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Move Hosted Engine to external oVirt or VMware
by Markus Schaufler 11 Oct '19

11 Oct '19

Hi, I've got a oVirt Infrastructure with 4 nodes and a self-hosted engine. The hosted engine also manages additional 4 nodes in 4 datacenters. Two tasks: - Re installation of our infrastructure without interfering or interrupting the external nodes. - Separate the external hosts from our infrastructure by either leaving them in the old hosted engine or setting up a new hosted engine on VMware or the new Ovirt Infrastructure We've already drained 2 of our 4 nodes, re-installed them with ovirt node and a new self-hosted engine and moved our VMs onto it. On the two remaining nodes only runs the old self-hosted engine which still manages the 4 external hosts - which prevents me from reinstalling that remaining hosts. I'd prefer to move the old HE to the new oVirt Installation or to our VMware infrastructure. Is that possible and what pitfalls do I have to care of? Many thanks for any hint on this! Markus

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FOSDEM 2020 Virtualization & IaaS Devroom CfP
by Piotr Kliczewski 11 Oct '19

11 Oct '19

We are excited to announce that the call for proposals is now open for the Virtualization & IaaS devroom at the upcoming FOSDEM 2020, to be hosted on February 1st 2020. This year will mark FOSDEM’s 20th anniversary as one of the longest-running free and open source software developer events, attracting thousands of developers and users from all over the world. FOSDEM will be held once again in Brussels, Belgium, on February 1st & 2nd, 2020. This devroom is a collaborative effort, and is organized by dedicated folks from projects such as OpenStack, Xen Project, oVirt, QEMU, KVM, and Foreman. We would like to invite all those who are involved in these fields to submit your proposals by December 1st, 2019. About the Devroom The Virtualization & IaaS devroom will feature session topics such as open source hypervisors and virtual machine managers such as Xen Project, KVM, bhyve, and VirtualBox, and Infrastructure-as-a-Service projects such as KubeVirt, Apache CloudStack, OpenStack, oVirt, QEMU and OpenNebula. This devroom will host presentations that focus on topics of shared interest, such as KVM; libvirt; shared storage; virtualized networking; cloud security; clustering and high availability; interfacing with multiple hypervisors; hyperconverged deployments; and scaling across hundreds or thousands of servers. Presentations in this devroom will be aimed at developers working on these platforms who are looking to collaborate and improve shared infrastructure or solve common problems. We seek topics that encourage dialog between projects and continued work post-FOSDEM. Important Dates Submission deadline: 1 December 2019 Acceptance notifications: 10 December 2019 Final schedule announcement: 15th December 2019 Devroom: 1st February 2020 Submit Your Proposal All submissions must be made via the Pentabarf event planning site[1]. If you have not used Pentabarf before, you will need to create an account. If you submitted proposals for FOSDEM in previous years, you can use your existing account. After creating the account, select Create Event to start the submission process. Make sure to select Virtualization and IaaS devroom from the Track list. Please fill out all the required fields, and provide a meaningful abstract and description of your proposed session. Submission Guidelines We expect more proposals than we can possibly accept, so it is vitally important that you submit your proposal on or before the deadline. Late submissions are unlikely to be considered. All presentation slots are 30 minutes, with 20 minutes planned for presentations, and 10 minutes for Q&A. All presentations will be recorded and made available under Creative Commons licenses. In the Submission notes field, please indicate that you agree that your presentation will be licensed under the CC-By-SA-4.0 or CC-By-4.0 license and that you agree to have your presentation recorded. For example: "If my presentation is accepted for FOSDEM, I hereby agree to license all recordings, slides, and other associated materials under the Creative Commons Attribution Share-Alike 4.0 International License. Sincerely, <NAME>." In the Submission notes field, please also confirm that if your talk is accepted, you will be able to attend FOSDEM and deliver your presentation. We will not consider proposals from prospective speakers who are unsure whether they will be able to secure funds for travel and lodging to attend FOSDEM. (Sadly, we are not able to offer travel funding for prospective speakers.) Submission Guidelines Mentored presentations will have 25-minute slots, where 20 minutes will include the presentation and 5 minutes will be reserved for questions. The number of newcomer session slots is limited, so we will probably not be able to accept all applications. You must submit your talk and abstract to apply for the mentoring program, our mentors are volunteering their time and will happily provide feedback but won't write your presentation for you! If you are experiencing problems with Pentabarf, the proposal submission interface, or have other questions, you can email our devroom mailing list[2] and we will try to help you. How to Apply In addition to agreeing to video recording and confirming that you can attend FOSDEM in case your session is accepted, please write "speaker mentoring program application" in the "Submission notes" field, and list any prior speaking experience or other relevant information for your application. Code of Conduct Following the release of the updated code of conduct for FOSDEM, we'd like to remind all speakers and attendees that all of the presentations and discussions in our devroom are held under the guidelines set in the CoC and we expect attendees, speakers, and volunteers to follow the CoC at all times. If you submit a proposal and it is accepted, you will be required to confirm that you accept the FOSDEM CoC. If you have any questions about the CoC or wish to have one of the devroom organizers review your presentation slides or any other content for CoC compliance, please email us and we will do our best to assist you. Call for Volunteers We are also looking for volunteers to help run the devroom. We need assistance watching time for the speakers, and helping with video for the devroom. Please contact devroom mailing list [2] for more information. Questions? If you have any questions about this devroom, please send your questions to our devroom mailing list. You can also subscribe to the list to receive updates about important dates, session announcements, and to connect with other attendees. See you all at FOSDEM! [1] <https://penta.fosdem.org/submission/FOSDEM17> https://penta.fosdem.org/submission/FOSDEM20 [2] iaas-virt-devroom at lists.fosdem.org

