- Users - oVirt List Archives

[Cannot edit VM. Maximum number of sockets exceeded.]
by Matthias Leopold 09 Jan '19

09 Jan '19

Hi, when a user is managing a "higher number" (couldn't find the exact number yet, roughly >10) of VMs in VM Portal and wants to edit a VM he gets a "[Cannot edit VM. Maximum number of sockets exceeded.]" error message in the browser, which I also see in engine.log. I couldn't find the reason for this. I'm using squid as a SPICE Proxy at cluster level. oVirt version is 4.2.7, can anybody help me? thx matthias

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ISCSI Domain & LVM
by tehnic＠take3.ro 09 Jan '19

09 Jan '19

Hello all, i have a question regarding this note in ovirt storage documentation: **Important:** If you are using block storage and you intend to deploy virtual machines on raw devices or direct LUNs and to manage them with the Logical Volume Manager, you must create a filter to hide the guest logical volumes. This will prevent guest logical volumes from being activated when the host is booted, a situation that could lead to stale logical volumes and cause data corruption. What does "you must create a filter to hide the guest logical volumes" exactly mean? I assume i have to set some filter in lvm.conf on all ovirt hosts, but im not sure about what to filter? What i already saw is that after creating the ISCSI domain and cloning/moving/creating virtual machines on it there are new PVs and LVs visible on the ovirt hosts having an object UUID in the name (output from "pvs" and "lvs" commands). Is this expected behavior or do i have to filter exactly this ones by allowing only local disks to be scanned for PVs/LVs? Or do i have to setup filter to allow only local disks + ISCSI disks (in my case /dev/sd?) to be scanned for PVs/LVs? I noticed too that after detaching and removing the ISCSI domain i still have UUID PVs. They all show up with "input/output error" in the output of "pvs" and stay there until i reboot the ovirt hosts. On my ISCSI target system i already set the correct lvm filters so that "targetcli" is happy after reboot. Thank you! Happy new year, Robert

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Shutdown VMs when Nobreak is on Battery
by Vinícius Ferrão 08 Jan '19

08 Jan '19

Hello, I would like to know if oVirt support VMs shutdown when a battery threshold on the nobreak device is reached. There are some fencing agents for APC devices, so I’m hoping this is supported. If not, how are you guys doing this kind of thing? A separate device or VM in the datacenter to issue the shutdown commands? Thanks,

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oVirt Storage questions
by michael＠wanderingmad.com 08 Jan '19

08 Jan '19

From previous thread about gluster issues, things seem to be running much better than before, and it has raised a few questions that I can't seem to find any answers to: Setup: 3 hyperconverged nodes each node has 1x 1tb SSD and 1x 500gb nVME drive each node is connected via ethernet and also by a 40gb infiniband connection for the gluster replication. Questions: 1. I created a 3tb VDO drive on the SSD and a 1.3tb VDO Drive on the nVME drive with a 1Gb cache on each server and I enabled the RDMA transport. a. Did I lose anything by doing the whole process manually? Since I did it like that, things seem to run MUCH better so far, rebooting nodes the gluster resyncs almost instantly and storage seems faster also. b. Is there a way to split out the gluster traffic from the normal ovirt traffic (VM and cluster communication)? originally I had separate names for each node for the gluster network and it WAS split, but if I ever reset a gluster node, the name got changed. What I did now is just put in a hosts file on each node that sends all traffic over the infiniband, but I don't feel like that's optimal. I was unable to add in the separate gluster names in the configuration as they were not part of the existing cluster. c. Why does the hyper-connverged wizard not let you adjust the VDO cache size, the transport type, or use VDO to "over-subscribe" the drive sizes like I did manually? 2. I wanted to add more space in the near future, would it be better to create a RAID0 with the new drives, or just use them as another separate storage location?

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Unable to add storage domain
by michael＠wanderingmad.com 08 Jan '19

08 Jan '19

1. Created a lv on a VDO device, mounted on /gluster_bricks/brick 2. Created a new gluster brick on /gluster_bricks/brick/brick 3. Unable to add them new a new storage domain or import it. get a bunch of "finished disconnecting storage..." errors and nothing happens I've lost 30+ VMs due to previous issues with gluster deployment wizard, so I created drives manually to match settings from wizard, totally screwed now.

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move 'ovirtmgmt' bridge to a bonded NIC team
by Shawn Southern 08 Jan '19

08 Jan '19

We've recently added additional NICs to our oVirt nodes, and want to move the ovirtmgmt interface to one of the bonded interfaces, away from the single ethernet port currently used. This is to provide redundant connectivity to the nodes. I've not had any luck finding documentation on how to do this. If we change it manually by editing files in /etc/sysconfig/network-scripts, VDSM simply changes everything back. I'm just looking to be pointed in the right direction here. Thanks!

