All snapshots read only
by Colin Coe
Hi all
I've just noticed that all VM snapshots on one of our prod RHEV setups have
gone read-only (i.e. delete is greyed out).
Has anyone else seen this?
Is there an easy fix for this? We have a bunch of VVMs being snapshotted
nightly with snapshots being deleted after 7 days.
Thanks
CC
8 years, 2 months
Re: [ovirt-users] Host maintenance - VM migration logic
by Patrick Russell
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8 years, 2 months
Re: [ovirt-users] R: Re: Network instability after upgrade 3.6.0 -> 3.6.1
by Jon Archer
This is a multi-part message in MIME format.
--------------060204050902010701050107
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Content-Transfer-Encoding: 7bit
Hi Stefano,
It's definitely not the switch, it seems to be the latest kernel package
(kernel-3.10.0-327.3.1.el7.x86_64) which stops bonding working
correctly, reverting back to the previous kernel brings the network up
in 802.3ad mode (4).
I know, from reading the release notes of 7.2, that there were some
changes to the bonding bits in the kernel so i'm guessing maybe some
defaults have changed.
I'll keep digging and post back as soon as i have something.
Jon
On 29/12/15 19:55, Stefano Danzi wrote:
> Hi! I didn't solve yet. I'm still using mode 2 on bond interface.
> What's your switch model and firmware version?
>
> -------- Messaggio originale --------
> Da: Jon Archer <jon(a)rosslug.org.uk>
> Data: 29/12/2015 19:26 (GMT+01:00)
> A: users(a)ovirt.org
> Oggetto: Re: [ovirt-users] Network instability after upgrade 3.6.0 ->
> 3.6.1
>
> Stefano,
>
> I am currently experiencing the same issue. 2x nic lacp config at
> switch, mode 4 bond at server with no connectivity. Interestingly I am
> able to ping the switch itself.
>
> I haven't had time to investigate thoroughly but my first thought is
> an update somewhere.
>
> Did you ever resolve and get back to mode=4?
>
> Jon
>
> On 17 December 2015 17:51:50 GMT+00:00, Stefano Danzi
> <s.danzi(a)hawai.it> wrote:
>
> I partially solve the problem.
>
> My host machine has 2 network interfaces with a bond. The bond was
> configured with mode=4 (802.3ad) and switch was configured in the same way.
> If I remove one network cable the network become stable. With both
> cables attached the network is instable.
>
> I removed the link aggregation configuration from switch and change the
> bond in mode=2 (balance-xor). Now the network are stable.
> The strange thing is that previous configuration worked fine for one
> year... since the last upgrade.
>
> Now ha-agent don't reboot the hosted-engine anymore, but I receive two
> emails from brocker evere 2/5 minutes.
> First a mail with "ovirt-hosted-engine state transition
> StartState-ReinitializeFSM" and after "ovirt-hosted-engine state
> transition ReinitializeFSM-EngineStarting"
>
>
> Il 17/12/2015 10.51, Stefano Danzi ha scritto:
>
> Hello, I have one testing host (only one host) with self
> hosted engine and 2 VM (one linux and one windows). After
> upgrade ovirt from 3.6.0 to 3.6.1 the network connection works
> discontinuously. Every 10 minutes HA agent restart hosted
> engine VM because result down. But the machine is UP, only the
> network stop to work for some minutes. I activate global
> maintenace mode to prevent engine reboot. If I ssh to the
> hosted engine sometimes the connection work and sometimes no.
> Using VNC connection to engine I see that sometime VM reach
> external network and sometimes no. If I do a tcpdump on
> phisical ethernet interface I don't see any packet when
> network on vm don't work. Same thing happens fo others two VM.
> Before the upgrade I never had network problems.
> ------------------------------------------------------------------------
> Users mailing list Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
> ------------------------------------------------------------------------
>
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
> -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
--------------060204050902010701050107
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<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hi Stefano,<br>
<br>
It's definitely not the switch, it seems to be the latest kernel
package (kernel-3.10.0-327.3.1.el7.x86_64) which stops bonding
working correctly, reverting back to the previous kernel brings the
network up in 802.3ad mode (4).<br>
<br>
I know, from reading the release notes of 7.2, that there were some
changes to the bonding bits in the kernel so i'm guessing maybe some
defaults have changed.<br>
<br>
I'll keep digging and post back as soon as i have something.<br>
<br>
Jon<br>
<br>
<div class="moz-cite-prefix">On 29/12/15 19:55, Stefano Danzi wrote:<br>
</div>
<blockquote
cite="mid:yuu6vcix8xss464s04yxu6xv.1451418904304@email.android.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
Hi! I didn't solve yet. I'm still using mode 2 on bond interface.
