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Error when exporting virtual machine
by Suporte LENEP 04 Mar '20

04 Mar '20

Hello everyone, I am getting the following error when I try to export a virtual machine: 2020-02-04 10:43:44,818-02 ERROR [org.ovirt.engine.core.bll.exportimport.GetVmsFromExportDomainQuery] (default task-94) [1dc343fb-7d47-495d-898c-99f52a686307] Exception: org.ovirt.engine.core.common.errors.EngineException: EngineException: org.ovirt.engine.core.vdsbroker.irsbroker.IRSErrorException: IRSGenericException: IRSErrorException: Failed to GetVmsInfoVDS, error = Storage domain does not exist: (u'5ac6c35d-0406-4a06-a682-ed8fb2d1933f',), code = 358 (Failed with error StorageDomainDoesNotExist and code 358) Any ideas? -- Suporte LENEP

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OVA import fails always
by Juan Pablo Lorier 02 Mar '20

02 Mar '20

Hi, I'm running 4.3.8.2-1.el7 (just updated engine to see if it helps) and I haven't been able to import vms in OVA format, I've tried many appliances downloaded from the web but couldn't get them to work. Any hints? Regards

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Different cpu flags preventing live migration
by Gianluca Cecchi 02 Mar '20

02 Mar '20

Hello, I would like to share some problems that I'm finding on an environment based on RHV, but could impact also oVirt based environments. For my problems I'm working on an opened case to understand root cause. I have Dell R730 hypervisors (with Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz cpu) and some VMs configured for "customized" high performance. In the sense that I configure VM as high performance type and then: - I enable the graphical console (I remove the flag of headless Mode" in Console section); - In Host section I set for "Start Running On" Any Host in Cluster and allow manual and automating migration; - I also set HA in high availability section, accepting default values for leasing, resume behaviour, ecc.. These settings however have the effect to leave enable the flag related to "Pass-Through Host CPU" in Host section. I noticed that with same Bios, ecc with kernel in 4.3.8 (that seems equal between oVirt and RHV): [g.cecchi@ov200 ~]$ uname -r 3.10.0-1062.12.1.el7.x86_64 [g.cecchi@ov200 ~]$ I have this cpu flag set: invpcid_single Instead on the same host in 4.3.5 (eg kernel 3.10.0-1062.el7.x86_64) the flag is not set. This creates problem during upgrade from 4.3.5 to 4.3.8 because initially I empty one host and update it, but then I cannot live migrate back the VMs to update the other one, due to the pass-through flag set, that requires exact set of flags. So crosscheck on a test environment in case you have the "Pass-Through Host CPU" set in Host section for any critical VM you cannot shutdown. BTW: the flag is somehow tricky to remove if you set the VM as High Performance type; you have to: edit VM --> Host Start Running On --> change to select a specific host among the available ones Now you can remove the "Pass-Through Host CPU" flag --> remove it Start Running On --> change again to "Any Host in Cluster" Save Now you can live migrate this "customized" High Performance VM But the problem is that if the VM is running, you have to shutdown it to get the change in effect. HH, Gianluca

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Re: Hyperconverged setup questions
by Strahil 29 Feb '20

29 Feb '20

Hi Marko, I guess you can use distributed-replicated volumes and oVirt cluster with host triplets. Best Regards, Strahil NikolovOn Oct 10, 2019 15:30, "Vrgotic, Marko" <M.Vrgotic(a)activevideo.com> wrote: > > Dear oVirt, > > > > Is it possible to add oVirt 3Hosts/Gluster hyperconverged cluster to existing oVirt setup? I need this to achieve Local storage performance, but still have pool of Hypevisors available. > > Is it possible to have more than 3Hosts in Hyperconverged setup? > > > > I have currently 1Shared Cluster (NFS based storage, where also SHE is hosted) and 2Local Storage clusters. > > > > oVirt current version running is 4.3.4. > > > > Kindly awaiting your reply. > > > > > > — — — > Met vriendelijke groet / Kind regards, > > Marko Vrgotic > > ActiveVideo > > > >

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1-Host home setup question
by Christian Reiss 28 Feb '20

28 Feb '20

Hey folks, for a home-vm setup (1 host): If I setup the Hardware with CentOS7, configure Gluster et all by hand and get things up and running this way: Would it be a viable option to install the ovirt engine directly on the host as well? This would save some overhead. Or is running ovirt engine directly inside an ovirt host, even using CentOS (not the node) not recommended and will break things? -- with kind regards, mit freundlichen Gruessen, Christian Reiss

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Re: ldaps-config
by Budur Nagaraju 27 Feb '20

