- Users - oVirt List Archives

Intel Cascade Lake Family supported
by Ramon Sierra 23 Nov '20

23 Nov '20

Hi, We are planning to upgrade our cluster hardware. We would like to know if Intel Cascade Lake CPUs are supported on ovirt 4.4.3. Any recommendation is very welcome. Regards, Ramon

3 2

oVirt Engine LDAP aaa - rfc2307bis issues
by Jake R 23 Nov '20

23 Nov '20

Hi, I have LDAP with rfc2307bis schema - I have posixGroup, with members defined as FDNs under the member attribute. Currently, if I login to oVirt via the AAA extension. then my groups are not enumerated. The LDAP searches (recorded on the LDAP server) are: slapd[1503]: conn=7876 op=2 SRCH base="dc=example,dc=com" scope=2 deref=0 filter="(&(objectClass=posixGroup)(memberUid=jreynolds))" slapd[1503]: conn=7876 op=2 SRCH attr=entryUUID cn description slapd[1503]: conn=7871 op=2 SRCH base="dc=example,dc=com" scope=2 deref=0 filter="(&(|(objectClass=groupOfUniqueNames)(objectClass=posixGroup))(uniqueMember:uniqueMemberMatch:=cn=jreynolds,ou=users,dc=example,dc=com))" slapd[1503]: conn=7871 op=2 SRCH attr=entryUUID cn description This returns no results, as the search needs to search for 'member' attribute, with an FDN. The issue looks to be inherited from the simple.properties file (regardless of if I use rfc2307, rfc2307-openldap profile), with the line: search.simple-resolve-groups-member.search-request.filter = &${seq:simple_filterGroupObject}(${seq:simple_attrGroupMemberDN}=${seq:_simple_dn_encoded}) I can fix the issue by replacing "${seq:simple_attrGroupMemberDN}=" with "member=", but this feels pretty hacky. I cannot find where this variable is defined, nor how to change it. Is the correct way to do this to create a new profile that overwrites the filter value? Or am I doing something wrong? I don't think my LDAP schema is particularly unusual, as far as I'm aware it complies with rfc2307bis spec. Thanks, Jake

2 1

Can't find storage server connection
by francesco＠shellrent.com 23 Nov '20

23 Nov '20

Hi all, I'm using oVirt SDK python for retrieving info about storage domain, in several hosts (centos7/ovirt4.3 and centos8/ovirt4.4), but the script exits with the following error in some of them: Traceback (most recent call last): File "get_uuid.py", line 70, in <module> storage_domain = sds_service.list(search='name=data-foo')[0] File "/root/.local/lib/python2.7/site-packages/ovirtsdk4/services.py", line 26296, in list return self._internal_get(headers, query, wait) File "/root/.local/lib/python2.7/site-packages/ovirtsdk4/service.py", line 211, in _internal_get return future.wait() if wait else future File "/root/.local/lib/python2.7/site-packages/ovirtsdk4/service.py", line 55, in wait return self._code(response) File "/root/.local/lib/python2.7/site-packages/ovirtsdk4/service.py", line 208, in callback self._check_fault(response) File "/root/.local/lib/python2.7/site-packages/ovirtsdk4/service.py", line 132, in _check_fault self._raise_error(response, body) File "/root/.local/lib/python2.7/site-packages/ovirtsdk4/service.py", line 118, in _raise_error raise error ovirtsdk4.Error: Fault reason is "Operation Failed". Fault detail is "Can't find storage server connection for id '92444a95-0be7-4589-ac46-1ed6dfe7ed4c'.". HTTP response code is 500. The portion of the script that search for the storage domain is the following: sds_service = connection.system_service().storage_domains_service() storage_domain = sds_service.list(search='name={}'.format(storage_domain_name))[0] Now: I have no real clue on which ID "92444a95-0be7-4589-ac46-1ed6dfe7ed4c'" but digging in the engine logs it refers to StorageServerConnections ID: [root@ovirt-engine ovirt-engine]# zgrep 92444a95-0be7-4589-ac46-1ed6dfe7ed4c *.gz engine.log-20201108.gz:2020-11-07 06:05:54,352+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-79) [3ffb810c] START, ConnectStorageServerVDSCommand(HostName = another-server.foo.com, StorageServerConnectionManagementVDSParameters:{hostId='7d202bc7-002b-4426-8446-99b6b346874e', storagePoolId='82d0b3de-0334-451c-8321-c3533de9a894', storageType='LOCALFS', connectionList='[StorageServerConnections:{id='92444a95-0be7-4589-ac46-1ed6dfe7ed4c', connection='/data', iqn='null', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}]', sendNetworkEventOnFailure='true'}), log id: 1509fe17 As I said, I tried to execute the script from several hosts: some of them with oVirt 4.3 and other with oVirt 4.4 but it can run, or not, on both of versions. When I try to manage the storage domain via ovirt-engine GUI on the hosts that the script exit with the mentioned error, I recieve the following error: Uncaught exception occurred. Please try reloading the page. Details: (TypeError) : Cannot read property 'a' of null Please have your administrator check the UI logs Any slightest idea on what is going on? Thank you for your time and help, Francesco

