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OVN and change of mgmt network
by Gianluca Cecchi 26 Jan '21

26 Jan '21

Hello, I previously had OVN running on engine (as OVN provider with northd and northbound and southbound DBs) and hosts (with OVN controller). After changing mgmt ip of hosts (engine has retained instead the same ip), I executed again on them the command: vdsm-tool ovn-config <ip_of_engine> <nel_local_ip_of_host> Now I think I have to clean up some things, eg: 1) On engine where I get these lines below systemctl status ovn-northd.service -l . . . Sep 29 14:41:42 ovmgr1 ovsdb-server[940]: ovs|00005|reconnect|ERR|tcp: 10.4.167.40:37272: no response to inactivity probe after 5 seconds, disconnecting Oct 03 11:52:00 ovmgr1 ovsdb-server[940]: ovs|00006|reconnect|ERR|tcp: 10.4.167.41:52078: no response to inactivity probe after 5 seconds, disconnecting The two IPs are the old ones of two hosts It seems that a restart of the services has fixed... Can anyone confirm if I have to do anything else? 2) On hosts (there are 3 hosts with OVN on ip 10.4.192.32/33/34) where I currently have this output [root@ov301 ~]# ovs-vsctl show 3a38c5bb-0abf-493d-a2e6-345af8aedfe3 Bridge br-int fail_mode: secure Port "ovn-1dce5b-0" Interface "ovn-1dce5b-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.192.32"} Port "ovn-ddecf0-0" Interface "ovn-ddecf0-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.192.33"} Port "ovn-fd413b-0" Interface "ovn-fd413b-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.168.74"} Port br-int Interface br-int type: internal ovs_version: "2.7.2" [root@ov301 ~]# The IPs of kind 10.4.192.x are ok. But there is a left-over of an old host I initially used for tests, corresponding to 10.4.168.74, that now doesn't exist anymore How can I clean records for 1) and 2)? Thanks, Gianluca

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Re: VM templates
by Robert Tongue 26 Jan '21

26 Jan '21

I fixed my own issue, and for everyone else that may run into this, the issue was the fact that I created the first oVirt node VM inside VMware, and got it fully configured with all the software/disks/partitioning/settings, then cloned it to two more VMs. Then I ran the hosted-engine deployment and set up the cluster. I think it was because I used clones for each cluster node, and that confused things due to device/system identifiers. I rebuilt all 3 node VMs from scratch, and everything works perfectly now. Thanks for listening. ________________________________ From: Robert Tongue Sent: Monday, January 25, 2021 10:03 AM To: users <users(a)ovirt.org> Subject: VM templates Hello, Another weird issue over here. I have the latest oVirt running inside VMware Vcenter, as a proof of concept/testing platform. Things are working well finally, for the most part, however I am noticing strange behavior with templates, and deployed VMs from that template. Let me explain: I created a basic Ubuntu Server VM, captured that VM as a template, then deployed 4 VMs from that template. The deployment went fine; however I can only start 3 of the 4 VMs. If I shut one down one of the 3 that I started, I can then start the other one that refused to start, then the one I JUST shut down will then refuse to start. The error is: VM test3 is down with error. Exit message: Bad volume specification {'device': 'disk', 'type': 'disk', 'diskType': 'file', 'specParams': {}, 'alias': 'ua-2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'address': {'bus': '0', 'controller': '0', 'unit': '0', 'type': 'drive', 'target': '0'}, 'domainID': '804c6a0c-b246-4ccc-b3ab-dd4ceb819cea', 'imageID': '2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'poolID': '3208bbce-5e04-11eb-9313-00163e281c6d', 'volumeID': 'f514ab22-07ae-40e4-9146-1041d78553fd', 'path': '/rhev/data-center/3208bbce-5e04-11eb-9313-00163e281c6d/804c6a0c-b246-4ccc-b3ab-dd4ceb819cea/images/2dc7fbff-da30-485d-891f-03a0ed60fd0a/f514ab22-07ae-40e4-9146-1041d78553fd', 'discard': True, 'format': 'cow', 'propagateErrors': 'off', 'cache': 'none', 'iface': 'scsi', 'name': 'sda', 'bootOrder': '1', 'serial': '2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'index': 0, 'reqsize': '0', 'truesize': '2882392576', 'apparentsize': '3435134976'}. The underlying storage is GlusterFS, self-managed outside of oVirt. I can provide any logs needed, please let me know which. Thanks in advance.

