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after upgrade from 4.2.3 to 4.2.5, problems with consoles + cockpit
by Jason Keltz 20 Aug '18

20 Aug '18

Hi.. After an upgrade from 4.2.3 to 4.2.5 last week, I notice that I have a console + cockpit problem. Immediately following the upgrade, everything seemed to be working fine. However, today, a couple of days after the upgrade, when I try to view any CentOS VM console, virt-viewer starts, and I see "Connected to graphic server", but there's no console output. This happens on all Linux VMs, though on my two windows VMs, the console still works. If I restart a Linux VM, I get the console back again, but what made me lose access to all the consoles? In addition, if I right click on one of my 4 hosts, and choose "Host Console", it connects to cockpit which reports: "No VM is running or defined on this host" even though there are plenty. I brought one host into maintenance mode, and rebooted it. I then started a few VMs there, and cockpit still doesn't show anything running. All of the hosts have all available ovirt updates, and are running the latest CentOS 7 kernel + O/S updates. Any ideas? There is no issue with firewall. Jason.

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Configuring Single Sign-On (SSO) for guests VMs
by Николаев Алексей 20 Aug '18

20 Aug '18

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Hosted Engine Setup Issues on Ovirt Node 4.2.5.1
by Jeremy Tourville 20 Aug '18

20 Aug '18

If I try to setup hosted engine with the option to use Ansible it eventually fails on me. See https://lists.ovirt.org/archives/list/users@ovirt.org/thread/LPK7OGFALSQFAN… However if I run hosted-engine --deploy --noansible the setup does complete. There is further trouble though, it seems the networks are not being configured properly. If I browse to Compute>Hosts>Hostname and click on the Setup Host Networks button I am presented with a new window that contains an unassigned logical network of "oivrtmgmt" On the left side pane there are two columns for Interfaces and Assigned Logical Networks. Both of those columns are completely empty. I think if I understand correctly the interfaces column should at least have some info in it. [cid:2a4d1038-bdf0-4d1e-be64-e8a23c1c88d9] So my best guess is that for some unknown reason (at least to me) the Engine doesn't '"know how to get setup properly" either with or without Ansible. That's about as well as I can describe it. I hope it makes sense.... Anyone have ideas on what is going wrong here? Thanksfor any troubleshooting advice you can provide!

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Upgrade 4.1 to 4.2 lsot gfapi Disk Access for VM's
by Ralf Schenk 17 Aug '18

17 Aug '18

Hello, after upgradeing my whole cluster of 8 Hosts to ovirt 4.2.5 and setting compability of cluster and datacenter to 4.2 my existing virtual machines start using FUSE mounted disk-images on my gluster volumes. One bad and slow thing I thought that I got rid of starting with 4.1.x finally ! Disk definition from virsh -r dumpxml VM of old running vm (not restarted yet !): <disk type='network' device='disk' snapshot='no'> <driver name='qemu' type='raw' cache='none' error_policy='stop' io='threads'/> <source protocol='gluster' name='gv0/5d99af76-33b5-47d8-99da-1f32413c7bb0/images/d5f3657f-ac7a-4d89-8a83-e7c47ee0ef05/f99c6cb4-1791-4a55-a0b9-2ff0ec1a4dd7'> <host name='glusterfs.mylocal.domain' port='24007'/> </source> <backingStore/> <target dev='sda' bus='scsi'/> <serial>d5f3657f-ac7a-4d89-8a83-e7c47ee0ef05</serial> <boot order='1'/> <alias name='scsi0-0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> Disk definition from virsh -r dumpxml VM of new started running vm: <disk type='file' device='disk' snapshot='no'> <driver name='qemu' type='raw' cache='none' error_policy='stop' io='threads'/> <source file='/rhev/data-center/mnt/glusterSD/glusterfs.mylocal.domain:_gv0/5d99af76-33b5-47d8-99da-1f32413c7bb0/images/1f0db0ef-a6af-4e3e-90e6-f681d071496b/1b3c3a <backingStore/> <target dev='sda' bus='scsi'/> <serial>1f0db0ef-a6af-4e3e-90e6-f681d071496b</serial> <boot order='1'/> <alias name='ua-1f0db0ef-a6af-4e3e-90e6-f681d071496b'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> How do I get back my gfapi gluster-based Disks ? -- *Ralf Schenk* fon +49 (0) 24 05 / 40 83 70 fax +49 (0) 24 05 / 40 83 759 mail *rs(a)databay.de* <mailto:rs@databay.de> *Databay AG* Jens-Otto-Krag-Straße 11 D-52146 Würselen *www.databay.de* <http://www.databay.de> Sitz/Amtsgericht Aachen • HRB:8437 • USt-IdNr.: DE 210844202 Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, Dipl.-Kfm. Philipp Hermanns Aufsichtsratsvorsitzender: Wilhelm Dohmen ------------------------------------------------------------------------