2 3

Best and clean way to have oVirt qemu and libvirt versions on CentOS 8
by Gianluca Cecchi 22 Nov '20

22 Nov '20

Hello, normally with current CentOS 8.2 I get qemu-kvm-core-15:2.12.0-99.module_el8.2.0+524+f765f7e0.4.x86_64 libvirt-daemon-4.5.0-42.module_el8.2.0+320+13f867d7.x86_64 With oVirt 4.4 having qemu-kvm-core-4.2.0-29.el8.3.x86_64 libvirt-daemon-6.0.0-25.2.el8.x86_64 and in current Fedora 32 updates: qemu-kvm-core-4.2.1-1.fc32.x86_64.rpm libvirt-daemon-6.1.0-4.fc32.x86_64.rpm I see on CentOS these groups somehow related to Virtualization: Virtualization Host Virtualization Client Virtualization Hypervisor Virtualization Platform Virtualization Tools What could be the best and less intrusive repo to enable on plain CentOS 8.2 to get qemu-kvm and libvirt versions quite similar to oVirt shipped ones, or fedora ones, without enabling all the ovirt 4.4 repos? Thanks, Gianluca

2 2

ovirt-imageio-proxy not working after updating SSL certificates with a wildcard cert issued by AlphaSSL (intermediate)
by Lynn Dixon 22 Nov '20

22 Nov '20

All, I recently bought a wildcard certificate for my lab domain (shadowman.dev) and I replaced all the certs on my RHV4.3 machine per our documentation. The WebUI presents the certs successfully and without any issues, and everything seemed to be fine, until I tried to upload a disk image (or an ISO) to my storage domain. I get this error in the events tab: https://share.getcloudapp.com/p9uPvegx [image: image.png] I also see that the disk is showing up in my storage domain, but its showing "Paused by System" and I can't do anything with it. I cant even delete it! I have tried following this document to fix the issue, but it didn't work: https://access.redhat.com/solutions/4148361 I am seeing this error pop into my engine.log: https://pastebin.com/kDLSEq1A And I see this error in my image-proxy.log: WARNING 2020-07-24 15:26:34,802 web:137:web:(log_error) ERROR [172.17.0.30] PUT /tickets/ [403] Error verifying signed ticket: Invalid ovirt ticket (data='------my_ticket_data-----', reason=Untrusted certificate) [request=0.002946/1] Now, when I bought my wildcard, I was given a root certificate for the CA, as well as a separate intermediate CA certificate from the provider. Likewise, they gave me a certificate and a private key of course. The root and intermediate CA's certificates have been added to /etc/pki/ca-trust/source/anchors/ and I did an update-ca-trust. I also started experiencing issues with the ovpn network provider at the same time I replaced the SSL certs, but I disregarded it at the time, but now I am thinking its related. Any advice on what to look for to fix the ovirt-imageio-proxy? Thanks! *Lynn Dixon* | Red Hat Certified Architect #100-006-188 *Solutions Architect* | NA Commercial Google Voice: 423-618-1414 Cell/Text: 423-774-3188 Click here to view my Certification Portfolio <http://red.ht/1XMX2Mi>