What's your switch model and firmware version? <br>
<br>
-------- Messaggio originale --------<br>
Da: Jon Archer <a class="moz-txt-link-rfc2396E" href="mailto:jon@rosslug.org.uk"><jon(a)rosslug.org.uk></a> <br>
Data: 29/12/2015 19:26 (GMT+01:00) <br>
A: <a class="moz-txt-link-abbreviated" href="mailto:users@ovirt.org">users(a)ovirt.org</a> <br>
Oggetto: Re: [ovirt-users] Network instability after upgrade 3.6.0
-> 3.6.1 <br>
<br>
Stefano,<br>
<br>
I am currently experiencing the same issue. 2x nic lacp config at
switch, mode 4 bond at server with no connectivity. Interestingly
I am able to ping the switch itself.<br>
<br>
I haven't had time to investigate thoroughly but my first thought
is an update somewhere.<br>
<br>
Did you ever resolve and get back to mode=4?<br>
<br>
Jon<br>
<br>
<div class="gmail_quote">On 17 December 2015 17:51:50 GMT+00:00,
Stefano Danzi <a class="moz-txt-link-rfc2396E" href="mailto:s.danzi@hawai.it"><s.danzi(a)hawai.it></a> wrote:
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<pre class="k9mail">I partially solve the problem.
My host machine has 2 network interfaces with a bond. The bond was
configured with mode=4 (802.3ad) and switch was configured in the same way.
If I remove one network cable the network become stable. With both
cables attached the network is instable.
I removed the link aggregation configuration from switch and change the
bond in mode=2 (balance-xor). Now the network are stable.
The strange thing is that previous configuration worked fine for one
year... since the last upgrade.
Now ha-agent don't reboot the hosted-engine anymore, but I receive two
emails from brocker evere 2/5 minutes.
First a mail with "ovirt-hosted-engine state transition
StartState-ReinitializeFSM" and after "ovirt-hosted-engine state
transition ReinitializeFSM-EngineStarting"
Il 17/12/2015 10.51, Stefano Danzi ha scritto:
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Hello,
I have one testing host (only one host) with self hosted engine and 2
VM (one linux and one windows).
After upgrade ovirt from 3.6.0 to 3.6.1 the network connection works
discontinuously.
Every 10 minutes HA agent restart hosted engine VM because result
down. But the machine is UP,
only the network stop to work for some minutes.
I activate global maintenace mode to prevent engine reboot. If I ssh
to the hosted engine sometimes
the connection work and sometimes no. Using VNC connection to engine
I see that sometime VM reach external network
and sometimes no.
If I do a tcpdump on phisical ethernet interface I don't see any
packet when network on vm don't work.
Same thing happens fo others two VM.
Before the upgrade I never had network problems.
<hr>
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users(a)ovirt.org</a>
<a moz-do-not-send="true" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a></blockquote>
<hr>
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users(a)ovirt.org</a>
<a moz-do-not-send="true" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a>
</pre></blockquote></div>
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
</blockquote>
</body></html>
--------------060204050902010701050107--
8 years, 2 months
API: detailed quota information, where's it at?
by Tim Bielawa
I've been able to run the simple commands to enumerate quotas in a
datacenter, and to select a quota by name.
What I can not figure out how to do is how to receive detailed information
about a quota from the API.
Here's how I queried the basic information (using the python ovirtsdk
module):
import ovirtsdk.api
> api = ovirtsdk.api.API(url=url, username=name, password=password, ...)
> datacenter = api.datacenters.get(name="my-data-center")
> team_quota = datacenter.quotas.get(name="my-teams-quota")
Which works well enough, but doesn't really provide any actual *valuable*
information (just the name, id, description, that kind of stuff).
So where is the useful stuff hidden? The stuff of real value? I have not
found any useful resources while scouring the Internet for this answer.
I want to be able to hit this API and ask for detailed information about
the usage of a quota: How much capacity is my team allotted on a given
storage domain? How much capacity are we presently consuming? Likewise with
CPU/Memory allocation type quotas.
Is this possible, or a pipe dream?
Environment:
RHEVM Version: 3.5.6.0-1
Python SDK Version: 3.5.6.0-1
Thanks again folks!
