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Unable to activate Storage Pool
by Phil D 29 Jan '17

29 Jan '17

Hello, My ovirt node has crashed and am unable to reach the engine manager. I have the NFS mounts working okay and am able to execute getStorageDomainInfo against them and retrieve the pool id. The major issue I am having is that to be able to use connectStoragePool I seem to need the Master UUID as am getting: vdsClient -s localhost connectStoragePool 9b40933b-8198-4b3d-bfc2-6d1e49a97d70 0 0 Cannot find master domain: 'spUUID=9b40933b-8198-4b3d-bfc2-6d1e49a97d70, msdUUID=00000000-0000-0000-0000-000000000000' How can I find the correct msdUUID to use ? Thanks, Phil

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Actual downtime during migration?
by Gianluca Cecchi 28 Jan '17

28 Jan '17

Hello, I was testing put host into maintenance on 4.0.6, with 1 VM running. It correctly completes the live migration of the VM and I see this event in pane: Migration completed (VM: ol65, Source: ovmsrv06, Destination: ovmsrv05, Duration: 39 seconds, Total: 39 seconds, Actual downtime: 133ms) What is considered as "Actual downtime"? Thanks, Gianluca

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[ANN] oVirt 4.1.0 First Release Candidate is now available
by Sandro Bonazzola 28 Jan '17

28 Jan '17

The oVirt Project is pleased to announce the availability of the First Release candidate of oVirt 4.1.0 for testing, as of January 23rd, 2016 This is pre-release software. Please take a look at our community page[1] to know how to ask questions and interact with developers and users. All issues or bugs should be reported via oVirt Bugzilla[2]. This pre-release should not to be used in production. This update is the first release candidate of the 4.1 release series. 4.1.0 brings more than 250 enhancements and more than 700 bugfixes, including more than 300 high or urgent severity fixes, on top of oVirt 4.0 series See the release notes [3] for installation / upgrade instructions and a list of new features and bugs fixed. This release is available now for: * Fedora 24 (tech preview) * Red Hat Enterprise Linux 7.3 or later * CentOS Linux (or similar) 7.3 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.3 or later * CentOS Linux (or similar) 7.3 or later * Fedora 24 (tech preview) * oVirt Node 4.1 See the release notes draft [3] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Live iso is already available[5] - oVirt Node NG iso is already available[5] - Hosted Engine appliance is already available A release management page including planned schedule is also available[4] Additional Resources: * Read more about the oVirt 4.1.0 release highlights: http://www.ovirt.org/release/4.1.0/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] https://www.ovirt.org/community/ [2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt [3] http://www.ovirt.org/release/4.1.0/ [4] http://www.ovirt.org/develop/release-management/releases/4.1/release-manage… [5] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/ -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Dealing with time drifts due to migrated/paused VMs
by Christian Affolter 28 Jan '17

28 Jan '17

Hi everyone, recently, I observed some time drifts within a couple of virtual CentOS 7 VMs running on oVirt 3.6. All the VMs have NTP and the qemu guest agent running and use the kvm-clock as their clock source. The drifts vary over the VMs, a few of them were drifting even so high, that NTP would panic and terminate itself. After some log analyzing, I found out, that some of the VMs experienced some I/O issues lately and were paused automatically (and resumed later on), others were migrated a couple of time. The root cause seems to be the pause/resume cycle which the guest doesn't notice and hence must rely solely on NTP to correct the time. Which, of course is the purpose of NTP but can take relatively long, even if it detects a spike and performs a clock_step. vdsm provides the _syncGuestTime() method [1], which should help in this case and set the time using the qemu guest agent. However, it seems that this method only gets called during a restore [2] and not after a migration [3]. Some peeking at the master branch, reveals that the idea of setting the time after resuming a VM won't be implemented anymore [4]. Although, the first argument within the above referenced comment might be valid for some systems, most of it probably still prefer to get the time corrected as quickly as possible - but of course this depends on the use case and should ideally be configurable by the user. I couldn't find a reference or comment about the situation during the continuation of a VM [5]. As some simple vdsClient pause/continue cycles have shown, the clock won't be set on continuation and it took NTP around 20 minutes before it performed a hard clock_step. This finally leads me to my questions: Is there a simple way to let ovirt/vdsm/libvirt set the time after a migration or the continuation of paused VM? How are others dealing with this situation? Many thanks, Chris [1] https://github.com/oVirt/vdsm/blob/ovirt-3.6.3/vdsm/virt/vm.py#L1199-L1208 [2] https://github.com/oVirt/vdsm/blob/ovirt-3.6.3/vdsm/virt/vm.py#L2838 [3] https://github.com/oVirt/vdsm/blob/ovirt-3.6.3/vdsm/virt/vm.py#L2862-L2866 [4] https://github.com/oVirt/vdsm/blob/master/vdsm/virt/vm.py#L3106-L3116 [5] https://github.com/oVirt/vdsm/blob/master/vdsm/virt/vm.py#L1011

