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[libvirt-users] virt-manager and the alternatives
by Narahari Lakshminarayana 08 May '16

08 May '16

Friends: I am new to this and don't flame me yet. Here is what I am facing. I installed libvirt stuff and then I run virt-manager to create a vm. When I run the virt-manager I am seeing issue Namespace GtkVnc not available for version 2.0 How do I interact with the console screen so I can hit Enter key and do <ALT + F2> etc., ? Is virt-manager my only choice ? How to use VNC to connect to the virt-manager screen, not the VM's console ? ============= Can I create VM with virsh and then set vnc for that and connect to that with VNC ? -Narahari

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[libvirt-users] CfP 11th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '16) (deadline extended May 20th)
by VHPC 16 07 May '16

07 May '16

CfP 11th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '16) ==================================================================== CALL FOR PAPERS 11th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '16) held in conjunction with the International Supercomputing Conference - High Performance (ISC), June 19-23, 2016, Frankfurt, Germany. ==================================================================== Date: June 23, 2016 Workshop URL: http://vhpc.org Paper Submission Deadline: May 20th (extended) Call for Papers Virtualization technologies constitute a key enabling factor for flexible resource management in modern data centers, and particularly in cloud environments. Cloud providers need to manage complex infrastructures in a seamless fashion to support the highly dynamic and heterogeneous workloads and hosted applications customers deploy. Similarly, HPC environments have been increasingly adopting techniques that enable flexible management of vast computing and networking resources, close to marginal provisioning cost, which is unprecedented in the history of scientific and commercial computing. Various virtualization technologies contribute to the overall picture in different ways: machine virtualization, with its capability to enable consolidation of multiple underutilized servers with heterogeneous software and operating systems (OSes), and its capability to live-migrate a fully operating virtual machine (VM) with a very short downtime, enables novel and dynamic ways to manage physical servers; OS-level virtualization (i.e., containerization), with its capability to isolate multiple user-space environments and to allow for their coexistence within the same OS kernel, promises to provide many of the advantages of machine virtualization with high levels of responsiveness and performance; I/O Virtualization allows physical NICs/HBAs to take traffic from multiple VMs or containers; network virtualization, with its capability to create logical network overlays that are independent of the underlying physical topology and IP addressing, provides the fundamental ground on top of which evolved network services can be realized with an unprecedented level of dynamicity and flexibility; the increasingly adopted paradigm of Software-Defined Networking (SDN) promises to extend this flexibility to the control and data planes of network paths. Topics of Interest The VHPC program committee solicits original, high-quality submissions related to virtualization across the entire software stack with a special focus on the intersection of HPC and the cloud. Topics include, but are not limited to: - Virtualization in supercomputing environments, HPC clusters, cloud HPC and grids - OS-level virtualization including container runtimes (Docker, rkt et al.) - Lightweight compute node operating systems/VMMs - Optimizations of virtual machine monitor platforms, hypervisors - QoS and SLA in hypervisors and network virtualization - Cloud based network and system management for SDN and NFV - Management, deployment and monitoring of virtualized environments - Virtual per job / on-demand clusters and cloud bursting - Performance measurement, modelling and monitoring of virtualized/cloud workloads - Programming models for virtualized environments - Virtualization in data intensive computing and Big Data processing - Cloud reliability, fault-tolerance, high-availability and security - Heterogeneous virtualized environments, virtualized accelerators, GPUs and co-processors - Optimized communication libraries/protocols in the cloud and for HPC in the cloud - Topology