Install oVirt in CentOS 7 Node
by FERNANDO FREDIANI
Hi.
I have a host which I installed a Minimal CentOS 7 and turned into a
oVirt Node therefore it didn't come with Cockpit installed and
configured as it does in the oVirt-Node-NG.
Comparing both types of Hosts I have the following packages below in
each scenario.
The only package missing between both is "cockpit-ovirt-dashboard".
However I have already tried to install it and it was unable to show up
the Virtual Machines correctly and control them. Is any specific or
custom configuration needed in the cockpit config files to make it work
properly ?
- oVirt-Node-NG host:
cockpit-ws-130-1.el7.centos.x86_64
cockpit-docker-130-1.el7.centos.x86_64
cockpit-ovirt-dashboard-0.10.7-0.0.6.el7.centos.noarch
cockpit-system-130-1.el7.centos.noarch
cockpit-networkmanager-130-1.el7.centos.noarch
cockpit-storaged-130-1.el7.centos.noarch
cockpit-130-1.el7.centos.x86_64
cockpit-bridge-130-1.el7.centos.x86_64
cockpit-dashboard-130-1.el7.centos.x86_64
- CentOS 7 Minimal install
cockpit-system-141-3.el7.centos.noarch
cockpit-ws-141-3.el7.centos.x86_64
cockpit-docker-141-3.el7.centos.x86_64
cockpit-dashboard-141-3.el7.centos.x86_64
cockpit-141-3.el7.centos.x86_64
cockpit-bridge-141-3.el7.centos.x86_64
cockpit-storaged-141-3.el7.centos.noarch
cockpit-networkmanager-141-3.el7.centos.noarch
Thanks
Fernando
7 years, 2 months
move disk and lv not removed
by Gianluca Cecchi
Hello,
on an FC based environment I have a powered off VM
Select VM --> disks subtab --> select one disk of 20Gb
move
at the end of the move apparently all went ok, but right after the
"finished moving.." event I also get this error event
VDSM host1 command HSMGetAllTasksStatusesVDS failed: Cannot remove Logical
Volume: (['Cannot remove Logical Volume:
(u\'c5d360f5-cd90-4b3e-bdef-924649bfbc5f\',
"[\'2255c544-165b-4126-86ee-70e6d1edef9a\']")'],)
After that I also do the same for another disk of the same VM with size
80Gb and it completes ok, without the same event error.
So the problem doesn't occur always
It seem to me that the old disk (aka old lv) has remained as a left over.
And in fact the source storage domain doesn't show 20Gb of more free
space...
>From the SPM host
# lvs | egrep "VG|2255c544-165b-4126-86ee-70e6d1edef9a"
LV VG
Attr LSize Pool Origin Data% Meta% Move Log
Cpy%Sync Convert
2255c544-165b-4126-86ee-70e6d1edef9a 072feb00-bc16-416d-9a23-39bde9cd3a94
-wi------- 20.00g
2255c544-165b-4126-86ee-70e6d1edef9a c5d360f5-cd90-4b3e-bdef-924649bfbc5f
-wi-ao---- 20.00g
#
So it seems I have both the old LV on the original VG
(2255c544-165b-4126-86ee-70e6d1edef9a) and the LV on the VG related to the
target storage domain
Is there any bug opened for this? How can I clean situation?
Thanks,
Gianluca
7 years, 2 months
Host fencing issues
by Fernando Fuentes
Hello Team,
I updated one of my host on my cluster and after it finish and try to
activate the host it quickly claimed that the host was unresponsive and
it fenced the host... Now every time I try to activate the host it
clames that is unresponsive and proceeds to fence it... This was not
happening before the update....
The host is reachable with no problems nor issues...
Any ideas?
Centos 7.4 x86_64 host.
Attached is the vdsm log
engine is oVirt Engine Version: 4.0.2.6-1.el7.centos
Regards,
--
Fernando Fuentes
ffuentes(a)txweather.org
http://www.txweather.org
7 years, 2 months
User cannot create VMs having sufficient permissions to do so
by nicolas＠devels.es
Hi,
We're running ovirt-4.1.6.2-1. We have a user that logs into the user
portal and tries to create a VM, but a message claiming that "There is
no Cluster on which you can create a VM. Please check Data Center status
and Cluster permissions." shows up.
However, this user has permissions on the cluster (both VmCreator and
DiskProfileUser, and also has a Quota created on the Cluster which
allows him to create VMs).
When clicking on the 'New VM' button, all we see in the engine.log is:
2017-10-18 10:59:31,825+01 ERROR
[org.ovirt.engine.core.bll.GetAllLabelsQuery] (default task-103)
[c23549c6-37a4-48d7-923d-6618e027cdca] Query execution failed due to
insufficient permissions.
This user has pretty much the same permissions as thousands of users who
can create VMs, but this one can't.
How can we debug what's happening and how to solve it?
Thanks.
7 years, 2 months
Hosted Engine storage on management IP
by TranceWorldLogic .
Hi,
I was trying to setup separate gluster network in ovirt.