--
Tim Bielawa, Sr. ${::title}
Cell: 919.332.6411 | IRC: tbielawa (#platops)
1BA0 4FAB 4C13 FBA0 A036 4958 AD05 E75E 0333 AE37
8 years, 2 months
Re: [ovirt-users] Mixing CPU types
by Matthew Trent
Though our new oVirt setup is better in most ways, cross-CPU-type migration is one of the features I miss from Proxmox. KVM supports mixed-CPU migration for a while now, even between AMD and Intel.
http://www.linux-kvm.org/page/Migration
I'm using a bunch of re-purposed servers with a mix of AMD and Intel. I separate them into clusters, as noted, but it sure would be nice to be able to live migrate between them. :)
--
Matthew Trent
Network Engineer
Lewis County IT Services
> Hi Rene,
>
> Thank you very much for coming back to me.
>
> That's perfect then and answers my questions exactly.
>
> Much appreciated.
>
> Regards.
>
>Neil Wilson.
>
>
>On Wed, Jan 27, 2016 at 1:57 PM, René Koch <rkoch at rk-it.at> wrote:
>>
>> Hi Neil,
>>
>> You can mix cpu types (but not AMD and Intel) if you leave the cluster
>> level at the lowest cpu level.
>> I personally don't mix cpu levels if possible, but instead create own
>> clusters for each cpu type in order to be able to use the newest cpu
>> features...
>>
>>
>> Regards,
>> René
>>
>>
>> On 01/27/2016 12:53 PM, Neil wrote:
>>
>> Hi guys,
>>
>> I currently have an oVirt 3.5 cluster with Sandy Bridge Xeon CPU's, and I
>> need to add a new host for more RAM and vCPU's, however the new Xeon e5
>> cpu's are Haswell based.
>>
>> Can I mix CPU types (Haswell and Sandy Bridge) in my cluster and will I be
>> able to migrate between my hosts?
>>
>> I'm guessing that for this to work I'll need to leave my "CPU type" set to
>> Sandy Bridge, will the Haswell based CPU be compatible with my cluster, but
>> just run without any Haswell type features?
>>
>> Apologies if this is a dumb question or if it's been answered before.
>>
>> Thank you.
>>
>> Regards.
>>
>> Neil Wilson
>>
8 years, 2 months
Host maintenance - VM migration logic
by Patrick Russell
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8 years, 2 months
How does VDSM-Fake actually work?
by Nicolás
This is a multi-part message in MIME format.
--------------050502090505080806060902
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
Hi,
I'm trying to set up VDSM-Fake
(git://gerrit.ovirt.org/ovirt-vdsmfake.git) for some tests, however, I'm
a bit confused about how does it actually work. As the instructions say,
I was able to build the project with Maven (however, the
org.ovirt.vdsm-jsonrpc-java dependency version had to be changed to
1.1.5 instead of 1.1.2-SNAPSHOT in pom.xml as this latter is no longer
provided at the repository).
Once built, I run mvn jetty:run and the server started correctly:
2016-02-02 11:01:51.957:INFO::jetty-6.1.26
2016-02-02 11:01:52.804:INFO::No Transaction manager found - if your
webapp requires one, please configure one.
2016-02-02 11:01:53,424 Application initialized.
2016-02-02 11:01:53,442 Opening a Stomp server localhost:54322
2016-02-02 11:01:53.702:INFO::Started
SelectChannelConnector@0.0.0.0:54321
[INFO] Started Jetty Server
[INFO] Starting scanner at interval of 10 seconds.
I could indeed verify it's listening on the VDSM port:
[root@host ovirt-vdsmfake]# netstat -atpn | grep 54321
tcp6 0 0 :::54321 :::* LISTEN
44870/java
So the next step is to add a fake host via REST. I used scripts provided
here <http://www.ovirt.org/REST_API_Using_BASH_Automation> and I
successfully added the host, however, it starts installing all the VDSM
packages as it were a normal host and therefore it tries to start vdsmd
as well, which throws an error as the Jetty Server is already listening
on the 54321 port. I shut down the Jetty Server and allowed oVirt
Manager to install all the packages properly, then stopped vdsmd and
started the Jetty Server, but expectedly oVirt Engine fails with message
"Host xxx is non responsive", so what I actually got is a real VDSM host
and not a fake one.
FWIW, the fake VDSM runs on a different host, ports are reacheable from
the oVirt engine, proper /etc/hosts has been added to the engine to
reach the host, and no further customization of web.xml has been done.
