Re: VM templates
by Strahil Nikolov
First of all ,
verify the gluster volume options (gluster volume info <VOLNAME> ;
gluster volume status <VOLNAME>).When you use HCI, ovirt sets up a lot
of optimized options in order to gain the maximum of the Gluster
storage.
Best Regards,Strahil Nikolov
В 15:03 +0000 на 25.01.2021 (пн), Robert Tongue написа:
> Hello,
>
>
>
> Another weird issue over here. I have the latest oVirt running
> inside VMware Vcenter, as a proof of concept/testing platform.
> Things are working well finally, for the most part, however I am
> noticing strange behavior with templates, and deployed VMs
> from that template. Let me explain:
>
>
>
> I created a basic Ubuntu Server VM, captured that VM as a template,
> then deployed 4 VMs from that template. The deployment went fine;
> however I can only start 3 of the 4 VMs. If I shut one down one of
> the 3 that I started, I can then start the other
> one that refused to start, then the one I JUST shut down will then
> refuse to start. The error is:
>
>
>
>
> VM test3 is down with error. Exit message: Bad volume specification
> {'device': 'disk', 'type': 'disk', 'diskType': 'file', 'specParams':
> {}, 'alias': 'ua-2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'address':
> {'bus': '0', 'controller': '0', 'unit': '0', 'type':
> 'drive', 'target': '0'}, 'domainID': '804c6a0c-b246-4ccc-b3ab-
> dd4ceb819cea', 'imageID': '2dc7fbff-da30-485d-891f-03a0ed60fd0a',
> 'poolID': '3208bbce-5e04-11eb-9313-00163e281c6d', 'volumeID':
> 'f514ab22-07ae-40e4-9146-1041d78553fd', 'path': '/rhev/data-
> center/3208bbce-5e04-11eb-9313-00163e281c6d/804c6a0c-b246-4ccc-b3ab-
> dd4ceb819cea/images/2dc7fbff-da30-485d-891f-03a0ed60fd0a/f514ab22-
> 07ae-40e4-9146-1041d78553fd',
> 'discard': True, 'format': 'cow', 'propagateErrors': 'off', 'cache':
> 'none', 'iface': 'scsi', 'name': 'sda', 'bootOrder': '1', 'serial':
> '2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'index': 0, 'reqsize': '0',
> 'truesize': '2882392576', 'apparentsize': '3435134976'}.
>
>
>
> The underlying storage is GlusterFS, self-managed outside of oVirt.
>
>
>
>
>
> I can provide any logs needed, please let me know which. Thanks in
> advance.
>
>
>
>
>
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4 years, 2 months
HCI Deployment via Ansible
by penguin pages
I am trying to teach myself new and better means to deploy and control oVirt and HCI deployment.
Does anyone have notes, experience and or examples.. website etc.. where someone managed deployment and admin of HCI deployment (CentOS + Cockpit + gluster + oVirt) and instead of using shell and manaual / gui deployment, did this "Infrastructure as code"
Ex Step 1:
1) Foundation with kickstart. three nodes with "minimal install" all with ssh keyless password login for user "ansible"
2) Keys exchanged between nodes for keyless login for root and ansible user
3) Using ansible publish HCI deployment playbook.
-> Define drive for each host to use
-> Define name and host / ip of engine
-> install HCI engine with gluster
-> Add SSH keys for ansible and access so future oVirt interaction can be done via ansible
I am just starting to research this.. but hoping others have blazed this path and I can leverage their process.
Concerns:
1) How to get HCI to deploy only engine layer on (in my case... 512GB SSD .. with VDO and avoid destroying VMS not related to engine).. aka if I have to repair engine again will it keep nuking the volumes "data" and "vmstore" volumes which I think the HCI deployment wants to do if it has to redeploy fresh.
2) If above is always to be an issue .. can I make default VM deployment be a dedicated gluster volume (my case is 1TB SSD with VDO in each server) such that rebuild of engine layer can just slurp back in the VMs from that volume.
4 years, 2 months
Performance issue to retrieve VM's after upgrading engine from 4.2 to 4.3
by Jonas Lindholm
This is a weird issue.
Before upgrading it took 8-9 seconds to retrieve all VM's, 1230, using /ovirt-engine/api/vms URI. After the upgrade it now takes over 2 minutes.
Query other items such as hosts, clusters, data centers etc is fast and the same speed as prior the upgrade from 4.2 to 4.3
I don't know if this is DB related or jboss related but any clue where to start to dig deeper is welcome.
I also built a new VM and restored the DB's and ran engine-setup, but that new engine also gets more or less exactly the same response times for the VM's using the restAPI.
I have another engine with same version 4.3.10.4-1, That only have 261 VMs but those are retrieved within 1-2 seconds only so I don't understand how that engine is so much faster than the one I upgraded.
The UI also has the same long response times to show VM's from Compute -> Virtual Machines
Any idea what could cause this?
4 years, 2 months
ovirt-ha-agent
by Ariez Ahito
last dec i installed hosted-engine seems to be working, we can migrate the engine to different host. but we need to reinstall everything because of gluster additional configuration.
so we did installed hosted-engine. but as per checking. we cannot migrate the engine to other hosts. and the ovirt-ha-agent and ovirt-ha-broker is status is inactive (dead) what are we missing?