6 8

Re: Fix corrupt self-hosted engine
by Alex K 22 Nov '20

22 Nov '20

For the records, After having fixed the major fs issues with guestfish and since the DB was not starting up, I removed everything from DB data dir and recreated it as below: rm -rf /var/opt/rh/rh-postgresql10/lib/pgsql/data/* /opt/rh/rh-postgresql10/root/usr/bin/postgresql-setup --initdb systemctl restart rh-postgresql10-postgresql.service Then proceeded with the restoration, where I requested to provision all missing databases: engine-backup --mode=restore --file=engine-backup.gz --provision-all-databases \ --log=restore.log --restore-permissions Following this, ran engine-setup, as instructed from the restore operation. Gained engine web access and saw the same running VMs were shown as up without issues. I only observed one VM not able to start due to illegal volume, but that's another story. On Thu, Nov 19, 2020 at 9:42 PM Alex K <rightkicktech(a)gmail.com> wrote: > > > On Thu, Nov 19, 2020 at 5:31 PM Alex K <rightkicktech(a)gmail.com> wrote: > >> Hi Didi, >> >> On Thu, Nov 19, 2020 at 5:13 PM Yedidyah Bar David <didi(a)redhat.com> >> wrote: >> >>> On Thu, Nov 19, 2020 at 4:37 PM Alex K <rightkicktech(a)gmail.com> wrote: >>> >>>> Hi all, >>>> >>>> I have a corrupt self-hosted engine (with several file system errors, >>>> postgres not able to start) and thus it does not give access to the web UI. >>>> This happened following an unlucky split brain resolution (I am running 2 >>>> nodes). The two hosts are running VMs also which I would like to keep >>>> running as they are needed. >>>> >>>> When trying to boot into rescue mode (using >>>> systemd.unit=emergency.target boot parameter) I get a cursor and nothing >>>> else. >>>> >>> >>> This means that more than just the DB is corrupt... >>> >>> >>>> >>>> I have backups of engine files with scope all (using the engine-backup >>>> tool). >>>> What is the best approach to try and fix the engine or redeploy. >>>> >>> >>> If you are careful, and know what you are doing, you can try something >>> like the following. I am not giving many details, hopefully you can find on >>> the net tutorials about how to use the things I suggest: >>> >>> 1. Move to global maintenance >>> >>> 2. Stop the current dead vm (if needed) >>> >>> 3. Find current vm conf, edit it to boot from a rescue iso image of your >>> preference or from net/PXE etc., and start the vm with '--vm-conf' pointing >>> to your edited file. >>> >>> 4. Connect a console (hosted-engine --console, or 'virsh console', or >>> use '--add-console-password' and remote viewer, if needed) >>> >>> 5. Clean the disk and install the OS, oVirt, etc. >>> >>> 6. Copy your backup into the vm and restore with engine-backup >>> >>> 7. Then cleanly stop the machine, exit global maint, and let HA start it >>> (or start it yourself with --vm-start). >>> >>> At the time, we had a bug [1] to document this. The result is [2]. It >>> does not detail how to boot/reinstall os/etc., only restore (if e.g. db is >>> dead but fs is ok). >>> For something somewhat similar to what you want, see also [3], which >>> uses guestfish. Might be useful, depending on how badly your disk is >>> corrupted. >>> >> I went with the guestfish approach. It has fixed some fs issues and now >> the yum etc seem fine apart from postgres. >> I had tried previously to uninstall/install packages so I ended >> installing them again with yum install ovirt\*setup\*. >> Now I think I have to run engine-setup but I get the error: >> >> Failed to execute stage 'Environment setup': Cannot connect to Engine >> database using existing credentials: engine@localhost:5432 >> > Seems that I need to have psql running to be able to run engine-backup > --mode=restore. Are there any steps how one could manually prepare pgsql > for ovirt so as to attempt restoration? > >> >> So I guess I need to follow [2]. What do you think? >> >> >>> How did you run into a split brain? There is a lock on the shared >>> storage that should prevent this. >>> >>> Good luck and best regards, >>> >>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1482710 >>> [2] >>> https://www.ovirt.org/documentation/administration_guide/#Overwriting_a_Sel… >>> [3] https://bugzilla.redhat.com/show_bug.cgi?id=1569827#c4 >>> -- >>> Didi >>> >>

2 1

User portal and DNS entries removal
by Nathanaël Blanchet 21 Nov '20

21 Nov '20

2 1

Can't delete a disk after a failed upload
by lorenzobarbati02＠gmail.com 21 Nov '20

21 Nov '20

Hi, After trying to upload an ISO via the web interface, the upload remains in the "paused by system" state. When I click "cancel" in the upload menu the status stops at "finalizing cleanup". Is there an alternative way to delete this disk?

1 0

Found a host rebooting - ways to watch?
by Chris Adams 20 Nov '20

20 Nov '20

I just noticed that one of my oVirt physical hosts has been rebooting due to an apparent hardware voltage fault. It's a Dell, and I've got their tools installed and am monitoring status, but the issue clears itself. It has apparently been doing this for a bit now, and we didn't catch it because (a) there weren't any VMs on it (probably were the first time but they were restarted elsewhere fast enough that it wasn't noticed) and (b) it reboots fast enough that at most it pops up in our monitoring system for one pass and then clears so our NOC either didn't see it or assumed it was okay since it cleared. oVirt has been logging alerts when it happens, but seeing that requires someone to log in and check the logs (and we've got a bunch of different systems to manage, including multiple oVirt clusters, so nobody is doing that on a regular basis). We monitor most things with SNMP and/or CLI checks (we have PRTG, Nagios, and LibreNMS for various different things). What are people doing to monitor the health of their oVirt systems? Is it possible to get alerts emailed to admins? Is there any SNMP support in oVirt to allow external systems to monitor its health? This setup is on 4.3.10 if that matters. -- Chris Adams <cma(a)cmadams.net>

2 2

Re: EPYC CPU not being detected correctly on cluster
by Lucia Jelinkova 20 Nov '20