I feel like I'm missing something here. Could someone shed some light on
what's wrong?
Thanks.
Nicolás
--------------050502090505080806060902
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 8bit
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
Hi,<br>
<br>
I'm trying to set up VDSM-Fake
(git://gerrit.ovirt.org/ovirt-vdsmfake.git) for some tests, however,
I'm a bit confused about how does it actually work. As the
instructions say, I was able to build the project with Maven
(however, the org.ovirt.vdsm-jsonrpc-java dependency version had to
be changed to 1.1.5 instead of 1.1.2-SNAPSHOT in pom.xml as this
latter is no longer provided at the repository).<br>
<br>
Once built, I run mvn jetty:run and the server started correctly:<br>
<blockquote>2016-02-02 11:01:51.957:<a class="moz-txt-link-freetext" href="INFO::jetty-6.1.26">INFO::jetty-6.1.26</a><br>
2016-02-02 11:01:52.804:<a class="moz-txt-link-freetext" href="INFO::No">INFO::No</a> Transaction manager found - if
your webapp requires one, please configure one.<br>
2016-02-02 11:01:53,424 Application initialized. <br>
2016-02-02 11:01:53,442 Opening a Stomp server localhost:54322 <br>
2016-02-02 11:01:53.702:<a class="moz-txt-link-freetext" href="INFO::Started">INFO::Started</a>
<a class="moz-txt-link-abbreviated" href="mailto:SelectChannelConnector@0.0.0.0:54321">SelectChannelConnector@0.0.0.0:54321</a><br>
[INFO] Started Jetty Server<br>
[INFO] Starting scanner at interval of 10 seconds.<br>
</blockquote>
I could indeed verify it's listening on the VDSM port:<br>
<blockquote>[root@host ovirt-vdsmfake]# netstat -atpn | grep 54321<br>
tcp6 0 0 :::54321
:::* LISTEN 44870/java<br>
</blockquote>
So the next step is to add a fake host via REST. I used scripts
provided <a
href="http://www.ovirt.org/REST_API_Using_BASH_Automation">here</a>
and I successfully added the host, however, it starts installing all
the VDSM packages as it were a normal host and therefore it tries to
start vdsmd as well, which throws an error as the Jetty Server is
already listening on the 54321 port. I shut down the Jetty Server
and allowed oVirt Manager to install all the packages properly, then
stopped vdsmd and started the Jetty Server, but expectedly oVirt
Engine fails with message "Host xxx is non responsive", so what I
actually got is a real VDSM host and not a fake one.<br>
<br>
FWIW, the fake VDSM runs on a different host, ports are reacheable
from the oVirt engine, proper /etc/hosts has been added to the
engine to reach the host, and no further customization of web.xml
has been done.<br>
<br>
I feel like I'm missing something here. Could someone shed some
light on what's wrong?<br>
<br>
Thanks.<br>
<br>
Nicolás<br>
</body>
</html>
--------------050502090505080806060902--
8 years, 2 months
howto change hosted-engine config memory
by Paul Groeneweg | Pazion
I am trying to change memory of my hosted engine.
I am running oVirt 3.6 with CentOS 6 Hosts with hosted engine on nfs3
1. I put hosted-engine to maintenance, shutdown vm
2. update /etc/ovirt-hosted-engine/vm.conf
3. restart vm disable maintenance
Memory is still old value.
How can I change the hosted engine VM?
I did found:
http://www.ovirt.org/Features/Hosted_Engine_configuration_on_shared_storage
When I check /etc/ovirt-hosted-engine/hosted-engine.conf there is no
"conf_volume_UUID" entry.
Do I need to create a shared config volume entry ( conf_volume_UUID ), so I
can edit hosted engine VM? If so, how can this be done?
I did try to rerun engine-setup, but this did not trigger anything.
Kind regards,
Paul Groeneweg
Pazion
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Met vriendelijke groeten,
Paul Groeneweg
Pazion
Webdevelopment - Hosting - Apps
T +31 26 3020038
M +31 614 277 577
E paul(a)pazion.nl
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confidential and/or protected by intellectual property rights and are
intended for the sole use of the recipient(s) named above. Any use of the
information contained herein (including, but not limited to, total or
partial reproduction, communication or distribution in any form) by persons
other than the designated recipient(s) is prohibited. If you have received
this e-mail in error, please notify the sender either by telephone or by
e-mail and delete the material from any computer. Thank you for your
cooperation."
8 years, 2 months
