January 2020 - Users - oVirt List Archives

[ANN] oVirt 4.3.9 First Release Candidate is now available for testing
by Sandro Bonazzola 08 Feb '20

08 Feb '20

The oVirt Project is pleased to announce the availability of the oVirt 4.3.9 First Release Candidate for testing, as of January 30th, 2020. This update is a release candidate of the nineth in a series of stabilization updates to the 4.3 series. This is pre-release software. This pre-release should not to be used in production. This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 7.7 or later (but <8) * CentOS Linux (or similar) 7.7 or later (but <8) This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 7.7 or later (but <8) * CentOS Linux (or similar) 7.7 or later (but <8) * oVirt Node 4.3 (available for x86_64 only) has been built consuming CentOS 7.7 Release See the release notes [1] for known issues, new features and bugs fixed. Notes: - oVirt Appliance is already available - oVirt Node will be available soon Additional Resources: * Read more about the oVirt 4.3.9 release highlights: http://www.ovirt.org/release/4.3.9/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4.3.9/ [2] http://resources.ovirt.org/pub/ovirt-4.3-pre/iso/ -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/>*Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

2 1

oVirt MAC Pool question
by Vrgotic, Marko 06 Feb '20

06 Feb '20

Dear oVirt, While investigating and DHCP & DDNS collision issues between two VM servers from different oVirt clusters, I noticed that oVirt assigns same default MAC range for each of it’s managed clusters. Question1: Does oVirt-Engine keep separate place in DB or … for MAC addresses assigned per cluster or it keeps them all in same place? Question2: Would there be an harming effect on existing VMs if the default mac pool would be changed? Additional info: Self Hosted ovirt-engine – 4.3.4 and 4.3.7 ----- kind regards/met vriendelijke groeten Marko Vrgotic ActiveVideo

3 10

Deploy Hosted Engine fails at "Set VLAN ID at datacenter level"
by Guillaume Pavese 06 Feb '20

06 Feb '20

Hi, Trying to deploy ovirt 4.3-stable Hosted Engine with cockpit This fails with the following : [ INFO ] TASK [ovirt.hosted_engine_setup : Set VLAN ID at datacenter level] [ ERROR ] Exception: Entity 'None' was not found. [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "Entity 'None' was not found."} Any idea? Guillaume Pavese Ingénieur Système et Réseau Interactiv-Group -- Ce message et toutes les pièces jointes (ci-après le “message”) sont établis à l’intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le détruire et d’en avertir immédiatement l’expéditeur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L’internet ne permettant pas d’assurer l’intégrité de ce message . Interactiv-group (et ses filiales) décline(nt) toute responsabilité au titre de ce message, dans l’hypothèse ou il aurait été modifié. IT, ES, UK. <https://interactiv-group.com/disclaimer.html>

7 23

Understanding ovirt memory management which appears incorrect
by divan＠santanas.co.za 03 Feb '20