20 Nov '20

Hi, oVirt CPU detection depends on libvirt (and that depends on qemu) CPU models. Could you please run the following command to see what libvirt reports? virsh domcapabilities That should give you the list of CPUs known to libvirt with a usability flag for each CPU. If you find out that the CPU is not usable by libvirt, you might want to dig deeper by querying quemu directly. Locate any VM running on the system by sudo virsh list --all Use the name of a VM in the following command: sudo virsh qemu-monitor-command [your-vm's-name] --pretty '{"execute":"query-cpu-definitions"}' That would give you the list of all CPUs supported by qemu and it will list all cpu's features that are not available on your system. Regards, Lucia On Thu, Nov 19, 2020 at 9:38 PM Vinícius Ferrão via Users <users(a)ovirt.org> wrote: > Hi > > > > I’ve an strange issue with two hosts (not using the hypervisor image) with > EPYC CPUs, on the engine I got this message: > > > > The host CPU does not match the Cluster CPU Type and is running in a > degraded mode. It is missing the following CPU flags: model_EPYC. Please > update the host CPU microcode or change the Cluster CPU Type. > > > > But it is an EPYC CPU, the firmware is updated to the latest versions, but > for some reason oVirt does not like it. > > > > Here’s the relevant output from VDSM: > > "cpuCores": "128", > > "cpuFlags": > "ibs,vme,abm,sep,ssse3,perfctr_core,sse4_2,skip-l1dfl-vmentry,cx16,pae,misalignsse,avx2,smap,movbe,vgif,rdctl-no,extapic,clflushopt,de,sse4_1,xsaveerptr,perfctr_llc,fma,mca,sse,rdtscp,monitor,umip,mwaitx,cr8_legacy,mtrr,stibp,bmi2,pclmulqdq,amd-ssbd,lbrv,pdpe1gb,constant_tsc,vmmcall,f16c,ibrs,fsgsbase,invtsc,nopl,lm,3dnowprefetch,smca,ht,tsc_adjust,popcnt,cpb,bmi1,mmx,arat,aperfmperf,bpext,cqm_occup_llc,virt-ssbd,tce,pse,xsave,xgetbv1,topoext,sha_ni,amd_ppin,rdrand,cpuid,tsc_scale,extd_apicid,cqm,rep_good,tsc,sse4a,flushbyasid,pschange-mc-no,mds-no,ibpb,smep,clflush,tsc-deadline,fxsr,pat,avx,pfthreshold,v_vmsave_vmload,osvw,xsavec,cdp_l3,clzero,svm_lock,nonstop_tsc,adx,hw_pstate,spec-ctrl,arch-capabilities,xsaveopt,skinit,rdt_a,svm,rdpid,lahf_lm,fpu,rdseed,fxsr_opt,sse2,nrip_save,vmcb_clean,sme,cat_l3,cqm_mbm_local,irperf,overflow_recov,avic,mce,mmxext,msr,cx8,hypervisor,wdt,mba,nx,decodeassists,cmp_legacy,x2apic,perfctr_nb,succor,pni,xsaves,clwb,cqm_llc,syscall,apic,pge,npt,pse36,cmov,ssbd,pausefilter,sev,aes,wbnoinvd,cqm_mbm_total,spec_ctrl,model_qemu32,model_Opteron_G3,model_Nehalem-IBRS,model_qemu64,model_Conroe,model_kvm64,model_Penryn,model_SandyBridge,model_pentium,model_pentium2,model_kvm32,model_Nehalem,model_Opteron_G2,model_pentium3,model_Opteron_G1,model_SandyBridge-IBRS,model_486,model_Westmere-IBRS,model_Westmere", > > "cpuModel": "AMD EPYC 7H12 64-Core Processor", > > "cpuSockets": "2", > > "cpuSpeed": "3293.405", > > "cpuThreads": "256", > > > > Any ideia on why ou what to do to fix it? > > > > Thanks, > > > _______________________________________________ > 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/WP6XL6ODTLJVB… >

2 1

Upgrade hyperconverged self-hosted ovirt from 4.3 to 4.4
by ralf＠os-s.de 20 Nov '20

20 Nov '20

Hi, has anyone attempted an upgrade from 4.3 to 4.4 in a hyperconverged self-hosted setup? The posted guidelines seem a bit contradictive and not complete. Has anyone tried it and could share his experiences? I am currently having problems when deploying the hosted engine and restoring. The host becomes unresponsive and has hung tasks. Kind regards, Ralf

3 6

change domain name from export domain
by jb 20 Nov '20

20 Nov '20

Hello, I needed to rename all domain names from my NFS storage. VM data and seconds data domains was no problem. But when I try to rename the domain from export domain, a red popup on top opens with this message: Uncaught exception occurred. Please try reloading the page. Details: (TypeError) : ZOj(...) is null Please have your administrator check the UI logs I also notice that, when I rename the path an hit enter, it doesn't write anything to the engine.log Is this a known issue? Best regards Jonathan