27 Feb '20

can some one help me on the issue ? badly stuck on this have not got any pointer on fix . An error occurred while attempting to query DNS in order to retrieve SRV records with name '_ldaps._tcp.abc.net <http://tcp.psecure.net>': NameNotFoundException(DNS name not found [response code 3]), ldapSDKVersion=4.0.7, revision=b28fb50058dfe2864171df2448ad2ad2b4c2ad58 Thanks, Nagaraju On Thu, Feb 27, 2020 at 8:48 PM Budur Nagaraju <nbudoor(a)gmail.com> wrote: > Hi Lucie, > > Can you please help me on this issue? am using ldaps for the configuration. > > Thanks, > Nagaraju > > > On Thu, Feb 27, 2020 at 4:00 PM Budur Nagaraju <nbudoor(a)gmail.com> wrote: > >> Hi Lucie, >> >> Have tried the option but when trying to logon from the browser getting >> the below error. >> Any tweaks can be made ? >> >> >> An error occurred while attempting to query DNS in order to retrieve SRV >> records with name '_ldaps._tcp.psecure.net': NameNotFoundException(DNS >> name not found [response code 3]), ldapSDKVersion=4.0.7, >> revision=b28fb50058dfe2864171df2448ad2ad2b4c2ad58 >> >> Thanks, >> Nagaraju >> >> >> >> On Thu, Feb 27, 2020 at 3:51 PM Lucie Leistnerova <lleistne(a)redhat.com> >> wrote: >> >>> Hi Budur, >>> >>> or just use the tool for it - Configuring an External LDAP Provider >>> https://www.ovirt.org/documentation/admin-guide/chap-Users_and_Roles.html >>> >>> Best regards, >>> >>> Lucie >>> On 2/27/20 9:32 AM, Eduardo Mayoral wrote: >>> >>> Should be as simple as this: >>> >>> >>> [root@ovirt-hc0 ~]# cat /etc/ovirt-engine/aaa/*activedirectory* >>> .properties >>> include = <ad.properties> >>> >>> vars.domain = XXXXXX >>> vars.user = YYYYYYYYYYY >>> vars.password = ZZZZZZZZZ >>> >>> *pool.default.ssl.startTLS = true* >>> *pool.default.ssl.startTLSProtocol = TLSv1.2* >>> >>> pool.default.auth.simple.bindDN = ${global:vars.user} >>> pool.default.auth.simple.password = ${global:vars.password} >>> pool.default.serverset.type = srvrecord >>> pool.default.serverset.srvrecord.domain = ${global:vars.domain} >>> >>> >>> >>> Just remember to trust the certificate authority for the ldaps >>> certificate in the ovirt engine server. >>> >>> >>> https://stackoverflow.com/questions/37043442/how-to-add-certificate-authori… >>> >>> >>> On 27/2/20 4:42, Budur Nagaraju wrote: >>> >>> Hi >>> >>> Can someone help me in configuring ldaps in oVirt Engine 4.x ? >>> >>> Thanks, >>> Nagaraju >>> >>> >>> _______________________________________________ >>> Users mailing list -- users(a)ovirt.org >>> To unsubscribe send an email to users-leave(a)ovirt.org >>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >>> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/P6QHPSFZLOZ6E… >>> >>> -- >>> Eduardo Mayoral Jimeno >>> Systems engineer, platform department. Arsys Internet.emayoral(a)arsys.es - +34 941 620 105 - ext 2153 >>> >>> >>> _______________________________________________ >>> Users mailing list -- users(a)ovirt.org >>> To unsubscribe send an email to users-leave(a)ovirt.org >>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >>> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/ADWCGNS353CUN… >>> >>> -- >>> Lucie Leistnerova >>> Senior Quality Engineer, QE Cloud, RHVM >>> Red Hat EMEA >>> >>> IRC: lleistne @ #rhev-qe >>> >>>

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Info on python SDK variable definition
by Gianluca Cecchi 27 Feb '20

27 Feb '20

Hello, suppose in a .py using sdk I have my_var1 = 'prefix' then in the workflow I get at runtime another my_var2 that for example has the attribute my_var2.name that equals "suffix" Then I want to define a new variable my_var3 with value "prefix_suffix", where the string "suffix" is known only at runtime, how can I get it? my_var3 = ??? Can I use something similar to what I do when using the print function? print ("My storage domain is %s..." % sd.name) ? Thanks, Gianluca

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oVirt Python SDK and monitor export as OVA task
by Gianluca Cecchi 27 Feb '20

