- Users - oVirt List Archives

AAA question...takes long time to log in
by sipandbite＠hotmail.com 31 Jul '18

31 Jul '18

I work at a company with a massive AD infrastructure. Is there any way to specify a specific OU to search through instead of just providing a top level DN? We use sssd for all our authing needs on our linux machines and would like to do something like below: ldap_user_search_base = OU=Employees,OU=blah users,DC=blah,DC=com enumerate = false When I connect on cli it looks like Ovirt is reaching out and grabbing a ton of info it doesn't really need. It takes on average 40 second to allow me to log in on CLI or UI. This is not an AD issue as we use AD on everything in our labs and have no issues with speed. I applied these changes and it didn't speed anything up. https://ovirt.org/develop/release-management/features/infra/aaa_faq/ I can see from a tcpdump that I am in fact hitting my local AD servers and not going across the world to get an answer. Thanks!

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Direct LUNs and VM Pauses
by Ryan Bullock 31 Jul '18

31 Jul '18

Hello All, We recently stood up a new Ovirt install backed by an ISCSI SAN and it has been working great, but there are a few quirks I am trying to iron out. We have run into an issue where when we fail-over our SAN (for maintenance, or otherwise) any VM with a Direct LUN gets paused and doesn’t resume. VMs without a direct LUN never paused. Digging through posts on this list and reading some bug reports, it seems like this a known quirk with how Ovirt handles Direct LUNs (it doesn't monitor the LUNs and so it wont resume the VM). To get the VMs to automatically restart I have attached VM leases to them and that seems to work fine, not as nice as a pause and resume, but it minimizes downtime. What I’m trying to understand is why the VMs with Direct LUNs paused, and ones without didn’t. My only speculation is that since the Non-Direct is using LVM on top of ISCSI, that LVM is adding its own layer of timeouts that cause it to mask the outage? My other question is, how can I keep my VMs with Direct LUNs from pausing during short outages? Can I put configurations in my multipath.conf for just the wwids of my Direct LUNs to increase the ‘no_path_retry’ to prevent the VMs from pausing in the first place? I know in general you don’t want to increase the ‘no_path_retry’ because it can cause timeout issues with VDSM and SPM operations (LVM changes, etc). But in the case of a Direct LUN would it cause any problems? Thank you, Ryan

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Extended DPDK support in oVirt[0]
by Leon Goldberg 31 Jul '18

31 Jul '18

Hi, oVirt support for DPDK was introduced in 2017[1], and is now enhanced in terms of deployment via Ansible[2] and usage via OVN. Compatible hosts and NICs can now be easily configured to use userspace drivers, while usage is enhanced via OVN, allowing for both increased performance and SDN usability. For additional information and instructions, please refer to this blog post[0]. [0] https://www.ovirt.org/blog/2018/07/ovn-dpdk/ [1] https://www.ovirt.org/blog/2017/09/ovs-dpdk/ [2] https://github.com/ovirt/ovirt-ansible-dpdk-setup/

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API for attaching the ISO image and virtual floppy disk to the VM
by Hari Prasanth Loganathan 31 Jul '18

31 Jul '18

Hi Team, 1) I use the following oVirt API to attach the ISO image to the virtual machine. URL: https://X.X.X.X/ovirt-engine/api/vms/625871af-180c-4e63-8813-93963907ed17/c… <https://172.30.60.45/ovirt-engine/api/vms/625871af-180c-4e63-8813-93963907e…> Method Type : POST *PUT DATA* : { "file": { "id": "Windows_7_64-bit_Professional_x64 SP1.iso" } } 2) But If I want to assign the virtual floppy disk to the virtual machine, like below, *Is there a way to attach it*? URL: https://X.X.X.X/ovirt-engine/api/vms/625871af-180c-4e63-8813-93963907ed17/c… <https://172.30.60.45/ovirt-engine/api/vms/625871af-180c-4e63-8813-93963907e…> Method Type : POST *PUT DATA* : { "file": { "id": "virto-win.vdf" } } *NOTE*: I am able to set the boot sequence using oVirt UI, like below, where I am able to attach the virtual Floppy Disk and as well as ISO image. -- 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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Hosted Engine deploy failed on new HCI build
by Jayme 31 Jul '18