1 0

Ovirt 4 2 NIC's
by Facundo Badaracco 20 Nov '20

20 Nov '20

Hi everyone! Hope someone can help me with this.. I have 3 servers with centos 8 and ovirt 4 installed. Each server has 2 nic. Server A = HE (HA) Nic1= 192.169.2.24 Nic2=no ip Server B = HE (HA) Nic1= 192.169.2.25 Nic2=no ip Server C = simply host. Nic1= 192.169.2.26 Nic2=no ip How can i configure the second NIC in each server in order to use it for clients connect to the vms?. I want one nic for management, the other for connections.

2 1

Can't use ovirt web interface (500 error)
by lorenzobarbati02＠gmail.com 20 Nov '20

20 Nov '20

Hi, After updating to the latest version of ovirt (standalone installed with engine-setup) I am no longer able to use the web ui. After I log in, in fact, I get a modal error entitled "operation canceled" and with content "a request to the server failed, error 500" Looking at the requests it actually receives an error 500 when it goes to make a request to "/ovirt-engine/webadmin/GenericApiGWTService" which replies "The call failed on the server; see server log for details" These are the last lines of the engine.log: https://pastebin.com/uFgZASuW Is anyone experiencing the same problem or know how to fix it?

2 1

How do you manage OVN?
by Alex McWhirter 20 Nov '20

20 Nov '20

I'm not sure if I' missing something, but it seems there is no way built in to oVirt to manage OVN outside of network / subnet creation. In particular routing both between networks and to external networks. Of course you have the OVN utilities, but it seems that the provider API is the preffered method of interaction? As far as i can tell, the only utility that can use this API as intended is ManageIQ, which is a bit a behemoth if you only need the OVN portion of things. So is that it then? Interface with the API directly or use ManageIQ? Just curious what others are doing in regards to OVN.

2 1

Need documentation on how to use grafana with ovirt
by wodel youchi 20 Nov '20

20 Nov '20

Hi, Is there any documentation explaining how to use grafana portal to extract metrics data from ovirt ? Regards.

2 1

Re: ovirt 4.3 - locked image vm - unable to remove a failed deploy of a guest dom
by 3c Monitor 20 Nov '20

20 Nov '20

Hi, anyone with an idea on what else I can do? Thanks a lot.

1 0

EPYC CPU not being detected correctly on cluster
by Vinícius Ferrão 19 Nov '20

19 Nov '20

Hi I've an strange issue with two hosts (not using the hypervisor image) with EPYC CPUs, on the engine I got this message: The host CPU does not match the Cluster CPU Type and is running in a degraded mode. It is missing the following CPU flags: model_EPYC. Please update the host CPU microcode or change the Cluster CPU Type. But it is an EPYC CPU, the firmware is updated to the latest versions, but for some reason oVirt does not like it. Here's the relevant output from VDSM: "cpuCores": "128", "cpuFlags": "ibs,vme,abm,sep,ssse3,perfctr_core,sse4_2,skip-l1dfl-vmentry,cx16,pae,misalignsse,avx2,smap,movbe,vgif,rdctl-no,extapic,clflushopt,de,sse4_1,xsaveerptr,perfctr_llc,fma,mca,sse,rdtscp,monitor,umip,mwaitx,cr8_legacy,mtrr,stibp,bmi2,pclmulqdq,amd-ssbd,lbrv,pdpe1gb,constant_tsc,vmmcall,f16c,ibrs,fsgsbase,invtsc,nopl,lm,3dnowprefetch,smca,ht,tsc_adjust,popcnt,cpb,bmi1,mmx,arat,aperfmperf,bpext,cqm_occup_llc,virt-ssbd,tce,pse,xsave,xgetbv1,topoext,sha_ni,amd_ppin,rdrand,cpuid,tsc_scale,extd_apicid,cqm,rep_good,tsc,sse4a,flushbyasid,pschange-mc-no,mds-no,ibpb,smep,clflush,tsc-deadline,fxsr,pat,avx,pfthreshold,v_vmsave_vmload,osvw,xsavec,cdp_l3,clzero,svm_lock,nonstop_tsc,adx,hw_pstate,spec-ctrl,arch-capabilities,xsaveopt,skinit,rdt_a,svm,rdpid,lahf_lm,fpu,rdseed,fxsr_opt,sse2,nrip_save,vmcb_clean,sme,cat_l3,cqm_mbm_local,irperf,overflow_recov,avic,mce,mmxext,msr,cx8,hypervisor,wdt,mba,nx,decodeassists,cmp_legacy,x2apic,perfctr_nb,succor,pni,xsaves,clwb,cqm_llc,syscall,apic,pge,npt,pse36,cmov,ssbd,pausefilter,sev,aes,wbnoinvd,cqm_mbm_total,spec_ctrl,model_qemu32,model_Opteron_G3,model_Nehalem-IBRS,model_qemu64,model_Conroe,model_kvm64,model_Penryn,model_SandyBridge,model_pentium,model_pentium2,model_kvm32,model_Nehalem,model_Opteron_G2,model_pentium3,model_Opteron_G1,model_SandyBridge-IBRS,model_486,model_Westmere-IBRS,model_Westmere", "cpuModel": "AMD EPYC 7H12 64-Core Processor", "cpuSockets": "2", "cpuSpeed": "3293.405", "cpuThreads": "256", Any ideia on why ou what to do to fix it? Thanks,

