December 2015 - Users - oVirt List Archives

Network instability after upgrade 3.6.0 -> 3.6.1
by Stefano Danzi 29 Dec '15

29 Dec '15

Hello, I have one testing host (only one host) with self hosted engine and 2 VM (one linux and one windows). After upgrade ovirt from 3.6.0 to 3.6.1 the network connection works discontinuously. Every 10 minutes HA agent restart hosted engine VM because result down. But the machine is UP, only the network stop to work for some minutes. I activate global maintenace mode to prevent engine reboot. If I ssh to the hosted engine sometimes the connection work and sometimes no. Using VNC connection to engine I see that sometime VM reach external network and sometimes no. If I do a tcpdump on phisical ethernet interface I don't see any packet when network on vm don't work. Same thing happens fo others two VM. Before the upgrade I never had network problems.

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virt-viewer error
by 靳占冰 29 Dec '15

29 Dec '15

virt-viewer-x64-3.0.msi version can not connect a virtual machine. Error: Can not find the specified file

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Hosted engine vs. hypervisor hosts naming on hyperconverged setup
by Will Dennis 29 Dec '15

29 Dec '15

Hi all, I have a hyperconverged setup where I have a hosted engine that runs on one of three hosts, which are named “ovirt-node-[01,02,03]” — [root@ovirt-node-01 ~]# hosted-engine --vm-status | grep -e "Hostname" -e "Engine" Hostname : ovirt-node-01 Engine status : {"health": "good", "vm": "up", "detail": "up"} Hostname : ovirt-node-02 Engine status : {"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown"} Hostname : ovirt-node-03 Engine status : {"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown”} When I deployed the hosted engine, I gave it a separate hostname/IP, as I expected it would need it (hostname = “ovirt-engine-01”) However, when I look at the hosts in the oVirt web admin screen, I see that the first host has the name “ovirt-engine-01” whereas it has the hostname of “ovirt-node-01” I also notice that even though the 1st host is showing the number of VM’s running as “1”, when I click on the “VMs” node, there are no VMs showing. Not sure of what “should be”, but, would expect that the first host would have a name equal to its DNS hostname (like the other two do), and that in VMs I would see the engine VM. But is that not how a hosted engine setup works? And if not, if the engine VM migrates over to another host, will that host gain the name "“ovirt-engine-01”? I ask this now because I want to set up a storage domain on these hosts using GlusterFS, and I have to select a host to base the connection on. In the “Use Host” dropbox, I currently see the values: ovirt-node-03 ovirt-node-02 ovirt-engine-01 I would expect that the last entry would be for “ovirt-host-01”, not “ovirt-engine-01”… I don’t want to set up the storage domain until I figure this out, so as to prevent potential breakage... Thanks, Will

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Hosted engine support
by Budur Nagaraju 29 Dec '15

29 Dec '15

HI Installed KVM in the host in which VT is enabled . installed one vm centos6.7 64 bit in the KVM server and tried to configure Hosted engine ,getting the below error , *"Failed to execute stage ‘Environment Customization’: Hardware virtualization support is not available :please check BIOS settings and turn on NX support if available"* Even though VT is enabled facing the issue any setting needs to be done in the vm ? Thanks, Nagaraju

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Change "ovirt-engine" virtual directory
by Hamid Mazrae Mollaie 29 Dec '15

29 Dec '15

hi all i want to change "ovirt-engine" in url's web admin portal for branding. how can i do? tanx

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oVirt 3.6.1 USB Host Device passthrough
by ovirt＠timmi.org 29 Dec '15

29 Dec '15

This is a multi-part message in MIME format. --------------070308000109060601050508 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi list, I'm currently trying to get USB devices into a VM. My host is running a oVirt 3.6.1. I'm trying to use the GUI feature to add the device into the VM and I'm facing two issues: 1. I receive the following message while starting the VM: Error while executing action: <VM_Name>: * Cannot run VM. There is no host that satisfies current scheduling constraints. See below for details: * The host <host_name> did not satisfy internal filter HostDevice because it does not support host device passthrough.. 2. The USB device list never get refreshed while removing or inserting different devices. Does anyone knows what I'm doing wrong or what I need to check? I found for example the following description for oVirt 3.5. http://wiki.rosalab.com/en/index.php/Blog:ROSA_Planet/How_to_use_USB_device… But this is not helping me as I will have multiple USB devices with the same ID in the host. Best regards and Merry Christmas Christoph --------------070308000109060601050508 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi list, I'm currently trying to get USB devices into a VM. My host is running a oVirt 3.6.1. I'm trying to use the GUI feature to add the device into the VM and I'm facing two issues: 1. I receive the following message while starting the VM: <tt>Error while executing action: </tt><tt> </tt><tt> </tt><tt><VM_Name>:</tt> <ul style="margin-top:0"> <li><tt>Cannot run VM. There is no host that satisfies current scheduling constraints. See below for details:</tt></li> <li><tt>The host <host_name> did not satisfy internal filter HostDevice because it does not support host device passthrough..</tt></li> </ul> 2. The USB device list never get refreshed while removing or inserting different devices. Does anyone knows what I'm doing wrong or what I need to check? I found for example the following description for oVirt 3.5. <a class="moz-txt-link-freetext" href="http://wiki.rosalab.com/en/index.php/Blog:ROSA_Planet/How_to_use_USB_device…">http://wiki.rosalab.com/en/index.php/Blog:ROSA_Planet/How_to_use_USB_device…</a> But this is not helping me as I will have multiple USB devices with the same ID in the host. Best regards and Merry Christmas Christoph </body> </html> --------------070308000109060601050508--