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VM Portal is currently having some issues
by Arnaud DEBEC 08 Jan '19

08 Jan '19

Hi, When opening the web-ui with the admin@internal user, I get the message "Sorry, VM Portal is currently having some issues". Back to the admin portal > Events, nothing has been logged. Nothing in /var/log/ovirt-engine/ui.log, server.log or engine.log either. Any suggestion?

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Removing SSL 3 from port 16514
by John Nguyen 08 Jan '19

08 Jan '19

Hello, I was hoping to remove SSL 3 from 16514/tcp. I’m running Ovirt 4.2.0.2-1el7.centos and that port accepts both TSL 1.2 and SSL 3. Would editing libvirtd.conf and restarting libvirt on the hosts be the best way? I worry that it maybe overwritten the next time vdsm gets updated. #vi /etc/libvirt/libvirtd.conf tls_priority="NORMAL:!VERS-SSL3.0" Any help would be appreciated, Thanks John

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migrating to Hosted Engine failed
by maoz zadok 08 Jan '19

08 Jan '19

Hello, *oVirt Node: 4.2.7.1* I'm trying to migrate to a hosted engine on an existing cluster. I following: https://www.ovirt.org/documentation/self-hosted/chap-Migrating_from_Bare_Me… or: https://www.ovirt.org/develop/developer-guide/engine/migrate-to-hosted-engi… <https://www.ovirt.org/develop/developer-guide/engine/migrate-to-hosted-engi…> in both cases, it waits for the guest to be up until falling with an error I can see that it added some record to /etc/host and the guest is up. I was able to connect to the guest with ssh from the host that runs the hosted-engine deployment. after many retries, the host removes the guest and throw the error. also now the host cannot be activated back and throw following error when tring to activate: > VDSM kvm7 command Get Host Capabilities failed: General SSLEngine problem [ ERROR ] fatal: [localhost]: FAILED! => {"ansible_facts": {"ovirt_hosts": [{"address": "kvm7.replaceddomain.com", "affinity_labels": [], "auto_numa_status": "unknown", "certificate": {"organization": " replaceddomain.com", "subject": "O=replaceddomain.com,CN= kvm7.replaceddomain.com"}, "cluster": {"href": "/ovirt-engine/api/clusters/49af9e16-1250-11e9-ba8c-00163e4e185e", "id": "49af9e16-1250-11e9-ba8c-00163e4e185e"}, "comment": "", "cpu": {"speed": 0.0, "topology": {}}, "device_passthrough": {"enabled": false}, "devices": [], "external_network_provider_configurations": [], "external_status": "ok", "hardware_information": {"supported_rng_sources": []}, "hooks": [], "href": "/ovirt-engine/api/hosts/18517a0d-f264-4fd7-a191-c4a1f035da94", "id": "18517a0d-f264-4fd7-a191-c4a1f035da94", "katello_errata": [], "kdump_status": "unknown", "ksm": {"enabled": false}, "max_scheduling_memory": 0, "memory": 0, "name": "kvm7.replaceddomain.com", "network_attachments": [], "nics": [], "numa_nodes": [], "numa_supported": false, "os": {"custom_kernel_cmdline": ""}, "permissions": [], "port": 54321, "power_management": {"automatic_pm_enabled": true, "enabled": false, "kdump_detection": true, "pm_proxies": []}, "protocol": "stomp", "se_linux": {}, "spm": {"priority": 5, "status": "none"}, "ssh": {"fingerprint": "SHA256:FL4Drh9DQxHFwyQQ9LXEyNjex62LBZ6c4+4O09LoTWg", "port": 22}, "statistics": [], "status": "install_failed", "storage_connection_extensions": [], "summary": {"total": 0}, "tags": [], "transparent_huge_pages": {"enabled": false}, "type": "ovirt_node", "unmanaged_networks": [], "update_available": false}]}, "attempts": 120, "changed": false, "deprecations": [{"msg": "The 'ovirt_hosts_facts' module is being renamed 'ovirt_host_facts'", "version": 2.8}]} [ INFO ] TASK [Fetch logs from the engine VM]

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integrate billing system for ovirt
by du_hongyu＠yeah.net 07 Jan '19

07 Jan '19

hi I want to integrate billing system for ovirt, but I can not find any information, can you give me some suggestion? Regards Hongyu Du

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