- Users - oVirt List Archives

VM remote noVNC console
by Alex K 06 Oct '17

06 Oct '17

Hi all, I am trying to get the VM console of a VM through SSH socks proxy. This is a scenario I will frequently face, as the ovirt cluster will be available only though a remote SSH tunnel. I am trying several console options without success. With SPICE or VNC I get issue with virt-viewer saying "Unable to connect to libvirt with URI [none]' With noVNC I get a separate tab on browser where it is stuck showing "loading". Has anyone success with this kind of remote console access? Thanx, Alex

3 5

Debugging warning messages about bonding mode 4
by Gianluca Cecchi 06 Oct '17

06 Oct '17

Hello, on a 2 nodes cluster in 4.1.6 I have this situation. Every node has 3 bonds, each one composed by 2 network adapters and each one of type mode=4 (actually in setup networks I have configured custom and then the value: "mode=4 miimon=100" ) At this moment only one of the servers has access to FC storage, while the other is currently on maintenance. On 2 of the 3 bonds of the active server I get an exclamation point in "Network Interfaces" subtab with this mouseover popup Bond is in link aggregation mode (mode 4), but no partner mac has been reported for it What is the exact meaning of this message? Do I have to care about (I think so..)? What should I report to network guys? Eg, one of these two warning bonds status is: # cat /proc/net/bonding/bond2 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: IEEE 802.3ad Dynamic link aggregation Transmit Hash Policy: layer2 (0) MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 802.3ad info LACP rate: slow Min links: 0 Aggregator selection policy (ad_select): stable System priority: 65535 System MAC address: 48:df:37:0c:7f:5a Active Aggregator Info: Aggregator ID: 5 Number of ports: 2 Actor Key: 9 Partner Key: 6 Partner Mac Address: b8:38:61:9c:75:80 Slave Interface: ens2f2 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 2 Permanent HW addr: 48:df:37:0c:7f:5a Slave queue ID: 0 Aggregator ID: 5 Actor Churn State: none Partner Churn State: none Actor Churned Count: 2 Partner Churned Count: 3 details actor lacp pdu: system priority: 65535 system mac address: 48:df:37:0c:7f:5a port key: 9 port priority: 255 port number: 1 port state: 61 details partner lacp pdu: system priority: 32768 system mac address: b8:38:61:9c:75:80 oper key: 6 port priority: 32768 port number: 293 port state: 61 Slave Interface: ens2f3 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 2 Permanent HW addr: 48:df:37:0c:7f:5b Slave queue ID: 0 Aggregator ID: 5 Actor Churn State: none Partner Churn State: none Actor Churned Count: 0 Partner Churned Count: 3 details actor lacp pdu: system priority: 65535 system mac address: 48:df:37:0c:7f:5a port key: 9 port priority: 255 port number: 2 port state: 61 details partner lacp pdu: system priority: 32768 system mac address: b8:38:61:9c:75:80 oper key: 6 port priority: 32768 port number: 549 port state: 61 Also, the other node (that is currently in maintenance) shows one of the 2 interfaces of bond2 (ens2f2) as down (red arrow) but on the host # ip link show ens2f2 6: ens2f2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond2 state UP mode DEFAULT qlen 1000 link/ether 48:df:37:0c:85:4e brd ff:ff:ff:ff:ff:ff # Does this depend on the host being in maintenance? Perhaps when a host is in maintenance, the warnings on it are not checked/updated again from engine? Thanks in advance, Gianluca

2 1

Unable to grant permissions to AD users
by Michael Watters 06 Oct '17

06 Oct '17

I'm having some issues granting permissions to AD users in ovirt-engine 4.1. Users can log in but receive an error as below. The user user@example.com@example.com is not authorized to perform login I am also not able to grant this user any permissions through the admin console. Entering a user name in the search field for the System Permissions section results in a blank list. Attached is a screenshot for reference. Does anybody have an idea on what would cause this? The log files aren't very useful and don't show any errors.

2 3

VDI whit Ovirt Spice and NVIDIA passtrought
by codignotto . 05 Oct '17

05 Oct '17

Good night friends, I'm trying to make the passtrought GPU run using OVIRT with an NVIDIA M2000 / K2200 and a K4000, I made several configurations, the VM with windows recognizes the card, I install the NVIDIA drivers and after restarting the windows and access using the client SPICE remote viwer the mouse to work, everything works because the mouse does not work for anything, already tested with Win8, Win10 and the problem persists, the card is recognized but the mouse does not work. Has anyone used it this way? Passtrought from GPU to a VM using SPICE? I'm going to use these clients with 3d and adobe products. Thank you for your help Deny

1 0

IOPS stats/reports from all hosts to storage
by Neil 05 Oct '17

05 Oct '17

Hi guys, I'm running FC storage with 4 hosts on oVirt 3.6 and we've been having some IOPS issues recently and the SAN provider has asked me to provide them with the following info... Datastore Stripe Size Default VM Disk Stripe Size Average IO Size Average THROUGHPUT (MB/s) Average IOPS Maximum IOPS Read/Write Percentage of IO Datastore Average Latency VM Disk Average Latency All of this is from across all hosts and VM's to the storage domain. Is there any way to get this kind of info from oVirt? I've been looking at oVirt-reports but I don't see much as far as IO/throughput reporting goes. Apologies if I've missed something obvious. Thanks. Regards. Neil Wilson.

