August 2015 - Users - oVirt List Archives

Migrate to CentOS7 on new hardware
by andreas.ewert＠cbc.de 07 Aug '15

07 Aug '15

Hello, I want to migrate my oVirt Hypervisors to CentOS7. My strategy is to install new boxes with CentOS7 and add them to the OVirt Cluster. But I get this message in engine.log: 2015-08-07 13:01:35,388 WARN [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-55) [5b9014cb] Correlation ID: 5b9014cb, Job ID: eddd1466-307f-400e-8d9b-b8cd67c2433c, Call Stack: null, Custom Event ID: -1, Message: Not possible to mix RHEL 6.x and 7.x hosts in one cluster. Tried adding RHEL - 7 - 1.1503.el7.centos.2.8 host to a cluster with RHEL - 6 - 6.el6.centos.12.2 hosts. I use oVirt Engine Version: 3.5.2.1-1.el6 Could you please show me a migration strategy? With best regards Andreas Andreas Ewert Server _____________________________________ Tel.: +49 221 456 44321 Fax: +49 221 456 95 44321 CBC Cologne Broadcasting Center GmbH Picassoplatz 1 • 50679 Köln Sitz der Gesellschaft: Köln • AG Köln • HRB 25232 Geschäftsführer: Thomas Harscheidt • www.cbc.de<http://www.cbc.de/> Ein Unternehmen der Mediengruppe RTL Deutschland

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VM Live Backup
by Prof. Dr. Michael Schefczyk 07 Aug '15

07 Aug '15

Dear All, One feature that I am really missing in oVirt is a foolproof (i.e., in a way that even I will be able to implement) scheduled (cron would be good) live VM backup that outputs ideally qcow2 files per disk plus an xml-configuration file that one could upload to a regular KVM host, in case that should be required. As far as I understand, that is not yet on the roadmap, correct? For my plain SOHO KVM hosts, I am using a script to do just that. While I almost never need the backups - files with a human readable text name which I know how to use on any freshly installed KVM host in case of a crash emergency -, I feel better keeping them available for some time period. Regards, Michael

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Testing Ovirt 3.6
by wodel youchi 06 Aug '15

06 Aug '15

Hi, I have installed ovirt 3.6 hosted-engine on Fedora22 for test. using NFS4 as storage for the vm engine, vms, iso and export. I am using ovirt-release-master repository I have some problems 1 - the VM engine is not showing up on the webgui. 2 - I cannot start a VM after it's creation, I get an error about a failed connection to DB, in the engine's error log I have an exception about a none existant function 'gethostnetworksbycluster'. 3 - I couldn't import my old export domain 4 - I couldn't import my old vm domain. thanks in advance.

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[ANN] oVirt 3.6.0 First Beta Release is now available for testing
by Sandro Bonazzola 06 Aug '15

06 Aug '15

The oVirt Project is pleased to announce the availability of the First Beta release of oVirt 3.6 for testing, as of August 4th, 2015. oVirt is an open source alternative to VMware vSphere, and provides an excellent KVM management interface for multi-node virtualization. The First Beta release is available now for Fedora 22, Red Hat Enterprise Linux 6.7, CentOS Linux 6.6 (or similar) and Red Hat Enterprise Linux 7.1, CentOS Linux 7.1 (or similar). The First Beta release can also be deployed on Hypervisor Hosts running Fedora 21 and Fedora 22. Experimental support for Debian 8.1 Jessie has been added too. This First Beta release of oVirt includes numerous bug fixes. See the release notes [1] for an initial list of the new features and bugs fixed. Please refer to release notes [1] for Installation / Upgrade instructions. A new Node ISO[2] is already available and an oVirt Live ISO will be available soon as well. Please note that mirrors[3] may need usually one day before being synchronized. Please refer to the release notes for known issues in this release. [1] http://www.ovirt.org/OVirt_3.6_Release_Notes [2] http://plain.resources.ovirt.org/pub/ovirt-3.6-pre/iso/ovirt-node/ [3] http://www.ovirt.org/Repository_mirrors#Current_mirrors -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Cannot save network
by Alan Murrell 06 Aug '15

06 Aug '15

Hello, I am running oVirt 3.5.1. I am running into an error when I try to save my network config: --- START ---Operation Canceled Error while executing action: ovirt-h01: Network address must be specified when using static ip --- END --- I have several logical networks defined, all of which are set with "bootproto=none"; the only logical network that has a static IP is "ovirtmgmt" I have searched the archives and Google and found same issue, but no resolution to my setup. Any ideas? Thanks! :-) Regards, Alan