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Replaced host but ovn complains of duplicate port
by Kevin Doyle 26 Jan '21

26 Jan '21

I had to rebuild a host. I first removed it from Ovirt then reinstalled the OS. I then used the same 192.xxx.xxx.207 IP as the old host. I then added it to Ovirt which seem to go OK. However I am seeing lots of ovn errors complaining that there was an existing port for the same IP Port ovn-47cc88-0 new port is ovn-af7f78-0 ovs-vsctl show 34c43e58-46f5-4217-8f2e-5801e1f2b9de Bridge br-int fail_mode: secure Port "ovn-24b972-0" Interface "ovn-24b972-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.204"} Port "ovn-ec1bbd-0" Interface "ovn-ec1bbd-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.201"} Port "ovn-47cc88-0" Interface "ovn-47cc88-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.207"} Port "ovn-d1e09d-0" Interface "ovn-d1e09d-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.203"} Port "ovn-f5ded7-0" Interface "ovn-f5ded7-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.202"} Port "ovn-1cb1b0-0" Interface "ovn-1cb1b0-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.206"} Port br-int Interface br-int type: internal Port "ovn-af7f78-0" Interface "ovn-af7f78-0" type: geneve options: {csum="true", key=flow, remote_ip="192.xxx.xxx.207"} error: "could not add network device ovn-af7f78-0 to ofproto (File exists)" ovs_version: "2.10.1" / var/log/ovs-vswitchd.log tunnel|WARN|ovn-af7f78-0: attempting to add tunnel port with same config as port 'ovn-47cc88-0' (::->192.xxx.xxx.207, key=flow, legacy_l2, dp port=2) 2021-01-26T18:03:38.128Z|69740|ofproto|WARN|br-int: could not add port ovn-af7f78-0 (File exists) 2021-01-26T18:03:38.128Z|69741|bridge|WARN|could not add network device ovn-af7f78-0 to ofproto (File exists) /var/log/messages Jan 26 18:03:37 xxxx05 kernel: device genev_sys_6081 entered promiscuous mode Jan 26 18:03:37 xxxx05 kernel: i40e 0000:3d:00.0 eno3: UDP port 6081 was not found, not deleting Jan 26 18:03:37 xxxx05 kernel: i40e 0000:3d:00.1 eno4: UDP port 6081 was not found, not deleting Jan 26 18:03:37 xxxx05 kernel: i40e 0000:3d:00.2 eno5: UDP port 6081 was not found, not deleting Jan 26 18:03:37 xxxx05 kernel: i40e 0000:3d:00.3 eno6: UDP port 6081 was not found, not deleting I can bring the host 192.xxx.xxx.107 down and the errors stop on the other hosts but ovn still has a port defined for 192.xxx.xxx.207 The question I have is how do I delete the old port definition ? Regards Kevin

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Re: oVirt initramfs regeneration
by Shantur Rathore 26 Jan '21

26 Jan '21

Have a look at this kickstart file for installing oVirt Node https://gist.github.com/jonathanelbailey/b2ba868d39491f4e6a7497010b0f6b18 On Mon, Jan 25, 2021 at 11:49 PM Robert Tongue <phunyguy(a)neverserio.us> wrote: > Is it possible to force an initramfs regeneration in oVirt Node 4.4.4? I > am doing some advanced partitioning and cannot seem to figure out how to > properly do that if it's even possible. Thanks. > > -phunyguy > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/7HE7Z6XYJP566… >

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Is there a plan for ovirt 4.5 and furture versions?
by Flashbang 26 Jan '21

26 Jan '21

We know that at this time of the past years, the beta version of the new ovirt version has been released, but this year there is still no news about ovirt 4.5. Red Hat has announced last year that ovirt and openstack will be integrated with openshift in the future. So, will there be ovirt 4.5 or ovirt 4.6? Is it worth building a new virtualization platform based on ovirt? https://www.redhat.com/es/blog/future-open-virtualization-here

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Is there a way hot to reserve MAC address ?
by Michal Mocnak 26 Jan '21

26 Jan '21

Hey Guys, is there a way how to reserve MAC address for VMs created from the pool ? I have a workaround via ansible playbook which works fine but I am wondering if there is any other solution how to achieve this. And btw if i use predefined instance type other than Custom there are no network interfaces in newly created machines. Is it right behavior ? Thank you so much !! Cheers -m

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'python-nftables' failed. There is a big problem with Firewalld and openvswitch on Centos 8.3
by Сергей Шопин 26 Jan '21