03 Feb '20

Hi All, A question regarding memory management with ovirt. I know memory can be complicated hence I'm asking the experts. :) Two examples of where it looks - to me - that memory management from ovirt perspective is incorrect. This is resulting in us not getting as much out of a host as we'd expect. ## Example 1: host: dev-cluster-04 I understand the mem on the host to be: 128G total (physical) 68G used 53G available 56G buff/cache I understand therefore 53G should still be available to allocate (approximately, minus a few things). ``` DEV [root@dev-cluster-04:~] # free -m total used free shared buff/cache available Mem: 128741 68295 4429 4078 56016 53422 Swap: 12111 1578 10533 DEV [root@dev-cluster-04:~] # cat /proc/meminfo MemTotal: 131831292 kB MemFree: 4540852 kB MemAvailable: 54709832 kB Buffers: 3104 kB Cached: 5174136 kB SwapCached: 835012 kB Active: 66943552 kB Inactive: 5980340 kB Active(anon): 66236968 kB Inactive(anon): 5713972 kB Active(file): 706584 kB Inactive(file): 266368 kB Unevictable: 50036 kB Mlocked: 54132 kB SwapTotal: 12402684 kB SwapFree: 10786688 kB Dirty: 812 kB Writeback: 0 kB AnonPages: 67068548 kB Mapped: 143880 kB Shmem: 4176328 kB Slab: 52183680 kB SReclaimable: 49822156 kB SUnreclaim: 2361524 kB KernelStack: 20000 kB PageTables: 213628 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 78318328 kB Committed_AS: 110589076 kB VmallocTotal: 34359738367 kB VmallocUsed: 859104 kB VmallocChunk: 34291324976 kB HardwareCorrupted: 0 kB AnonHugePages: 583680 kB CmaTotal: 0 kB CmaFree: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 621088 kB DirectMap2M: 44439552 kB DirectMap1G: 91226112 kB ``` The ovirt engine, compute -> hosts view shows s4-dev-cluster-01 as 93% memory utilised. Clicking on the node says: Physical Memory: 128741 MB total, 119729 MB used, 9012 MB free So ovirt engine says 9G free. The OS reports 4G free but 53G available. Surely ovirt should be looking at available memory? This is a problem, for instance, when trying to run a VM, called dev-cassandra-01, with mem size 24576, max mem 24576 and mem guarantee set to 10240 on this host it fails with: ``` Cannot run VM. There is no host that satisfies current scheduling constraints. See below for details: The host dev-cluster-04.fnb.co.za did not satisfy internal filter Memory because its available memory is too low (19884 MB) to run the VM. ``` To me this looks blatantly wrong. The host has 53G available according to free -m. Guessing I'm missing something, unless this is some sort of bug? versions: ``` engine: 4.3.7.2-1.el7 host: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: CentOS Linux 7 (Core) Kernel Version: 3.10.0 - 957.12.1.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.3.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.7 VDSM Version: vdsm-4.30.13-1.el7 SPICE Version: 0.14.0 - 6.el7_6.1 GlusterFS Version: [N/A] CEPH Version: librbd1-10.2.5-4.el7 Open vSwitch Version: openvswitch-2.10.1-3.el7 Kernel Features: PTI: 1, IBRS: 0, RETP: 1, SSBD: 3 VNC Encryption: Disabled ``` ## Example 2: A ovirt host with two VMs: According to the host, it has 128G of physical memory of which 56G is used, 69G is buff/cache and 65G is available. As is shown here: ``` LIVE [root@prod-cluster-01:~] # cat /proc/meminfo MemTotal: 131326836 kB MemFree: 2630812 kB MemAvailable: 66573596 kB Buffers: 2376 kB Cached: 5670628 kB SwapCached: 151072 kB Active: 59106140 kB Inactive: 2744176 kB Active(anon): 58099732 kB Inactive(anon): 2327428 kB Active(file): 1006408 kB Inactive(file): 416748 kB Unevictable: 40004 kB