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Re: [ovirt-devel] Creating a custom NON-VM Network using the Ovirt SDK
by Dominik Holler 11 Oct '19

11 Oct '19

On Thu, 10 Oct 2019 14:11:29 -0000 "Jamie Holohan" <james.holohan(a)oracle.com> wrote: > If i'm creating a a custom network on OVM using the UI, one of the options in the pop up is a check box labelled "VM network" for determining if I want a VM network. > "VM network" is modeled as usage in the sdk, so an empty attribute "usages" does the trick: system_service = connection.system_service() networks_service = system_service.networks_service() networks_service.add( types.Network( name='custom_network', data_center=types.DataCenter( name='Default' ), usages=[] ) ) > When using the SDK I am building network with a NetworkBuilder, but I cannot see any methods to toggle the VM network option. How do I create a custom Network with not VM role using the SDK? > > Can it be done with a NetworkBuilder? > _______________________________________________ > Devel mailing list -- devel(a)ovirt.org > To unsubscribe send an email to devel-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/devel@ovirt.org/message/UPR2B3IOGB33R…

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Ovirt 4.3.5/6 automated install fails
by adrianquintero＠gmail.com 11 Oct '19

11 Oct '19

I am having issues while trying to deploy an automated HC install ================================ ansible 2.8.2 config file = /etc/ansible/ansible.cfg configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules'] ansible python module location = /usr/lib/python2.7/site-packages/ansible executable location = /usr/bin/ansible python version = 2.7.5 (default, Jun 20 2019, 20:27:34) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] Ovirt node = 4.3.5 or 4.3.5 1.- Followed the procedure listed in the following link: https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infras… 2.-Ran the playbook within Path: /etc/ansible/roles/gluster.ansible/playbooks/hc-ansible-deployment: ansible-playbook -i gluster_inventory.yml hc_deployment.yml --extra-vars='@he_gluster_vars.json' 3.-Json file [root@host1 hc-ansible-deployment]# cat he_gluster_vars.json { "he_appliance_password": "changeme", "he_admin_password": "changeme", "he_domain_type": "glusterfs", "he_fqdn": "ovirt-engine.example.com", "he_vm_mac_addr": "00:16:fe:05:e1:ee", "he_default_gateway": "10.10.10.1", "he_mgmt_network": "ovirtmgmt", "he_ansible_host_name": "host1.example.com", "he_storage_domain_name": "HostedEngine", "he_storage_domain_path": "/engine", "he_storage_domain_addr": "vmm10.virt.aid3p", "he_mount_options": "backup-volfile-servers=host2.example.com:host3.example.com", "he_bridge_if": "eno49", "he_enable_hc_gluster_service": true, "he_mem_size_MB": "32768", "he_cluster": "Default", } Error: task path: /usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/bootstrap_local_vm/03_engine_initial_tasks.yml:8 fatal: [localhost]: FAILED! => { "msg": "The task includes an option with an undefined variable. The error was: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'he_host_ip'\n\nThe error appears to be in '/usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/bootstrap_local_vm/03_engine_initial_tasks.yml': line 8, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n timeout: 180\n - name: Add an entry for this host on /etc/hosts on the local VM\n ^ here\n" } task path: /usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/bootstrap_local_vm/03_engine_initial_tasks.yml:8 fatal: [localhost]: FAILED! => { "msg": "The task includes an option with an undefined variable. The error was: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'he_host_ip'\n\nThe error appears to be in '/usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/bootstrap_local_vm/03_engine_initial_tasks.yml': line 8, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n timeout: 180\n - name: Add an entry for this host on /etc/hosts on the local VM\n ^ here\n" } task path: /usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/bootstrap_local_vm/03_engine_initial_tasks.yml:57 fatal: [localhost]: FAILED! => { "msg": "The task includes an option with an undefined variable. The error was: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'he_local_vm_dir'\n\nThe error appears to be in '/usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/bootstrap_local_vm/03_engine_initial_tasks.yml': line 57, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n delegate_to: \"{{ he_ansible_host_name }}\"\n - name: Get local VM dir path\n ^ here\n" } PLAY RECAP ****************************************************************************************************************************************************************************** localhost : ok=184 changed=56 unreachable=0 failed=2 skipped=65 rescued=0 ignored=0 host1.example.com : ok=34 changed=17 unreachable=0 failed=0 skipped=70 rescued=0 ignored=0 host2.example.com : ok=37 changed=20 unreachable=0 failed=0 skipped=100 rescued=0 ignored=0 host3.example.com : ok=34 changed=17 unreachable=0 failed=0 skipped=70 rescued=0 ignored=0 So it seems that for some strange reason it is not getting the correct he_host_ip and he_local_vm_dir. has anybody else encountered this error? -Adrian

