February 2016 - Users - libvirt List Archives

[libvirt-users] Fwd: Virtualization in High-Performance Cloud Computing (VHPC '16)
by VHPC 16 07 Feb '16

07 Feb '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, June 19-23, 2016, Frankfurt, Germany. ==================================================================== Date: June 23, 2016 Workshop URL: http://vhpc.org Lightning talk abstract registration deadline: February 29, 2016 Paper/publishing track abstract registration deadline: March 21, 2016 Paper Submission Deadline: April 25, 2016 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 February 29, 2016 - Lightning talk abstract registration March 21, 2016 - Paper/publishing track abstract registration April 25, 2016 - Full paper submission 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] inquiry .. help!
by Mezo Hindawi 06 Feb '16

06 Feb '16

hello. I am new to libvirt. I have installed xen hypervisor on my ubuntu 14.04 LTS version machine..1- I am trying to use php-libvirt-control from php script(apache server)2- i have downloaded and compiled libvirt. and i can see it in my php configuration file(phpinfo). 3- i have downloaded and compiled libvirt-php4- i have downloaded and compiled php-libvirt-control. 5- when i simple copy the php-libvirt-control directory to /var/www. it doesn't work. i used localhost/index.php which should take me to the index page just like any other website.. is there something i am missing ?

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[libvirt-users] virDomainMemoryStats available tags
by Jean-Pierre Ribeauville 05 Feb '16

05 Feb '16

Hi, By using libvirt-1.2.8-16.el7_1.3.x86_64 , it looks like there are 3 virDomainMemoryStats tags available : VIR_DOMAIN_MEMORY_STAT_SWAP_IN VIR_DOMAIN_MEMORY_STAT_ACTUAL_BALLOON VIR_DOMAIN_MEMORY_STAT_RSS Is there a plan to add the other ones ? Meanwhile , do you know which metrics ovirt uses to display memory column value in the manager GUI ? Thx. 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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Re: [libvirt-users] [netcf-devel] Re: Error when creating bridge with virt-manager
by Laine Stump 04 Feb '16

04 Feb '16

On 02/04/2016 02:47 PM, Niccolò Belli wrote: > Thanks, selecting "Specify shared device name" worked flawlessly! > One more question: often I work with virtual machines with public ip > addresses and routed networking (not bridges!), how can I achieve it > with Arch and virt-manager? If you want to create a completely separate subnet contained within the host, and have all traffic to/from the outside routed via the host's IP stack, define a libvirt network, setup the IP subnet you want for the network, then in the final screen select "Forwarding to physical network", Destination: "Any physical device", Mode: "Routed". Once you've started this network, it will appear in the list of possible connections for a guest's network interfaces. Note that you will need to teach the rest of the network to forward packets for this new subnet to the host's physical ethernet IP (but if you're specifically asking for a routed network, then you likely already know this (either that or I've misunderstood your question) :-) You can see more info about the possible types of networks here: http://www.libvirt.org/formatnetwork.html I've set Reply-To: in this message to libvirt-users(a)redhat.com. It really is a more appropriate place for these questions, as the netcf mailing list deals specifically with the netcf library, which isn't involved in any of the things we're discussing here.

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[libvirt-users] libvirt.so is not safe to use from setuid programs
by Jean-Pierre Ribeauville 04 Feb '16

04 Feb '16

Hi, When trying to connect the HyperVisor from a binary having setuid bit set , then I got following error: Unable to perform virConnectOpenReadOnly function error(internal error: libvirt.so is not safe to use from setuid programs) My test software config is the following : -rwsr-xr-x. 1 root root 3374956 Feb 4 13:45 test As this test software needs S bit to be able to access O.S. metrics counters , how may I use it to retrieve KVM metrics counters ? 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] Both virsh console logging and pty usage
by Carlos Godoy 03 Feb '16

03 Feb '16

Hi, I am trying to set my VMs for redirecting their consoles to a file but its important to keep the virsh console access to solve any problem I can find while they are running. I tried several settings through libvirt (serial and console tags) but I can not get the key. Any suggestion? Any help? Many thanks in advance. Carlos G.

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[libvirt-users] virsh, virt-filesystems, guestmount, virt-install not working well with ceph rbd yet?
by Jelle de Jong 02 Feb '16

