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Unable to import engine
by Alex K 18 Nov '18

18 Nov '18

Hi all, I had a setup with ovirt 4.2.0 which at some point the engine stopped responding, due to some split brain issues. Since was not able to resolve the split brain, I proceeded to redeploy the engine. The steps I followed: 1. upgrade servers (yum update) 2. ran ovirt-hosted-engine-cleanup 3. deployed engine (now 4.2.7) The deploy was successful and was able to add a new data domain. The issue is that at this point I would expect the engine storage domain and VM to be automatically imported, but it is not. At HA agent logs at the server I see: MainThread::INFO::2018-11-17 12:55:51,856::states::444::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(consume) Engine vm running on localhost MainThread::WARNING::2018-11-17 12:55:52,145::ovf_store::140::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Unable to find OVF_STORE MainThread::ERROR::2018-11-17 12:55:52,146::config_ovf::84::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config.vm::(_get_vm_conf_content_from_ovf_store) Unable to identify the OVF_STORE volume, falling back to initial vm.conf. Please ensure you already added your first data domain for regular VMs MainThread::INFO::2018-11-17 12:55:52,246::hosted_engine::491::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_monitoring_loop) Current state EngineUp (score: 3400) While at engine.log of engine VM I see: 2018-11-17 12:47:14,748Z INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (EE-ManagedThreadFactory-engineScheduled-Thread-51) [] VM '88dacb07-45f1-4bc1-80a0-9434d530eaaa' was discovered as 'Up' on VDS '6eff2018-516d-4af1-807d-ecc31d024f4d'(v0.maya) 2018-11-17 12:47:14,773Z INFO [org.ovirt.engine.core.bll.AddUnmanagedVmsCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-51) [51c593c1] Running command: AddUnmanagedVmsCommand internal: true. 2018-11-17 12:47:14,775Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DumpXmlsVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-51) [51c593c1] START, DumpXmlsVDSCommand(HostName = v0.maya, Params:{hostId='6eff2018-516d-4af1-807d-ecc31d024f4d', vmIds='[88dacb07-45f1-4bc1-80a0-9434d530eaaa]'}), log id: 44bb4e0a 2018-11-17 12:47:14,779Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DumpXmlsVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-51) [51c593c1] FINISH, DumpXmlsVDSCommand, return: {88dacb07-45f1-4bc1-80a0-9434d530eaaa=<domain type='kvm' id='7'> ... <some kind of XML> ... 2018-11-17 12:47:14,793Z WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerObjectsBuilder] (EE-ManagedThreadFactory-engineScheduled-Thread-51) [51c593c1] null architecture type, replacing with x86_64, VM [HostedEngine] Sth is causing engine not not getting imported. Tried to run hosted-engine –reinitialize-lockspace, since I was getting some lockspace errors, but no change. Any idea what could be causing this? I am left with little time due to the site being production. Any idea is appreciated. Thanx, Alex

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Script for backing up VMs
by mail＠karloluiten.nl 18 Nov '18

18 Nov '18

Hi All, I love oVirt, have been running it for some weeks now. I have read the wiki page on backups, and have set up an engine backup. The backing up of VMs is where it gets more tricky. There must be more people already doing this, but I just would like some script that takes my vm name as an argument, and saves a backup (snapshot) of the vm. If someone could help me, that would be awesome. If there is an even easier way to do it (copying files on the FS itself?), that could be even better. I know this question has been asked multiple times over the last years, but I can not find an actual, working, documented way of doing this. Thanks so much, and thanks for creating/maintaining/fixing/building oVirt! Karlo

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Re: Engine ISO Uploader - SSL Peer Not Trusted
by Nir Soffer 17 Nov '18

17 Nov '18

On Sat, Nov 17, 2018, 02:45 Shawn Weeks <sweeks(a)weeksconsulting.us wrote: > Trying to upload an iso using engine-iso-uploader on a hosted-engine > instance and I’m getting an SSL Error. I followed the directions at > https://www.ovirt.org/documentation/admin-guide/appe-oVirt_and_SSL/ to > setup SSL and am able to login to the Admin console without an issue. Also > checked that things like curl recognize the CA correctly. Not sure where > engine-iso-uploader is getting it’s trust store. > > > > [root@cloud ~]# engine-iso-uploader list > > Please provide the REST API password for the admin@internal oVirt Engine > user (CTRL+D to abort): > > ERROR: Unable to connect to REST API at > https://cloud.dev.example.com:443/ovirt-engine/api due to SDK error > > Message: Error while sending HTTP request: (60, "Peer's certificate issuer > has been marked as not trusted by the user.") > > > > What am I missing? > If you ate using 4.2, you can upload iso files to data domains. You can upload directly from the UI: 1. Open storage > disks 2. Click Upload > Start 3. Select file and fill in the form For faster upload or automation, you can use the SDK. See this example code: https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/upload_d… With some configuration changes you can use this as command line tool for uploading iso or other images. Nir > >