Mlocked: 42052 kB SwapTotal: 4194300 kB SwapFree: 3579492 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 56085040 kB Mapped: 121816 kB Shmem: 4231808 kB Slab: 65143868 kB SReclaimable: 63145684 kB SUnreclaim: 1998184 kB KernelStack: 25296 kB PageTables: 148336 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 69857716 kB Committed_AS: 76533164 kB VmallocTotal: 34359738367 kB VmallocUsed: 842296 kB VmallocChunk: 34291404724 kB HardwareCorrupted: 0 kB AnonHugePages: 55296 kB CmaTotal: 0 kB CmaFree: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 722208 kB DirectMap2M: 48031744 kB DirectMap1G: 87031808 kB LIVE [root@prod-cluster-01:~] # free -m total used free shared buff/cache available Mem: 128248 56522 2569 4132 69157 65013 Swap: 4095 600 3495 ``` However the compute -> hosts ovirt screen shows this node as 94% memory. Clicking compute -> hosts -> prod-cluster-01 -> general says: Physical Memory: 128248 MB total, 120553 MB used, 7695 MB free Swap Size: 4095 MB total, 600 MB used, 3495 MB free The physical memory in the above makes no sense to me. Unless it includes caches which I would think it shouldn't. This host has just two VMs: LIVE [root@prod-cluster-01:~] # virsh -c qemu:///system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf list Id Name State ---------------------------------------------------- 35 prod-box-18 running 36 prod-box-11 running Moreover each VM has 32G memory set, in every possible place - from what I can see. ``` LIVE [root@prod-cluster-01:~] # virsh -c qemu:///system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf dumpxml prod-box-11|grep -i mem <ovirt-vm:memGuaranteedSize type="int">32768</ovirt-vm:memGuaranteedSize> <ovirt-vm:minGuaranteedMemoryMb type="int">32768</ovirt-vm:minGuaranteedMemoryMb> <memory unit='KiB'>33554432</memory> <currentMemory unit='KiB'>33554432</currentMemory> <cell id='0' cpus='0-27' memory='33554432' unit='KiB'/> <suspend-to-mem enabled='no'/> <model type='qxl' ram='65536' vram='32768' vgamem='16384' heads='1' primary='yes'/> <memballoon model='virtio'> </memballoon> ``` prod-box-11 is however set as high performance VM. That could cause a problem. Same for the other VM: ``` LIVE [root@prod-cluster-01:~] # virsh -c qemu:///system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf dumpxml prod-box-18|grep -i mem <ovirt-vm:memGuaranteedSize type="int">32768</ovirt-vm:memGuaranteedSize> <ovirt-vm:minGuaranteedMemoryMb type="int">32768</ovirt-vm:minGuaranteedMemoryMb> <memory unit='KiB'>33554432</memory> <currentMemory unit='KiB'>33554432</currentMemory> <cell id='0' cpus='0-27' memory='33554432' unit='KiB'/> <suspend-to-mem enabled='no'/> <model type='qxl' ram='65536' vram='32768' vgamem='16384' heads='1' primary='yes'/> <memballoon model='virtio'> </memballoon> ``` So I understand that two VMs each having allocated 32G of ram should consume approx 64G of ram on the host. The host has 128G of ram, so usage should be at approx 50%. However ovirt is reporting 94% usage. Versions: ``` engine: 4.3.5.5-1.el7 host: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: CentOS Linux 7 (Core) Kernel Version: 3.10.0 - 957.10.1.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.3.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.6 VDSM Version: vdsm-4.30.11-1.el7 SPICE Version: 0.14.0 - 6.el7_6.1 GlusterFS Version: [N/A] CEPH Version: librbd1-10.2.5-4.el7 Open vSwitch Version: openvswitch-2.10.1-3.el7 Kernel Features: PTI: 1, IBRS: 0, RETP: 1 VNC Encryption: Disabled ``` Thanks for any insights! -- Divan Santana https://divansantana.com

