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Replicated storage gets erased when added to new environment.
by Jacob Green 14 Nov '18

14 Nov '18

So I was testing with two Identical ovirt environments running the latest 4.2 environment. I have iscsi storage set up at Site A, and I have that same storage replicated to Side B, before I get into learning disaster recovery I wanted to see what importing the replicated storage would look like. However when I import it I get the follow, and the vms are wiped from the replicated storage I presented with iscsi. So is this possible with iscsi? Is there another way to go about doing this? My iscsi solution is freenas. -- Jacob Green Systems Admin American Alloy Steel 713-300-5690

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huge page in ovirt 4.2.7
by Fabrice Bacchella 14 Nov '18

14 Nov '18

I'm trying to understand huge page in oVirt, I'm quite sure to understand it well. I have an host with 128GiB. I have configured reserved huge page: cat /proc/cmdline ... hugepagesz=1GB hugepages=120 $ grep -r . /sys/kernel/mm/hugepages /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_overcommit_hugepages:0 /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages:120 /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages_mempolicy:120 /sys/kernel/mm/hugepages/hugepages-1048576kB/surplus_hugepages:0 /sys/kernel/mm/hugepages/hugepages-1048576kB/resv_hugepages:0 /sys/kernel/mm/hugepages/hugepages-1048576kB/free_hugepages:120 /sys/kernel/mm/hugepages/hugepages-2048kB/nr_overcommit_hugepages:0 /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages:0 /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages_mempolicy:0 /sys/kernel/mm/hugepages/hugepages-2048kB/surplus_hugepages:0 /sys/kernel/mm/hugepages/hugepages-2048kB/resv_hugepages:0 /sys/kernel/mm/hugepages/hugepages-2048kB/free_hugepages:0 I have a big VM running on it: <custom_properties> <custom_property> <name>hugepages</name> <value>64</value> </custom_property> </custom_properties> <memory>68719476736</memory>, aka 65536 MiB <memory_policy> <guaranteed>34359738368</guaranteed>, aka 32768 MiB <max>68719476736</max> </memory_policy> And it keep failing when I want to start it: /var/log/ovirt-engine/engine.log:2018-11-14 12:56:06,937+01 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-66) [13c13a2c-f973-4ba2-b8bd-260e5b35a047] EVENT_ID: USER_FAILED_RUN_VM(54), Failed to run VM XXX due to a failed validation: [Cannot run VM. There is no host that satisfies current scheduling constraints. See below for details:, The host XXX did not satisfy internal filter HugePages because there are not enough free huge pages to run the VM.] The huge page fs is mounted: $ findmnt | |-/dev/hugepages1G hugetlbfs hugetlbfs rw,relatime,pagesize=1G | `-/dev/hugepages hugetlbfs hugetlbfs rw,relatime What am I missing ?

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Networking - interface and security questions
by davidk＠riavera.com 14 Nov '18

14 Nov '18

Hello, I'm trying to setup a new ovirt install and have run into some general issues that I hope someone can help with. I'm somewhat new to ovirt (but not virtualization). First off, I've been doing lots of reading and I can't seem to find what the generally accepted method is for firewalling access between networks and VMs is in ovirt? I see references to network filters, but no obvious ways to set ports or modify the configuration beyond a set list of general good-practice policies (no arp spoofing, etc). What do people use in a production environment? Trunk out to an external firewall and do the filtering there? Run iptables or some rules locally in each VM? Or just run pfSense or other firewall software as another VM and manage it there? And lastly, I'm trying to setup a new interface using the external ovn provider but am having problems. I can define the external provider network just fine (not connected to physical network), but can't seem to actually use it. When I create a new VM and assign the new network to an associated interface, the VM fails to start. The error I get is: "VM testvm is down with error. Exit message: Cannot get interface MTU on 'br-int': No such device." Am I missing something obvious here? I'm running oVirt 4.2.7 with the latest oVirt Node on a few hosts (also 4.2.7). All my configuration has been via the web interface so far. Sincerely,