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Bridge Issue
by Constantinos L 11 Oct '19

11 Oct '19

Hello all, I am trying to setup a bridge. I have 3 virtual machines. The 1st acting as router, the second acting as bridge and the 3rd is the client, like the following diagram ROUTER BRIDGE CLIENT internet(ovirtmng network) ----- [eth0 router --eth1 ] -------[eth0 --[br0]-- eth1] -------[--eth Windows 10] The problem is that windows 10 is not able to connect the internet although is able to allocate ip. I use ovirt external network to connect the VMs to each other. It seems that Windows 10 sends ARP to BRIDGE, the BRIDGE sends the ARP to ROUTER but the replies are not passing the br0 when it comes a reply from ROUTER to Windows 10. I use oVirt 4.3.6. Do you know what should be the issue ? Is there a chance that ovirt blocking the bridge?

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Re: owner of vm paused/unpaused operation
by Strahil 11 Oct '19

11 Oct '19

You can always check the queue_if_no_path multipath.conf option and give it a try. But if your system that is queue-ing get's rebooted - that will be data loss -> use on your own risk. Don't forget that the higher in I/O chain you go - the higher the timeout is needed, so your VM should also use multipath with that option, in addition to the host. Still, we can't help you if you use that feature and you loose data. Best Regards, Strahil NikolovOn Oct 10, 2019 10:55, Francesco Romani <fromani(a)redhat.com> wrote: > > On 10/10/19 9:07 AM, Gianluca Cecchi wrote: > > >> > How is determined the timeout to use to put the VM in pause mode? >> >> >> The VM is paused immediately as soon as libvirt, through QEMU, reports >> IOError, to avoid data corruption. Now, when libvirt reports this error >> >> depends laregly on the timeout set for the storage configuration, which >> is done at host level, using system tools (e.g. it is not a Vdsm tunable) >> > > For test I have set this in multipath.conf of host: > > devices { > device { > all_devs yes > # Set timeout of queuing of 5*28 = 140 seconds > # similar to vSphere APD timeout > # no_path_retry fail > no_path_retry 28 > polling_interval 5 > } > > So it should wait at least 140 seconds before passing error to upper layer correct? > > > AFAICT yes > > >> >>> >>> > Sometimes I see after clearing the problems that the VM is >>> > automatically un-paused, sometimes no: how is this managed? >>> >> >> I noticed that if I set disk as virtio-scsi (it seems virtio has no timeout definable and passes suddenly the error to upper layer) and disk timeout of vm disk (through udev rule) to 180 seconds, I can block access to the storage for example for 100 seconds and the host is able to reinstate paths and then vm is always unpaused. >> But I would like to prevent VM from pausing at all >> What else to tweak? > > > The only way Vdsm will not pause the VM is if libvirt+qemu never reports any ioerror, which is something I'm not sure is possible and that I'd never recommend anyway. > > Vdsm always tries hard to be super-careful with respect possible data corruption. > > > Bests, > > > -- > > Francesco Romani > > Senior SW Eng., Virtualization R&D > > Red Hat > > IRC: fromani github: @fromanirh

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iSCSI storage domain with no switch
by MIMMIK _ 10 Oct '19

10 Oct '19

Is it possibile to have a storage domain on an iSCSI LUN if the storage is connected to the cluster physical nodes with no switch and only direct connections? This is the scenario: - we have two physical nodes with 2 iSCSI ports each. - the storage has 2 controllers, 2 iSCSI ports on each controller - each server is directly connected with a port to a storage port on a controller and to another storage port on the other controller. Do you think is this possibile, maybe using any trick or workaround? Thanks. Regards

