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vm has very slow write speed on posix compliant fs disk.
by arc＠b4restore.com 19 Apr '23

19 Apr '23

Hi, we have noticed that we get around 30MB/s of write speed per vm in oVirt on our datastore that is a GPFS filesystem mounted as posix compliant fs. Read speeds are around 1.5-3.3GB/s. We tested directly on the mount from the host cli with some benchmarking tools and from the host directly into the gpfs filesystem we get line speeds but from vms we dont.. does anybody have some clues to what is going on and what to try? Br Andi

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ovirt-engine - developer mode installation
by yongshengmaa＠126.com 19 Apr '23

19 Apr '23

Hello , I'm doing a developer mode installation for ovirt-engine. I'd like to install it based on CentOS 8 Stream, but no matched version of postgresql packages are provided. Which CentOS version should I start this work? Sincerely, Yongsheng

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Hosted deployment difficulties, am I missing anything?
by Xavier Lauzon 17 Apr '23

17 Apr '23

Hi everyone, Last week I had a server go down, which was the only node in my deployment handling the hosted engine (ironically, this happened right when we were planning to move the he to HA). As a result, we have been trying to redeploy the engine but have had no success. We have tried installing on every ovirt node ng stable version from 4.4.10-4.5.4.el8 and .el9. Unfortunately, each time we try to deploy the engine from scratch, we receive either of two errors depending on the version. Some versions fail to create the default network, which can be manually fixed but leads to the following error. The deployment goes until the "Waiting for host to be up" stage; however, it fails without any information as to why. I've sifted through virtually all the logs but can't find the root cause. I am aware of an ongoing issue in the ansible collection (https://github.com/oVirt/ovirt-ansible-collection/issues/695) however, even the fix outlined there does not seem to solve this issue. Additionally, I have headed the recent advice from Sandro to switch to the nightly version. Unfortunately, this has also not been working on either ovirt node or CentOS 9/8, and today has resulted in the following error: [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "cmd": ["virsh", "net-dumpxml", "default"], "delta": "0:00:00.077767", "end": "2023-04-17 17:00:05.980049", "msg": "non-zero return code", "rc": 1, "start": "2023-04-17 17:00:05.902282", "stderr": "error: failed to get network 'default'\nerror: Network not found: no network with matching name 'default'", "stderr_lines": ["error: failed to get network 'default'", "error: Network not found: no network with matching name 'default'"], "stdout": "", "stdout_lines": []} [ ERROR ] Failed to execute stage 'Closing up': Failed getting local_vm_dir Please let me know what additional information needs to be provided; I am more than happy to do so. Is there something I'm missing here? Is there a version that is confirmed to be working at the moment? I am grateful for anyone who takes the time to look into my issue, Xavier Lauzon

1 0

oVirt Installation script
by destfinal＠googlemail.com 17 Apr '23

17 Apr '23

Hi, I am trying to install a self-hosted oVirt cluster using this page - https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engin…. Right from the beginning the documentation states "Self-hosted engine installation is automated using Ansible" and "installation script" all over. But I could not find any link in this regard in this page or elsewhere. Am I missing to see it in the doc? Can somebody please help? Thanks

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How to build network load graphs
by Артур Кириллов 17 Apr '23

17 Apr '23

After updating Overt to 4.5.4, the network load graphs disappeared. Q: How is charting organized? What certificates are involved in data exchange?