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Prereqs for Self Hosted Engine Hyper Converged Gluster Support
by Michael DePaulo 05 Aug '15

05 Aug '15

Hi, I am trying to follow these instructions on 3.6 alpha 3: http://www.ovirt.org/Features/Self_Hosted_Engine_Hyper_Converged_Gluster_Su… The 1st time I ran ovirt-hosted-engine-setup (which was unsuccessful), I saw the prompt: Do you want to configure this host for providing GlusterFS storage? (Yes, No)[No]: Now I no longer see it. Must gluster not have any peers or volumes already? Is there some other prereq that I am missing? Thanks in advance, -Mike

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Invitation: Hosted Engine - FC / Gluster support Deep Dive @ Mon Aug 31, 2015 4pm - 4:45pm (sbonazzo@redhat.com)
by sbonazzo＠redhat.com 05 Aug '15

05 Aug '15

You have been invited to the following event. Title: Hosted Engine - FC / Gluster support Deep Dive Google event: https://plus.google.com/u/0/events/cjj32sv7hphujtnbu7st87827o8 youtube: https://www.youtube.com/watch?v=ZSe1dBHQfnA When: Mon Aug 31, 2015 4pm - 4:45pm Rome Calendar: sbonazzo(a)redhat.com Who: * sbonazzo(a)redhat.com - organizer * devel(a)ovirt.org * users(a)ovirt.org Event details: https://www.google.com/calendar/event?action=VIEW&eid=OGhlbmtxMDZqdTFwcG0yc… Invitation from Google Calendar: https://www.google.com/calendar/ You are receiving this courtesy email at the account users(a)ovirt.org because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively you can sign up for a Google account at https://www.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to modify your RSVP response. Learn more at https://support.google.com/calendar/answer/37135#forwarding

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vhostmd
by Arsène Gschwind 05 Aug '15

05 Aug '15

Hi, I'm running oVirt 3.5 and trying to setup vhostmd on EL7 but I'm no able to find the vdsm-hook-vhostmd for EL7, are there some reason this RPM isn't available? Having no found the hook I've tried to setup a custom disk for vhostmd but I could not figure out how to do this since it only allows to add disk devices from storage domains. Anyone setup and use vhostmd? Thank for any help/hint. Rgds, Arsène

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Data Center becomes Non Responsive when I reboot a host
by Konstantinos Christidis 04 Aug '15

04 Aug '15

Hello ovirt users, I have 4 hosts with a distributed replicated 2x2 GlusterFS storage. (oVirt3.5/CentOS7) When I reboot a host (in maintenance mode and not my SPM host) my Data Center becomes "Non Responsive", my storage becomes red and inactive, and many VMs become "paused due to unknown storage error". The same happens if I administratively set ovirtmgmt network down (to a host in maintenance mode and not my SPM host) with ifconfig ovirtmgmt down. I know that management network (ovirtmgmt) is required by default and is part of oVirt monitoring process but is there anything I can do in order to reboot a host without causing this mess? Thanks, K.

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self-hosted-engine Failed to establish session with host
by Neil 04 Aug '15

04 Aug '15

Hi guys, I initially installed an AllinOne oVirt installation, but realised half way through that I actually need a self-hosted-engine instead, so I did an engine-cleanup and removed the database etc then ran... yum install ovirt-hosted-engine-setup hosted-engine --deploy I installed Centos 6.4 minimal on the VM then did a full yum update to 6.6 and restarted as well as disabled selinux. Everything went through perfectly and my engine is up and running, however my installation suddenly terminated when trying to add the host to the Default datacenter as follows.... [ INFO ] Engine replied: DB Up!Welcome to Health Status! Enter the name of the cluster to which you want to add the host (Default) [Default]: [ ERROR ] Cannot automatically add the host to cluster Default: Cannot add Host. Connecting to host via SSH has failed, verify that the host is reachable (IP address, routable address etc.) You may refer to the engine.log file for further details. [ ERROR ] Failed to execute stage 'Closing up': Cannot add the host to cluster Default [ INFO ] Stage: Clean up [ INFO ] Generating answer file '/var/lib/ovirt-hosted-engine-setup/answers/answers-20150804143614.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination I've attached my engine.log and my answer file. I have confirmed that both systems are able to reach each other, so I'm not sure if it's perhaps some kind of DNS related issue perhaps? Note that I'm only using host file resolution and not internal DNS names. Please could someone take a look and see if you are able to pick up anything obvious please. Thank you! Regards. Neil Wilson.

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