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oVirt 3.6: Dummy interfaces
by Alan Murrell 29 Dec '15

29 Dec '15

Hello, I just upgraded my oVirt 3.5.1 install to 3.6. I have a self-hosted engine setup all on a single server. I make use of dummy interfaces for internal networks for my various labs/testing setups. Normally I edit the following file: /usr/lib/python2.7/site-packages/vdsm/config.py I then go to the variable 'fake_nics' and add 'dummy*", so it looks like this: ('fake_nics', 'dummy_*,veth_*,dummy*', ), After I added my entry, I even restarted the whole server (which restarts the VDSM on the host as well as the engine VM), but when I go into the "Network Interfaces" on the host the dummy interfaces are not showingup. Are dummy interfaces still supported in 3.6? I see a feature called "Isolated Networks" in 3.6; is this essentially a replacement? The Features page is a bit confusing to me on how to create an isolated network? Thanks! Regards, Alan

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Self-hosted engine: Host cannot activate
by Alan Murrell 29 Dec '15

29 Dec '15

I am attempting to install oVirt 3.6 on a CentOS7 host. it is a single server, so I am trying to install a self-hosted engine. I am able to install oVirt 3.5 self-hosted engine, but am having some problems doing it with 3.6. Everything appears to go fine; the engine-setup completes successfully. On the host, I pressed"1" to indicate engine-setup was complete, and it can connect to the webadmin but the host never becomes operational. I am able to log in to the webadmin, and indeed the host is in a non-operational state. When I click on the host then click on the "Virtual networks" tab, all my interfaces are showing a red arrow. When I click on "Setup Host Networks", my "ovirtmgmt" network is unassigned. Believing this to be why my host is not operational (since it is under "Required"), I assigned it to my management interface, but the interfaces still remain red. In addition, the "ovirtmgmt" network does have a green arrow, but also the icon indicating "Out of sync". If I click on "Sync All Networks", I get the following error: "Error while executing action SyncAllHostNetworks: Network is currently being used" which makes sense, since "ovirtmgmt" is assigned/in use. I am unable to unassign ovirtmgmt. Current status is this: - All network interfaces are showing the red "down" arrow - "ovirtmgmt" is assigned to my management NIC, but indicating that it is out of sync - I am unable to unassign the "ovirtmgmt" network (or at least, if I do, the "OK" button is greyed out) I could destroy the engine VM and go through the setup again, with the idea of once it is installed and waiting for the host to become operational, I could do a "Sync All Networks" and see if the networks turn green and go from there. I wanted to see what sort of insight I could get from here first. I am not sure what logs would be useful to you, so let me know what you want to see and I and make them available (I will likely zip them up and post a link) Something else I could try if this becomes a "puzzler" is to do a 3.5.x self-hosted engine then perform an in-place upgrade to 3.6 and see if that works? I would rather try to help make a direct 3.6 install work, though... Thanks, in advance! :-) Regards, Alan

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Migration path: All-In-One to self-hosted engine?
by Alan Murrell 29 Dec '15

29 Dec '15

Hi All, I am just wondering if there is any sort of migration path for those running All-In-One setups to a self-hosted engine setup? Regards, Alan

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Re: [ovirt-users] R: Re: Network instability after upgrade 3.6.0 -> 3.6.1 [SOLVED]
by Roy Golan 28 Dec '15