3 6

LVM structure
by Nicolas Ecarnot 05 Oct '17

05 Oct '17

Hello, I'm still coping with my qemu image corruption, and I'm following some Redhat guidelines that explains the way to go : - Start the VM - Identify the host - On this host, run the ps command to identify the disk image location : # ps ax|grep qemu-kvm|grep vm_name - Look for "-drive file=/rhev/data-center/00000001-0001-0001-0001-00000000033e/b72773dc-c99c-472a-9548-503c122baa0b/images/91bfb2b4-5194-4ab3-90c8-3c172959f712/e7174214-3c2b-4353-98fd-2e504de72c75" (YMMV) - Resolve this symbolic link # ls -la /rhev/data-center/00000001-0001-0001-0001-00000000033e/b72773dc-c99c-472a-9548-503c122baa0b/images/91bfb2b4-5194-4ab3-90c8-3c172959f712/e7174214-3c2b-4353-98fd-2e504de72c75 lrwxrwxrwx 1 vdsm kvm 78 3 oct. 2016 /rhev/data-center/00000001-0001-0001-0001-00000000033e/b72773dc-c99c-472a-9548-503c122baa0b/images/91bfb2b4-5194-4ab3-90c8-3c172959f712/e7174214-3c2b-4353-98fd-2e504de72c75 -> /dev/b72773dc-c99c-472a-9548-503c122baa0b/e7174214-3c2b-4353-98fd-2e504de72c75 - Shutdown the VM - On the SPM, activate the logical volume : # lvchange -ay /dev/b72773dc-c99c-472a-9548-503c122baa0b/e7174214-3c2b-4353-98fd-2e504de72c75 - Verify the state of the qemu image : # qemu-img check /dev/b72773dc-c99c-472a-9548-503c122baa0b/e7174214-3c2b-4353-98fd-2e504de72c75 - If needed, attempt a repair : # qemu-img check -r all /dev/... - In any case, deactivate the LV : # lvchange -an /dev/... I followed this steps tens of times, and finding the LV and activating it was obvious and successful. Since yesterday, I'm finding some VMs one which these steps are not working : I can identify the symbolic link, but the SPM neither the host are able to find the LV device, thus can not LV-activate it : # lvchange -ay /dev/de2fdaa0-6e09-4dd2-beeb-1812318eb893/ce13d349-151e-4631-b600-c42b82106a8d Failed to find logical volume "de2fdaa0-6e09-4dd2-beeb-1812318eb893/ce13d349-151e-4631-b600-c42b82106a8d" Either I need two more coffees, either I may be missing a step or something to check. Looking at the SPM /dev/disk/* structure, it looks like very sound (I can see my three storage domains dm-name-* series of links). As the VM can nicely be ran and stopped, does the host activates something more before being launched? -- Nicolas ECARNOT

3 7

ovirt-node iso installs non-bootable OS
by Guillaume 05 Oct '17

05 Oct '17

----=_RainLoop_127_572554114.1507153165 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hello,=0A=0AI'm new to ovirt, I try it for the first time.=0AI downloaded= the iso ovirt-node-ng-installer-ovirt-4.1-2017100406.iso (http://jenkins= .ovirt.org/job/ovirt-node-ng_ovirt-4.1_build-artifacts-el7-x86_64/lastSuc= cessfulBuild/artifact/exported-artifacts/ovirt-node-ng-installer-ovirt-4.= 1-2017100406.iso)=0A=0AI installed it twice, but each time I have the sam= e problem.=0AWhen I reboot the PC after the install I can't start the OS,= I have the following error:=0A=0AFailed to open EFIcentosgrubx64.efi - N= ot Found=0AFailed to load image EFIcentosgrubx64.efi: Not Found=0Astart_i= mage() returned Not Found=0A=0AAm I the only one to have this error ?=0A= =0AIs there a way to solve this issue with the rescue iso choice ? or can= I download an older iso ?=0A=0AThanks,=0A=0AGuillaume ----=_RainLoop_127_572554114.1507153165 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable <!DOCTYPE html><html><head><meta http-equiv=3D"Content-Type" content=3D"t= ext/html; charset=3Dutf-8" /></head><body><div data-html-editor-font-wrap= per=3D"true" style=3D"font-family: arial, sans-serif; font-size: 13px;"><= div><div><div style=3D"font-family: arial, sans-serif;font-size: 13px">He= llo,<br><br>I'm new to ovirt, I try it for the first time.<br>I downloade= d the iso <a href=3D"http://jenkins.ovirt.org/job/ovirt-node-ng_ovirt-4.1= _build-artifacts-el7-x86_64/lastSuccessfulBuild/artifact/exported-artifac= ts/ovirt-node-ng-installer-ovirt-4.1-2017100406.iso">ovirt-node-ng-instal= ler-ovirt-4.1-2017100406.iso</a><br><br>I installed it twice, but each ti= me I have the same problem.<br>When I reboot the PC after the install I c= an't start the OS, I have the following error:<br><br>Failed to open \EFI= \centos\grubx64.efi - Not Found<br>Failed to load image \EFI\centos\grubx= 64.efi: Not Found<br>start_image() returned Not Found<br><br>Am I the onl= y one to have this error ?<br><br>Is there a way to solve this issue with= the rescue iso choice ? or can I download an older iso ?<br><br>Thanks,<= br><br>Guillaume<br><signature></signature> </div></div></div></div></bod= y></html> ----=_RainLoop_127_572554114.1507153165--