5 7

Two host cluster without hyperconverged
by Göker Dalar 02 Feb '20

02 Feb '20

Hello everyone, I want to get an idea in this topic. I have two servers with the same capabilities and 8 same physical disc per node. I want to setup a cluster using a redundant disc.I dont have another server for gluster hyperconverged . How i should build for this structure ? Thanks in advance, Göker

2 1

Gluster Heal Issue
by Christian Reiss 01 Feb '20

01 Feb '20

Hey folks, in our production setup with 3 nodes (HCI) we took one host down (maintenance, stop gluster, poweroff via ssh/ovirt engine). Once it was up the gluster hat 2k healing entries that went down in a matter on 10 minutes to 2. Those two give me a headache: [root@node03:~] # gluster vol heal ssd_storage info Brick node01:/gluster_bricks/ssd_storage/ssd_storage <gfid:a121e4fb-0984-4e41-94d7-8f0c4f87f4b6> <gfid:6f8817dc-3d92-46bf-aa65-a5d23f97490e> Status: Connected Number of entries: 2 Brick node02:/gluster_bricks/ssd_storage/ssd_storage Status: Connected Number of entries: 0 Brick node03:/gluster_bricks/ssd_storage/ssd_storage <gfid:a121e4fb-0984-4e41-94d7-8f0c4f87f4b6> <gfid:6f8817dc-3d92-46bf-aa65-a5d23f97490e> Status: Connected Number of entries: 2 No paths, only gfid. We took down node2, so it does not have the file: [root@node01:~] # md5sum /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 75c4941683b7eabc223fc9d5f022a77c /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 [root@node02:~] # md5sum /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 md5sum: /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6: No such file or directory [root@node03:~] # md5sum /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 75c4941683b7eabc223fc9d5f022a77c /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 The other two files are md5-identical. These flags are identical, too: [root@node01:~] # getfattr -d -m . -e hex /gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 getfattr: Removing leading '/' from absolute path names # file: gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 security.selinux=0x73797374656d5f753a6f626a6563745f723a676c7573746572645f627269636b5f743a733000 trusted.afr.dirty=0x000000000000000000000000 trusted.afr.ssd_storage-client-1=0x0000004f0000000100000000 trusted.gfid=0xa121e4fb09844e4194d78f0c4f87f4b6 trusted.gfid2path.d4cf876a215b173f=0x62653331383633382d653861302d346336642d393737642d3761393337616138343830362f38366461303238392d663734662d343230302d393238342d3637386537626437363139352e31323030 trusted.glusterfs.mdata=0x010000000000000000000000005e349b1e000000001139aa2a000000005e349b1e000000001139aa2a000000005e34994900000000304a5eb2 getfattr: Removing leading '/' from absolute path names # file: gluster_bricks/ssd_storage/ssd_storage/.glusterfs/a1/21/a121e4fb-0984-4e41-94d7-8f0c4f87f4b6 security.selinux=0x73797374656d5f753a6f626a6563745f723a676c7573746572645f627269636b5f743a733000 trusted.afr.dirty=0x000000000000000000000000 trusted.afr.ssd_storage-client-1=0x0000004f0000000100000000 trusted.gfid=0xa121e4fb09844e4194d78f0c4f87f4b6 trusted.gfid2path.d4cf876a215b173f=0x62653331383633382d653861302d346336642d393737642d3761393337616138343830362f38366461303238392d663734662d343230302d393238342d3637386537626437363139352e31323030 trusted.glusterfs.mdata=0x010000000000000000000000005e349b1e000000001139aa2a000000005e349b1e000000001139aa2a000000005e34994900000000304a5eb2 Now, I dont dare simply proceeding withouth some advice. Anyone got a clue on who to resolve this issue? File #2 is identical to this one, from a problem point of view. Have a great weekend! -Chris. -- with kind regards, mit freundlichen Gruessen, Christian Reiss

4 6

Ovirt-engine-ha cannot to see live status of Hosted Engine
by asm＠pioner.kz 01 Feb '20

