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Bug in the engine-backup script when no attached TTY -- Easy fix
by eshwayri＠gmail.com 18 Jan '23

18 Jan '23

The output() function. This line: printf "%s\n" "${m}" It will fail if there is no attached TTY, which will set the exit code to 1, which in turn will trigger the cleanup() function notifying the engine that the backup failed. This ironically happens when it should be writing "Done." and exiting after a successful backup. Fix I used was to change it to: printf "%s\n" "${m}" >> "${LOG}" You can't assume attached TTY since a lot of people like me want to run this as part of a pre/post script to an automated backup program.

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Hosted Engine No Longer Has IP Address - Help!
by Matthew J Black 17 Jan '23

17 Jan '23

Hi Guys, I've gone and shot myself in the foot - and I'm looking for some first-aid. I've managed to remove the IP Address of the oVirt Self-Hosted Engine and so have lost contact with it (don't ask how - let's just say I f*cked-up). I *think* its still running, I've got it set to DHCP, and I've got access to the Host its running on, so my question(s) is: - (The preferred method) How can I re-establish (console?) contact - I'm thinking via the Host Server and some kvm-commands, so I can issue a `dhclient` command - (The most drastic) How can I get it to reboot ie is there a command / command sequence to do this Any help would be appreciated. Cheers Dulux-Oz

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update path from 4.4.4 to 4.5.4
by marek 16 Jan '23

16 Jan '23

hi, i have standalone ovirt-engine 4.4.4 (centos8 stream) few hosts (mix of old centos 8.2, centos 8 stream, rocky linux) can you confirm if this upgrade path is ok? first round - update engine to 4.4.10 - update OS on engine to last centos 8 stream (can i upgrade to some point in time recommended for 4.4.10?) - update hosts to ovirt 4.4.10 - update OS on hosts to last centos 8 stream and rocky linux 8.6 special case in first round - centos 8.2 - migrate OS on hosts from centos 8.2 to rocky linux 8.6 - update hosts to ovirt 4.4.10 second round - update engine to 4.5.4 - update hosts to ovirt 4.5.4 - update OS on hosts - centos 8 stream - is ALREADY on last update from first round - update OS on hosts - rocky linux - from 8.6 to 8.7 Marek

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Preferred way to give customer access to VMs
by hanisirfan.work＠gmail.com 16 Jan '23

16 Jan '23

Hi. Just for an introduction, I'm a junior staff working on a way to deploy a KVM cluster to provision VMs to our customer. Before this, we're using VMware ESXi and connect it to OpenNebula as the console that we give to customers. We're moving to KVM due to VMware licensing cost. I've successfully deployed an oVirt cluster and currently able to access it remotely via a VPN that I've setup on a virtualized pfSense VM inside the cluster. My question is, what is the best way to give customer console access to the VMs that we provisioned for them? Surely we doesn't want to give them access to our VPN for security reasons. I can't seems to find a way to connect OpenNebula with oVirt and I do believe it isn't possible since both are basically virtualization manager, managing the KVM instances. Thanks for the responses and ideas given ☺️

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I would like to inquire about doing DR solutions Active-Passive.
by natchawi28＠gmail.com 16 Jan '23

16 Jan '23

I would like to try a lab to test the DR solution, and would like to know how to provision resources. So what is storage replicate? Is it hardware storage?

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Failed to import the Hosted Engine Storage Domain
by Frank Wall 14 Jan '23