1 0

[ANN] oVirt 4.4.4 Second Release Candidate is now available for testing
by Lev Veyde 19 Nov '20

19 Nov '20

oVirt 4.4.4 Second Release Candidate is now available for testing The oVirt Project is pleased to announce the availability of oVirt 4.4.4 Second Release Candidate for testing, as of November 19th, 2020. This update is the fourth in a series of stabilization updates to the 4.4 series. How to prevent hosts entering emergency mode after upgrade from oVirt 4.4.1 Note: Upgrading from 4.4.2 GA or later should not require re-doing these steps, if already performed while upgrading from 4.4.1 to 4.4.2 GA. These are only required to be done once. Due to Bug 1837864 <https://bugzilla.redhat.com/show_bug.cgi?id=1837864> - Host enter emergency mode after upgrading to latest build If you have your root file system on a multipath device on your hosts you should be aware that after upgrading from 4.4.1 to 4.4.4 you may get your host entering emergency mode. In order to prevent this be sure to upgrade oVirt Engine first, then on your hosts: 1. Remove the current lvm filter while still on 4.4.1, or in emergency mode (if rebooted). 2. Reboot. 3. Upgrade to 4.4.4 (redeploy in case of already being on 4.4.4). 4. Run vdsm-tool config-lvm-filter to confirm there is a new filter in place. 5. Only if not using oVirt Node: - run "dracut --force --add multipath” to rebuild initramfs with the correct filter configuration 6. Reboot. Documentation - If you want to try oVirt as quickly as possible, follow the instructions on the Download <https://ovirt.org/download/> page. - For complete installation, administration, and usage instructions, see the oVirt Documentation <https://ovirt.org/documentation/>. - For upgrading from a previous version, see the oVirt Upgrade Guide <https://ovirt.org/documentation/upgrade_guide/>. - For a general overview of oVirt, see About oVirt <https://ovirt.org/community/about.html>. Important notes before you try it Please note this is a pre-release build. The oVirt Project makes no guarantees as to its suitability or usefulness. This pre-release must not be used in production. Installation instructions For installation instructions and additional information please refer to: https://ovirt.org/documentation/ This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 8.2 or newer * CentOS Linux (or similar) 8.2 or newer This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 8.2 or newer * CentOS Linux (or similar) 8.2 or newer * oVirt Node 4.4 based on CentOS Linux 8.2 (available for x86_64 only) See the release notes [1] for installation instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available for CentOS Linux 8 - oVirt Node NG is already available for CentOS Linux 8 Additional Resources: * Read more about the oVirt 4.4.4 release highlights: http://www.ovirt.org/release/4.4.4/ * 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/4.4.4/ [2] http://resources.ovirt.org/pub/ovirt-4.4-pre/iso/ -- Lev Veyde Senior Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

1 0

OVIRT and KUBEVIRT
by Andre Meyer Pflug 19 Nov '20

19 Nov '20

Is there someone who has done an NON PERSISTANT VDI over oVirt using kubevirt (on OKD) as the infraestructure for vm's? We plan to do a 1.000.000 concurrent users deployment... Any help is welcome! Kind regards, Andre Meyer Pflug DDESK LLC

3 2

Self Hosted Engine a single Bare Metal Server
by LS CHENG 19 Nov '20

19 Nov '20

Hi We are planning to set up a single ovirt node for testing. It is a single Bare Metal Server. I wonder if there is any problem setting up a Self Hosted Engine in this Bare Metal (there is no HA but we don't need it in this case)? I know it is probably not the best practice but it is for training and testing purposes. Thank you

1 0

Fix corrupt self-hosted engine
by Alex K 19 Nov '20

19 Nov '20

Hi all, I have a corrupt self-hosted engine (with several file system errors, postgres not able to start) and thus it does not give access to the web UI. This happened following an unlucky split brain resolution (I am running 2 nodes). The two hosts are running VMs also which I would like to keep running as they are needed. When trying to boot into rescue mode (using systemd.unit=emergency.target boot parameter) I get a cursor and nothing else. I have backups of engine files with scope all (using the engine-backup tool). What is the best approach to try and fix the engine or redeploy. Thanks for any help. Alex