4 years, 2 months
VM templates
by Robert Tongue
Hello,
Another weird issue over here. I have the latest oVirt running inside VMware Vcenter, as a proof of concept/testing platform. Things are working well finally, for the most part, however I am noticing strange behavior with templates, and deployed VMs from that template. Let me explain:
I created a basic Ubuntu Server VM, captured that VM as a template, then deployed 4 VMs from that template. The deployment went fine; however I can only start 3 of the 4 VMs. If I shut one down one of the 3 that I started, I can then start the other one that refused to start, then the one I JUST shut down will then refuse to start. The error is:
VM test3 is down with error. Exit message: Bad volume specification {'device': 'disk', 'type': 'disk', 'diskType': 'file', 'specParams': {}, 'alias': 'ua-2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'address': {'bus': '0', 'controller': '0', 'unit': '0', 'type': 'drive', 'target': '0'}, 'domainID': '804c6a0c-b246-4ccc-b3ab-dd4ceb819cea', 'imageID': '2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'poolID': '3208bbce-5e04-11eb-9313-00163e281c6d', 'volumeID': 'f514ab22-07ae-40e4-9146-1041d78553fd', 'path': '/rhev/data-center/3208bbce-5e04-11eb-9313-00163e281c6d/804c6a0c-b246-4ccc-b3ab-dd4ceb819cea/images/2dc7fbff-da30-485d-891f-03a0ed60fd0a/f514ab22-07ae-40e4-9146-1041d78553fd', 'discard': True, 'format': 'cow', 'propagateErrors': 'off', 'cache': 'none', 'iface': 'scsi', 'name': 'sda', 'bootOrder': '1', 'serial': '2dc7fbff-da30-485d-891f-03a0ed60fd0a', 'index': 0, 'reqsize': '0', 'truesize': '2882392576', 'apparentsize': '3435134976'}.
The underlying storage is GlusterFS, self-managed outside of oVirt.
I can provide any logs needed, please let me know which. Thanks in advance.
4 years, 2 months
metrics-store-installation.yml does not exist
by unityresearcher＠alterpost.org
Hi to all. There is some problem with metric storage installation on oVirt (v4.4.4.7-1.el8).
According to all manuals (both overt and red hat) I have to run ovirt-metrics-store-installation.yml Ansible playbook. But it doesn’t exist.
# hostname
ovirt-engine
# pwd
/usr/share/ovirt-engine-metrics
# ANSIBLE_JINJA2_EXTENSIONS="jinja2.ext.do" ./configure_ovirt_machines_for_metrics.sh \
> --playbook=ovirt-metrics-store-installation.yml --ask-vault-pass
ERROR! the playbook: playbooks/ovirt-metrics-store-installation.yml could not be found
# ls -1 playbooks/
cleanup-ovirt-metrics.yml
configure-ovirt-metrics.yml
manage-ovirt-metrics-services.yml
#
Also I have no luck to find this playbook in GutHub. Help me please.
4 years, 2 months
Gluster Storage
by dkiplagat＠outlook.com
Hi, Am new using oVirt and i would like to know if i could deploy oVirt and be able to use it to deploy and manage Gluster storage.
4 years, 2 months
Red Hat 8.3 install error
by suporte＠logicworks.pt
I'm trying to install a RH 8.3 VM, but during installation always get this error:
anaconda 33.16.3.26 exception report
Traceback (most recent call first):
File "/usr/lib/python3.6/site-packages/dasbus/client/handler.py", line 497, in _handle_method_error
raise exception from None
File "/usr/lib/python3.6/site-packages/dasbus/client/handler.py", line 477, in _get_method_reply
return self._handle_method_error(error)
File "/usr/lib/python3.6/site-packages/dasbus/client/handler.py", line 447, in _call_method
**kwargs,
No problem when installing Centos 8.3
Ovirt version Version 4.4.4.7-1.el8
Any idea?
Thanks
--
Jose Ferradeira
http://www.logicworks.pt
4 years, 2 months
split brain scenario?
by Henry lol
Hi,
according to HA VM documentation, a paused VM may be started on another
host and later resumed on the original host.
- https://www.ovirt.org/develop/ha-vms.html
here, I'm assuming the HA VM was paused due to I/O error.
but I'm wondering how it can happen because I guess the HA VM will be
restarted on another host only after it's completely killed from the
original host.
can you give the split brain scenario?
4 years, 2 months
How to configure Power Management Fence Protocol for Libvirtd VM ?
by tommy
Hi, everyone:
My test env is running on Ubuntu Libvirtd server, I configure the QEMU VM as
Physical Host, the hosts list is:
root@ubts1:~# virsh
Welcome to virsh, the virtualization interactive terminal.
Type: 'help' for help with commands
'quit' to quit
virsh # list
Id Name State
---------------------------
24 3.ooengh1 running
25 3.ooengh2 running
root@ubts2:~# virsh
Welcome to virsh, the virtualization interactive terminal.
Type: 'help' for help with commands
'quit' to quit
virsh # list
Id Name State
--------------------------
26 3.ohost1 running
27 3.ohost2 running
28 3.ohost3 running
The ooengh1 and ooengh2 are configured for hosted-engine, and ohst1 ohost2
ohost3 are configured for KVM server.
Now, I want to test the Power Management service using my test env, how can
I choose the fence protocol ?
4 years, 2 months