3 2

Gluster Performance
by Bryan Sockel 05 Oct '17

05 Oct '17

Is there any performance loss from your if your gluster replica 3 servers are not all the same configuration? Server 1 - Primary 16 X 1.2 TB 10k Drives - Raid 10 - Stripe 256k (2.5 Drives) 1 CPU - Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz 64 GB Memory Server 2 - Replica 8 X 6 TB 7.5 RPM Drives - Raid 10 - Trip 512 (3.5) 1 CPU - Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz 16 GB Memory Server 3 - Arbiter (Also Virtual machine node) 2 X 1.2 TB 10k Drives Raid 10 2 CPU - Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz 192 GB Memory Thanks

2 1

Organizing an event of oVirt in Myanmar
by Yan Naing Myint 04 Oct '17

04 Oct '17

Hello, We have planned an event named "The Tech Talk" on October 15, 2017. In the event we will mainly focus on - oVirt Virtualization - RAID & NFS - iSCSI In the event, we will use CentOS as main Linux distribution on which above mentioned services will be installed. The event is originally organized by Cyber Wings Co., Ltd here in Yangon, Myanmar. oVirt Myanmar Community is in association with them. Yet as a part of the event, I'm somehow promoting the oVirt alternatively. Here is the event page. https://www.facebook.com/events/120177198667868/? acontext=%7B%22ref%22%3A%2222%22%2C%22feed_story_type%22%3A% 2222%22%2C%22action_history%22%3A%22null%22%7D&pnref=story Agenda https://scontent.frgn1-1.fna.fbcdn.net/v/t1.0-9/22154155_1572685872788061_ 6765400324409071757_n.png?oh=83e2c9db6447296b6fde788b8634df57&oe=5A42295A Stickers printed here https://www.facebook.com/events/120177198667868/permalink/120228851996036/? ref=1&action_history=null Press Release in Myanmar Language describing about the event https://www.facebook.com/thevoicemyanmar.mm/posts/1635592309794355 We are hoping over 100 people will attend. Best, -- Yan Naing Myint CEO Server & Network Engineer Cyber Wings Co., Ltd http://cyberwings.asia 09799950510

1 0

Ovirt causing strange network issues?
by Derek Atkins 04 Oct '17

04 Oct '17

Hi, I'm at my wits end so I'm tossing this here in the hopes that SOMEONE will be able to help me. tl;dr: Ovirt is doing something on my network that is causing my fiber modem to go from 3-5ms to 300-1000+ms round trip times. I know it's ovirt because when I unplug ovirt from my network the issue goes away; when I plug it back in, the issue recurs. Long version: I've been running Ovirt 4.0.6 happily on CentOS 7.3 for several months on a single host machine. Indeed, the host had an uptime of 200+ days and was working great until approximately midnight, September 21/22 (just over a week ago). I was on an airplane halfway across the Atlantic at that time, so it wasn't anything I did. My network is configured as: fiber modem <-> edgerouter <-> switch <-> everything else ovirt is living in the "everything else" area. When I sit with a laptop connected to either the everything else range or even directly connected to the fiber modem, I run 'mtr' and see network times (starting at the fiber modem) that bounce all over the place. When I unplug ovirt I see consistent 3-5ms times. Plug it back in, voom, back up to badness. I've spent several hours plugging and unplugging different devices trying to isolate the issue. The only "device" that has any effect is my ovirt box. I have tried to debug this in several ways, but really the only thing that seems to have helped at all is shutting down all the VMs and the hosted engine. Once nothing else is running (but the host itself), only then does the network seem to return to normal. I'm really at my wits end on this; I have no idea what is causing this or what might have changed to cause the issue right at that time. I also can't imagine what ovirt is doing over the network that could cause the modem, two physical hops away, to lose its mind in this way. But my experiementation is definitely showing a direct correlation. Help!! -derek -- Derek Atkins 617-623-3745 derek(a)ihtfp.com www.ihtfp.com Computer and Internet Security Consultant

3 9