2 2

Re: oVirt Node Crash
by Anton Louw 19 Nov '20

19 Nov '20

Hi Sandro, Have you perhaps seen anything in the SOS report that could shed some light on the issues? Thanks Anton Louw Cloud Engineer: Storage and Virtualization ______________________________________ D: 087 805 1572 | M: N/A A: Rutherford Estate, 1 Scott Street, Waverley, Johannesburg anton.louw(a)voxtelecom.co.za www.vox.co.za From: Anton Louw Sent: 16 November 2020 07:30 To: Sandro Bonazzola <sbonazzo(a)redhat.com>; Arik Hadas <ahadas(a)redhat.com>; Dominik Holler <dholler(a)redhat.com> Cc: users(a)ovirt.org; Johan Koen <Johan.Koen(a)voxtelecom.co.za> Subject: RE: [ovirt-users] oVirt Node Crash I have also attached the SOS report as requested From: Anton Louw Sent: 16 November 2020 06:54 To: Sandro Bonazzola <sbonazzo(a)redhat.com<mailto:sbonazzo@redhat.com>>; Arik Hadas <ahadas(a)redhat.com<mailto:ahadas@redhat.com>>; Dominik Holler <dholler(a)redhat.com<mailto:dholler@redhat.com>> Cc: users(a)ovirt.org<mailto:users@ovirt.org>; Johan Koen <Johan.Koen(a)voxtelecom.co.za<mailto:Johan.Koen@voxtelecom.co.za>> Subject: RE: [ovirt-users] oVirt Node Crash Hi Sandro, Thanks for the response. I logged onto oVirt this morning, and I see the node is in a “Unassigned” state. I can ping it, but cannot SSH, so there is something that is causing the host to be unresponsive. On Saturday after I sent the mail, I opened a console to the node, and I saw the below entries before logging in: audit:backlog limit exceeded I the tried the solution of increasing the buffer size in the audit.rules file in /etc/audit/rules.d/ , as per below, but it did not resolve the issue. ## First rule - delete all -D ## Increase the buffers to survive stress events. ## Make this bigger for busy systems -b 8192 ## Set failure mode to syslog -f 1 Is it possible to upgrade the node to 4.4 while the engine is still on 4.3? Thanks From: Sandro Bonazzola <sbonazzo(a)redhat.com<mailto:sbonazzo@redhat.com>> Sent: 13 November 2020 18:39 To: Anton Louw <Anton.Louw(a)voxtelecom.co.za<mailto:Anton.Louw@voxtelecom.co.za>>; Arik Hadas <ahadas(a)redhat.com<mailto:ahadas@redhat.com>>; Dominik Holler <dholler(a)redhat.com<mailto:dholler@redhat.com>> Cc: users(a)ovirt.org<mailto:users@ovirt.org>; Johan Koen <Johan.Koen(a)voxtelecom.co.za<mailto:Johan.Koen@voxtelecom.co.za>> Subject: Re: [ovirt-users] oVirt Node Crash Il giorno ven 13 nov 2020 alle ore 17:37 Sandro Bonazzola <sbonazzo(a)redhat.com<mailto:sbonazzo@redhat.com>> ha scritto: Il giorno ven 13 nov 2020 alle ore 13:38 Anton Louw via Users <users(a)ovirt.org<mailto:users@ovirt.org>> ha scritto: Hi Everybody, I have built a new host which has been running fine for the last couple of days. I noticed today that the host crashed, but it is not giving me a reason as to why. It happened at 13:45 today, but I have given time before that on the logs as well. Is there something I am missing here? Not related to the crash, but I see in the logs that 5 out of 20 guests have qemu guest agent not responding. Also you seem to have some issues with some firewalld rules. (Maybe +Dominik Holler<mailto:dholler@redhat.com> would like to have a look) I don't see anything explaining why the host got rebooted. Still related to guest agent I find a bit alarming the following lines: Nov 13 13:29:34 jb2-node03 libvirtd: 2020-11-13 11:29:34.294+0000: 12603: error : qemuDomainAgentAvailable:9144 : Guest agent is not responding: QEMU guest agent is not connected Nov 13 13:29:34 jb2-node03 vdsm[13843]: ERROR Shutdown by QEMU Guest Agent failed#012Traceback (most recent call last):#012 File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 5304, in qemuGuestAgentShutdown#012 self._dom.shutdownFlags(libvirt.VIR_DOMAIN_SHUTDOWN_GUEST_AGENT)#012 File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 100, in f#012 ret = attr(*args, **kwargs)#012 File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper#012 ret = f(*args, **kwargs)#012 File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 94, in wrapper#012 return func(inst, *args, **kwargs)#012 File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2517, in shutdownFlags#012 if ret == -1: raise libvirtError ('virDomainShutdownFlags() failed', dom=self)#012libvirtError: Guest agent is not responding: QEMU guest agent is not connected Nov 13 13:29:42 jb2-node03 kernel: vlan0077: port 11(vnet15) entered disabled state Nov 13 13:29:42 jb2-node03 kernel: device vnet15 left promiscuous mode Nov 13 13:29:42 jb2-node03 