[ovirt-users] Re: IO per VM monitoring
I have different collection schedules depending on the importance of the data i'm collecting. You can adjust as you need accordingly. For your IO issues you can easily simply poll your machine's IO load statistics from the 5/10/15 minute averages. That will not give you precise intervals but certainly will tell you if something is going wrong. To be honest, Zabbix is flexible enough to get you what you need even if you're not monitoring the metric directly. Anything you can do to raise system visibility is good stuff! Enjoy! On 2024-02-13 14:32, Jorge Visentini wrote: Hi. I also use Zabbix here. Its problem is that it collects metrics in real time, this is not its function. There are other alternatives like Elasticsearch + metricbeat, but from what I've tested, it's very heavy and uses a lot of disk space lol. I never used Prometheus, I found it interesting. I'll do some tests. @Patrick Dubois <mailto:p...@pdubois.com> How often do you collect information with Zabbix? Every 1 minute? Because for example... for the information to be used correctly for analysis, we have to have an IO load of at least 1 continuous minute so that Zabbix can collect the correct information. Cheers! Em ter., 13 de fev. de 2024 às 13:44, Patrick Dubois via Users escreveu: For detailed monitoring I use Zabbix. This way I get detailed metrics on my hypervisors, VMs as well as my network storage. If a machine starts generating large IO I get alerts highlighting the responsible machine as well as the impacted services. For example, you might get high IO on a VM but also the correlated high latency on systems sharing the storage. Sometimes users will report the the high latency, masking the real problem so it's nice to have a holistic view of the entire environment. Patrick.Dubois On 2024-02-13 11:19, marek wrote: > hi, > > i have prometheus based ovirt hosts monitoring (node_exporter, > smartcl_exporter, ipmi_exporter) > > https://prometheus-community.github.io/ansible/branch/main/ and alerts > from https://samber.github.io/awesome-prometheus-alerts/ > > after i started this monitoring i found that one VM is overloading > local storage (so i must check IO limiting documentation as a homework > :) ) > > but my question is > > how do you monitor IO traffic per VM? (IOPS, read/write traffic,..) > > some qemu/libvirt exporter? some custom text file + node_exporter? > > thanks for tips > > Marek > ___ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/6HVHFX464QJPJTVXUFCF7RAGAUFD33HE/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/L4SU7YZ52PO4FPCFBF4NWP6LE67ERSX2/ -- Att, Jorge Visentini +55 55 98432-9868___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/KA4XBIMYHVIMMMF57HDWBRQOSPZOBHDP/
[ovirt-users] Re: IO per VM monitoring
For detailed monitoring I use Zabbix. This way I get detailed metrics on my hypervisors, VMs as well as my network storage. If a machine starts generating large IO I get alerts highlighting the responsible machine as well as the impacted services. For example, you might get high IO on a VM but also the correlated high latency on systems sharing the storage. Sometimes users will report the the high latency, masking the real problem so it's nice to have a holistic view of the entire environment. Patrick.Dubois On 2024-02-13 11:19, marek wrote: hi, i have prometheus based ovirt hosts monitoring (node_exporter, smartcl_exporter, ipmi_exporter) https://prometheus-community.github.io/ansible/branch/main/ and alerts from https://samber.github.io/awesome-prometheus-alerts/ after i started this monitoring i found that one VM is overloading local storage (so i must check IO limiting documentation as a homework :) ) but my question is how do you monitor IO traffic per VM? (IOPS, read/write traffic,..) some qemu/libvirt exporter? some custom text file + node_exporter? thanks for tips Marek ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/6HVHFX464QJPJTVXUFCF7RAGAUFD33HE/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/L4SU7YZ52PO4FPCFBF4NWP6LE67ERSX2/