But I saw hosted-storage volume which I had created for hosted-engine still
running on managment network.
Can I move that hosted-storage gluster volume on gluster network ?
Thanks,
~Rohit
7 years, 2 months
Unresponsive instance
by JC Clark
Dear Team,
After a power failure and restart, one of my instances would not display
properly from the Ovirt User Portal.
This error would scroll down the screen repeatly to infinitum.
XFS (dm-0): Metadata CRC error detected at
xfs_inobt_read_verify+0x79/0xb0 [xfs], xfs_inobt block 0x1df188
XFS (dm-0): Unmount and run xfs_repair
XFS (dm-0): First 64 bytes of corrupted metadata buffer:
(Hex Dump)
I detached the boot disk and attached to another instance and ran
xfs_repair on it, to no avail.
The instance boots fine and I am able to access via XRDP.
When I try to access via spice or VNC I get the error.
Suggestions?
Thanks
7 years, 2 months
Ovirt + Cobbler + Koan ?
by ~Stack~
This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
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Content-Type: multipart/mixed; boundary="jnv20pK7DOg57ejKuBIKqsGwTAjdcS9cT";
protected-headers="v1"
From: ~Stack~ <i.am.stack(a)gmail.com>
To: users <users(a)ovirt.org>
Message-ID: <6774f104-80dc-f7f2-52f9-7ce012432fd6(a)gmail.com>
Subject: Ovirt + Cobbler + Koan ?
--jnv20pK7DOg57ejKuBIKqsGwTAjdcS9cT
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: quoted-printable
Greetings,
I've spent the last week trying to get Foreman to work (see SSL question
2017-10-11) but no one answers in their IRC or mailing list. So I tried
cobbler instead and I had it working in just a couple of hours! I'm
further along today than a week of foreman's constant problems. Hooray!
Here's where I am at now, if I manually configure a VM in Ovirt I can
provision it from Cobbler. Great!
What I would like to do is to have an easy way from Ovirt say "Grab this
cobbler profile and build me a new VM with this template". In my
searches on line, I haven't found anything like that. It seems the
closest I'm going to get is to use Koan. However, I've not found great
information for using Koan with Ovirt. My attempts so far of installing
Koan on the Ovirt Management host and trying to get it to provision have
all resulted in Koan trying to build a KVM _on_ the management host; not
in Ovirt.
Does anyone have any good documentation for setting up Cobbler
integration into Ovirt? Or at least getting Koan to work with the two?
Thanks!
~Stack~
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7 years, 2 months
GlusterFS performance questions
by Jayme
I am currently in the process of researching converting an existing SMB
infra to virtual. Ovirt/RHEV is a strong contender and checks off a lot
of boxes on our list. GlusterFS is appealing but I am finding it very
difficult to find any answers or stats/numbers regarding how well it can
perform as backend storage for VMs, especially VMs with medium to high
workloads, and possibly some or many in a dev environment where many small
files are interacted with very frequently.
>From my research on GlusterFS in general some people tend to say that it is
not the best performer and it's not the best choice for handling small
files. How true is this?
I understand that there are many variables such as hardware, drives, proper
configuration, internal network etc. but what I'm trying to avoid here is
going through the whole process of spendng a lot of money building out an
ovirt gluster with a proper SSD glusterFS configuration w/ 10gbe internal
network only to find out some day down the road that it cannot meet our I/O
needs.
Can anyone comment on how I can best determine the performance level to
expect from a typical ovrt w/ glusterfs replica 3 arbiter 1 configuration.
Or perhaps any use cases with people/companies running a similar setup in
production with high VM workloads?
Right now I'm leaning toward using a SAN due to the simplicity and
predictable performance. Although this will definitely cost a lot more
money for something that glusterFS *may* be able to handle.
Thanks!
James
7 years, 2 months
FOSDEM18 Virt & IaaS Devroom CFP
by Piotr Kliczewski
On behalf of oVirt and the Xen Project, we are excited to announce that the
call for proposals is now open for the Virtualization & IaaS devroom at the
upcoming FOSDEM 2018, to be hosted on February 3 and 4, 2017.
This year will mark FOSDEM’s 18th anniversary as one of the longest-running
free and open source software developer events, attracting thousands of
developers and users from all over the world. FOSDEM will be held once
again in Brussels, Belgium, on February 3 & 4, 2018.
This devroom is a collaborative effort, and is organized by dedicated folks
from projects such as OpenStack, Xen Project,, oVirt, QEMU, and
Foreman. We would like to invite all those who are involved in these fields
to submit your proposals by December 1st, 2017.
About the Devroom
The Virtualization & IaaS devroom will feature session topics such as open
source hypervisors and virtual machine managers such as Xen Project, KVM,
bhyve, and VirtualBox, and Infrastructure-as-a-Service projects such as
Apache CloudStack, OpenStack, oVirt, QEMU, OpenNebula, and Ganeti.
This devroom will host presentations that focus on topics of shared
interest, such as KVM; libvirt; shared storage; virtualized networking;
cloud security; clustering and high availability; interfacing with multiple
hypervisors; hyperconverged deployments; and scaling across hundreds or
thousands of servers.
