Is there a way hot to reserve MAC address ?
by Michal Mocnak
Hey Guys,
is there a way how to reserve MAC address for VMs created from the pool ? I have a workaround via ansible playbook which works fine but I am wondering if there is any other solution how to achieve this.
And btw if i use predefined instance type other than Custom there are no network interfaces in newly created machines. Is it right behavior ?
Thank you so much !! Cheers
-m
4 years, 2 months
'python-nftables' failed. There is a big problem with Firewalld and openvswitch on Centos 8.3
by Сергей Шопин
I have deployed a new cluster on versions:
3 Hosts: Centos 8.3 and last update
Ovirt: 4.4.4.7-1.el8
Cluster properties: switch - OVS; Firewall - Firewalld
During the initial deployment of the host in such a cluster, everything is successfully installed, all virtual networks and bridges are created, and the host is activated.
But after that, Firewalld does not work correctly, for example, when executing the command
firewall-cmd --reload
Issued by:
Error: COMMAND_FAILED: 'python-nftables' failed:
JSON blob:
{"nftables": [{"metainfo": {"json_schema_version": 1}}, {"add": {"table": {"family": "inet", "name": "firewalld_policy_drop"}}}, {"add": {"chain": {"family": "inet", "table": "firewalld_policy_drop", "name": "filter_input", "type": "filter", "hook": "input", "prio": 9, "policy": "drop"}}}, {"add": {"chain": {"family": "inet", "table": "firewalld_policy_drop", "name": "filter_forward", "type": "filter", "hook": "forward", "prio": 9, "policy": "drop"}}}, {"add": {"chain": {"family": "inet", "table": "firewalld_policy_drop", "name": "filter_output", "type": "filter", "hook": "output", "prio": 9, "policy": "drop"}}}, {"add": {"rule": {"family": "inet", "table": "firewalld_policy_drop", "chain": "filter_input", "expr": [{"match": {"left": {"ct": {"key": "state"}}, "op": "in", "right": {"set": ["established", "related"]}}}, {"accept": null}]}}}, {"add": {"rule": {"family": "inet", "table": "firewalld_policy_drop", "chain": "filter_forward", "expr": [{"match": {"left": {"ct": {"key": "state"}}, "op": "in", "right": {"set": ["established", "related"]}}}, {"accept": null}]}}}, {"add": {"rule": {"family": "inet", "table": "firewalld_policy_drop", "chain": "filter_output", "expr": [{"match": {"left": {"ct": {"key": "state"}}, "op": "in", "right": {"set": ["established", "related"]}}}, {"accept": null}]}}}]}
Now all ansible-playbook ovirt starts to execute uncorrectly
For example this error is thrown every time I try to reinstall the host:
VDSM SMnode02 command CollectVdsNetworkDataAfterInstallationVDS failed: Internal JSON-RPC error: {'reason': ’management’}
I understand that ovirt correctly executes scripts, and this problem is related to the applications Firewalld, openvswitch, NetworkManager.
Is there some workaround so that at least ovirt can re-install hosts?
4 years, 2 months
Unable to ping host from VM's or VM's from host
by David Johnson
I have a brand new Ovirt 4.5 cluster on centos 8 and brand new hardware.
I have a set of VM's, some of whom I have been able to connect to in the
past, others that I have never been able to connect to other than with the
SPICE console ui.
Right now, I am unable to connect from outside my cluster to any of the
VPN's other than through the SPICE console.
Host IP: 192.168.2.188 Physical Address
Example VM IP: 10.21.10.101 with vLAN tag
Works:
* I can connect between vm's on the same subnet on the same VM.
When logged into 10.21.10.101 I can ping 10.21.10.100
Doesn't work:
* I cannot connect from VM's to the host.
* I cannot connect from the host to VM's
PING 10.21.10.100 (10.21.10.100) 56(84) bytes of data.
From <<internet gateway>> icmp_seq=1 Destination Host Unreachable
* I cannot connect from the VM's to the internet gateway
* I cannot connect to the VM's from other systems on the physical network
"Destination Host Unreachable"
To me it looks like the virtual bridge is misconfigured, but I can't figure
out how to reconfigure it.
Any assistance would be greatly appreciated.
Regards,
David Johnson
4 years, 2 months
oVirt initramfs regeneration
by Robert Tongue
Is it possible to force an initramfs regeneration in oVirt Node 4.4.4? I am doing some advanced partitioning and cannot seem to figure out how to properly do that if it's even possible. Thanks.
-phunyguy
4 years, 2 months
Geographically-distrbuted Ovirt Cluster?
by Derek Atkins
Hi,
Right now I run a 1-server hyperconverged hosted-engine deployment. Other
than requiring systemwide downtime to perform host maintenance, it has
worked fairly well for me over the past few years. However, after a
couple power and upstream-network outages, there have been questions about
the ability to "distribute the load", so to speak. Considering what our
workload is (main git repo, wiki, email list + archives, etc), it can't
easily be distributed by a periodic resync and DNS round robin like a
static web site.
To solve this distribution problem I was wondering if there might be some
way to deploy a handful of physical servers in different geographic
locations that work together to create an HE environment for guest VMs?
My initial fear would be that it would require dedicated 1Gb (or higher)
between the sites to move data? Let's say we do NOT have that level of
connectivity.
I saw something about geographic replication in Gluster? But that would
seem to be more about replicating a local cluster to a remote cluster?
I suspect the answer is: no, a cluster must all be physically co-located.
But I figured I would ask the experts.
Thanks all for your insights.
-derek
--
Derek Atkins 617-623-3745
derek(a)ihtfp.com www.ihtfp.com
Computer and Internet Security Consultant
4 years, 2 months
CentOS Stream support
by Michal Skrivanek
Hi all,
we would like to ask about interest in community about oVirt moving to CentOS Stream.
There were some requests before but it’s hard to see how many people would really like to see that.
With CentOS releases lagging behind RHEL for months it’s interesting to consider moving to CentOS Stream as it is much more up to date and allows us to fix bugs faster, with less workarounds and overhead for maintaining old code. E.g. our current integration tests do not really pass on CentOS 8.1 and we can’t really do much about that other than wait for more up to date packages. It would also bring us closer to make oVirt run smoothly on RHEL as that is also much closer to Stream than it is to outdated CentOS.
So..would you like us to support CentOS Stream?
We don’t really have capacity to run 3 different platforms, would you still want oVirt to support CentOS Stream if it means “less support” for regular CentOS?
There are some concerns about Stream being a bit less stable, do you share those concerns?
Thank you for your comments,
michal
4 years, 2 months
ovirt node based on centos 8 stream
by Nathanaël Blanchet
Hi all,
I project to upgrade from 4.3 to 4.4 hosts in the next few days, and I
wonder if ovirt node based on centos 8.3 will be upgradable to ovirt
node based on centos stream.
If not, I will wait to upgrade directly to ovirt node centos stream
based when available.
--
Nathanaël Blanchet
Supervision réseau
SIRE
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5
Tél. 33 (0)4 67 54 84 55
Fax 33 (0)4 67 54 84 14
blanchet(a)abes.fr
4 years, 2 months
