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[ANN] oVirt 4.1.9 Release is now available
by Lev Veyde 31 Jan '18

31 Jan '18

The oVirt Project is pleased to announce the availability of the oVirt 4.1.9 release, as of January 24th, 2017 This update is the ninth in a series of stabilization updates to the 4.1 series. Please note that no further updates will be issued for the 4.1 series. We encourage users to upgrade to 4.2 series to receive new features and updates. This release is available now for: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later * oVirt Node 4.1 See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available - oVirt Live is already available [2] - oVirt Node will be available soon [2] Additional Resources: * Read more about the oVirt 4.1.9 release highlights: http://www.ovirt.org/release/4.1.9/ * 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] http://www.ovirt.org/release/4.1.9/ [2] http://resources.ovirt.org/pub/ovirt-4.1/iso/ -- Lev Veyde Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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ovirt-guest-agent.service has broken in Debian 8 virtual machines after updates hosts to 4.2
by Алексей Максимов 30 Jan '18

30 Jan '18

Hello, oVirt guru's I just successfully updated my oVirt HE to 4.2. But after I upgraded all hosts and virtual machine restart, the ovirt-guest-agent.service has stopped running in virtual machines with Debian Jessie. ---- # lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 8.10 (jessie) Release: 8.10 Codename: jessie ---- # dpkg -l | grep ovirt ii ovirt-guest-agent 1.0.10.2.dfsg-2+deb8u1 all daemon that resides within guest virtual machines Note: This package installed from Debian Jessie official repo ---- # systemctl status ovirt-guest-agent.service ● ovirt-guest-agent.service - oVirt Guest Agent Loaded: loaded (/lib/systemd/system/ovirt-guest-agent.service; disabled) Active: failed (Result: exit-code) since Tue 2018-01-02 17:36:29 MSK; 23min ago Main PID: 3419 (code=exited, status=1/FAILURE) Jan 02 17:36:29 APP3 systemd[1]: Started oVirt Guest Agent. Jan 02 17:36:29 APP3 systemd[1]: ovirt-guest-agent.service: main process exited, code=exited, status=1/FAILURE Jan 02 17:36:29 APP3 systemd[1]: Unit ovirt-guest-agent.service entered failed state. ---- >From /var/log/ovirt-guest-agent/ovirt-guest-agent.log: MainThread::INFO::2018-01-02 17:36:29,764::ovirt-guest-agent::57::root::Starting oVirt guest agent MainThread::ERROR::2018-01-02 17:36:29,768::ovirt-guest-agent::138::root::Unhandled exception in oVirt guest agent! Traceback (most recent call last): File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 132, in <module> agent.run(daemon, pidfile) File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 63, in run self.agent = LinuxVdsAgent(config) File "/usr/share/ovirt-guest-agent/GuestAgentLinux2.py", line 375, in __init__ AgentLogicBase.__init__(self, config) File "/usr/share/ovirt-guest-agent/OVirtAgentLogic.py", line 171, in __init__ self.vio = VirtIoChannel(config.get("virtio", "device")) File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 150, in __init__ self._stream = VirtIoStream(vport_name) File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 131, in __init__ self._vport = os.open(vport_name, os.O_RDWR) OSError: [Errno 2] No such file or directory: '/dev/virtio-ports/com.redhat.rhevm.vdsm' ---- Before updating to version 4.2 (for version 4.1.8) everything worked fine. Please help solve the problem

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[ANN] oVirt 4.2.1 Fourth Release Candidate is now available
by Lev Veyde 30 Jan '18