management and optimization for distributed virtualized applications - Adaptation of emerging HPC technologies (high performance networks, RDMA, etc..) - I/O and storage virtualization, virtualization aware file systems - Job scheduling/control/policy in virtualized environments - Checkpointing and migration of VM-based large compute jobs - Cloud frameworks and APIs - Energy-efficient / power-aware virtualization The Workshop on Virtualization in High-Performance Cloud Computing (VHPC) aims to bring together researchers and industrial practitioners facing the challenges posed by virtualization in order to foster discussion, collaboration, mutual exchange of knowledge and experience, enabling research to ultimately provide novel solutions for virtualized computing systems of tomorrow. The workshop will be one day in length, composed of 20 min paper presentations, each followed by 10 min discussion sections, plus lightning talks that are limited to 5 minutes. Presentations may be accompanied by interactive demonstrations. Important Dates May 20, 2016 - Paper submission deadline May 30, 2016 Acceptance notification June 23, 2016 - Workshop Day July 25, 2016 - Camera-ready version due Chair Michael Alexander (chair), TU Wien, Austria Anastassios Nanos (co-chair), NTUA, Greece Balazs Gerofi (co-chair), RIKEN Advanced Institute for Computational Science, Japan Program committee Stergios Anastasiadis, University of Ioannina, Greece Costas Bekas, IBM Research, Switzerland Jakob Blomer, CERN Ron Brightwell, Sandia National Laboratories, USA Roberto Canonico, University of Napoli Federico II, Italy Julian Chesterfield, OnApp, UK Stephen Crago, USC ISI, USA Christoffer Dall, Columbia University, USA Patrick Dreher, MIT, USA Robert Futrick, Cycle Computing, USA Robert Gardner, University of Chicago, USA William Gardner, University of Guelph, Canada Wolfgang Gentzsch, UberCloud, USA Kyle Hale, Northwestern University, USA Marcus Hardt, Karlsruhe Institute of Technology, Germany Krishna Kant, Templte University, USA Romeo Kinzler, IBM, Switzerland Brian Kocoloski, University of Pittsburgh, USA Kornilios Kourtis, IBM Research, Switzerland Nectarios Koziris, National Technical University of Athens, Greece John Lange, University of Pittsburgh, USA Nikos Parlavantzas, IRISA, France Kevin Pendretti, Sandia National Laboratories, USA Che-Rung Roger Lee, National Tsing Hua University, Taiwan Giuseppe Lettieri, University of Pisa, Italy Qing Liu, Oak Ridge National Laboratory, USA Paul Mundt, Adaptant, Germany Amer Qouneh, University of Florida, USA Carlos Reaño, Technical University of Valencia, Spain Seetharami Seelam, IBM Research, USA Josh Simons, VMWare, USA Borja Sotomayor, University of Chicago, USA Dieter Suess, TU Wien, Austria Craig Stewart, Indiana University, USA Anata Tiwari, San Diego Supercomputer Center, USA Kurt Tutschku, Blekinge Institute of Technology, Sweden Amit Vadudevan, Carnegie Mellon University, USA Yasuhiro Watashiba, Osaka University, Japan Nicholas Wright, Lawrence Berkeley National Laboratory, USA Chao-Tung Yang, Tunghai University, Taiwan Gianluigi Zanetti, CRS4, Italy Paper Submission-Publication Papers submitted to the workshop will be reviewed by at least two members of the program committee and external reviewers. Submissions should include abstract, key words, the e-mail address of the corresponding author, and must not exceed 10 pages, including tables and figures at a main font size no smaller than 11 point. Submission of a paper should be regarded as a commitment that, should the paper be accepted, at least one of the authors will register and attend the conference to present the work. The format must be according to the Springer LNCS Style. Initial submissions are in PDF; authors of accepted papers will be requested to provide source files. Format Guidelines: ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip Abstract, Paper Submission Link: https://edas.info/newPaper.php?c=21801 Lightning Talks Lightning Talks are non-paper track, synoptical in nature and are strictly limited to 5 minutes. They can be used to gain early feedback on ongoing research, for demonstrations, to present research results, early research ideas, perspectives and positions of interest to the community. Submit abstract via the main submission link. General Information The workshop is one day in length and will be held in conjunction with the International Supercomputing Conference - High Performance (ISC) 2016, June 19-23, Frankfurt, Germany.

