[Users] oVirt Workshop at LinuxCon Japan 2012
by Leslie Hawthorn
Hello everyone,
As part of our efforts to raise awareness of and educate more developers
about the oVirt project, we will be holding an oVirt workshop at
LinuxCon Japan, taking place on June 8, 2012. You can find full details
of the workshop agenda on the LinuxCon Japan site. [0]
Registration for the workshop is now open and is free of charge for the
first 50 participants. We will also look at adding additional
participant slots to the workshop based on demand.
Attendees who register for LinuxCon Japan via the workshop registration
link [1] will also be eligible for a discount on their LinuxCon Japan
registration.
Please spread the word to folks you think would find the workshop
useful. If they have already registered for LinuxCon Japan, they can
simply edit their existing registration to include the workshop.
[0] -
https://events.linuxfoundation.org/events/linuxcon-japan/ovirt-gluster-wo...
[1] - http://www.regonline.com/Register/Checkin.aspx?EventID=1099949
Cheers,
LH
--
Leslie Hawthorn
Community Action and Impact
Open Source and Standards @ Red Hat
identi.ca/lh
twitter.com/lhawthorn
5 years
Re: huge page in ovirt 4.2.7
by Sharon Gratch
Hi Fabrice,
The "hugepages" custom property value in oVirt should be set to *size of
the pages in KiB* (i.e. 1GiB = 1048576, 2MiB = 2048).
In addition, it is recommended to set the huge page size of the VM to the
largest size supported by the host.
In the configuration you sent, the huge page size of the VM is set to 64
KiB and since the VM's allocated memory size is at least 32,768 MiB then it
requires at least (32768 * 1024/64=) 524,288 pages. Since you only have 120
pages declared in the host then it failed with an error "...there are not
enough free huge pages to run the VM".
So to solve the problem, please change the VM's huge page size to be the
same as the host's huge page supported size which is 1GiB and therefore
hugepages value should be 1048576 KiB instead of 64:
<custom_property>
<name>hugepages</name>
<value>*1048576*</value>
</custom_property>
Please note that since total VM's memory size is no more than 64 GB then
only 64 pages will be needed by the VM and it's < 120 pages supported by
the host and therefore OK.
Hope it helped.
Regards,
Sharon
On Wed, Nov 14, 2018 at 2:11 PM, Fabrice Bacchella <
fabrice.bacchella(a)orange.fr> wrote:
> I'm trying to understand huge page in oVirt, I'm quite sure to understand
> it well.
>
> I have an host with 128GiB. I have configured reserved huge page:
>
> cat /proc/cmdline
>
> ... hugepagesz=1GB hugepages=120
>
> $ grep -r . /sys/kernel/mm/hugepages
> /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_overcommit_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages:120
> /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages_mempolicy:120
> /sys/kernel/mm/hugepages/hugepages-1048576kB/surplus_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-1048576kB/resv_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-1048576kB/free_hugepages:120
> /sys/kernel/mm/hugepages/hugepages-2048kB/nr_overcommit_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages_mempolicy:0
> /sys/kernel/mm/hugepages/hugepages-2048kB/surplus_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-2048kB/resv_hugepages:0
> /sys/kernel/mm/hugepages/hugepages-2048kB/free_hugepages:0
>
> I have a big VM running on it:
> <custom_properties>
> <custom_property>
> <name>hugepages</name>
> <value>64</value>
> </custom_property>
> </custom_properties>
> <memory>68719476736</memory>, aka 65536 MiB
> <memory_policy>
> <guaranteed>34359738368</guaranteed>, aka 32768 MiB
> <max>68719476736</max>
> </memory_policy>
>
> And it keep failing when I want to start it:
> /var/log/ovirt-engine/engine.log:2018-11-14 12:56:06,937+01 ERROR
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
> (default task-66) [13c13a2c-f973-4ba2-b8bd-260e5b35a047] EVENT_ID:
> USER_FAILED_RUN_VM(54), Failed to run VM XXX due to a failed validation:
> [Cannot run VM. There is no host that satisfies current scheduling
> constraints. See below for details:, The host XXX did not satisfy internal
> filter HugePages because there are not enough free huge pages to run the
> VM.]
>
> The huge page fs is mounted:
>
> $ findmnt
> | |-/dev/hugepages1G hugetlbfs
> hugetlbfs rw,relatime,pagesize=1G
> | `-/dev/hugepages hugetlbfs
> hugetlbfs rw,relatime
>
> What am I missing ?