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Re: Trying to add a LUN to a host and use that, instead of Gluster, as the datastore for my VM's.
by Strahil 10 Oct '19

10 Oct '19

You can create an NFS on that host and export to itself that local storage... Best Regards, Strahil NikolovOn Oct 9, 2019 07:43, TomK <tomkcpr(a)mdevsys.com> wrote: > > Manged to reverse it through the options. Had to deactivate the custom > local cluster. > > Now I have my GlusterFS back and want to try and add some local storage > to each host under the same DC, Cluster and Storage Domain. So > effectively I will have two storage locations. One on my GlusterFS and > the other on the local storage I've just defined. > > Appears I can't make them coexist with oVirt. Either the host is placed > in a separate cluster with local storage, or I move it back to the > GlusterFS. > > Appears I can't have two usable storage types under one host. Is this > correct? > > What I'm looking for is in the image and shared earlier. > > Cheers, > TK > > On 10/8/2019 11:03 PM, TomK wrote: > > I'm working to reverse this scenario. > > > > My storage domain still exists. However I can't activate it. The > > Manage button is greyed out without clear indication as to why. > > Difficult to tell what my next move should be. > > > > Anyway to find out? > > > > Cheers, > > TK > > > > On 10/7/2019 8:25 AM, TomK wrote: > >> Allright. > >> > >> So I followed this and configured local storage. It had some default > >> names that I changed. It would have been either the default name, or > >> one I choose. In either case it would be a different name then the > >> Gluster storage domain the host was a part of anyway. > >> > >> Once the process completed for both hosts, I noticed the Gluster > >> volume storage domain was offline and the gluster volume was gone. I > >> can't seem to add that back in anymore. I get: > >> > >> "Error while executing action DisconnectStorageServerConnection: Error > >> storage server disconnection" > >> > >> Guessing I can't have local storage in addition to Gluster on the same > >> hosts and available for VM's? > >> > >> Reason why I need that is that Gluster is slow but provides redundancy > >> and live migration. But I also wanted direct storage for VM's > >> requiring faster IO. So here's my scenario: > >> > >> host01 > >> /dev/sda OS > >> /dev/sdb 4TB (For Gluster) > >> /dev/sdc 4TB (For Local Storage) > >> > >> host02 > >> /dev/sda OS > >> /dev/sdb 4TB (For Gluster) > >> /dev/sdc 4TB (For Local Storage) > >> > >> I would like to have: > >> > >> 1) GlusterFS volume available to oVirt via the two /dev/sdb drives in > >> both physical hosts. > >> 2) Two locally attached LUN's, each separate and local to that > >> physical host. > >> > >> Is this possible? > >> > >> Cheers, > >> TK > >> > >> On 10/6/2019 12:38 AM, Strahil wrote: > >>> Hi Tom, > >>> > >>> Have you checked > >>> https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/ht… > >>> ? > >>> > >>> Best Regards, > >>> Strahil NikolovOn Oct 6, 2019 06:26, TomK <tomkcpr(a)mdevsys.com> wrote: > >>>> > >>>> Hey All, > >>>> > >>>> I've added a 4TB LUN to my physical storage and now I want to use that, > >>>> instead of GlusterFS as my datastore for VM's on that physical. How do > >>>> I do this? > >>>> > >>>> I've tried a number of options, including adding LUN's but appears I > >>>> can > >>>> only add them to VM's directly but not use them as my datastores > >>>> instead > >>>> of GlusterFS. > >>>> > >>>> -- > >>>> Thx, > >>>> TK. > >>>> _______________________________________________ > >>>> 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/ZES6FCONNYBXY… > >>>> > >>> _______________________________________________ > >>> 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/WE2MPSRXTJCXD… > >>> > >>> > >> > >> > > > > > > > -- > Thx, > TK. > > _______________________________________________ > 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/QJDCKXESPUMVL…

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owner of vm paused/unpaused operation
by Gianluca Cecchi 10 Oct '19

10 Oct '19

Hello, I'm doing some tests related to storage latency or problems manually created to debug and manage reactions of hosts and VMs. What is the subsystem/process/daemon responsible to pause a VM when problems arise on storage for the host where the VM is running? How is determined the timeout to use to put the VM in pause mode? Sometimes I see after clearing the problems that the VM is automatically un-paused, sometimes no: how is this managed? Are there any counters so that if VM has been paused and and problems are not solved in a certain timeframe the unpause can be done only manually by the sysadmin? Thanks in advance, Gianluca

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Hyperconverged setup questions
by Vrgotic, Marko 10 Oct '19

10 Oct '19

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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