26 Jan '21

I have deployed a new cluster on versions: 3 Hosts: Centos 8.3 and last update Ovirt: 4.4.4.7-1.el8 Cluster properties: switch - OVS; Firewall - Firewalld During the initial deployment of the host in such a cluster, everything is successfully installed, all virtual networks and bridges are created, and the host is activated. But after that, Firewalld does not work correctly, for example, when executing the command firewall-cmd --reload Issued by: Error: COMMAND_FAILED: 'python-nftables' failed: JSON blob: {"nftables": [{"metainfo": {"json_schema_version": 1}}, {"add": {"table": {"family": "inet", "name": "firewalld_policy_drop"}}}, {"add": {"chain": {"family": "inet", "table": "firewalld_policy_drop", "name": "filter_input", "type": "filter", "hook": "input", "prio": 9, "policy": "drop"}}}, {"add": {"chain": {"family": "inet", "table": "firewalld_policy_drop", "name": "filter_forward", "type": "filter", "hook": "forward", "prio": 9, "policy": "drop"}}}, {"add": {"chain": {"family": "inet", "table": "firewalld_policy_drop", "name": "filter_output", "type": "filter", "hook": "output", "prio": 9, "policy": "drop"}}}, {"add": {"rule": {"family": "inet", "table": "firewalld_policy_drop", "chain": "filter_input", "expr": [{"match": {"left": {"ct": {"key": "state"}}, "op": "in", "right": {"set": ["established", "related"]}}}, {"accept": null}]}}}, {"add": {"rule": {"family": "inet", "table": "firewalld_policy_drop", "chain": "filter_forward", "expr": [{"match": {"left": {"ct": {"key": "state"}}, "op": "in", "right": {"set": ["established", "related"]}}}, {"accept": null}]}}}, {"add": {"rule": {"family": "inet", "table": "firewalld_policy_drop", "chain": "filter_output", "expr": [{"match": {"left": {"ct": {"key": "state"}}, "op": "in", "right": {"set": ["established", "related"]}}}, {"accept": null}]}}}]} Now all ansible-playbook ovirt starts to execute uncorrectly For example this error is thrown every time I try to reinstall the host: VDSM SMnode02 command CollectVdsNetworkDataAfterInstallationVDS failed: Internal JSON-RPC error: {'reason': ’management’} I understand that ovirt correctly executes scripts, and this problem is related to the applications Firewalld, openvswitch, NetworkManager. Is there some workaround so that at least ovirt can re-install hosts?

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Unable to ping host from VM's or VM's from host
by David Johnson 26 Jan '21

26 Jan '21

I have a brand new Ovirt 4.5 cluster on centos 8 and brand new hardware. I have a set of VM's, some of whom I have been able to connect to in the past, others that I have never been able to connect to other than with the SPICE console ui. Right now, I am unable to connect from outside my cluster to any of the VPN's other than through the SPICE console. Host IP: 192.168.2.188 Physical Address Example VM IP: 10.21.10.101 with vLAN tag Works: * I can connect between vm's on the same subnet on the same VM. When logged into 10.21.10.101 I can ping 10.21.10.100 Doesn't work: * I cannot connect from VM's to the host. * I cannot connect from the host to VM's PING 10.21.10.100 (10.21.10.100) 56(84) bytes of data. From <<internet gateway>> icmp_seq=1 Destination Host Unreachable * I cannot connect from the VM's to the internet gateway * I cannot connect to the VM's from other systems on the physical network "Destination Host Unreachable" To me it looks like the virtual bridge is misconfigured, but I can't figure out how to reconfigure it. Any assistance would be greatly appreciated. Regards, David Johnson

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oVirt initramfs regeneration
by Robert Tongue 26 Jan '21

26 Jan '21

Is it possible to force an initramfs regeneration in oVirt Node 4.4.4? I am doing some advanced partitioning and cannot seem to figure out how to properly do that if it's even possible. Thanks. -phunyguy

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Geographically-distrbuted Ovirt Cluster?
by Derek Atkins 25 Jan '21

25 Jan '21

Hi, Right now I run a 1-server hyperconverged hosted-engine deployment. Other than requiring systemwide downtime to perform host maintenance, it has worked fairly well for me over the past few years. However, after a couple power and upstream-network outages, there have been questions about the ability to "distribute the load", so to speak. Considering what our workload is (main git repo, wiki, email list + archives, etc), it can't easily be distributed by a periodic resync and DNS round robin like a static web site. To solve this distribution problem I was wondering if there might be some way to deploy a handful of physical servers in different geographic locations that work together to create an HE environment for guest VMs? My initial fear would be that it would require dedicated 1Gb (or higher) between the sites to move data? Let's say we do NOT have that level of connectivity. I saw something about geographic replication in Gluster? But that would seem to be more about replicating a local cluster to a remote cluster? I suspect the answer is: no, a cluster must all be physically co-located. But I figured I would ask the experts. Thanks all for your insights. -derek -- Derek Atkins 617-623-3745 derek(a)ihtfp.com www.ihtfp.com Computer and Internet Security Consultant

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