1 0

/tmp/lvm.log keeps growing in Host
by kanehisa＠ktcsp.net 16 Apr '23

16 Apr '23

I don't understand why lvm.log is placed in /tmp directory without rotation. I noticed this fact when I got the following event notification every 2 hours. EventID ：24 Message ：Critical, Low disk space. Host ovirt01 has less than 500 MB of free space left on: /tmp. Low disk space might cause an issue upgrading this host. As a workaround, I added a log rotation setting to /tmp/lvm.log, but is this the correct way? I should have understood the contents of the Python program below before asking the question, but please forgive me because I am not very knowledgeable about Python. # cat /usr/lib/python3.6/site-packages/blivet/devicelibs/lvm.py | grep lvm.log config_string += "log {level=7 file=/tmp/lvm.log syslog=0}" Thanks in advance!! Further information is below [root@ovirt01 ~]# cat /etc/os-release NAME="CentOS Stream" VERSION="8" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="8.7.2206.0" VARIANT="oVirt Node 4.5.4" VARIANT_ID="ovirt-node" PRETTY_NAME="oVirt Node 4.5.4" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:8" HOME_URL="https://www.ovirt.org/" BUG_REPORT_URL="https://bugzilla.redhat.com/" PLATFORM_ID="platform:el8" [root@ovirt01 ~]# uname -a Linux ovirt01 4.18.0-408.el8.x86_64 #1 SMP Mon Jul 18 17:42:52 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux [root@ovirt01 ~]# df -h | grep -E " /tmp|Filesystem" Filesystem Size Used Avail Use% Mounted on /dev/mapper/onn_ovirt01-tmp 1014M 515M 499M 51% /tmp [root@ovirt01 ~]# stat /tmp/lvm.log File: /tmp/lvm.log Size: 463915707 Blocks: 906088 IO Block: 4096 regular file Device: fd0eh/64782d Inode: 137 Links: 1 Access: (0600/-rw-------) Uid: ( 0/ root) Gid: ( 0/ root) Context: system_u:object_r:lvm_tmp_t:s0 Access: 2023-02-03 10:30:06.605936740 +0900 Modify: 2023-02-03 09:52:19.712301285 +0900 Change: 2023-02-03 09:52:19.712301285 +0900 Birth: 2023-01-16 01:06:02.768495837 +0900

2 1

Upgrade failing
by notify.sina＠gmail.com 16 Apr '23

16 Apr '23

Hi all Attempting an upgrade in an attempt to fix/paper over expired certificate issues, but ran into this on my ovirt-engine [root@ovirt ~]# dnf upgrade --nobest -y Ceph packages for x86_64 5.1 MB/s | 478 kB 00:00 CentOS Stream 8 - AppStream 73 MB/s | 29 MB 00:00 CentOS Stream 8 - BaseOS 52 MB/s | 30 MB 00:00 CentOS Stream 8 - Extras 130 kB/s | 18 kB 00:00 CentOS Stream 8 - PowerTools 19 MB/s | 5.8 MB 00:00 Extra Packages for Enterprise Linux 8 - x86_64 21 MB/s | 14 MB 00:00 Extra Packages for Enterprise Linux Modular 8 - x86_64 1.0 MB/s | 733 kB 00:00 Extra Packages for Enterprise Linux 8 - Next - x86_64 549 kB/s | 407 kB 00:00 Latest oVirt 4.4 Release 575 kB/s | 2.7 MB 00:04 Extra Packages for Enterprise Linux 8 - x86_64 21 MB/s | 14 MB 00:00 CentOS-8 - Gluster 8 192 B/s | 38 B 00:00 Error: Failed to download metadata for repo 'ovirt-4.4-centos-gluster8': Cannot prepare internal mirrorlist: No URLs in mirrorlist And there are others when I try to disable specific repos. How do I fix this?

1 0

4.5.2 hosted-engine deployment failed
by j9678＠hotmail.com 15 Apr '23

15 Apr '23

The engine deployment failed with message "Host is not up, please check logs, perhaps also on the engine machine" after "Wait for the host to be up". I couldn't find any particular error in setup log, it just failed without pointing out any reason. I've tried on ovirt node (el9 and el8) and RHEL 8.7.

2 1

Ovirt FQDN is not routing correctly and problems with CentOS 9
by aleksiallula＠gmail.com 15 Apr '23

15 Apr '23

I tried to configure ovirt for FQDN with local server but can not get it to work. This is what I added to /etc/hosts: 10.0.0.50 server.ovirt.com 10.0.0.51 server.ovirt2.com My hostname is server.ovirt.com and my IP address is 10.0.0.50. 10.0.0.51 is the hosted engine IP. I have added server.ovirt.com to "DNS search domains" of network card. I ask at the same time: is the difference between hosted engine and hyperconverged that with hyperconverged I could add the host to existing hosted engine ? First I tried to install OVirt to CentOS 9, but there is no "virtualization" menu at the OVirt main menu. So, I can not add the hosted engine setup. Now I try to setup the OVirt for CentOS 8 with this manual: https://anthonyspiteri.net/ovirt-kvm-homelab-1 and https://anthonyspiteri.net/ovirt-kvm-homelab-2. Any ideas how can I setup the FQDN and OVirt to work with CentOS 8 or 9 ? Is there some working repository where I can download the hosted engine version OVirt for CentOS 9 ?

1 0

How can i power on virtual machine automatically
by pivu＠mail.ru 13 Apr '23

13 Apr '23

Tell me please. How can i power on virtual machine automatically when Host power on? I do not see any settings for it. oVirt 4.2

2 1