2 1

Increasing an Existing iSCSI Storage Domain
by Brian Wilson 17 Nov '18

17 Nov '18

My Question is not so much in how to do this as i have been able to take an existing Storage domain and increase its size with adding another LUN. My Question is how will a failure of one of the LUNs be handled by the engine and how will it effect the VMs running on it. Let me setup an example to better illustrate. Ovirt Node has ISCSI storage domain comprised of 1 Lun from 1 ISCSI based SAN and 2 LUNs from another. So a total of 3 Luns making up the one storage domain. Now there is an issue with the Storage array providing the single lun. What happens? How do you know what VMs are running on each extent? TIA Brian

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Re: Reg: Virt-viewer for MAC
by Karli Sjöberg 17 Nov '18

17 Nov '18

1 0

Hyperconverged Ovirt + ZFS
by Thomas Simmons 17 Nov '18

17 Nov '18

Hello All, I recently took a new job in a RedHat shop and I'd like to move all of my homelab systems to RedHat upstream products to better align with what I manage at work. I had a "custom" (aka - hacked together) 3-node Hyperconverged XenServer cluster and would like to get this moved over to Ovirt (I'm currently testing with 4.2.7). Unfortunately, my storage is limited to software RAID with a 128GB SSD for cache. If at all possible, I would prefer to use ZFS (RAIDZ+ZIL+L2ARC) instead of MD RAID + lvmcache, however I'm not able to get this working and I'm not sure why. My ZFS and Gluster configuration is working - at least where I can manually mount all of my gluster volumes from all of my nodes, however, hosted-engine --deploy fails. I understand this isn't an out of the box configuration for Ovirt, however I see no reason why this shouldn't work. I would think this would be no different than using any other Gluster volume for the engine datastore, Am I missing something that would prevent this from working? [ INFO ] TASK [Add glusterfs storage domain] [ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is "[Storage Domain target is unsupported]". HTTP response code is 400. [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "deprecations": [{"msg": "The 'ovirt_storage_domains' module is being renamed 'ovirt_storage_domain'", "version": 2.8}], "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Storage Domain target is unsupported]\". HTTP response code is 400."} Even though it fails, it appears to have mounted and written __DIRECT_IO_TEST__ to my Gluster volume: [root@vmh1 ~]# mount -t glusterfs localhost:/engine /mnt/engine/ [root@vmh1 ~]# ls /mnt/engine/ __DIRECT_IO_TEST__ If I cancel and try to run the deploy again, I get a different failure: [ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is "[Error creating a storage domain]". HTTP response code is 400. [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "deprecations": [{"msg": "The 'ovirt_storage_domains' module is being renamed 'ovirt_storage_domain'", "version": 2.8}], "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Error creating a storage domain]\". HTTP response code is 400."} Gluster seems ok... [root@vmh1 /]# gluster volume info engine Volume Name: engine Type: Replicate Volume ID: 2e34f8f5-0129-4ba5-983f-1eb5178deadc Status: Started Snapshot Count: 0 Number of Bricks: 1 x 3 = 3 Transport-type: tcp Bricks: Brick1: vmh1-ib:/zpool1/engine Brick2: vmh2-ib:/zpool1/engine Brick3: vmh3-ib:/zpool1/engine Options Reconfigured: transport.address-family: inet nfs.disable: on performance.client-io-threads: off ZFS looks good too... [root@vmh1 ~]# ansible ovirthosts -m shell -a 'zpool status' -b vmh1 | CHANGED | rc=0 >> pool: zpool1 state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM zpool1 ONLINE 0 0 0 sdc ONLINE 0 0 0 sdd ONLINE 0 0 0 sde ONLINE 0 0 0 logs sdb2 ONLINE 0 0 0 cache sdb1 ONLINE 0 0 0 errors: No known data errors vmh3 | CHANGED | rc=0 >> pool: zpool1 state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM zpool1 ONLINE 0 0 0 sdc ONLINE 0 0 0 sdd ONLINE 0 0 0 sde ONLINE 0 0 0 logs sdb2 ONLINE 0 0 0 cache sdb1 ONLINE 0 0 0 errors: No known data errors vmh2 | CHANGED | rc=0 >> pool: zpool1 state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM zpool1 ONLINE 0 0 0 sdc ONLINE 0 0 0 sdd ONLINE 0 0 0 sde ONLINE 0 0 0 logs sdb2 ONLINE 0 0 0 cache sdb1 ONLINE 0 0 0 errors: No known data errors Permissions seem ok [root@vmh1 ~]# ansible ovirthosts -m shell -a 'ls -n /zpool1' -b vmh3 | CHANGED | rc=0 >> total 2 drwxr-xr-x. 3 36 36 3 Nov 15 04:56 data drwxr-xr-x. 3 36 36 4 Nov 15 06:31 engine drwxr-xr-x. 3 36 36 3 Nov 15 04:56 iso vmh1 | CHANGED | rc=0 >> total 2 drwxr-xr-x. 3 36 36 3 Nov 15 04:56 data drwxr-xr-x. 3 36 36 4 Nov 15 06:31 engine drwxr-xr-x. 3 36 36 3 Nov 15 04:56 iso vmh2 | CHANGED | rc=0 >> total 2 drwxr-xr-x. 3 36 36 3 Nov 15 04:56 data drwxr-xr-x. 3 36 36 4 Nov 15 06:31 engine drwxr-xr-x. 3 36 36 3 Nov 15 04:56 iso