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info about changing engine ip mode from dhcp to static
by Gianluca Cecchi 17 Aug '18

17 Aug '18

Hello, a colleague of mine installed oVirt engine 4.2.5 on a test CentOS 7.5 system and in its initial configuration he configured its ip via dhcp (using static ip assignment configured at dhcp server side). Now he would like to maintain the same ip/hostname for the engine but with a static configuration on the server. Any hint about how to achieve this? Thanks in advance, Gianluca

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Network issues with oVirt 4.2 and cloud-init
by Berger, Sandy 17 Aug '18

17 Aug '18

--_000_DM5PR05MB316161E1C7E2EB8EA09A76A0D5D40DM5PR05MB3161namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable We're using cloud-init to customize VMs built from a template. We're using = static IPV4 settings so we're specifying an IP address, subnet mask, and ga= teway. There is apparently a bug in the current version of cloud-init shipp= ing as part of CentOS 7.4 (https://bugzilla.redhat.com/show_bug.cgi?id=3D14= 92726) that fails to set the gateway properly. In the description of the bu= g, it says it is fixed in RHEL 7.5 but also says one can use https://people= .redhat.com/rmccabe/cloud-init/cloud-init-0.7.9-20.el7.x86_64.rpm which is = what we're doing. When the new VM first boots, the 3 IPv4 settings are all set correctly. Reb= oots of the VM maintain the settings properly. But, if the VM is shut down = and started again via the oVirt GUI, all of the IPV4 settings on the eth0 v= irtual NIC are lost and the /etc/sysconfig/network-scripts/ifcfg-eth0 shows= that the NIC is now set up for DHCP. Are we doing something incorrectly? Sandy Berger IT - Infrastructure Engineer II Quad/Graphics Performance through Innovation Sussex, Wisconsin 414.566.2123 phone 414.566.4010/2123 pager/PIN sandy.berger(a)qg.com<mailto:sandy.berger@qg.com> www.QG.com<http://www.qg.com/> Follow Us: Facebook<http://www.qg.com/social1> | Twitter<http://www.qg.com/= social2> | LinkedIn<http://www.qg.com/social3> | YouTube<http://www.qg.com/= social4> --_000_DM5PR05MB316161E1C7E2EB8EA09A76A0D5D40DM5PR05MB3161namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> We’re using cloud-init to customize VMs built = from a template. We’re using static IPV4 settings so we’re spec= ifying an IP address, subnet mask, and gateway. There is apparently a bug i= n the current version of cloud-init shipping as part of CentOS 7.4 (<a href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D14= 92726">https://bugzilla.redhat.com/show_bug.cgi?id=3D1492726</a>) that fail= s to set the gateway properly. In the description of the bug, it says it is= fixed in RHEL 7.5 but also says one can use <a href=3D"https://people.redhat.com/rmccabe/cloud-init/cloud-init-0.7= .9-20.el7.x86_64.rpm"> https://people.redhat.com/rmccabe/cloud-init/cloud-init-0.7.9-20.el7.x86_64= .rpm</a> which is what we’re doing.<o:p></o:p> <o:p> </o:p> When the new VM first boots, the 3 IPv4 settings are= all set correctly. Reboots of the VM maintain the settings properly. But, = if the VM is shut down and started again via the oVirt GUI, all of the IPV4= settings on the eth0 virtual NIC are lost and the /etc/sysconfig/network-scripts/ifcfg-eth0 shows that the = NIC is now set up for DHCP.<o:p></o:p> <o:p> </o:p> Are we doing something incorrectly?<o:p></o:p> <o:p> </o:p> Sandy Berger <o:p></o:p> IT – Infrastructure Engineer I= I<o:p></o:p>  <o:p></o:p> Quad/Graphics<o:p><= /o:p> Performance&nb= sp;through Innovation<o:= p></o:p>  <o:p></o:p></= span> Sussex, Wisconsin<o= :p></o:p> 414.566.2123 phone<= o:p></o:p> 414.566.4010/2123 pager/PIN<span= style=3D"font-size:10.5pt;font-family:"Arial",sans-serif;color:#= 444444"><o:p></o:p>  <= /span><o:p></o:p> <a href=3D"mailto:sandy.berger@qg.com"><s= pan style=3D"color:blue">sandy.berger(a)qg.com</a><o:p></o:p> <a href=3D"http://www.qg.com/">www.QG.com</a><o:p></o:p></span= > <o:p> </o:p> </div> Follow Us: <a href=3D"http://www.qg.com/social1">Facebook</a> | <a href=3D"= http://www.qg.com/social2"> Twitter</a> | <a href=3D"http://www.qg.com/social3">LinkedIn</a> | <a href= =3D"http://www.qg.com/social4"> YouTube</a> </body> </html> --_000_DM5PR05MB316161E1C7E2EB8EA09A76A0D5D40DM5PR05MB3161namp_--