>
> _______________________________________________
> Users mailing list -- users(a)ovirt.org
> To unsubscribe send an email to users-leave(a)ovirt.org
> Privacy Statement: https://www.ovirt.org/site/privacy-policy/
> oVirt Code of Conduct: https://www.ovirt.org/communit
> y/about/community-guidelines/
> List Archives: https://lists.ovirt.org/archiv
> es/list/users(a)ovirt.org/message/VTYKTSSAXQQLS5HO5KOQSBDIHPTAHTOR/
>
>
5 years
Re: ERROR running your engine inside of the hosted-engine VM and are not in "Global Maintenance" mode
by Simone Tiraboschi
On Tue, Feb 5, 2019 at 1:46 PM Martin Humaj <mhumaj(a)gmail.com> wrote:
> Hi the problem is that ovirt-engine is running on different vm like a
> virtual machine under the hosts
>
> !! Cluster is in GLOBAL MAINTENANCE mode !!
> I can set it on the host machine but not on the ovirt-engine vm
>
>
Sorry,
one thing more to mention: the check is performed against the latest
information recorded in the DB.
So if the engine is down, it's not going to update the DB and so it will
never update the global maintenance status field.
If you are sure that you are in global maintenance mode and you want to
skip at all the check you can execute:
engine-setup
--otopi-environment=OVESETUP_CONFIG/continueSetupOnHEVM=bool:True
>
>
>
>
> On Tue, Feb 5, 2019 at 1:28 PM Simone Tiraboschi <stirabos(a)redhat.com>
> wrote:
>
>>
>>
>> On Tue, Feb 5, 2019 at 12:31 PM <mhumaj(a)gmail.com> wrote:
>>
>>> Hi,
>>>
>>> We run ovirt upgrade to 4.3, after upgrade we wanted to run engine-setup
>>> but we do not know how to put this host which is simply another virtual
>>> machine with ovirt-engine. hosted-engine is running on hosts.
>>>
>>> During execution engine service will be stopped (OK, Cancel)
>>> [OK]:
>>> [ ERROR ] It seems that you are running your engine inside of the
>>> hosted-engine VM and are not in "Global Maintenance" mode.
>>> In that case you should put the system into the "Global
>>> Maintenance" mode before running engine-setup, or the hosted-engine HA
>>> agent might kill the machine, which might corrupt your data.
>>>
>>> [ ERROR ] Failed to execute stage 'Setup validation': Hosted Engine
>>> setup detected, but Global Maintenance is not set.
>>> [ INFO ] Stage: Clean up
>>> Log file is located at
>>> /var/log/ovirt-engine/setup/ovirt-engine-setup-20190205121802-l7llrw.log
>>> [ INFO ] Generating answer file
>>> '/var/lib/ovirt-engine/setup/answers/20190205121855-setup.conf'
>>> [ INFO ] Stage: Pre-termination
>>> [ INFO ] Stage: Termination
>>> [ ERROR ] Execution of setup failed
>>>
>>> from the hosted nodes
>>>
>>> --== Host 2 status ==--
>>>
>>> Host ID : 2
>>> Engine status : {"reason": "vm not running on this
>>> host", "health": "bad", "vm": "down", "detail": "unknown"}
>>> Can anyone please tell me how to put the global maintenance on virtual
>>> machine where the ovirt-engine is? not the hosts even if I put them on the
>>> global maintenance I am unable to run engine-setup on vm with ovirt-enging.
>>>
>>
>> Run this one one of your hosts:
>> hosted-engine --set-maintenance --mode=global
>> or from the webadmin UI, as you prefer.
>>
>>
>>>
>>> thanks
>>> _______________________________________________
>>> Users mailing list -- users(a)ovirt.org
>>> To unsubscribe send an email to users-leave(a)ovirt.org
>>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/
>>> oVirt Code of Conduct:
>>> https://www.ovirt.org/community/about/community-guidelines/
>>> List Archives:
>>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/3YJQVUDKVC2...
>>>
>>
5 years
4.3 rc2: info about shutdown of last host and networking page
by Gianluca Cecchi
Hello,
env with single host HCI deployment from node ng iso
After powering off VMs, put into global maintenance, shutdown hosted
engine, I then run shutdown on host. This I think would simulate also a
total shutdown scenario when you have the final step of shutdown of the
final host.
This is what I see in console about failure in several unmounts, both /var
and /var/log and also gluster related filesystems
Could there be any dependency problem?
See here the screenshot:
https://drive.google.com/file/d/1wqqXlmT66hHLJ8DMcwfPvDXJHkWm_ijE/view?us...
Also I have not understood the networking page of host in Cockpit:
https://drive.google.com/file/d/1isX4F8qPcFmTyhmCVnZadhp6NY0R9Sy7/view?us...
in my scenario I was downloading a 1Gb image for the CentOS Atomic host
from public glance repo.
Questions:
- how to explain the receiving box graph? What are the different color
lines for?
- In "receiving" column inside the "interfaces" sections I see all "0" for
gluster one (eth1) and empty (no value) for ovirtmgmt (perhaps because it
is unmanaged from host point of view?)
Also, it seems to me that the temporary bridge for hosted engine deployment
on 192.168.124.0 (virbr0) is still there even after finishing the
deployment, even if with "no carrier"... is this expected?