02 Feb '16

Hello everybody, This is a cross post to libvirt-users, libguestfs and ceph-users. I came back from FOSDEM 2016 and this was my 7th year or so and seen the awesome development around visualization going on and want to thank everybody for there contributions. I seen presentations from oVirt, OpenStack and quite a few great Redhat people, just like the last previous years. I personally been supporting Linux-HA (pacemaker) DRBD/iSCSI/KVM platform for years now and last year I started supporting Ceph RBD clusters with KVM hosts. But I keep hitting some “pains” and I been wondering why they have not been solved and how I can best request help around this? Tools that don't seem to fully work with Ceph RBD yet: - virsh snapshot-create --quiesce --disk-only $quest - virt-filesystems ${array_volume[@]} - guestmount --ro ${array_volume[@]} -m $mount /mnt/$name-$disk - virt-install also doesn't have Ceph RBD and I currently use virsh edit to add the RBD storage disks. My request is to get these tools working as well with Ceph RBD and maybe not only integrate oVirt or OpenStack alike systems. I use several types of back-up strategies depending on the size on the data storage use. I am not sure how oVirt and alike create secure encrypted incremental off-site back-ups of large data sets but I use(d) combinations of rdiff-backup, duplicity and full guest dumps with dd, rbd export, xz. Are these issues known and important enough, roadmap, bug reports? Should I start working for Redhat as I don't have the resources myself, but I can help with some money towards a crowed fund or bounty. Maybe my software is outdated? virsh 1.2.9 ceph version 0.80.10 libguestfs-tools 1:1.28.1-1 3.16.7-ckt20-1+deb8u2 My current workarounds for full storage exports: virsh domfsfreeze $quest sleep 2 virsh domblklist $quest rbd snap create --snap snapshot $blkdevice virsh domfsthaw $quest rbd export $blkdevice@snapshot - | xz -1 | ssh -p 222 $user@$server "dd of=/$location/$blkdevice$snapshot-$daystamp.dd.disk.gz" rbd snap rm $blkdevice@snapshot Kind regards, Jelle de Jong irc: #tuxcrafter

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[libvirt-users] Advice on virtio, or any virtualization solution for hdparm
by Peter Teoh 01 Feb '16

01 Feb '16

At the present moment, my guest is running inside qemu and host is kvm intel, running Ubuntu 14.04, kernel is 4.3.0 stable. From within the guest, when I run "hdparm -i /dev/sdb" on the guest, I get: HDIO_GET_IDENTITY failed: Invalid argument as the error,but on the host, I will get the full harddisk/SSD info. Can I know how to resolve this so that the output is the same for both host and guest? My strace of hdparm from within the guest (just "-e ioctl" is traced): ioctl(3, HDIO_GET_MULTCOUNT, 0x618ef0) = -1 EINVAL (Invalid argument) ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 40, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=15000, flags=0, data[512]=["@\0\377?7\310\20\0\0\0\0\0?\0\0\0\0\0\0\0HPAD0409105B"...], status=00, masked_status=00, sb[0]=[], host_status=0, driver_status=0, resid=0, duration=184, info=0}) = 0 ioctl(3, HDIO_GET_IDENTITY, 0x7fffda088500) = -1 EINVAL (Invalid argument) HDIO_GET_IDENTITY failed: Invalid argument +++ exited with 22 +++ And at the host level: ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x7ffd4b096d90) = -1 ENOTTY (Inappropriate ioctl for device) ioctl(3, HDIO_GET_MULTCOUNT, 0x618ef0) = -1 ENOTTY (Inappropriate ioctl for device) ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 40, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=15000, flags=0, data[512]=["@\0\377?7\310\20\0\0\0\0\0?\0\0\0\0\0\0\0HPAD0409105B"...], status=00, masked_status=00, sb[0]=[], host_status=0, driver_status=0, resid=0, duration=184, info=0}) = 0 ioctl(3, HDIO_GET_IDENTITY, 0x7ffd4b0976e0) = 0 +++ exited with 0 +++ And my qemu command line: sudo ./x86_64-softmmu/qemu-system-x86_64 -m 1024 -boot c -enable-kvm -net nic -net user \ -device virtio-scsi-pci \ -drive if=none,file=/dev/sdb,id=sdb,cache=none,format=raw \ -device scsi-block,drive=sdb \ -hda /home/user/ubuntu1404_x86_64/ubuntu1404_x86_64.img where qemu-system_x86_64 is freshly compiled from latest qemu-devel git tree. I would the SSD (internal SATA) at /dev/sdb to be pass directly into qemu. Please kindly recommend the best solution: distro (CentOS??), kernel version, qemu command like, and setup procedure for libvirtd? or virtio-scsi?

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[libvirt-users] generate interface MAC addresses in a particular order
by Andrei Perietanu 01 Feb '16

01 Feb '16

Hi all, I am using libvirt to manage VM on my system; after creating a VM (default no NICs are present in the configuration) you can add any number of interfaces to it (as long as they exist on the host). To do that, I edit the configuration xlm: vmXml = self.domain.XMLDesc() root = ET.fromstring(vmXml) devices = root.find('./devices') intf = ET.SubElement(devices,'interface') intf.set('type', 'bridge') src = ET.SubElement(intf,'source') src.set('bridge', bIntf) model = ET.SubElement(intf,'model') model.set('type', 'e1000') xml = ET.tostring(root) self.conn.defineXML(xml) Now the problem I have is that the MAC addresses are auto-generated and because of this there is no way to predict which interface number the newly added interface will map to, on the VM. Ideally, the first added interface is mapped to eth0/0, the second one eth0/1...etc. Since the mappings depend on the MAC addresses I figured that is the part I need to have control over. 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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