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RDP as default console for Windows VM
by Anantha Raghava 14 Nov '18

14 Nov '18

Hi, In the past, we could set RDP as default console for Windows VM. VMs used to reboot once we set RDP under console options & become default for all users. In the new versions I am unable to achieve the same result. Is there a way to set RDP as default Console for Windows VM? -- Thanks & Regards, Anantha Raghava eXzaTech Consulting And Services Pvt. Ltd. Ph: +91-9538849179, E-mail: raghav(a)exzatechconsulting.com <mailto:raghav@exzatechconsulting.com> URL: http://www.exzatechconsulting.com <http://www.exzatechconsulting.com/> Dell Technology Partner, 3CX - Open Software IP PBX Partner, RedHat Solutions Partner Open Source Software Solutions - oVirt, SMARTDesktop, Apache Metron, OpenVPN, OPNSense...... DISCLAIMER: This e-mail communication and any attachments may be privileged and confidential to eXzatech Consulting And Services Pvt. Ltd., Bangalore, and are intended only for the use of the recipients named above If you are not the addressee you may not copy, forward, disclose or use any part of it. If you have received this message in error, please delete it and all copies from your system and notify the sender immediately by return e-mail. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions. Do not print this e-mail unless required. Save Paper & trees.

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what the sequence of shutdown in Cluster enviroment
by max zhang 14 Nov '18

14 Nov '18

Hi man,There is always a doubt what the sequence of shutdown in Cluster enviroment. The enviroment like as: engine.host.com node.host1.com node.host2.com FCSAN host1 and host2 are in the same cluster. By the way,after I shutdown all the host,what the sequence of start in Cluster enviroment. Best regards.

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Ovirt VDI
by Hari Prasanth Loganathan 14 Nov '18

14 Nov '18

Hi Team, I created a VM which has one disk. For this VM, I created two Virtual Desktop (VDI_1 and VDI_2) using open-UDS and it created successfully. *Consider the following scenario* : 1) I took a console for VDI_1 and created a file in it using the console 2) I took the console for VDI_2 and checked whether the file created in VDI_1 is available in it but as per the VDI concept it is not available Could someone clarify the below use case, Now when I looked at the Disk associated with the VDI, It seems the Disk of the VM is same for the VDI_1 and VDI_2, so How does the file created in VDI_1 is not reflecting in VDI_2? Thanks, Hari -- DISCLAIMER - *MSysTechnologies LLC* This email message, contents and its attachments may contain confidential, proprietary or legally privileged information and is intended solely for the use of the individual or entity to whom it is actually intended. If you have erroneously received this message, please permanently delete it immediately and notify the sender. If you are not the intended recipient of the email message,you are notified strictly not to disseminate,distribute or copy this e-mail.E-mail transmission cannot be guaranteed to be secure or error-free as Information could be intercepted, corrupted, lost, destroyed, incomplete or contain viruses and MSysTechnologies LLC accepts no liability for the contents and integrity of this mail or for any damage caused by the limitations of the e-mail transmission.

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[ANN] oVirt 4.2.7 async update is now available
by Sandro Bonazzola 14 Nov '18

14 Nov '18

The oVirt Team has just released a new version of the following packages: - ovirt-engine - ovirt-hosted-engine-setup - ovirt-release42 Corresponding oVirt Node is being built and will be released tomorrow. The async release addresses the following bugs: - Bug 1647032 - Update gluster volume options set on the volume - Bug 1645757 - VMs running on the deployed host are removed from the engine after backup/restore - Bug 1620314 - SHE disaster recovery is broken in new 4.2 deployments as hosted_storage is master - Bug 1568841 - Can't restore hosted-engine backup at deployment The following enhancements are also included: - Bug 1469908 - [RFE] Support managed/automated restore - Bug 1406067 - [RFE] have the option to install hosted engine on specific datacenter and cluster. Thanks, -- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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Manage external KVMs
by markus.schaufler＠digit-all.at 14 Nov '18