Better perhaps to undefine the network after deployment?
Gianluca
5 years
Agentless Backup update: Trilio Vault...what a joke, pay $7500
by femi adegoke
Back in June of 2018, I posted regarding Agentless backup solutions.
Greg Sheremeta replied & mentioned Trilio.
The rest of the story...well just read on...
These guys at Trilio have turned out to be a complete waste of time. (I could use some more colorful language)
After my post & reply from Greg Sheremeta, I followed up with Trilio.
A lot of promises/dates were made (by Trilio) as to when a beta would be made available for testing.
Needless to say, they never came through.
Finally in Dec 2018, they said we are ready for the demo, we will show you a working product.
The day came, Trilio said, sorry it's too close to Xmas, we will postpone the demo's till 2019.
In 2019, I continued to follow up & finally they set a date for another demo - Jan 29.
On Jan. 29, we get on the Webex, they said, sorry the demo just broke 10 mins prior to our call, so no demo.
They show me some screenshots & their OpenStack version & again promise to get me beta software in a few days.
I continue to follow up (via email)
Yesterday (Feb 6), I get an email from Thomas Lahive GM; Sales and Alliance Partners....(copied & pasted below):
"We started RHV betas and decided to prioritize current Trilio customers (those that purchased Triliovault for Openstack).
If you would like to be part of the beta now then We can sign you up as a certified Trilio reseller which has a $7,500 Starter Fee. The $7,500 will be credited against your first customer order that is at least $7,500 so it will eventually cost you nothing. Many of our partners can apply the fee against revenue so it's a great tax incentive, but you can confirm with your finance department.
Please Lmk how you would like to proceed."
Please remember, I have never seen a working demo of this product, never.
Is this typical behavior of RH partners?
5 years
[Users] Moving iSCSI Master Data
by rni＠chef.net
--========GMXBoundary282021374122634158505
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
Hi,
it's me again....
I started my oVirt 'project' as a proof of concept,.. but it happend as always, it became production
Now, I've to move the iSCSI Master data to the real iSCSI traget.
Is there any way to do this, and to become rid of the old Master Data?
Thank you for your help
Hans-Joachim
--========GMXBoundary282021374122634158505
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
<span style=3D'font-family:Verdana'><span style=3D'font-size:12px'>Hi,<br /=
><br />it's me again....<br /><br />I started my oVirt 'project' as a proof=
of concept,.. but it happend as always, it became production <img alt=
=3D" " title=3D" " src=3D"http://images.gmx.com/images/outsource/applicatio=
n/mailclient/mailcom/resource/mailclient/icons/blue/emoticons/animated/S_02=
-516742918.gif" /><br /><br />Now, I've to move the iSCSI Master data to th=
e real iSCSI traget.<br />Is there any way to do this, and to become rid of=
the old Master Data?<br /><br /><span id=3D"editor_signature">Thank you fo=
r your help</span><br /><br />Hans-Joachim</span></span>
--========GMXBoundary282021374122634158505--
5 years
Changing Ovirt hosted engine memory
by Dionysis K
Hello! i am new user to ovirt and i was trying to increase the memory of the hosted engine from 5120 MB to 10240 MB and the reports on the events are those bellow, the environment the hosted engine runs is on 3 ovirt nodes with version 4.2.8 and the hosted engine is updates with the latest version, any ideas how to set up things
Failed to hot set memory to VM HostedEngine. Underlying error message: unsupported configuration: Attaching memory device with size '5242880' would exceed domain's maxMemory config
VDSM command SetAmountOfMemoryVDS failed: unsupported configuration: Attaching memory device with size '5242880' would exceed domain's maxMemory config
5 years, 1 month
Hosted Engine Storage migration
by joel+ovirt＠robisons.us
Hello listmembers!
I'm in search of some steps to use to migrate my Hosted-Engine from one NFS storage domain to another different NFS storage domain. One of the possible ways to accomplish this task may already be a feature with oVirt 4.1, I'm using 4.2
https://lists.ovirt.org/pipermail/users/2017-January/078739.html (New feature in 4.1?)
Will someone elaborate the steps to use this new feature and how I could use it to accomplish this task? the bug link in the email linked above has a comment (https://bugzilla.redhat.com/show_bug.cgi?id=1409112#c12) - does this mean I need to redeploy the hosted-engine? I'm not able to follow as I'm new to oVirt and still learning the ins and outs and design if I'm on the wrong path here please correct me.
Thank you,
-Joel
5 years, 1 month
Forum available
by Josep Manel Andrés Moscardó
Hi all,
I am just wondering if anyone like me would like to have everything that
is bump here in a forum, with all the benefits it brings (and people
will still be able to subscribe and reply through email). Something like
Discourse would be nice in my opinion.
Best.
5 years, 1 month