kernel: vlan0077: port 11(vnet15) entered disabled state Nov 13 13:29:42 jb2-node03 NetworkManager[6027]: <info> [1605266982.6539] device (vnet15): state change: disconnected -> unmanaged (reason 'unmanaged', sys-iface-state: 'removed') Nov 13 13:29:42 jb2-node03 NetworkManager[6027]: <info> [1605266982.6550] device (vnet15): released from master device vlan0077 Nov 13 13:29:42 jb2-node03 libvirtd: 2020-11-13 11:29:42.669+0000: 12557: error : qemuMonitorIO:718 : internal error: End of file from qemu monitor +Arik Hadas<mailto:ahadas@redhat.com> any clue? About the crash, can you please provide full sos report from the host? the log you provided is not enough to understand what caused the reported crash Also, given python2 is used here, I assume you're on 4.3 or older. I would recommend to upgrade to 4.4 as soon as practical. Thanks Anton Louw Cloud Engineer: Storage and Virtualization at Vox ________________________________ T: 087 805 0000 | D: 087 805 1572 M: N/A E: anton.louw(a)voxtelecom.co.za<mailto:anton.louw@voxtelecom.co.za> A: Rutherford Estate, 1 Scott Street, Waverley, Johannesburg www.vox.co.za<http://www.vox.co.za> [F]<https://www.facebook.com/voxtelecomZA> [T]<https://www.twitter.com/voxtelecom> [I]<https://www.instagram.com/voxtelecomza/> [L]<https://www.linkedin.com/company/voxtelecom> [Y]<https://www.youtube.com/user/VoxTelecom> [#VoxBrand]<https://www.vox.co.za/fibre/fibre-to-the-home/?prod=HOME> Disclaimer The contents of this email are confidential to the sender and the intended recipient. Unless the contents are clearly and entirely of a personal nature, they are subject to copyright in favour of the holding company of the Vox group of companies. Any recipient who receives this email in error should immediately report the error to the sender and permanently delete this email from all storage devices. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast Ltd, an innovator in Software as a Service (SaaS) for business. Providing a safer and more useful place for your human generated data. Specializing in; Security, archiving and compliance. To find out more Click Here<https://www.voxtelecom.co.za/security/mimecast/?prod=Enterprise>. _______________________________________________ Users mailing list -- users(a)ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave(a)ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html<https://www.ovirt.org/privacy-policy.html> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/<https://www.ovirt.org/community/about/community-guidelines/> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/XMRUDMRBYZKUJ…<https://lists.ovirt.org/archives/list/users@ovirt.org/message/XMRUDMRBYZKUJ…> -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA<https://www.redhat.com/> sbonazzo(a)redhat.com<mailto:sbonazzo@redhat.com> [https://static.redhat.com/libs/redhat/brand-assets/2/corp/logo--200.png]<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. <https://mojo.redhat.com/docs/DOC-1199578> -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA<https://www.redhat.com/> sbonazzo(a)redhat.com<mailto:sbonazzo@redhat.com> [https://static.redhat.com/libs/redhat/brand-assets/2/corp/logo--200.png]<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. <https://mojo.redhat.com/docs/DOC-1199578>

2 3

How to create a backup in event of hardware failure of a single hosted engine?
by ernestclydeachua＠gmail.com 18 Nov '20

18 Nov '20

Hello everyone, Currently we have a single bare metal that hosts oVirt and glusterFS which later on to be converted to a 3 nodes for HCI, currently another bare metal is coming this week and was planning to initially create it as a backup. is it possible to deploy a new hosted engine then create a gluster volume for 1st one as a backup domain then attach it to the new one if hardware failure occurred, or there is another kind of setup that can be done?

3 4

Migration VM
by tiziano.pacioni＠par-tec.it 18 Nov '20

18 Nov '20

Hi, I installed a new server, using the ovirt iso, with the target of migrating the VMs coming from another cluster, contained on another ovirt node. I tried to migrate a vm using the Export Domain, once imported on the new node, i see the vm from web dashboard but, from command line “virsh list --all” is absent, the imported vm does not appear in the list. Also if I try to start it, I get the following error: VM X is down with error. Exit message: unsupported configuration: bus must be 0 for ide controller. Can you help me?

2 3