14 Jan '23

Hi, the following error message is periodically logged to engine.log when oVirt tries to import the Hosted Engine Storage Domain (NFS): Validation of action 'AddExistingFileStorageDomain' failed for user SYSTEM. Reasons: VAR__TYPE__STORAGE__DOMAIN,VAR__ACTION__ADD,ERROR_CANNOT_ADD_EXISTING_STORAGE_DOMAIN_CONNECTION_DATA_ILLEGAL I've redeployed my Engine VM while upgrading to oVirt 4.5. Unfortunately, the Engine VM and Hosted Engine Storage Domain are both missing from the oVirt GUI and oVirt is unable to import them apparently. (FWIW, there are several other Storage Domains already configured that work perfectly fine.) Is there any way to manually add the Hosted Engine Storage Domain? I'm also fine with adding the entry manually to the PostgreSQL database if this would be feasible. (Just point me to the right direction so I don't mess up my oVirt setup.) Below are some log messages and errors I've collected from vdsm.log and engine.log. vdsm.log 2023-01-06 21:15:10,803+0100 INFO (jsonrpc/0) [vdsm.api] FINISH getStorageDomainInfo return={'info': {'uuid': '49d7aab9-1e45-4ef0-9657-1247983f129e', 'type': 'NFS', 'class': 'Data', 'name': 'hosted_storage', 'role': 'Master', 'pool': ['c87a1ad0-8dcd-11ed-b48a-00163e352102'], 'version': '5', 'block_size': 512, 'alignment': 1048576, 'remotePath': '10.1.2.3:/mnt/vol2/vm/engine'}} from=::ffff:192.168.0.30,43146, flow_id=4ba364c1, task_id=43840eb6-8b9e-4637-bd0f-261a899d374e (api:37) engine.log 2023-01-06 21:16:28,042+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.HSMGetStorageDomainInfoVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [] FINISH, HSMGetStorageDomainInfoVDSCommand, return: <StorageDomainStatic:{name='hosted_storage', id='49d7aab9-1e45-4ef0-9657-1247983f129e'}, c87a1ad0-8dcd-11ed-b48a-00163e352102>, log id: 5344c976 2023-01-06 21:16:28,046+01 INFO [org.ovirt.engine.core.bll.storage.domain.ImportHostedEngineStorageDomainCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [1728fc85] Running command: ImportHostedEngineStorageDomainCommand internal: true. 2023-01-06 21:16:28,086+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.HSMGetStorageDomainInfoVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [1d6e287c] START, HSMGetStorageDomainInfoVDSCommand(HostName = hv05.example.com, HSMGetStorageDomainInfoVDSCommandParameters:{hostId='4fa6fe39-9254-4264-8a57-4b0a29c645e7', storageDomainId='49d7aab9-1e45-4ef0-9657-1247983f129e'}), log id: 759c4a73 2023-01-06 21:16:28,095+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.HSMGetStorageDomainInfoVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [1d6e287c] FINISH, HSMGetStorageDomainInfoVDSCommand, return: <StorageDomainStatic:{name='hosted_storage', id='49d7aab9-1e45-4ef0-9657-1247983f129e'}, c87a1ad0-8dcd-11ed-b48a-00163e352102>, log id: 759c4a73 2023-01-06 21:16:28,095+01 WARN [org.ovirt.engine.core.bll.storage.domain.AddExistingFileStorageDomainCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [1d6e287c] Validation of action 'AddExistingFileStorageDomain' failed for user SYSTEM. Reasons: VAR__TYPE__STORAGE__DOMAIN,VAR__ACTION__ADD,ERROR_CANNOT_ADD_EXISTING_STORAGE_DOMAIN_CONNECTION_DATA_ILLEGAL 2023-01-06 21:16:28,096+01 INFO [org.ovirt.engine.core.bll.storage.domain.AddExistingFileStorageDomainCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [1d6e287c] Lock freed to object 'EngineLock:{exclusiveLocks='[49d7aab9-1e45-4ef0-9657-1247983f129e=STORAGE]', sharedLocks=''}' 2023-01-06 21:16:28,097+01 INFO [org.ovirt.engine.core.bll.CommandCompensator] (EE-ManagedThreadFactory-engine-Thread-1342) [1d6e287c] Command [id=b0a331fe-5ad5-40b0-b7ce-2d01d0276e4b]: Compensating DELETED_OR_UPDATED_ENTITY of org.ovirt.engine.core.common.businessentities.StorageServerConnections; snapshot: id=c346dafe-09db-4058-ae1c-9b609911a1af. 2023-01-06 21:16:28,100+01 ERROR [org.ovirt.engine.core.bll.storage.domain.ImportHostedEngineStorageDomainCommand] (EE-ManagedThreadFactory-engine-Thread-1342) [1d6e287c] Transaction rolled-back for command 'org.ovirt.engine.core.bll.storage.domain.ImportHostedEngineStorageDomainCommand'. The (new) Engine VM is running on CentOS Stream 8 (using the Engine Appliance from the rpm) and all oVirt nodes/hosts are running on CentOS Stream 9. Ciao - Frank