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new qemu-kvm-ev available
by Gianluca Cecchi 28 Jan '17

28 Jan '17

This morning I noticed the message about updates availalble for my CentOS 7.3 host. A yum update on it proposed qemu-kvm-ev 2.6.0-28.el7_3.3.1 and related packages The changelog from the current one (2.6.0-27.1.el7) seems quit big (see below)... I applied it and I'm going to test. After working on the first host and activatinh inside the cluster, do you think I can live migrate a VM from a 2.6.0-27.1.el7 host to a 2.6.0-28.el7_3.3.1 in your opinion? Gianluca * Fri Jan 20 2017 Sandro Bonazzola <sbonazzo(a)redhat.com> - ev-2.6.0-28.el7_3.3.1 - Removing RH branding from package name * Wed Jan 04 2017 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.6.0-28.el7_3.3 - kvm-pc_piix-fix-compat-props-typo-for-RHEL6-machine-type.patch [bz#1408122] - kvm-net-don-t-poke-at-chardev-internal-QemuOpts.patch [bz#1410200] - Resolves: bz#1408122 (Opteron_G4 CPU model broken in QEMU 2.6 with RHEL 6 machine type) - Resolves: bz#1410200 (qemu gets SIGSEGV when hot-plug a vhostuser network) * Fri Dec 09 2016 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.6.0-28.el7_3.2 - kvm-numa-do-not-leak-NumaOptions.patch [bz#1397745] - kvm-char-free-the-tcp-connection-data-when-closing.patch [bz#1397745] - kvm-char-free-MuxDriver-when-closing.patch [bz#1397745] - kvm-ahci-free-irqs-array.patch [bz#1397745] - kvm-virtio-input-free-config-list.patch [bz#1397745] - kvm-usb-free-USBDevice.strings.patch [bz#1397745] - kvm-usb-free-leaking-path.patch [bz#1397745] - kvm-ahci-fix-sglist-leak-on-retry.patch [bz#1397745] - kvm-virtio-add-virtqueue_rewind.patch [bz#1402509] - kvm-virtio-balloon-fix-stats-vq-migration.patch [bz#1402509] - kvm-virtio-blk-Release-s-rq-queue-at-system_reset.patch [bz#1393041] - kvm-virtio-blk-Remove-stale-comment-about-draining.patch [bz#1393041] - Resolves: bz#1393041 (system_reset should clear pending request for error (virtio-blk)) - Resolves: bz#1397745 (Backport memory leak fixes from QEMU 2.7) - Resolves: bz#1402509 (virtio-balloon stats virtqueue does not migrate properly) * Wed Nov 30 2016 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.6.0-28.el7_3.1 - kvm-ide-fix-halted-IO-segfault-at-reset.patch [bz#1393043] - kvm-atapi-fix-halted-DMA-reset.patch [bz#1393043] - kvm-ahci-clear-aiocb-in-ncq_cb.patch [bz#1393736] - kvm-Workaround-rhel6-ctrl_guest_offloads-machine-type-mi.patch [bz#1392876] - kvm-Postcopy-vs-xbzrle-Don-t-send-xbzrle-pages-once-in-p.patch [bz#1395360] - kvm-ui-fix-refresh-of-VNC-server-surface.patch [bz#1392881] - Resolves: bz#1392876 (windows guests migration from rhel6.8-z to rhel7.3 with virtio-net-pci fail) - Resolves: bz#1392881 (Graphic can't be showed out quickly if guest graphic mode is vnc) - Resolves: bz#1393043 (system_reset should clear pending request for error (IDE)) - Resolves: bz#1393736 (qemu core dump when there is an I/O error on AHCI) - Resolves: bz#1395360 (Post-copy migration fails with XBZRLE compression) * Tue Sep 27 2016 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.6.0-28.el7 - kvm-ARM-ACPI-fix-the-AML-ID-format-for-CPU-devices.patch [bz#1373733] - Resolves: bz#1373733 (failed to run a guest VM with >= 12 vcpu under ACPI mode)