01 Feb '20

Good day for all. I have some issues with Ovirt 4.2.6. But now the main this of it: I have two Centos 7 Nodes with same config and last Ovirt 4.2.6 with Hostedengine with disk on NFS storage. Also some of virtual machines working good. But, when HostedEngine running on one node (srv02.local) everything is fine. After migrating to another node (srv00.local), i see that agent cannot to check livelinness of HostedEngine. After few minutes HostedEngine going to reboot and after some time i see some situation. After migration to another node (srv00.local) all looks OK. hosted-engine --vm-status commang when HosterEngine on srv00 node: --== Host 1 status ==-- conf_on_shared_storage : True Status up-to-date : True Hostname : srv02.local Host ID : 1 Engine status : {"reason": "vm not running on this host", "health": "bad", "vm": "down_unexpected", "detail": "unknown"} Score : 0 stopped : False Local maintenance : False crc32 : ecc7ad2d local_conf_timestamp : 78328 Host timestamp : 78328 Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=78328 (Tue Sep 18 12:44:18 2018) host-id=1 score=0 vm_conf_refresh_time=78328 (Tue Sep 18 12:44:18 2018) conf_on_shared_storage=True maintenance=False state=EngineUnexpectedlyDown stopped=False timeout=Fri Jan 2 03:49:58 1970 --== Host 2 status ==-- conf_on_shared_storage : True Status up-to-date : True Hostname : srv00.local Host ID : 2 Engine status : {"reason": "failed liveliness check", "health": "bad", "vm": "up", "detail": "Up"} Score : 3400 stopped : False Local maintenance : False crc32 : 1d62b106 local_conf_timestamp : 326288 Host timestamp : 326288 Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=326288 (Tue Sep 18 12:44:21 2018) host-id=2 score=3400 vm_conf_refresh_time=326288 (Tue Sep 18 12:44:21 2018) conf_on_shared_storage=True maintenance=False state=EngineStarting stopped=False Log agent.log from srv00.local: MainThread::INFO::2018-09-18 12:40:51,749::states::779::ovirt_hosted_engine_ha.agent.hosted_engine.HostedE ngine::(consume) VM is powering up.. MainThread::INFO::2018-09-18 12:40:52,052::hosted_engine::491::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(_monitoring_loop) Current state EngineStarting (score: 3400) MainThread::INFO::2018-09-18 12:41:01,066::states::779::ovirt_hosted_engine_ha.agent.hosted_engine.HostedE ngine::(consume) VM is powering up.. MainThread::INFO::2018-09-18 12:41:01,374::hosted_engine::491::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(_monitoring_loop) Current state EngineStarting (score: 3400) MainThread::INFO::2018-09-18 12:41:11,393::state_machine::169::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(refresh) Global metadata: {'maintenance': False} MainThread::INFO::2018-09-18 12:41:11,393::state_machine::174::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(refresh) Host srv02.local.pioner.kz (id 1): {'conf_on_shared_storage': True, 'extra': 'meta data_parse_version=1\nmetadata_feature_version=1\ntimestamp=78128 (Tue Sep 18 12:40:58 2018)\nhost-id=1\ns core=0\nvm_conf_refresh_time=78128 (Tue Sep 18 12:40:58 2018)\nconf_on_shared_storage=True\nmaintenance=Fa lse\nstate=EngineUnexpectedlyDown\nstopped=False\ntimeout=Fri Jan 2 03:49:58 1970\n', 'hostname': 'srv02. local.pioner.kz', 'alive': True, 'host-id': 1, 'engine-status': {'reason': 'vm not running on this host', 'health': 'bad', 'vm': 'down_unexpected', 'detail': 'unknown'}, 'score': 0, 'stopped': False, 'maintenance ': False, 'crc32': 'e18e3f22', 'local_conf_timestamp': 78128, 'host-ts': 78128} MainThread::INFO::2018-09-18 12:41:11,393::state_machine::177::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(refresh) Local (id 2): {'engine-health': {'reason': 'failed liveliness check', 'health': 'b ad', 'vm': 'up', 'detail': 'Up'}, 'bridge': True, 'mem-free': 12763.0, 'maintenance': False, 'cpu-load': 0 .0364, 'gateway': 1.0, 'storage-domain': True} MainThread::INFO::2018-09-18 12:41:11,393::states::779::ovirt_hosted_engine_ha.agent.hosted_engine.HostedE ngine::(consume) VM is powering up.. MainThread::INFO::2018-09-18 12:41:11,703::hosted_engine::491::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(_monitoring_loop) Current state EngineStarting (score: 3400) MainThread::INFO::2018-09-18 12:41:21,716::states::779::ovirt_hosted_engine_ha.agent.hosted_engine.HostedE ngine::(consume) VM is powering up.. MainThread::INFO::2018-09-18 12:41:22,020::hosted_engine::491::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(_monitoring_loop) Current state EngineStarting (score: 3400) MainThread::INFO::2018-09-18 12:41:31,033::states::779::ovirt_hosted_engine_ha.agent.hosted_engine.HostedE ngine::(consume) VM is powering up.. MainThread::INFO::2018-09-18 12:41:31,344::hosted_engine::491::ovirt_hosted_engine_ha.agent.hosted_engine. HostedEngine::(_monitoring_loop) Current state EngineStarting (score: 3400) As we can see, agent thinking that HostedEngine just in powering up mode. I cannot to do anythink with it. I allready reinstalled many times srv00 node without success. One time i even has to uninstall ovirt* and vdsm* software. Also here one interesting point, after installing just "yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release42.rpm" on this node i try to install this node from engine web interface with "Deploy" action. But, installation was unsuccesfull, before i didnt install ovirt-hosted-engine-ha on this node. I dont see in documentation that its need bofore installation of new hosts. But this is for information and checking. After installing ovirt-hosted-engine-ha node was installed with HostedEngine support. But the main issue not changed. Thanks in advance for help. BR, Alexandr