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Poor performance of oVirt Export Domain
by Aleksey.I.Maksimov＠yandex.ru 17 Aug '18

17 Aug '18

Hello I deployed a dedicated server (fs05.holding.com) on CentOS 7.5 and created a VDO volume on it. The local write test in the VDO volume on this server gives us an acceptable result # dd if=/dev/zero of=/mnt/vdo-vd1/nfs/testfile count=1000000 1000000+0 records in 1000000+0 records out 512000000 bytes (512 MB) copied, 6.26545 s, 81.7 MB/s The disk capacity of the VDO volume is connected to the oVirt 4.2.5 cluster as the Export Domain via NFS. I'm seeing a problem with the low performance of Export Domain. Snapshots of virtual machines are copied very slowly to the Export Domain, approximately 6-8 MB/s. At the same time, if I try to run a write test in an mounted NFS-directory on any of the oVit cluster hosts, I get about 50-70 MB/s. # dd if=/dev/zero of=/rhev/data-center/mnt/fs05.holding.com:_mnt_vdo-vd1_nfs_ovirt-vm-backup/testfile count=10000000 10000000+0 records in 10000000+0 records out 5120000000 bytes (5.1 GB) copied, 69.5506 s, 73.6 MB/s Help me understand the reason for the slow copying to Export Domain on oVirt.

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oVirt 4.2.5 : VM snapshot creation does not work : command HSMGetAllTasksStatusesVDS failed: Could not acquire resource
by Aleksey Maksimov 17 Aug '18