Presentations in this devroom will be aimed at developers working on these
platforms who are looking to collaborate and improve shared infrastructure
or solve common problems. We seek topics that encourage dialog between
projects and continued work post-FOSDEM.
Important Dates
Submission deadline: 01 December 2017
Acceptance notifications: 14 December 2017
Final schedule announcement: 21 December 2017
Devroom: 03 and 04 February 2018 (two days- different rooms)
Submit Your Proposal
All submissions must be made via the Pentabarf event planning site[1]. If
you have not used Pentabarf before, you will need to create an account. If
you submitted proposals for FOSDEM in previous years, you can use your
existing account.
After creating the account, select Create Event to start the submission
process. Make sure to select Virtualization and IaaS devroom from the Track
list. Please fill out all the required fields, and provide a meaningful
abstract and description of your proposed session.
Submission Guidelines
We expect more proposals than we can possibly accept, so it is vitally
important that you submit your proposal on or before the deadline. Late
submissions are unlikely to be considered.
All presentation slots are 45 minutes, with 35 minutes planned for
presentations, and 10 minutes for Q&A.
All presentations will be recorded and made available under Creative
Commons licenses. In the Submission notes field, please indicate that you
agree that your presentation will be licensed under the CC-By-SA-4.0 or
CC-By-4.0 license and that you agree to have your presentation recorded.
For example:
"If my presentation is accepted for FOSDEM, I hereby agree to license all
recordings, slides, and other associated materials under the Creative
Commons Attribution Share-Alike 4.0 International License. Sincerely,
<NAME>."
In the Submission notes field, please also confirm that if your talk is
accepted, you will be able to attend FOSDEM and deliver your presentation.
We will not consider proposals from prospective speakers who are unsure
whether they will be able to secure funds for travel and lodging to attend
FOSDEM. (Sadly, we are not able to offer travel funding for prospective
speakers.)
Speaker Mentoring Program
As a part of the rising efforts to grow our communities and encourage a
diverse and inclusive conference ecosystem, we're happy to announce that
we'll be offering mentoring for new speakers. Our mentors can help you with
tasks such as reviewing your abstract, reviewing your presentation outline
or slides, or practicing your talk with you.
You may apply to the mentoring program as a newcomer speaker if you:
Never presented before or
Presented only lightning talks or
Presented full-length talks at small meetups (<50 ppl)
Submission Guidelines
Mentored presentations will have 25-minute slots, where 20 minutes will
include the presentation and 5 minutes will be reserved for questions.
The number of newcomer session slots is limited, so we will probably not be
able to accept all applications.
You must submit your talk and abstract to apply for the mentoring program,
our mentors are volunteering their time and will happily provide feedback
but won't write your presentation for you!
If you are experiencing problems with Pentabarf, the proposal submission
interface, or have other questions, you can email our devroom mailing
list[2] and we will try to help you.
How to Apply
In addition to agreeing to video recording and confirming that you can
attend FOSDEM in case your session is accepted, please write "speaker
mentoring program application" in the "Submission notes" field, and list
any prior speaking experience or other relevant information for your
application.
Call for Mentors
Interested in mentoring newcomer speakers? We'd love to have your help!
Please email iaas-virt-devroom at lists.fosdem.org with a short speaker
biography and any specific fields of expertise (for example, KVM,
OpenStack, storage, etc.) so that we can match you with a newcomer speaker
from a similar field. Estimated time investment can be as low as a 5-10
hours in total, usually distributed weekly or bi-weekly.
Never mentored a newcomer speaker but interested to try? As the mentoring
program coordinator, email Brian Proffitt[3] and he will be happy to answer
your questions!
Code of Conduct
Following the release of the updated code of conduct for FOSDEM, we'd like
to remind all speakers and attendees that all of the presentations and
discussions in our devroom are held under the guidelines set in the CoC and
we expect attendees, speakers, and volunteers to follow the CoC at all
times.
If you submit a proposal and it is accepted, you will be required to
confirm that you accept the FOSDEM CoC. If you have any questions about the
CoC or wish to have one of the devroom organizers review your presentation
slides or any other content for CoC compliance, please email us and we will
do our best to assist you.
Call for Volunteers
We are also looking for volunteers to help run the devroom. We need
assistance watching time for the speakers, and helping with video for the
devroom. Please contact me, Brian Proffitt, for more information.
Questions?
If you have any questions about this devroom, please send your questions to
our devroom mailing list. You can also subscribe to the list to receive
updates about important dates, session announcements, and to connect with
other attendees.
See you all at FOSDEM!
[1] <https://penta.fosdem.org/submission/FOSDEM17>
https://penta.fosdem.org/submission/FOSDEM18
[2] iaas-virt-devroom at lists.fosdem.org
<https://lists.fosdem.org/listinfo/fosdem>[3] bkp at redhat.com
<https://lists.fosdem.org/listinfo/fosdem>
7 years, 2 months