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Ovirt FQDN
by rightkicktech.gmail.com 28 Jan '17

28 Jan '17

------PXLRQ3P0G6SY9KXSTS097IKHZKWG31 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Hi all, Is there any way to bypass the FQDN access requirement on ovirt 4? On previous versions I was able to access ovirt engine using IP. It is impractical to access with FQDN when doing remote port forwarding. Thanx, Alex -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ------PXLRQ3P0G6SY9KXSTS097IKHZKWG31 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit Hi all, Is there any way to bypass the FQDN access requirement on ovirt 4? On previous versions I was able to access ovirt engine using IP. It is impractical to access with FQDN when doing remote port forwarding. Thanx, Alex -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ------PXLRQ3P0G6SY9KXSTS097IKHZKWG31--

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Ovirt dashboard values
by rightkicktech.gmail.com 28 Jan '17

28 Jan '17

------ENLJO7GAMXWYZM97AQNB5AQA5DYU0F Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Hi all, I'm trying to understand what is the meaning of the overcommit and usage percentage values shown in dashboard. For examlle, for the cpu, documentation simply states that indicates the ratio of virtual/physical cores available to "running" VMs. I have the following cpu values: 86% available of 100% Overcommit: 38% (allocated 63%). Bug 1402007 mentions that overcommit (although misleading term) indicates the physical resources allocated to running VMs. While "allocated" is the total physical resource allocated to provisioned VMs, running or not. Still why 86% available? What is the math behind it? Thanx, Alex -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ------ENLJO7GAMXWYZM97AQNB5AQA5DYU0F Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit Hi all, I'm trying to understand what is the meaning of the overcommit and usage percentage values shown in dashboard. For examlle, for the cpu, documentation simply states that indicates the ratio of virtual/physical cores available to "running" VMs. I have the following cpu values: 86% available of 100% Overcommit: 38% (allocated 63%). Bug 1402007 mentions that overcommit (although misleading term) indicates the physical resources allocated to running VMs. While "allocated" is the total physical resource allocated to provisioned VMs, running or not. Still why 86% available? What is the math behind it? Thanx, Alex -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ------ENLJO7GAMXWYZM97AQNB5AQA5DYU0F--

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Adding Host Issue
by Fernando Fuentes 27 Jan '17

27 Jan '17

I am adding a host to my cluster and is failing with: Jan 25, 2017 10:18:02 AM Failed to connect Host gigantes to Storage Pool HyperVirtDC Jan 25, 2017 10:18:01 AM Host gigantes cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center HyperVirtDC. Setting Host state to Non-Operational. Jan 25, 2017 10:18:01 AM VDSM gigantes command failed: Cannot find master domain: u'spUUID=e13d5091-a60e-433e-86ed-bd36deb7ca50, msdUUID=0e4ca0da-1721-4ea7-92af-25233a8679e0' Not sure why this is happening. Any ideas? Regards, -- Fernando Fuentes ffuentes(a)txweather.org http://www.txweather.org

