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[libvirt-users] virDomainGetCPUStats missing in Java API bindings ?
by Atul Gosain 15 Oct '13

15 Oct '13

Hi All I am trying to get the performance statistics for KVM using Java bindings. I found some api's for getting memory stats but not able to find any for cpu stats. I found virDomainGetCPUStats which look like its going to return cpu stats for a VM at http://libvirt.org/html/libvirt-libvirt.html and http://libvirt.org/hvsupport.html . I couldnt find these methods getting called from java source too. Which libvirt version does Java API correspond to ? I m using Java API 0.5.1 . If i want to get the virDomainGetCPUStats which is available from 0.9.x versions of libvirt, whats the way to get it in Java API bindings. Thanks Atul

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[libvirt-users] Xen - 4.2.1 with libvirt-1.1.3
by cooldharma06 14 Oct '13

14 Oct '13

hi, i cleared all the stuffs(everything) related to xen and libvirt. i installed freshly xen-4.2.1 from the source. *Installation steps are as follows:* apt-get build-dep xen apt-get install libc6-dev libglib2.0-dev libyajl-dev yajl-tools libbz2-dev bison flex zlib1g-dev git-core texinfo debhelper debconf-utils debootstrap fakeroot *OR* apt-get install bcc bin86 gawk bridge-utils iproute libcurl3 libcurl4-openssl-dev bzip2 module-init-tools transfig tgif tgif texinfo texlive-latex-base gcc-multilib texlive-fonts-extra texlive-fonts-recommended pciutils-dev mercurial libncurses5-dev patch libvncserver-dev libsdl-dev libjpeg62-dev iasl libbz2-dev git-core uuid-dev python python-dev python-twisted build-essential make gcc libc6-dev zlib1g-dev texlive-latex-recommended e2fslibs-dev *Download and build the source* wget http://bits.xensource.com/oss-xen/release/4.2.1/xen-4.2.1.tar.gz tar zxvf xen-4.2.1.tar.gz cd xen-4.2.1 - vi Config.mk edit the XSM_ENABLE = n --------> XSM_ENABLE= y - ./configure –enable-githttp --libdir=/usr/lib64 ( if it is 64 bit machine ) - vi ./.config # write this line -------- > PYTHON_PREFIX_ARG=--install-layout=deb # - make world - make deb - cd ./dist - ./install.sh - # Important - update-grub - ls -al /boot/xen* - update-rc.d xencommons defaults 19 18 - update-rc.d xendomains defaults 21 20 - update-rc.d xen-watchdog defaults 22 23 - update-grub *Configuration* *ln -s /etc/init.d/xendomains /etc/rc0.d/S10xendomains* *ln -s /etc/init.d/xendomains /etc/rc6.d/S10xendomains* *ln -s /etc/init.d/xencommons /etc/rc3.d/S98xencommons* *ln -s /etc/init.d/xendomains /etc/rc3.d/S98xendomains* *ln -s /root/xendom0caps /etc/rc3.d/S98xendom0caps* *ln -s /root/iptables-enable /etc/rc3.d/S99iptables-enable (not required)* *vi /root/xendom0caps (add xl sched-credit -d Domain-0 -w 512)* *chmod +x /root/xendom0caps* *vi /etc/rc.local (add /usr/bin/setterm -powersave off -blank 0* *vi /etc/xen/xend-config.sxp* *comment it --- > #network-script network-bridge* *vi /etc/network/interfaces* *auto xenbr0 * *iface xenbr0 inet dhcp* *bridge_ports eth0 * reboot * then i enter into the xen. *root@boss[/]#xl list* Name ID Mem VCPUs State Time(s) Domain-0 0 3476 8 r----- 614.7 _______________________ then i installed libvirt form the source and the installtion steps are as follows: * ./autogen.sh --system --with-xen=yes --with-libxl=yes * make * make install and then i runned daemon/libvirtd -d then i runned *tools/virsh * *virsh # version* Compiled against library: libvirt 1.1.3 Using library: libvirt 1.1.3 Using API: QEMU 1.1.3 error: failed to get the hypervisor version error: internal error: Cannot find suitable emulator for x86_64 - - - - - - - - - - - - then i started the xend by following command: /etc/init.d/xend start then i checked libvirt(virsh) virsh # version Compiled against library: libvirt 1.1.3 Using library: libvirt 1.1.3 Using API: Xen 1.1.3 Running hypervisor: Xen 4.2.0 ******* i dont know how to enable the xl with libvirt. Anyone guide me.. regards, cooldharma06.