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Re: aggregate multiple hosts
by Nathanaël Blanchet 13 Jan '23

13 Jan '23

Le 13/01/2023 à 10:57, Csókási István Lehel a écrit : > > I want to increase the performance of a virtual machine by connecting > 6 nodes. Windows 10 runs on the virtual machine, the nodes are HP > Compaq 7900 PCs with Intel E8400 3 GHz Dual core processor, Q45 > chipset, 4Gb RAM > > Thank you > If you want to aggregate hardware capabilities to an unique VM, i.e. vcpu from multiple hosts or RAM aggragation, I don't think it is possible, but I may be wrong... some other members of the community may confirm. > > > 2023. 01. 13. 10:18 keltezéssel, Nathanaël Blanchet írta: >> You should precise your intention to do so. >> Thank you >> >> Le 13 janv. 2023 08:52, csokasi.lehel(a)gmail.com a écrit : >> I would like to ask if it is possible to aggregate multiple hosts to >> a single virtual machine. >> _______________________________________________ >> 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/665K3Y7QSINUF…

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interface http stuck
by remy.ressegaire＠unige.ch 13 Jan '23

13 Jan '23

Hello, When browsing our ovirtadmin web interface it never loads the resource. We are using a third party certificate authority (following this procedure https://myhomelab.gr/linux/2020/01/20/replacing_ovirt_ssl.html) but not sure this leads to the error we have. In the http logs I see : ssl_error_log : [proxy_ajp:error] [pid 23754] [client 10.25.64.40:57838] AH00992: ajp_read_header: ajp_ilink_receive failed [proxy_ajp:error] [pid 23754] (120006)APR does not understand this error code: [client 10.25.64.40:57838] AH00878: read response failed from 127.0.0.1:8702 (127.0.0.1) error.log : [proxy:error] [pid 20752] (111)Connection refused: AH00957: AJP: attempt to connect to 127.0.0.1:8702 (127.0.0.1) failed [proxy:error] [pid 20752] AH00959: ap_proxy_connect_backend disabling worker for (127.0.0.1) for 5s [proxy_ajp:error] [pid 20752] [client 10.25.64.44:50000] AH00896: failed to make connection to backend: 127.0.0.1 Any help will be welcomed. Thanks, Remo

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Sparsifying VM disk not working
by andreas_nikiforou＠hotmail.com 13 Jan '23

13 Jan '23

Hello, i cannot get sparsifying to work in lastest oVirt 4.5.4 release (not that i have tried with a previous release) I have two Data domains connected to oVirt using iSCSI & NFS. I created 2 testvm's and 50GB thin provisioned qcow2 disks for each, made some temp files, remove them and tried to sparsify, but it does not work. Error i am getting is: Error while executing action: Cannot sparsify Virtual Disk. Sparsifying is not supported for QCOW2 disk testvm1_Disk1. In virtual disk options i have enable, Bootable, incremental back and for one of the images i enable discard for testing purposes. What am i doing wrong?

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Failed to launch VM - Error unable to get volume size
by kushagra.gupta＠hsc.com 13 Jan '23

13 Jan '23

Hi, We're trying to launch the VM with PosixFS Storage and recently we've experienced an error while launching. We are successfully uploading the image with PosixFS storage in Storage -> Disks. After upload, we get the status of image upload as illegal, then we are executing the below command on management-engine, and the status changes to OK. `/usr/share/ovirt-engine/setup/dbutils/unlock_entity.sh -t all` Now, When we are creating VM with the same image. Then at the launch time, we got the below errors in /var/log/ovirt-engine/engine.log `ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-32) [539b710] EVENT_ID: VM_DOWN_ERROR(119), VM OS-22Dec is down with error. Exit message: Unable to get volume size for domain <domain_id> volume <volume_id>` All storage domains are PosixFS based. Thanks

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