Matthew Donovan wrote: > > Thanks for the quick reply! > > > > I set the LIBVIRT_DEBUG flag to 1 and ran it again. (The > output is below.) > [...] > > [root@grape ~]$ gcc -g virt_test.c -lvirt && ./a.out > > DEBUG: libvirt.c: virInitialize (register drivers) > > DEBUG: xen_internal.c: xenHypervisorInit (Using new > hypervisor call: 30001 > > ) > > DEBUG: xen_internal.c: xenHypervisorInit (Using hypervisor > call v2, sys ver3 > > dom ver5 > > ) > > DEBUG: libvirt.c: virConnectOpen (name=xen:///) > > DEBUG: libvirt.c: do_open (name "xen:///" to URI components: > > scheme xen > > opaque (null) > > authority (null) > > server (null) > > user (null) > > port 0 > > path / > > ) > > DEBUG: libvirt.c: do_open (trying driver 0 (Test) ...) > > DEBUG: libvirt.c: do_open (driver 0 Test returned DECLINED) > > DEBUG: libvirt.c: do_open (trying driver 1 (QEMU) ...) > > DEBUG: libvirt.c: do_open (driver 1 QEMU returned DECLINED) > > DEBUG: libvirt.c: do_open (trying driver 2 (Xen) ...) > > DEBUG: xen_unified.c: xenUnifiedOpen (Trying hypervisor sub-driver) > > DEBUG: xen_unified.c: xenUnifiedOpen (Activated hypervisor > sub-driver) > > DEBUG: xen_unified.c: xenUnifiedOpen (Trying XenD sub-driver) > > DEBUG: xen_unified.c: xenUnifiedOpen (Activated XenD sub-driver) > > DEBUG: xen_unified.c: xenUnifiedOpen (Trying XS sub-driver) > > DEBUG: xen_unified.c: xenUnifiedOpen (Activated XS sub-driver) > > DEBUG: libvirt.c: do_open (driver 2 Xen returned SUCCESS) > > DEBUG: libvirt.c: do_open (network driver 0 Test returned DECLINED) > > DEBUG: libvirt.c: do_open (network driver 1 QEMU returned DECLINED) > > DEBUG: remote_internal.c: doRemoteOpen (proceeding with > name = xen:///) > > DEBUG: libvirt.c: do_open (network driver 2 remote returned SUCCESS) > > DEBUG: libvirt.c: do_open (storage driver 0 Test returned DECLINED) > > DEBUG: libvirt.c: do_open (storage driver 1 storage > returned DECLINED) > > DEBUG: libvirt.c: do_open (storage driver 2 remote returned SUCCESS) > > DEBUG: libvirt.c: virDomainDefineXML (conn=0x96fe478, xml=<domain > > > type='xen'><name>fc8.conf</name><os><type>hvm</type><loader>/u > sr/lib/xen/boo > > t/hvmloader</loader><boot > > > dev='hd'/></os><memory>1024</memory><vcpu>1</vcpu><on_poweroff > >destroy</on_p > > > oweroff><on_reboot>restart</on_reboot><on_crash>restart</on_cr > ash><features> > > <pae/><acpi/><apic/></features><clock > > > sync="localtime"/><devices><emulator>/usr/lib/xen/bin/qemu-dm< > /emulator><int > > erface type='bridge'><source bridge='xenbr0'/><script > > path='vif-bridge'/></interface><disk type='block'><source > > dev='/dev/vgvms/fc8'/><target dev='hda'/></disk><disk type='block' > > device='cdrom'><source dev='/dev/cdrom'/><target > > dev='hdc'/><readonly/></disk><graphics > type='vnc'/></devices></domain>) > > DEBUG: libvirt.c: virDomainLookupByName (conn=0x96fe478, > name=fc8.conf) > > DEBUG: hash.c: __virGetDomain (New hash entry 0x9702a18) > > DEBUG: libvirt.c: virDomainCreate (domain=0x9702a18) > > DEBUG: libvirt.c: virDomainGetInfo (domain=0x9702a18, > info=0xbfa2b658) > > state = 0 > > DEBUG: libvirt.c: virConnectClose (conn=0x96fe478) > > DEBUG: hash.c: virUnrefConnect (unref connection 0x96fe478 > xen:/// 2) > > It certainly looks OK, and it seems like the domain should run after > virDomainCreate. Have you tried adding a delay of 30 seconds just to > check if the domain is starting up slowly? > > Dan & Dan, any ideas? > > Rich. > > -- > Richard Jones, Emerging Technologies, Red Hat > http://et.redhat.com/~rjones > virt-df lists disk usage of guests without needing to install any > software inside the virtual machine. Supports Linux and Windows. > http://et.redhat.com/~rjones/virt-df/ >

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[libvirt] networking
by James Bardin 20 Aug '08

20 Aug '08

Hello, I'm having trouble digging up some documentation on libvirt's network config. I'm not sure where to set this up, but I have a bridged device br0 that I would like to have available in virt-manager/virsh. Right now, I can edit the VM's xml interface element manually to use br0. Virt-manager has an option for shared physical device, but it's empty, and I can't figure out how to see it from virsh. thanks -jim