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[libvirt-users] event handler
by Alexandr 14 Oct '13

14 Oct '13

good day to all. i still have not solved my problem with event handling. currently i have following code void libvirt_eventloop_thr_func() { while(true) //TODO: stop somehow on exit { if(virEventRunDefaultImpl() < 0) { virErrorPtr err = virGetLastError(); fprintf(stderr, "Failed to run event loop: %s\n", err && err->message ? err->message : "Unknown error"); } } } ... virSetErrorFunc(NULL, libvirt_error_handler); libvirt_connection = virConnectOpen("qemu:///system"); if (virEventRegisterDefaultImpl() < 0) { virErrorPtr err = virGetLastError(); fprintf(stderr, "Failed to register event implementation: %s\n", err && err->message ? err->message: "Unknown error"); return -1; } { int callback = virConnectDomainEventRegisterAny(libvirt_connection, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE, VIR_DOMAIN_EVENT_CALLBACK(domain_event_handler), NULL, NULL); if(callback == -1) { std::cout<<"Error: failed to register domain event handle callback\n"; return -1; } } boost::thread(boost::bind(&libvirt_eventloop_thr_func)); ... libvirt_eventloop_thr_func() called, and locked on virEventRunDefaultImpl(), can it be called in thread, and if no, how should i use it correctly ? sorry for asking again, but i really can't solve it myself. thx in advance.

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[libvirt-users] migrate & virtlockd
by NEVEU Stephane 14 Oct '13

14 Oct '13

Hi all, I'm testing virtlockd with libvirt 1.1.3 and it seems I can't migrate my VMs from the first to my second kvm node (on a NFS storage). Virtlockd is locking my qcow2 : Error : resource busy Lockspace resource 'ea3jkj78.....' is locked As a result my VM is paused. How can I fix this behavior ? Thank you for your help.

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[libvirt-users] Guide to view the libvirt source.
by cooldharma06 14 Oct '13

14 Oct '13

hi all, i am new to this libvirt. Any guide or reference is available to know more things libvirt (individual programs). because it will give me some idea to get about the libvirt and its corresponding programs. If there is available means please guide and share me. i want to give my contribution to this community. Lot of thanks in advance. Regards, cooldharma06.

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[libvirt-users] migration error virsh 0.10
by song 14 Oct '13

14 Oct '13

Hello everyone: I am using CentOS 6.3 and the libvirt version is 0.10,when I'm trying to migration a vm between hosts,issue command:virsh --connect qemu:///system migrate --live one-11 qemu+ssh://192.168.0.111/system,an error reported: Command "virsh --connect qemu:///system migrate --live one-11 qemu+ssh://192.168.0.111/system" failed: error: XML error: invalid security type Any help will be appreciated!

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[libvirt-users] ps/2 mouse cannot be removed from guest
by Hisao Taguchi 13 Oct '13

13 Oct '13

Hi, I installed Solaris 11(x86_64) as a guest in Fedora 19 KVM host and it works well. It seems that Solaris 11 can recognize only USB mouse but cannot recognize PS/2 mouse. When a PS/2 mouse is attached to the solaris 11 guest, something conflict occured and the mouse pointer is not moving on the solaris desktop. So, I tried to remove the PS/2 mouse from the guest, but I cannot remove it using virt manager. The "remove" button is grayed out by virt manager. I have to edit the /etc/libvirt/qemu/xxx.xml file to remove it. Why is it prevented from removing the PS/2 mouse by virt manager? I hope it wil be fixed. -- hisao