27 Feb '20

Hello, sometimes I have environments (typically with Oracle RDBMS on virtual machines) where there is one boot disk and one (often big, such as 500Gb or more) data disk. The data disk has already its application backup (typically RMAN) and I want to complement it with a backup of only the boot disk of the operating system and VM configuration. I'm almost done completing a script using oVirt Python SDK and sharing for comments. I could be wrong, but I didn't find any ansible module to do this with Ansible playbooks: I can only save all the VM, that in my case wouldn't be necessary and instead time and storage wasting. The basic steps are: - make a snapshot of the target vm, composed only by the boot disk - clone the snapshot - export the clone as OVA - delete clone - delete snapshot There are some things to discuss about, probably when I will share the overall job (such as the name to give to the boot disk, if not using the bootable flag, the way to import the OVA in case of actual need, where you will have to comment out some fs entries related to missing disks, ecc.). The only thing missing is how to monitor the export to ova task that, as with Ansible, it completes almost immediately, while the export is actually altready running. I need to monitor it, so only at its real end I can run the last 2 steps of the above list of tasks. Can you give me any hint? Not found very much in guide or docs on the web. I'm currently using a sleep because my boot disk is about 20Gb in size and I know that in less than 2 minutes it normally completes. The export as ova is very similar to what found in the examples and they don't contain a monitor for it but only the connection.close() call: cloned_vm_service.export_to_path_on_host( host=types.Host(id=host.id), directory = export_as_ova_dir, filename = cloned_vm.name + '.ova' ) Thanks in advance, Gianluca

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EqualLogic SAN controller switchover
by Chris Adams 27 Feb '20

27 Feb '20

How well does oVirt handle an EqualLogic SAN controller switchover event? IIRC that can result in a short iSCSI "pause" (can't remember how long it takes) - I'm not sure what oVirt's threshold before VMs (including the hosted engine) get paused for storage timeouts. I've got a small setup where the active SAN controller's battery has gone bad, so I need to switch to the other controller, and I'm trying to figure out the impact - do I need to shut all VMs (including the engine) down first, will they just briefly pause and then continue, etc. -- Chris Adams <cma(a)cmadams.net>

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oVirt 4.3.8 ovn vms doesn't ping
by Gianluca Cecchi 27 Feb '20

27 Feb '20

Hello, I have an environment with oVirt 4.3.8. All seems ok from a configuration point of view, but if I use OVN based interfaces on two VMs, they are not able to ping, both if I put them on the same host and if I put on different hosts. At this point they are both running on the same host and their only vnic is on ovn172 network (defined as 192.168.172.0/24). I have this manager # ovn-nbctl show switch fc2fc4e8-ff71-4ec3-ba03-536a870cd483 (ovirt-ovn192-1e252228-ade7-47c8-acda-5209be358fcf) switch 87012fa6-ffaa-4fb0-bd91-b3eb7c0a2fc1 (ovirt-ovn193-d43a7928-0dc8-49d3-8755-5d766dff821a) port 8141047d-10c0-41f6-bedc-130552a115ef addresses: ["00:1a:4a:17:01:54 dynamic"] port 90559419-cb8e-45ae-ad61-6c16c4aff598 addresses: ["00:1a:4a:17:01:52 dynamic"] port b3db190f-086a-4c79-99a0-77f811f66c80 addresses: ["00:1a:4a:17:01:53 dynamic"] switch 9e77163a-c4e4-4abf-a554-0388e6b5e4ce (ovirt-ovn172-4ac7ba24-aad5-432d-b1d2-672eaeea7d63) port 3641cae4-18df-4fba-a2bd-7b0c60a87162 addresses: ["00:1a:4a:19:01:59 dynamic"] port aaddc425-3a38-49bf-bfc7-9eaeab82906e addresses: ["00:1a:4a:19:01:58 dynamic"] The two macs correspond to what I see for VMs in web admin gui and at os level of the two VMs. On the host where VMs are running I have: # ovs-vsctl show f1a41e9c-16fb-4aa2-a386-2f366ade4d3c Bridge br-int fail_mode: secure Port "ovn-b8872a-0" Interface "ovn-b8872a-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.192.34"} Port br-int Interface br-int type: internal Port "vnet0" Interface "vnet0" Port "ovn-1dce5b-0" Interface "ovn-1dce5b-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.192.32"} Port "vnet1" Interface "vnet1" ovs_version: "2.11.0" So apparently I see the vnet0 and vnet1 ports associated with the two VMs How can I check more in depth the reason why they don't ping? Both VMs are CentOS 8.1 but I don't know if it is relevant. Thanks, Gianluca

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