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Engine ISO Uploader - SSL Peer Not Trusted
by Shawn Weeks 17 Nov '18

17 Nov '18

Trying to upload an iso using engine-iso-uploader on a hosted-engine instance and I'm getting an SSL Error. I followed the directions at https://www.ovirt.org/documentation/admin-guide/appe-oVirt_and_SSL/ to setup SSL and am able to login to the Admin console without an issue. Also checked that things like curl recognize the CA correctly. Not sure where engine-iso-uploader is getting it's trust store. [root@cloud ~]# engine-iso-uploader list Please provide the REST API password for the admin@internal oVirt Engine user (CTRL+D to abort): ERROR: Unable to connect to REST API at https://cloud.dev.example.com:443/ovirt-engine/api due to SDK error Message: Error while sending HTTP request: (60, "Peer's certificate issuer has been marked as not trusted by the user.") What am I missing? Thanks Shawn

1 0

yum error
by Fernando Fuentes 16 Nov '18

16 Nov '18

Team, This just started happening. Error: Package: ovirt-host-4.2.3-1.el7.x86_64 (@ovirt-4.2) Requires: glusterfs-rdma Removing: glusterfs-rdma-3.12.15-1.el7.x86_64 (@ovirt-4.2-centos-gluster312) glusterfs-rdma = 3.12.15-1.el7 Obsoleted By: mlnx-ofa_kernel-4.3-OFED.4.3.1.0.1.1.g8509e41.3.rhel7u4.x86_64 (spp) Not found Available: glusterfs-rdma-3.8.4-53.el7.centos.x86_64 (base) glusterfs-rdma = 3.8.4-53.el7.centos Available: glusterfs-rdma-3.8.4-54.15.el7.centos.x86_64 (updates) glusterfs-rdma = 3.8.4-54.15.el7.centos Available: glusterfs-rdma-3.12.0-1.el7.x86_64 (ovirt-4.2-centos-gluster312) I cant seem to update. Any ideas why this is happening? Regards, -- Fernando Fuentes ffuentes(a)txweather.org http://www.txweather.org

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how to allow VM to query external DHCP server
by Jarosław Prokopowski 16 Nov '18

16 Nov '18

Hi, It seems my VMs are not able to send DHCP requests to external DHCP server located in the same network as oVirt hosts. Can anyone tell me how I can enable this? Thanks Jarek

1 1

oVirt monitoring
by b.yuri8＠gmail.com 16 Nov '18

16 Nov '18

Hello, I'm trying to do some performance monitoring on our oVirt and want to ask if someone has any experience with it? Currently I'm trying Red Hat Virutalization tool which has REST API, where you can get statistics per host, vm, disk and nic. Problem is that you cannot get any historical data via rest api (at least I didn't find any way to do it) and almost all metrics are gauge values over some interval (couldn't find it documentation, but it looks like they are updated every 15 s). I surely don't want to query whole environment every 15 seconds and missing some values is also not an option since I could miss some spikes in performance. Any help is appreciated! George

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