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[libvirt] Using Xen config files
by Matthew Donovan 20 Aug '08

20 Aug '08

I am trying to programmatically start Xen guest VMs (HVM) with libvirt (on Fedora Core 8) and I'm having some trouble with it. I've included my code below. Essentially, the domain seems to get created correctly but it doesn't seem to run. I don't receive any error messages from the libvirt functions but the VM does not get any CPU time (as shown with "xm list"). [root@grape ~]$ xm list Name ID Mem VCPUs State Time(s) Domain-0 0 1462 2 r----- 1313.5 fc8.conf 7 128 1 ------ 0.0 Can someone explain what I'm doing wrong here? I've tried to get this working with linux and windows guests with the same results. I've seen references on this mailing list to libvirt's ability to handle Xen configuration files but I haven't seen anything in the API documentation or public header files that refer to it. Is there a public interface to specifying a configuration file? Thanks -matthew CODE: #include <stdio.h> #include <libvirt/libvirt.h> #include <libvirt/virterror.h> //"" //"<graphics type='vnc' port='5904'/>" const char* fedora = "<domain type='xen'>" "<name>fc8.conf</name>" "<os>" "<type>hvm</type>" "<loader>/usr/lib/xen/boot/hvmloader</loader>" "<boot dev='hd'/>" "</os>" "<memory>1024</memory>" "<vcpu>1</vcpu>" "<on_poweroff>destroy</on_poweroff>" "<on_reboot>restart</on_reboot>" "<on_crash>restart</on_crash>" "<features>" "<pae/>" "<acpi/>" "<apic/>" "</features>" "<clock sync=\"localtime\"/>" "<devices>" "<emulator>/usr/lib/xen/bin/qemu-dm</emulator>" "<interface type='bridge'>" "<source bridge='xenbr0'/>" "<script path='vif-bridge'/>" "</interface>" "<disk type='block'>" "<source dev='/dev/vgvms/fc8'/>" "<target dev='hda'/>" "</disk>" "<disk type='block' device='cdrom'>" "<source dev='/dev/cdrom'/>" "<target dev='hdc'/>" "<readonly/>" "</disk>" "<graphics type='vnc'/>" "</devices>" "</domain>"; int main (int argc, char** argv) { virConnectPtr con; /* connection to the Xen hypervisor */ virDomainPtr domain; virInitialize(); con = virConnectOpen ("xen:///"); if (!con) { virErrorPtr err = virGetLastError (); printf ("virConnectOpen failed: %s\n", err->message); return -1; } domain = virDomainDefineXML (con, fedora); if (!domain) { virErrorPtr err = virGetLastError (); printf ("virDomainDefineXML failed: %s\n", err->message); } else { if (virDomainCreate (domain) < 0) { virErrorPtr err = virGetLastError (); printf ("virDomainCreate failed: %s\n", err->message); } else { virDomainInfo info = {0}; virDomainGetInfo (domain, &info); printf ("state = %d\n", info.state); } } virConnectClose (con); return 0; }

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[libvirt] [PATCH] manage number of virtual CPUs
by Evgeniy Sokolov 20 Aug '08

20 Aug '08

OpenVZ containers use all CPUs available in system by default. Limitations may be caused only by Linux kernel limitation. There is way to artificially limit number of CPUs. patch add cpu management functionality to OpenVZ driver.

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[libvirt] [PATCH] Ignore specified target path when creating logical vol
by Cole Robinson 20 Aug '08

20 Aug '08

Specifying a target path when creating a storage volume has no effect, since volumes only really use the pool's target path and 'name' field to establish the volume's target. Logical volumes expect a target path to be passed, and it can only cause problems. The attached patch erases the passed target volume and fills it in with the one generated from the create operation. Thanks, Cole

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[libvirt] [PATCH] Fix size reporting for disk pools without partitions
by Cole Robinson 20 Aug '08

20 Aug '08

The attached patch updates parthelper to print size information for a disk device if it doesn't have any allocated partitions. The current code starts by requesting the first partition, then iterating from there. But if there is no first partition, that whole info reporting thing never happens :) Seems to produce desired results for partitioned and unpartitioned devices. Thanks, Cole

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[libvirt] Question about html file in docs
by Atsushi SAKAI 20 Aug '08

20 Aug '08

Hi, I think html files in docs directory are redundunt. It is because html file is created by html.in. May I remove these files? Or are there any reason about staying these files? Thanks Atsushi SAKAI

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[libvirt] qemud/.libs/libvirtd?
by Jun Koi 20 Aug '08

20 Aug '08

Hi, I added some new code to libvirt.c, and recompile. However, when "make install". qemud/.libs/libvirtd is installed but not qemud/libvirtd. Why? Looks like a bug? The problem is that qemud/libvirtd has my new code, but not qemud/.libs/libvirtd! So "make install" installs the old binary, which I dont know where it is from. (Perhaps from the first compilation?) I am not familiar with the autoconf Makefile, and cannot figure it out why it is working this way. Many thanks, Jun

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[libvirt] On shutdown Destroy/Delete
by Stefan de Konink 20 Aug '08

20 Aug '08

Hi, I would really like to know how I can make a defined domain *gone* after shutdown :) (instead of it still be defined, after shutdown) Stefan

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