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[libvirt-users] [libvirt] Creating a storage volume for raw format file
by Paul Carlton 04 May '16

04 May '16

Hi I'm trying to create a volume in an existing storage pool using python by calling createXML() on the pool object. If the file that is the subject of the new volume exists you get and error, also if it doesn't exist I worked out that specifying <source> <path>path to copy of file</path> </source> works, seemingly by copying the 'source' file to the intended location of the volume file However I am concerned about the overhead of copying the file, is there a way to tell it to move the file (i.e. rename) Thanks -- Paul Carlton Software Engineer Cloud Services Hewlett Packard BUK03:T242 Longdown Avenue Stoke Gifford Bristol BS34 8QZ Mobile: +44 (0)7768 994283 Email: mailto:paul.carlton2@hpe.com Hewlett-Packard Limited registered Office: Cain Road, Bracknell, Berks RG12 1HN Registered No: 690597 England. The contents of this message and any attachments to it are confidential and may be legally privileged. If you have received this message in error, you should delete it from your system immediately and advise the sender. To any recipient of this message within HP, unless otherwise stated you should consider this message and attachments as "HP CONFIDENTIAL".

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[libvirt-users] [Ceph] blockInfo cannot work with network type disk
by ZhiQiang Fan 04 May '16

04 May '16

Hi devs & users, The Telemetry service of OpenStack, project code name Ceilometer, is using libvirt.domain.blockInfo() to get disk's physical, allocation and capacity information [1]. However, when disk is network type with protocol ceph, the blockInfo() always fail with: libvirtError: internal error: missing storage backend for network files using rbd protocol. [2] After reading some libvirt code, I think it might due to blockInfo() always assume disk is file backend [3], and file backend doesn't support network type [4]. I want to know if such limitation is by design? - If yes, then how should I get the network type disk's physical, allocation and capacity info? - If not, is there any plan to implement it? Thanks! [1] https://github.com/openstack/ceilometer/blob/stable/mitaka/ceilometer/compu… [2] https://bugs.launchpad.net/ceilometer/+bug/1457440 [3] https://github.com/libvirt/libvirt/blob/d6c25c34ef682a69f73f6ec200129e61b29… [4] https://github.com/libvirt/libvirt/blob/d6c25c34ef682a69f73f6ec200129e61b29…

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[libvirt-users] Ubuntu 14.04 virsh 1.2.2 blockcommit hangs at 100% / command 'blockcommit' doesn't support option --pivot
by Liam Curtis 04 May '16

04 May '16

Hello All, I think I have seen this in previous bugs. Trying to live backup qcow2 images. I am able to virsh snapshot-create-as and virsh domblklist shows correct new source, but I am unable to commit back changes to qcow base. I get the above error. Libvirt at 1.2.2-0ubuntu13.1.17 Qemu is (2.0.0+dfsg-2ubuntu1.22) I tried compiling latest libvirt, but cannot get it to connect to socket on installed binaries Anyone get this working on Ubuntu 14.04?

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[libvirt-users] Making remote access to qemu://session easier?
by Lars Kellogg-Stedman 03 May '16

03 May '16

This is frustrating: $ export LIBVIRT_DEFAULT_URI=qemu+ssh://remotehost/session $ virsh list error: failed to connect to the hypervisor error: no valid connection error: Operation not supported: Connecting to session instance without socket path is not supported by the ssh connection driver Has there been any thought given to making this easier? It seems that having a simple helper script on the remote host that could make the same "use $XDG_RUNTIME_DIR or use $HOME/.confg" decision as libvirtd would be able determine the socket path automatically. Would that be a reasonable solution? I see that right now, even support for qemu://remotehost/system requires that "virsh" knows that path to the remote socket, so having a remote helper that can read the libvirt configuration might simplify things in general. That is, I am envisioning that for .../session connections, virsh would do something like: ssh remotehost libvirt-socket-helper --user And for .../system connections, virsh would do something like: ssh remotehost libvirt-socket-helper --system Rather than: ssh remotehost sh -c 'if nc -q 2>&1 | grep \"requires an argument\" >/dev/null 2>&1; then ARG=-q0;else ARG=;fi;nc $ARG -U /var/run/libvirt/libvirt-sock' And in either of the above cases, "libvirt-socket-helper" would parse the environment and the libvirtd configuration as necessary and ultimately act like "nc -U /path/to/some/socket". -- Lars Kellogg-Stedman <lars(a)redhat.com> | larsks @ {freenode,twitter,github} Cloud Engineering / OpenStack | http://blog.oddbit.com/