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[libvirt-users] Kvm Libvirt dirty page log facility
by hellen maziku 12 Oct '13

12 Oct '13

Greetings! I am new to kvm Libvirt and are writing a python script to get the number of pre-copy cycles during a remote vm migration given memory size M of a VM in MB, the page dirty rate R of a vm in MB/s. My question is on how to get the page dirty rate. Does kvm libvirt provide a dirty page log facility that provides user space with a bitmap of modified pages since the last call? And if yes, please kindly direct me on how to get started. I have searched and come across things like VIR_NODE_MEMORY_STATS and kvm_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log, int *is_dirty), I do not know if these are the ones and if yes how I can use them. Thank you very much

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[libvirt-users] pom for 0.5.1
by Daan Hoogland 11 Oct '13

11 Oct '13

H, I am using libvirt from maven using a nexus proxy pointing to http://www.libvirt.org/maven2/ It downloads the jar fine but is expecting libvirt-0.5.1.pom (and ...sha1). In the proxy only the jar appears. When I download and rename the pom to my local .m2 cache my build works fine. Is this a bug in the distribution of libvirt in its maven repo or is my dependency wrong somehow? Kind regards, Daan Hoogland

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[libvirt-users] failing connections w/ virt-manager
by Stefan G. Weichinger 09 Oct '13

09 Oct '13

Greetings ... I already spent quite some time to debug this ... See the thread on gentoo-user ml for reference: http://permalink.gmane.org/gmane.linux.gentoo.user/270091 basically I get dropped connections when I try to edit a VM via virt-manager. Tested from my gentoo workstation and a fresh ubuntu installation inside a VM at my office. The server is a new and shiny gentoo box with (gentoo release-numbers): libvirt-1.1.2-r3 qemu-1.5.3 openssh-5.9_p1-r4 ... 64bit, lots of RAM and CPUs .. installed last week ... so no obvious cruft on there. plain ssh sessions work fine for me. I access the server over an IPSEC-VPN terminated on my pfsense-router and on the customers side there is a firewall. This firewall allows full access for my private subnet, TCP/UDP ports 1:65535 ... so there should be no restrictions. Another issue: the server runs with systemd-204-r1 ... maybe important. # systemctl status libvirtd libvirtd.service - Virtualization daemon Loaded: loaded (/usr/lib64/systemd/system/libvirtd.service; enabled) Active: active (running) since Do 2013-10-03 17:39:37 CEST; 13h ago Main PID: 1242 (libvirtd) CGroup: name=systemd:/system/libvirtd.service └─1242 /usr/sbin/libvirtd --listen Okt 03 17:39:38 jupiter libvirtd[1242]: [251B blob data] Okt 03 17:39:38 jupiter libvirtd[1242]: [254B blob data] Okt 03 17:39:38 jupiter libvirtd[1242]: [301B blob data] Okt 03 17:39:38 jupiter libvirtd[1242]: firewall tools were not found or cannot be used Okt 03 17:39:41 jupiter libvirtd[1242]: [338B blob data] Okt 03 17:39:41 jupiter libvirtd[1242]: failed to add iptables rule to allow DHCP requests from 'virbr0' Okt 03 17:41:07 jupiter libvirtd[1242]: No response from client 0x7fe8b0c19450 after 5 keepalive messages in 31 seconds Okt 04 06:35:28 jupiter libvirtd[1242]: No response from client 0x7fe8b0c171a0 after 5 keepalive messages in 32 seconds Okt 04 06:40:05 jupiter libvirtd[1242]: No response from client 0x7fe8b0c164e0 after 5 keepalive messages in 31 seconds Okt 04 06:58:36 jupiter libvirtd[1242]: No response from client 0x7fe8b0c17050 after 5 keepalive messages in 31 seconds What to install for the "firewall tools"? Gentoo didn't pull anything related ... Is that relevant? What about these keepalive messages, I assume this is responsible for my failing virt-manager-connections. Thanks for any help on this, I am quite stuck here already ... Stefan

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