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ovirt-engine-rename after restore
by Sergei Genchev 27 Jan '17

27 Jan '17

Hi, I am trying to upgrade ovirt from 3.6 to 4.0. I have backed up configuration on current CenTOS6 oVirt 3.6 manager with engine-backup, successfully restored it to a new CenTOS7 running 4.0, and trying to run ovirt-engine-rename. It always fails, and I am not sure where to look: /usr/share/ovirt-engine/setup/bin/ovirt-engine-rename [ INFO ] Stage: Initializing Welcome to the ovirt-engine-rename utility More details about the operation and possible implications of running this utility can be found here: http://www.ovirt.org/Changing_Engine_Hostname [ INFO ] Stage: Environment setup Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf'] Log file: /var/log/ovirt-engine/setup/ovirt-engine-rename-20170127124705-a1y8is.log Version: otopi-1.5.2 (otopi-1.5.2-1.el7.centos) [ INFO ] Stage: Environment packages setup [ INFO ] Stage: Programs detection [ INFO ] Stage: Environment setup [ INFO ] Stage: Environment customization New fully qualified server name: []: newname.domain.com --== PRODUCT OPTIONS ==-- [ INFO ] Stage: Setup validation [ INFO ] Engine machine hosting Storage Domains The following Storage Domains use the engine machine as an NFS server: ISO_DOMAIN They will be modified to use the new name. [ INFO ] The following files will be updated: /etc/ovirt-engine/engine.conf.d/10-setup-protocols.conf /etc/ovirt-engine/imageuploader.conf.d/10-engine-setup.conf /etc/ovirt-engine/isouploader.conf.d/10-engine-setup.conf /etc/ovirt-engine/logcollector.conf.d/10-engine-setup.conf /etc/ovirt-engine/ovirt-vmconsole-proxy-helper.conf.d/10-setup.conf /etc/pki/ovirt-engine/cert.conf /etc/pki/ovirt-engine/cert.template /etc/pki/ovirt-engine/certs/apache.cer /etc/pki/ovirt-engine/keys/apache.key.nopass /etc/pki/ovirt-engine/keys/apache.p12 [ INFO ] Stage: Transaction setup [ INFO ] Stopping engine service [ INFO ] Stage: Misc configuration [ INFO ] Stage: Package installation [ INFO ] Stage: Misc configuration [ ERROR ] Failed to execute stage 'Misc configuration': 'NoneType' object is not iterable [ INFO ] Stage: Clean up Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-rename-20170127124705-a1y8is.log [ INFO ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20170127124714-rename.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ ERROR ] Execution of rename failed The only error log file has is not very helpful: 2017-01-27 12:47:14 ERROR otopi.plugins.ovirt_engine_common.base.core.misc misc._terminate:148 Execution of rename failed After that, engine actually gets renamed, but certificates are not generated for a new name, and this is, I think, is a reason why new server cannot communicate with vdsm on ovirt nodes. I do use custom Apache certificates. CA files are restored fine from backup. Where can I start looking next? Thank you!

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Spicy console problem: no clipboard, double mouse with driver and agent installed and running.
by Erick Vogeler 27 Jan '17

27 Jan '17

Can someone help me fix this or point me to where the problem could be https://drive.google.com/open?id=0B4wHJ6nwLi9BckVKaDZMV2VlNk0 Happens with Linux VM's also The host: OS Version: RHEL - 7 - 2.1511.el7.centos.2.10 OS Description: CentOS Linux 7 (Core) Kernel Version: 3.10.0 - 327.36.2.el7.x86_64 KVM Version: 2.6.0 - 28.el7_3.3.1 LIBVIRT Version: libvirt-2.0.0-10.el7_3.4 VDSM Version: vdsm-4.18.21-1.el7.centos SPICE Version: 0.12.4 - 15.el7_2.2 CEPH Version: librbd1-0.80.7-3.el7 Regards

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