31 Jul '18

Latest version of oVirt node 4.2 installed on three hosts. I completed successfully the cockpit gdeploy process to deploy HCI. All of that went well with no errors. I then proceeded to the hosted engine deployment step which eventually failed (log attached). This is the current status: --== Host 1 status ==-- conf_on_shared_storage : True Status up-to-date : True Hostname : MASKED Host ID : 1 Engine status : {"reason": "failed liveliness check", "health": "bad", "vm": "up", "detail": "Up"} Score : 3400 stopped : False Local maintenance : False crc32 : 3fa48e03 local_conf_timestamp : 8468 Host timestamp : 8468 Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=8468 (Mon Jul 30 14:21:09 2018) host-id=1 score=3400 vm_conf_refresh_time=8468 (Mon Jul 30 14:21:09 2018) conf_on_shared_storage=True maintenance=False state=EngineStarting stopped=False If I do hosted-engine --console I get: The engine VM is running on this host Connected to domain HostedEngine Escape character is ^] error: internal error: cannot find character device <null> does anyone know why it may have failed or what I could do to recover from this? I'm thinking it could have potentially failed due to some problem with network config. If I could get a console in to the engine VM I might be able to fix it but that serial error above is preventing me from reaching the vm console to diagnose further. Log of deploy attached: Thanks!

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Re: Disk Statistics API in oVirt
by Karli Sjöberg 31 Jul '18

31 Jul '18

4 7

NFS Mount on EMC VNXe3200 / User - Group 36:36 / Permission issue
by jeanbaptiste＠nfrance.com 31 Jul '18

31 Jul '18

Hello, I try to mount an NFS Data share from a EMC VNXe3200 export. Unfortunately, NFS share cannot be mount, there is permission error. (Indeed, after the same issue on another NFS ISO repo, I’ve change exported directory user/group to 36:36, and O-Virt NFS mount was great). So, I think issue with my VNXe3200 is regarding UID / GID owner on VNXe3200 side. After webex with EMC support, change owner / permission on VNXe side seems not possible / supported. Can I mount the NFS share with some options to avoid vdsm:kvm mounting issue ? Can I force mount with root ? Regards, Jean-Baptiste,

2 2

Upgrade from 4.1 to 4.2 failing - SQL Issues
by Sven Achtelik 31 Jul '18

31 Jul '18

Hi All, I'm still struggling to upgrade from 4.1 to 4.2 and the root cause seems to be the SQL upgrade. I installed my 4.1.9 with the engine appliance image and restored a DB to it. My Upgrade to 4.2 is failing with the errors below: -------------------------------- Performing Consistency Checks ----------------------------- Checking cluster versions ok Checking database user is the install user ok Checking database connection settings ok Checking for prepared transactions ok Checking for reg* system OID user data types ok Checking for contrib/isn with bigint-passing mismatch ok Checking for invalid "line" user columns ok Creating dump of global objects ok Creating dump of database schemas engine ovirt_engine_history postgres template1 ok encodings for database "template1" do not match: old "UTF8", new "SQL_ASCII" Failure, exiting I tried everything that could do and I also tried to find a solution on google to make this work. Could someone with DB knowhow please advise on the next steps to resolve this ? I really would like to upgrade somehow. Thank you, Sven

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adding hosts problems with GlusterFS
by william.dossett＠gmail.com 30 Jul '18

30 Jul '18

Hi, I setup my 3 host HCI cluster and things are going pretty good. I have a few issues though... one of them is that I added two more hosts to the three node cluster to make it a 5 nodes. This seemed to work fine until I went to create bricks. I have 6 x 2 TB disks for use as JBOD in each node. After I added the nodes, I went to the host and storage devices. This looks significantly different that the view on my first 3 hosts. On the two new hosts all my drives sdb - sdg have locks next to them and file system type is multipath__member. Further up the page then I see a UID under the name and description is PERC H710P dm-multipath - no lock next to it. I created a brick on this and it created the lvmpv file system, however when I go to bricks view, there are no bricks. So, did I make a mistake while adding the hosts? is there some way to prevent this dm-multipath configuration? Thanks Bill

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[ANN] oVirt 4.2.5 is now generally available (fixed links)
by Lev Veyde 30 Jul '18

30 Jul '18

The oVirt Project is pleased to announce the general availability of oVirt 4.2.5 as of July 30th, 2018 This update is the fifth release in a series of stabilization updates to the 4.2 series. This release is available now for: * Red Hat Enterprise Linux 7.5 or later * CentOS Linux (or similar) 7.5 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.5 or later * CentOS Linux (or similar) 7.5 or later * oVirt Node 4.2 See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is available - oVirt Node is available [2] Additional Resources: * Read more about the oVirt 4.2.5 release highlights: http://www.ovirt.org/release/4.2.5/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4.2.5/ [2] http://resources.ovirt.org/pub/ovirt-4.2/iso/ -- Lev Veyde Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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