3 5

Reimport VMs after lost Engine with broken Backup
by Vinícius Ferrão 31 Jan '20

31 Jan '20

Hello, I’m with a scenario with a lost hosted-engine. For reasons unknown the backup is broken and I’ve tried everything: redeploy with backup file, deploy a new one and them restore the backup. Changed the HE storage domain in both cases just be sure. Reinstalled one of the hosts just to be safe but nothing worked. So I just deployed a brand new engine and now I want to import back the VM’s. My scenario right now is: ovirt1 brand new with the new VM in a new storage domain. ovirt2 have production VMs running without any issue. So my questions right now: * What happens if I just add the ovirt2 machine to the new engine? It will reboot or will add everything back: storage, networks etc? My plan right now would be: * Reconfigure the DC and the cluster. * Readd all the networks. * Reattach the storage domains. * Recreate all the VM”s attaching it’s disks. Is there’s something that I can do better to mitigate the work? Thanks,

1 2

Re: High level network advice request
by Richard Nilsson 31 Jan '20

31 Jan '20

Thanks so much for your reply Robert! I like your set-up alot, that's where I'm going too actually. But now I have only one node, I'm trying to learn very basic setup with just the one for the moment (Because I have it running after years of trying! It will take a few weeks and another motherboard / rebuild before I have the second node, I'll get there soon). I've just learned (I think) that I can't sync new logical networks with the host, because I can't put the only host in maintenance mode...I thought that there might be a way with cli and restarts and all that but lo, there no point, I will have another node in a few weeks or months :) That's okay, I'm trying to work out why I can't access my new test server from WAN. I use split dns with pfsense and haproxy reverse redirects. I can get to the server test pages from LAN via the pfSense dns resolution (LAN) but the reverse redirects are not working from WAN. I don't know what next step to take to debug the problem. The engine is accessible from WAN, so I think it should work for the vm server, which is also on the default ovirt management network and uses all defaults like the hosted engine. I suspect that there is a security setting on the engine, logical network or maybe the server? What should I check next? My singe node, is also in the same condition, which may be instructive to a noob like me...the node I can reach from the LAN but not the WAN. So the engine is a special case. Do I need to create certificates on the vm webserver? I'd like to see if I can set-up a NextCloud server after trying a SuiteCRM server. But I started with fedora 31 server and a very basic lamp stack to limit variables... Thanks in advance. Let me know if I can ever help you with anything! I'm an Architect, but a real one; not IT but bricks and all that :) These are the links: engine.metrodesignoffice.com mdowebserver.metrodesignoffice.com

2 1

0virt VMs status down after host reboot
by Eugène Ngontang 31 Jan '20

31 Jan '20

Hi all, I've set up an infrastructure with OVirt, using self-hosted engine. I use some ansible scripts from my Virtualization Host (the physical machine), to bootstrap the hosted engine, and create a set of virtual machines on which I deploy a k8s cluster. The deployment goes well, and everything is OK. Now I'm doing some reboot tests, and when I reboot the physical server, only the hosted-engine vm is up after the reboot, the rest of VMs and thus the k8s cluster are down. Had someone here ever experienced this issue? What can cause it and how to automate the virtual machines startup in RHVE/Ovirt? Thanks. Regards, Eugene -- LesCDN <http://lescdn.com> engontang(a)lescdn.com ------------------------------------------------------------ *Aux hommes il faut un chef, et au* * chef il faut des hommes!L'habit ne fait pas le moine, mais lorsqu'on te voit on te juge!*

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