[ovirt-users] Re: iSCSI Storage Domain Issues - Please Help
Have you reviewed the engine-setup logs? There might be something interesting there. Pat. On 2023-12-20 05:07, Matthew J Black wrote: Hi Guys & Gals, So I've been researching this issue online for a couple of days now and I can't seem to find a solution - so I'm hoping you kind people here can help. We're running oVirt (on Rocky 8, at the moment) with a iSCSI back-end provided by Ceph (Quincy, for the record). Everything from the Ceph-end looks AOK. However, none of the oVirt Hosts (and therefore the VMs) can connect to the Ceph iSCSI RBD Images (oVirt Storage Domains), and only one or two of the Hosts can log into the Ceph iSCSI Target - the others throw a "Failed to setup iSCSI subsystem" error. All of the existing iSCSI Storage Domains are in Maintenance mode, and when I try to do *anything* to them the logs spit out a "Storage domain does not exist:" message. I also cannot create a new iSCSI Storage Domain for a new Ceph pool - again, oVirt simply won't/can't see it, even though it clearly visable in the iSCSI section of the Ceph Dashboard (and in gwcli on the Ceph Nodes). All of this started happening after I ran an update of oVirt - including an "engine setup" with a full engine-vacuum. Nothing has changed on the Ceph-end. So I'm looking for help on 2 issues, which or may not be related: 1) Is there a way to "force" oVirt Hosts to log into iSCSI targets? This will mean all of the oVirt Hosts will be connected to all of the Ceph iSCSI Gateways. 2) I'm thinking that *somehow* the existing "Storage Domains" registered in oVirt have become orphaned, so they need to be "cleaned up" - is there a cli way to do this (I don't mind digging into SQL as I'm an old SQL engineer/admin from way back). Thoughts on how to do this - and if it should be done at all? Or should I simple detach the Storage Domain images from the relevant VMs and destroy the Storage Domains, recreate them (once I can get the oVirt Hosts to log back into the Ceph iSCSI Gateways), and then reattach the relevant images to the relevant VMs? I mean, after all, the data is good and available on the Ceph SAN, so there is only a little risk (as far as I can see) - but there are a *hell* of a lot of VMs to do to do this :-) Anyway, any and all help, suggestions, gotchas, etc, etc, etc, are welcome. :-) Cheers Dulux-Oz ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/MG7DCZZOWX7M6UAHXZ6L3V2MYF67RIF5/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/B7WTB6VSVA5OKX37M7DL6AA4EXLLISYS/
[ovirt-users] Re: Fresh install ovirt node 4.5.5
Perhaps what you want is the hosted engine deployment. Right now it sounds like you do not have a running engine. On December 19, 2023 12:46:00 a.m. EST, nowak.pawel.m...@gmail.com wrote: >I installed the software from the DVD. During installation, there was a >standard installation wizard for Linux systems. I did not create an ovirt user. >___ >Users mailing list -- users@ovirt.org >To unsubscribe send an email to users-le...@ovirt.org >Privacy Statement: https://www.ovirt.org/privacy-policy.html >oVirt Code of Conduct: >https://www.ovirt.org/community/about/community-guidelines/ >List Archives: >https://lists.ovirt.org/archives/list/users@ovirt.org/message/5MYWQIMJLXDGK4UKKRTCFEZDL55QVXDK/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/LHPJPXNEP4WRFKCYDQ3PRQMVUY6YNAXL/
[ovirt-users] Re: Fresh install ovirt node 4.5.5
The user is 'admin@ovirt', not root. You should have set the password during the installation? On December 18, 2023 2:56:05 a.m. EST, nowak.pawel.m...@gmail.com wrote: >Hi, >I made new install ovirt node and i can't login to www panel using the root >account (bad user or password). SSH login works correctly. What may be the >problem? >___ >Users mailing list -- users@ovirt.org >To unsubscribe send an email to users-le...@ovirt.org >Privacy Statement: https://www.ovirt.org/privacy-policy.html >oVirt Code of Conduct: >https://www.ovirt.org/community/about/community-guidelines/ >List Archives: >https://lists.ovirt.org/archives/list/users@ovirt.org/message/5IXO3Q62RZPHXKR42SPGNVTVISFO6AQY/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/N7NLDWMX2IN6MCDDDHUA5KR4KLWUGQRI/