17 Aug '18

Hello We use oVirt 4.2.5.2-1.el7 (Hosted engine / 4 hosts in cluster / about twenty virtual machines) Virtual machine disks are located on the Data Domain from FC SAN. Snapshots of all virtual machines are created normally. But for one virtual machine, we can not create a snapshot. When we try to create a snapshot in the oVirt web console, we see such errors: Aug 13, 2018, 1:05:06 PM Failed to complete snapshot 'KOM-APP14_BACKUP01' creation for VM 'KOM-APP14'. Aug 13, 2018, 1:05:01 PM VDSM KOM-VM14 command HSMGetAllTasksStatusesVDS failed: Could not acquire resource. Probably resource factory threw an exception.: () Aug 13, 2018, 1:05:00 PM Snapshot 'KOM-APP14_BACKUP01' creation for VM 'KOM-APP14' was initiated by petya@sub.holding.com@sub.holding.com-authz. At this time on the server with the role of "SPM" in the vdsm.log we see this: ... 2018-08-13 05:05:06,471-0500 INFO (jsonrpc/0) [jsonrpc.JsonRpcServer] RPC call VM.getStats succeeded in 0.00 seconds (__init__:573) 2018-08-13 05:05:06,478-0500 INFO (jsonrpc/5) [jsonrpc.JsonRpcServer] RPC call Image.deleteVolumes succeeded in 0.05 seconds (__init__:573) 2018-08-13 05:05:06,478-0500 INFO (tasks/3) [storage.ThreadPool.WorkerThread] START task bb45ae7e-77e9-4fec-9ee2-8e1f0ad3d589 (cmd=<bound method Task.commit of <vdsm.storage.task.Task instance at 0x7f06b85a2128>>, args=None) (threadPool:208) 2018-08-13 05:05:07,009-0500 WARN (tasks/3) [storage.ResourceManager] Resource factory failed to create resource '01_img_6db73566-0f7f-4438-a9ef-6815075f45ea.cdf1751b-64d3-42bc-b9ef-b0174c7ea068'. Canceling request. (resourceManager:543) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/storage/resourceManager.py", line 539, in registerResource obj = namespaceObj.factory.createResource(name, lockType) File "/usr/lib/python2.7/site-packages/vdsm/storage/resourceFactories.py", line 193, in createResource lockType) File "/usr/lib/python2.7/site-packages/vdsm/storage/resourceFactories.py", line 122, in __getResourceCandidatesList imgUUID=resourceName) File "/usr/lib/python2.7/site-packages/vdsm/storage/image.py", line 213, in getChain if srcVol.isLeaf(): File "/usr/lib/python2.7/site-packages/vdsm/storage/volume.py", line 1430, in isLeaf return self._manifest.isLeaf() File "/usr/lib/python2.7/site-packages/vdsm/storage/volume.py", line 139, in isLeaf return self.getVolType() == sc.type2name(sc.LEAF_VOL) File "/usr/lib/python2.7/site-packages/vdsm/storage/volume.py", line 135, in getVolType self.voltype = self.getMetaParam(sc.VOLTYPE) File "/usr/lib/python2.7/site-packages/vdsm/storage/volume.py", line 119, in getMetaParam meta = self.getMetadata() File "/usr/lib/python2.7/site-packages/vdsm/storage/blockVolume.py", line 112, in getMetadata md = VolumeMetadata.from_lines(lines) File "/usr/lib/python2.7/site-packages/vdsm/storage/volumemetadata.py", line 103, in from_lines "Missing metadata key: %s: found: %s" % (e, md)) MetaDataKeyNotFoundError: Meta Data key not found error: ("Missing metadata key: 'DOMAIN': found: {'NONE': '######################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################'}",) 2018-08-13 05:05:07,010-0500 WARN (tasks/3) [storage.ResourceManager.Request] (ResName='01_img_6db73566-0f7f-4438-a9ef-6815075f45ea.cdf1751b-64d3-42bc-b9ef-b0174c7ea068', ReqID='3d924e5e-60d1-47b0-86a7-c63585b56f09') Tried to cancel a processed request (resourceManager:187) 2018-08-13 05:05:07,010-0500 ERROR (tasks/3) [storage.TaskManager.Task] (Task='bb45ae7e-77e9-4fec-9ee2-8e1f0ad3d589') Unexpected error (task:875) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 882, in _run return fn(*args, **kargs) File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 336, in run return self.cmd(*self.argslist, **self.argsdict) File "/usr/lib/python2.7/site-packages/vdsm/storage/securable.py", line 79, in wrapper return method(self, *args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/storage/sp.py", line 1966, in deleteVolume with rm.acquireResource(img_ns, imgUUID, rm.EXCLUSIVE): File "/usr/lib/python2.7/site-packages/vdsm/storage/resourceManager.py", line 1025, in acquireResource return _manager.acquireResource(namespace, name, lockType, timeout=timeout) File "/usr/lib/python2.7/site-packages/vdsm/storage/resourceManager.py", line 475, in acquireResource raise se.ResourceAcqusitionFailed() ResourceAcqusitionFailed: Could not acquire resource. Probably resource factory threw an exception.: () 2018-08-13 05:05:07,059-0500 INFO (tasks/3) [storage.ThreadPool.WorkerThread] FINISH task bb45ae7e-77e9-4fec-9ee2-8e1f0ad3d589 (threadPool:210) 2018-08-13 05:05:07,246-0500 INFO (jsonrpc/1) [root] /usr/libexec/vdsm/hooks/after_get_caps/50_openstacknet: rc=0 err= (hooks:110) 2018-08-13 05:05:07,660-0500 INFO (jsonrpc/1) [root] /usr/libexec/vdsm/hooks/after_get_caps/openstacknet_utils.py: rc=0 err= (hooks:110) 2018-08-13 05:05:08,152-0500 INFO (jsonrpc/1) [root] /usr/libexec/vdsm/hooks/after_get_caps/ovirt_provider_ovn_hook: rc=0 err= (hooks:110) Please help us to solve this problem.

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Clarifications regarding ovirt-provider-ovn network
by Anurag Porripireddi 17 Aug '18

17 Aug '18

Hi, I had some questions a overt-provider-ovn based external network which is built on top of an physical network. I notice that VLAN tagging gets greyed out when I try to create an external provider network. Is it not supported by overt right now?I am on version 4.2.5.3. Also, if I create NICs with the external provider network built atop a physical network on VMs that are on different hosts, but the same cluster, I see they are unable to ping each other, though it seems to work fine if they are on the same host. Is that elected behaviour? Could you you please help me understand why? Thanks, Anurag

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[ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "Unable to resolve address\n"}
by Ariez Ahito 17 Aug '18

17 Aug '18

failed hosted-engine deployment i tried using command line but encountered this error i also tried downloading ovirt-node iso and using WEBUI but encountered same problem i deployed this hosted-engine 3.5 without any problems. any thoughts?

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