30 Jan '18

The oVirt Project is pleased to announce the availability of the oVirt 4.2.1 Fourth Release Candidate, as of January 30th, 2017 This update is a release candidate of the first in a series of stabilization updates to the 4.2 series. This is pre-release software. This pre-release should not to be used in production. This release is available now for: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later * oVirt Node 4.2 See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available - oVirt Node will be available soon [2] Additional Resources: * Read more about the oVirt 4.2.1 release highlights: http://www.ovirt.org/release/4. <http://www.ovirt.org/release/4.2.1/>2 <http://www.ovirt.org/release/4.2.1/>. <http://www.ovirt.org/release/4.2.1/> 1 <http://www.ovirt.org/release/4.2.1/>/ <http://www.ovirt.org/release/4.2.1/> * 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] http://www.ovirt.org/release/4. <http://www.ovirt.org/release/4.2.1/>2 <http://www.ovirt.org/release/4.2.1/>. <http://www.ovirt.org/release/4.2.1/> 1 <http://www.ovirt.org/release/4.2.1/>/ <http://www.ovirt.org/release/4.2.1/> [2] http://resources.ovirt.org/pub/ovirt-4. <http://resources.ovirt.org/pub/ovirt-4.2-pre/iso/>2-pre <http://resources.ovirt.org/pub/ovirt-4.2-pre/iso/>/iso/ <http://resources.ovirt.org/pub/ovirt-4.2-pre/iso/> -- Lev Veyde Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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Nvidia Tesla M60 Direct GPU-Passthrough giving issues + VNC
by Ravyu Sivakumaran 30 Jan '18

30 Jan '18

Hi, I am running an Ovirt host on a SuperMicro SuperServer 2028GR-TRH equipped with 2x2 Tesla M60s (they are dual GPU Cards). I've followed this guide- https://www.ovirt.org/develop/release-management/features/virt/hostdev-pass… and managed to get a Windows 10 Enterprise guest running with one GPU attached to it. The windows guest successfully detects the single M60 GPU and I can install the latest Tesla drivers (390.65) on it with no problem. However, the GPU refuses to do any work whatsoever. The control panel says the GPU is being used for compute and not as a VGA adapter (shows up as inactive on the activity monitor). Nvidia's GPUModeSwitcher tool tells me that the GPU is in Graphics mode, so there is a driver issue here. I have access to the GRID Drivers. However I'm not sure why I'd need them as I'm only doing a direct-passthrough, not GPU Virtualization. Any ideas? Also, after activating Device-Passthrough, I'm unable to access my VM's via the Hosts' VNC anymore. I get an "unable to connect" error. Im currently accessing the Guests with a direct VNC connection. Problem is, I can't clone/create new VMs anymore because of this. I must've done something wrong, not sure what. Thanks in advance! -- Yours Faithfully Ravyu

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SSL Workflow for oVirt
by Gabriel Stein 29 Jan '18

29 Jan '18

Hi all, I think that I found a way to solve the problem from: http://lists.ovirt.org/pipermail/users/2018-January/086441.html and I'm trying to fix it. But my servers are in Production(50%) and I found that are some errors with my SSL Certificates. ## What I need now? Fixes all certificates problems using my Freeipa generated certificates: vdsmclient* on hosts, ovirt-engine communication ssl certificates on hosted-engine. I made with Freeipa(internal) the certificates for ovirt-engine( only apache - self hosted) and Hosts(vsdmclient and vdsmkey....) and replaced using this howto: https://gist.github.com/qrkourier/9c9ac3e8b190dcb91d3767179d5a39ea ## Now ovirt-engine can't contact a Host(Non Responsive) with the errors(Yes, I have a Backup from all old certificates): *VDSM host.domain.tld command GetCapabilitiesVDS failed: General SSLEngine problem* On engine.log: *2018-01-23 13:33:40,160+01 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.GetAllVmStatsVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-23) [] Command 'GetAllVmStatsVDSCommand(HostName = host.domain.tld, VdsIdVDSCommandParametersBase:{hostId='d6bc650b-7edd-4019-b316-54313217880f'})' execution failed: VDSGenericException: VDSNetworkException: General SSLEngine problem* *2018-01-23 13:33:40,160+01 INFO [org.ovirt.engine.core.vdsbroker.monitoring.PollVmStatsRefresher] (EE-ManagedThreadFactory-engineScheduled-Thread-23) [] Failed to fetch vms info for host 'host.domain.tld' - skipping VMs monitoring.* ## I read, that ovirt-engine generates certificates for all hosts and it uses his own CA. Questions: - How can I fix the communication from hosted-engine and vsdm on hosts? Should I copy my Freeipa ca.crt and replace the ca.der file on */etc/pki/ovirt-engine/certs*? - Should I change the engine.cer certificate from */etc/pki/ovirt-engine/certs *with my Certificate made using Freeipa? - How to do that properly? - Where can I find a complete workflow from SSL Certificates from oVirt? What certificates should I change? ## I found some links that to me are confusing(or I'm just dumb), I will take my end solution and do a howto to all: - https://www.ovirt.org/develop/release-management/features/infra/pki/ - how updated is that? I can't overwrite a ca from ovirt-engine? - https://www.ovirt.org/documentation/admin-guide/appe-oVirt_and_SSL/ *- * *Note:** Using a commercially issued certificate for HTTPS connections does not affect the certificate used for authentication between your Engine and hosts. They will continue to use the self-signed certificate generated by the Engine... * ... Well, why I keep receiving errors with the self-signed CA from ovirt-engine and the disk uploads?(*Unable to upload image to disk a-b-c-d-e due to a network error. Make sure ovirt-imageio-proxy service is installed and configured, and ovirt-engine's certificate is registered as a valid CA in the browser. The certificate can be fetched from https://<engine_url>/ovirt-engine/services/pki-resource?resource=ca-certificate&format=X509-PEM-CA* ) Thanks in Advance! Best Regards, Gabriel PS: I would help with the oVirt Wiki if needed, I would follow the rhce path and do the rhcs certification too, will be nice to study a lot. Gabriel Stein ------------------------------ Gabriel Ferraz Stein Tel.: +49 (0) 170 2881531