[ovirt-users] Re: oVirt 4.6 OS versions
I would like to add +1 for Rocky. I believe it's a strong contender for long term stability and cooperation. Pat. On 2023-12-12 17:41, d...@bornfree.org wrote: We have had positive experience with Rocky Linux 9. We run RL9 for most of our VMs under oVirt 4.4. We also run RL9 on some of our stand-alone HP Gen8 servers. We are also currently running oVirt 4.4 on HP Gen8 servers and will probably run oVirt 4.6 on HP Gen8 servers. So, my vote is for Rocky Linux 9 as a base for oVirt 4.6 .?! --- ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/BCM5SJA4Q3VER6HX624SUPUOSP4566K2/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/FCNEK5JVAB465OGFXXSBSLL253G7KNTW/
[ovirt-users] Re: Install oVirt node NG on SW raid
I run a small cluster of Rocky 9 hosts all provisioned with multiple Raid10 partitions spanning a range of disks. It works great but is also auto-provisioned with Raid10 in place, not modified after the fact. My first thought is your initramfs is lacking the raid modules. Works great for me and having raid10 across the board is handy. Patrick.Dubois On 2023-12-03 15:54, Jirka Simon wrote: Hello oVirt folks, is there any way to install oVirt node next with sw raid (mirror) I have two disks and i would like to use them for redundancy. I know there is way to migrate from single disk to raid, https://access.redhat.com/solutions/4194011 it worked for me with RHEL8 and Centos 8 earlier, but now with Ovirt Node NG 4.5.5 it doesn't work for me. after restart, I see EFI record I can boot, but it doesn't see any raid array. thank you for any help here. jirka ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/7HTFLUGUIWRQNUDU73CQOY7BM2Y5AR3H/ OpenPGP_0xC35CCD7BA343A00F.asc Description: OpenPGP public key OpenPGP_signature.asc Description: OpenPGP digital signature ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/TP33565XGUN6DZ3TM5THQVOKENCD7MGO/
[ovirt-users] Re: [ANN] oVirt 4.5.5 is now generally available
Congratulations ! This is good news. On 2023-12-01 07:57, Sandro Bonazzola wrote: oVirt 4.5.5 is now generally available The oVirt project is excited to announce the general availability of oVirt 4.5.5, as of December 1st, 2023. OpenPGP_0xC35CCD7BA343A00F.asc Description: OpenPGP public key OpenPGP_signature.asc Description: OpenPGP digital signature ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/Z7UKGUYK54X3VKWNUTUG3KUGD2VUWXP5/
[ovirt-users] Re: Weirdness with attempting NFS mount
I have the same setup running here and the only hiccup experienced was the permission set on TrueNAS. You'll need to modify your filesystem permissions to allow read/write for user/group IDs 36:36. I created local user 'ovirt' and corresponding group with IDs '36' on TrueNAS and granted only that user permission to access that share. I suspect that'll do the trick. Patrick.Dubois On 2023-11-17 11:32, Michaal R via Users wrote: Also, I can mount that NFS share just fine from cli or Cockpit's Storage interface to the /mnt directory. I'm logged into Cockpit and have SSH'd into the ovirt host as root, though, so that may play into why I can mount those without issue. Still, the oVirt management interface should be using the vdsm service, right? And that service should have rights to the /rhev/data-center/ directory? ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/PEZO6UXHKAXE735KMEQTPSGCGLY5T7J3/ OpenPGP_0xC35CCD7BA343A00F.asc Description: OpenPGP public key OpenPGP_signature.asc Description: OpenPGP digital signature ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/LXLHX7JUGXOAAPZT4UYOJQBERVST4ODH/