14 Nov '18

Hi! Is there a way to manage several external standalone KVM's with oVirt? So to say - import the KVM Hosts (not the VM's). regards, Markus

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Ovirt Python - SDK
by Hari Prasanth Loganathan 14 Nov '18

14 Nov '18

Hi Team, I get the following error, How to rectify this issue? from ovirtsdk.xml import params ImportError: No module named ovirtsdk.xml *This is the complete log file, Why I get this error and How to rectify it?* python manage.py createcachetableTraceback (most recent call last): File "manage.py", line 9, in <module> execute_from_command_line(sys.argv) File "/home/hari/openuds/testuds-master/Python-2.7.14/env/lib/python2.7/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line utility.execute() File "/home/hari/openuds/testuds-master/Python-2.7.14/env/lib/python2.7/site-packages/django/core/management/__init__.py", line 327, in execute django.setup() File "/home/hari/openuds/testuds-master/Python-2.7.14/env/lib/python2.7/site-packages/django/__init__.py", line 18, in setup apps.populate(settings.INSTALLED_APPS) File "/home/hari/openuds/testuds-master/Python-2.7.14/env/lib/python2.7/site-packages/django/apps/registry.py", line 115, in populate app_config.ready() File "/home/hari/openuds/testuds-master/server/src/uds/__init__.py", line 72, in ready from . import services # to make sure that the packages are initialized at this point File "/home/hari/openuds/testuds-master/server/src/uds/services/__init__.py", line 73, in <module> __init__() File "/home/hari/openuds/testuds-master/server/src/uds/services/__init__.py", line 63, in __init__ __import__('uds.services.' + name, globals(), locals(), []) File "/home/hari/openuds/testuds-master/server/src/uds/services/OVirt/__init__.py", line 31, in <module> from .OVirtProvider import Provider File "/home/hari/openuds/testuds-master/server/src/uds/services/OVirt/OVirtProvider.py", line 44, in <module> from . import client File "/home/hari/openuds/testuds-master/server/src/uds/services/OVirt/client/__init__.py", line 33, in <module> from . import oVirtClient3; File "/home/hari/openuds/testuds-master/server/src/uds/services/OVirt/client/oVirtClient3.py", line 7, in <module> from ovirtsdk.xml import params *ImportError: No module named ovirtsdk.xml* *Thanks,* *Hari * -- DISCLAIMER - *MSysTechnologies LLC* This email message, contents and its attachments may contain confidential, proprietary or legally privileged information and is intended solely for the use of the individual or entity to whom it is actually intended. If you have erroneously received this message, please permanently delete it immediately and notify the sender. If you are not the intended recipient of the email message,you are notified strictly not to disseminate,distribute or copy this e-mail.E-mail transmission cannot be guaranteed to be secure or error-free as Information could be intercepted, corrupted, lost, destroyed, incomplete or contain viruses and MSysTechnologies LLC accepts no liability for the contents and integrity of this mail or for any damage caused by the limitations of the e-mail transmission.

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Memory usage is inaccurate on ovirt web manager.
by patrickstar12358＠hotmail.com 14 Nov '18

14 Nov '18

Hi buddy,I encoutered a issue: Enviroment:ovirt 3.5,node2+node3+engine,node2 and node3 are in the same cluster. node2:64GB memory node3:64GB memory If I try to start 25 VMs on node2,node2's Memory usage is almost up to 80% But if I start 25 VMs on node3,node3's Memory usage is normal,about 70% VMs are all the same. And I checked out "Hosts>General". on node2: Physical Memory:64301 MB total, 49512 MB used, 14789 MB free Swap Size:28567 MB total, -858090 MB used, 886657 MB free Shared Memory:57% Max free Memory for scheduling new VMs:24191 MB Memory Page Sharing:Active on node3: Physical Memory:64301 MB total, 37938 MB used, 26363 MB free Swap Size:28567 MB total, 161 MB used, 28406 MB free Shared Memory:98% Max free Memory for scheduling new VMs:24191 MB Memory Page Sharing:Active Best regard

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