28 Dec '15

On Mon, Dec 28, 2015 at 4:06 PM, Yedidyah Bar David <didi(a)redhat.com> wrote: > On Mon, Dec 28, 2015 at 3:48 PM, Stefano Danzi <s.danzi(a)hawai.it> wrote: > > Problem solved!!! > > > > The file hosted-engine.conf had a wrong fqdn. > > I don't think that this happened during upgrade... mybe thay my colleague > > did something of wrong... > > Thanks for the report :-) > > > > > > > Il 20/12/2015 14.52, Stefano Danzi ha scritto: > > > > Network problems was solved after changing Bond mode (and it's strange. > I > > have to investigate around qemu-kvm, cento 7.2 and switch firmware ), but > > broker problem still exist. If I turn on the host, ha agent start engine > > vm. When engine VM is up, broker strats to send email. Now I haven't > here > > detailed logs. > > > > > > -------- Messaggio originale -------- > > Da: Yedidyah Bar David <didi(a)redhat.com> > > Data: 20/12/2015 11:20 (GMT+01:00) > > A: Stefano Danzi <s.danzi(a)hawai.it>, Dan Kenigsberg <danken(a)redhat.com> > > Cc: users <users(a)ovirt.org> > > Oggetto: Re: [ovirt-users] Network instability after upgrade 3.6.0 -> > 3.6.1 > > > > On Fri, Dec 18, 2015 at 5:31 PM, Stefano Danzi <s.danzi(a)hawai.it> wrote: > >> I found this in vdsm.log and I think that could be the problem: > >> > >> Thread-3771::ERROR::2015-12-18 > >> > >> > 16:18:58,597::brokerlink::279::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(_communicate) > >> Connection closed: Connection closed > >> Thread-3771::ERROR::2015-12-18 > 16:18:58,597::API::1847::vds::(_getHaInfo) > >> failed to retrieve Hosted Engine HA info > >> Traceback (most recent call last): > >> File "/usr/share/vdsm/API.py", line 1827, in _getHaInfo > >> stats = instance.get_all_stats() > >> File > >> > >> > "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", > >> line 103, in get_all_stats > >> self._configure_broker_conn(broker) > >> File > >> > >> > "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", > >> line 180, in _configure_broker_conn > >> dom_type=dom_type) > >> File > >> > >> > "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", > >> line 176, in set_storage_domain > >> .format(sd_type, options, e)) > >> RequestError: Failed to set storage domain FilesystemBackend, options > >> {'dom_type': 'nfs3', 'sd_uuid': '46f55a31-f35f-465c-b3e2-df45c05e06a7'}: > >> Connection closed > > > > My guess is that this is a consequence of your networking problems. > > > > Adding Dan. > > > >> > >> > >> Il 17/12/2015 18.51, Stefano Danzi ha scritto: > >>> > >>> I partially solve the problem. > >>> > >>> My host machine has 2 network interfaces with a bond. The bond was > >>> configured with mode=4 (802.3ad) and switch was configured in the same > >>> way. > >>> If I remove one network cable the network become stable. With both > cables > >>> attached the network is instable. > >>> > >>> I removed the link aggregation configuration from switch and change the > >>> bond in mode=2 (balance-xor). Now the network are stable. > >>> The strange thing is that previous configuration worked fine for one > >>> year... since the last upgrade. > >>> > >>> Now ha-agent don't reboot the hosted-engine anymore, but I receive two > >>> emails from brocker evere 2/5 minutes. > >>> First a mail with "ovirt-hosted-engine state transition > >>> StartState-ReinitializeFSM" and after "ovirt-hosted-engine state > >>> transition > >>> ReinitializeFSM-EngineStarting" > >>> > >>> > >>> Il 17/12/2015 10.51, Stefano Danzi ha scritto: > >>>> > >>>> Hello, > >>>> I have one testing host (only one host) with self hosted engine and 2 > VM > >>>> (one linux and one windows). > >>>> > >>>> After upgrade ovirt from 3.6.0 to 3.6.1 the network connection works > >>>> discontinuously. > >>>> Every 10 minutes HA agent restart hosted engine VM because result > down. > >>>> But the machine is UP, > >>>> only the network stop to work for some minutes. > >>>> I activate global maintenace mode to prevent engine reboot. If I ssh > to > >>>> the hosted engine sometimes > >>>> the connection work and sometimes no. Using VNC connection to engine > I > >>>> see that sometime VM reach external network > >>>> and sometimes no. > >>>> If I do a tcpdump on phisical ethernet interface I don't see any > packet > >>>> when network on vm don't work. > >>>> > >>>> Same thing happens fo others two VM. > >>>> > >>>> Before the upgrade I never had network problems. > >>>> _______________________________________________ > >>>> Users mailing list > >>>> Users(a)ovirt.org > >>>> http://lists.ovirt.org/mailman/listinfo/users > >>>> > >>> > >>> _______________________________________________ > >>> Users mailing list > >>> Users(a)ovirt.org > >>> http://lists.ovirt.org/mailman/listinfo/users > >> > >> _______________________________________________ > >> Users mailing list > >> Users(a)ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/users > > > > > > > > -- > > Didi > > > > > > _______________________________________________ > > Users mailing list > > Users(a)ovirt.org > > http://lists.ovirt.org/mailman/listinfo/users > > > > > > > > -- > Didi > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >

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