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No master storage domain, force select?
by Jure Kranjc 29 Jan '18

29 Jan '18

This is a cryptographically signed message in MIME format. --------------ms000006050602060305000308 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-Language: en-US Hello, is there a way to force select master storage domain? I have three data=20 domains, we had some storage problems and now none of the domains is=20 master. I cannot activate any because I should first activate the master = one. 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PHX planned maintenance 29.01.2018 @19:00 GMT
by Evgheni Dereveanchin 29 Jan '18

29 Jan '18

Hi everyone, Planned works are going to be performed in the PHX data center today. They are related to core networking hardware upgrades and may cause short connectivity loss to services hosted by the oVirt project, including: * Jenkins CI * Package repositories * project website * mailing lists The maintenance window starts at 19:00 GMT and has a duration of one hour. I will pause CI job execution before the maintenance window so builds will be queued and executed after network upgrades are implemented to decrease the possibility of false positives. I will follow up with any further updates. -- Regards, Evgheni Dereveanchin

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NFS sync vs async
by Jean-Francois Courteau 29 Jan '18

29 Jan '18

Hello there, At first I thought I had a performance problem with virtio-scsi on Windows, but after thorough experimentation, I finally found that my performance problem was related to the way I share my storage using NFS. Using the settings suggested on the oVirt website for the /etc/exports file, I implemented the following line: /storage *(rw,sync,no_subtree_check,all_squash,anonuid=36,anongid=36) The underlying filesystem is ext4. In the end, whatever the VM I am running through this NFS export, I get extremely poor write performance, like sub-100 IOPS (my disks usually can do 800-1k). Under the hood, iotop shows that my host IO is all taken up by jbd2, and if I understand correctly, it is the ext4 logging process. I have read that using the "async" option in my NFS export is unsafe, like if my host crashes during a write operation, it could corrupt my VM Disks. What is the best combination of filesystem / settings if I want to go with NFS sync? Is someone getting good performance with the same options as me? if so, why do I get such abysmal IOPS numbers? Thanks! J-F Courteau

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Q: Core Reservation on Hyperthreaded CPU
by Andrei V 29 Jan '18

29 Jan '18

Hi, I’m currently running node on HP ProLiant with 2 x Xeon with 4 core each. Because of hyperthreading each physical core is being seen as 2. How KVM/oVirt reserves cores if for example I allocate 4 CPU cores for VM ? Does it allocates 4 real CPU cores, or 2 cores with 2 threads each ? Each VM consumes very low CPU resources. What happens if # of used cores consumed by VMs will exceed real count of physical CPU cores ? Thanks. Andrei

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disk copy exception
by Donny Davis 28 Jan '18

28 Jan '18

I am trying to copy a disk that was from a storage domain that was imported from 4.1 to a newer storage domain and this exception is thrown in the UI Uncaught exception occurred. Please try reloading the page. Details: Exception caught: (TypeError) : Cannot read property 'g' of null Please have your administrator check the UI logs

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