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[libvirt-users] I have ping through bridge , net has been started , But IPs they're not equivalent.
by Mohsen Pahlevanzadeh 29 Apr '16

29 Apr '16

Dear All, I have the following configuration and I have ping from bridge : ///////////////////////////////////////////////////// iface eth0 inet static address 192.168.1.4 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.1 auto ivbr0 iface ivbr0 inet static address 192.168.1.4 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.1 bridge_ports eth0 bridge_stp on bridge_maxwait 0 bridge_fd 0 ///////////////////////////////////////////// # brctl show bridge name bridge id STP enabled interfaces ivbr0 8000.18037360b44e yes eth0 ///////////////////////////////////////////// my network xml file : <network> <name>myintranet</name> <uuid>465ce6cb-0a69-4f89-92ba-629349741e73</uuid> <forward mode='nat'> <interface dev="eth0" /> </forward> <bridge name='ivbr0' stp='on' delay='0' /> <mac address='52:54:00:0f:f4:f0'/> <ip address='192.168.1.4' netmask='255.255.255.0'> <dhcp> <range start='192.168.1.3' end='192.168.122.254'/> </dhcp> </ip> </network> //////////////////////////////////////////// Now , I have ping of my modem and internet. Then I did the following command : # ip l set dev ivbr0 down # brctl delbr ivbr0 # virsh net-start myintranet Network myintranet started According to above , myintranet network has been started. But with the following IP address : # ip a show dev ivbr0 17: ivbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default link/ether 52:54:00:0f:f4:f0 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global ivbr0 valid_lft forever preferred_lft forever //////// 192.168.122.1 ? Question is , Where I change this address?(I set in myxml file.) --best regards Mohsen

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[libvirt-users] virsh and disable interface
by Mohsen Pahlevanzadeh 29 Apr '16

29 Apr '16

Dear All, According to http://wiki.libvirt.org/page/Networking#Debian.2FUbuntu_Bridging May be I have to do "ifdown eth0" How can I define, edit or other task live? ---mohsen

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[libvirt-users] vhost-user libvirt 1.2.18 issue
by chintu hetam 29 Apr '16

29 Apr '16

Hello there, i am trying to start my VM with 2 virtio interfaces as a vhost-user interface Following is my relevant xml network configuration " <interface type='vhostuser'> <mac address='52:54:00:c7:ac:38'/> <source type='unix' path='/tmp/vhost1.sock' mode='server'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/> </interface> <interface type='vhostuser'> <mac address='52:54:00:9d:ea:73'/> <source type='unix' path='/tmp/vhost2.sock' mode='server'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/> </interface>" when i execute virsh start domain_name command it starts and gets paused log shows it's stuck at n-pci,id=balloon0,bus=pci.0,addr=0x7 -msg timestamp=on QEMU waiting for connection on: disconnected:unix:/tmp/vhost1.sock,server is there anything i am missing? thank you in advance. -hardik-

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[libvirt-users] Use virt-* tools from within container?
by Ken D'Ambrosio 28 Apr '16

28 Apr '16

Hi, all. I've set up an LXC container for various Openstack admin chores, and now I'm being asked to have it used for importing qcow2 images -- on which we want to run utilities like virt-sparsify and virt-sysprep, first. Sadly, when I do that, it dies horribly, e.g., root@openstack-cli:/tmp# virt-sysprep -a cloud-image.qcow2 Examining the guest ... libguestfs: warning: supermin-helper -f checksum returned a short string Fatal error: exception Guestfs.Error("cannot find any suitable libguestfs supermin, fixed or old-style appliance on LIBGUESTFS_PATH (search path: /usr/lib/guestfs)") Is there a way around this? Or is the answer, "Don't do that in a container"? Thanks! -Ken P.S. /usr/lib/guestfs -- the only part of the error I can easily look into -- has more stuff in it than the system that does process virt-* commands properly. Here's what's there: excludelist make.sh packagelist supermin.d

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