4:33 a.m.
Hi,
What is the best way to upgrade a datacenter from ovirt 3.6 to 4.0 ?
Upgrade engine, hosts then cluster ?
If right, how do you upgrade a host running ovirt 3.6.7 ? Simple upgrade
or fresh install ?
During the update process of a cluster, some hosts will be in 3.6.7 and
others in 4.0.2, is it a problem for migrating VMs ?
Found docs about engine upgrade but not a lot about host and cluster.
Thanks,
Arnaud
7:28 a.m.
The following process worked for me:
1. ensure all hosts are running el7 or above, and all clusters had been
upgraded to 3.6 level
2. upgrade vdsm to 4.x on all hosts (assuming you are not using ovirt-node)
by switching to maintainance upgrading and activating one by one to avoid
VM downtime.
3. Upgrade engine by following one of the documented procedures (we just
inatalled a new machine for it and switched DNS after backup/restore).
4. Once satisfied that illing back to 3.6 engine will not be needed -
upgrade cluster level.
בתאריך 23 באוג׳ 2016 12:43, "Arnaud Lauriou" <arnaud.lauriou(a)irisa.fr>
כתב:
Hi,
What is the best way to upgrade a datacenter from ovirt 3.6 to 4.0 ?
Upgrade engine, hosts then cluster ?
If right, how do you upgrade a host running ovirt 3.6.7 ? Simple upgrade
or fresh install ?
During the update process of a cluster, some hosts will be in 3.6.7 and
others in 4.0.2, is it a problem for migrating VMs ?
Found docs about engine upgrade but not a lot about host and cluster.
Thanks,
Arnaud
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11:09 a.m.
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--_000_94A9610130A547C9AE67B405B77BC089unilu_--
4:09 a.m.
On 23 August 2016 at 19:09, Christophe TREFOIS <christophe.trefois(a)uni.lu>
wrote:
Small add.
Shouldnt one update the engine first ?
Nope.
You should always update the hosts first. The other way around can work but
AFAIK this is what is being tested.
--
*Barak Korren*
bkorren(a)redhat.com
RHEV-CI Team
4:32 a.m.
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--_000_74A333F0FFDB485CBF8FCE4E2ACD61B1unilu_--
5:34 a.m.
On 24 August 2016 at 12:32, Christophe TREFOIS <christophe.trefois(a)uni.lu>
wrote:
Really? That’s strange, as the engine should be backward compatible
with
previous versions no?
Think about it like this - When an update comes out it gets pushed to the
repos/channels. If you then go and provision a new host with some automated
system like Foreman, you end up with the new VDSM. Also, since you can have
a large amount of hosts, you may reasonably choose to use some automated
system to keep them up to date. It is more reasonable to expect the engine
machine to have a steadier/slower life cycle.
--
*Barak Korren*
bkorren(a)redhat.com
RHEV-CI Team
9:50 a.m.
Doesn't it make more sense for this major upgrade to be a simple new
install of engine v4, and importing the existing SDs?
On Wed, Aug 24, 2016 at 6:34 AM, Barak Korren <bkorren(a)redhat.com> wrote:
On 24 August 2016 at 12:32, Christophe TREFOIS <christophe.trefois(a)uni.lu>
wrote:
> Really? That’s strange, as the engine should be backward compatible with
> previous versions no?
>
>
Think about it like this - When an update comes out it gets pushed to the
repos/channels. If you then go and provision a new host with some automated
system like Foreman, you end up with the new VDSM. Also, since you can have
a large amount of hosts, you may reasonably choose to use some automated
system to keep them up to date. It is more reasonable to expect the engine
machine to have a steadier/slower life cycle.
--
*Barak Korren*
bkorren(a)redhat.com
RHEV-CI Team
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
2:30 p.m.
--Apple-Mail=_F6D6D1D2-BA36-4709-84B2-A7B69B3B80BB
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=us-ascii
On 24 Aug 2016, at 05:09, Barak Korren <bkorren(a)redhat.com>
wrote:
=20
=20
=20
On 23 August 2016 at 19:09, Christophe TREFOIS =
<christophe.trefois(a)uni.lu
<mailto:christophe.trefois@uni.lu>> wrote:
Small add.=20
=20
Shouldnt one update the engine first ?
=20
Nope.=20
You should always update the hosts first. The other way around can =
work but AFAIK
this is what is being tested.
not really.
we do not define the order, and AFAIR last time we tried to check it was =
about 50/50;-)
It is fully compatible both ways
=20
=20
--=20
Barak Korren
bkorren(a)redhat.com <mailto:bkorren@redhat.com>
RHEV-CI Team
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_F6D6D1D2-BA36-4709-84B2-A7B69B3B80BB
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=us-ascii
<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 24 Aug 2016, at 05:09, Barak Korren <<a =
href=3D"mailto:bkorren@redhat.com"
class=3D"">bkorren(a)redhat.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div
class=3D""><div =
dir=3D"ltr" class=3D""><br class=3D""><div
class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote">On 23 August 2016 at
19:09, =
Christophe TREFOIS <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:christophe.trefois@uni.lu" target=3D"_blank" =
class=3D"">christophe.trefois(a)uni.lu</a>&gt;</span>
wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0 =
.8ex;border-left:1px #ccc solid;border-right:1px #ccc =
solid;padding-left:1ex;padding-right:1ex">
<div style=3D"word-wrap:break-word" class=3D"">
Small add.
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Shouldnt one update the engine first ?<br
class=3D"">
<div class=3D"">
<div style=3D"letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
word-wrap: break-word;" class=3D"">
<div style=3D"letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
word-wrap: break-word;" class=3D"">
<div style=3D"letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
word-wrap: break-word;" =
class=3D""></div></div></div></div></div></div></blockquote><div
=
class=3D""><br class=3D""></div><div
class=3D"">Nope. <br =
class=3D""></div><div class=3D"">You should always
update the hosts =
first. The other way around can work but AFAIK this is what is being =
tested.<br
class=3D""></div></div></div></div></div></blockquote><div><br
=
class=3D""></div>not really.</div><div>we do not define the
order, and =
AFAIR last time we tried to check it was about 50/50;-)</div><div>It is =
fully compatible both ways</div><div><br
class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D""><div
dir=3D"ltr" class=3D""><div =
class=3D"gmail_extra"><br clear=3D"all"
class=3D""><br class=3D"">-- <br =
class=3D""><div class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"
class=3D""><div =
class=3D""><b class=3D"">Barak Korren</b><br
class=3D""></div><div =
class=3D""><a href=3D"mailto:bkorren@redhat.com"
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Upgrade done. In my case, the engine was already updated to the latest
4.x release before the hosts.
Following marks 1 and 2 works fine.
After upgrading the cluster compatibility version, got message to reboot
all the VMs.
Don't know if I really have to do that.
On 08/23/2016 02:28 PM, Barak Korren wrote:
The following process worked for me:
1. ensure all hosts are running el7 or above, and all clusters had
been upgraded to 3.6 level
2. upgrade vdsm to 4.x on all hosts (assuming you are not using
ovirt-node) by switching to maintainance upgrading and activating one
by one to avoid VM downtime.
3. Upgrade engine by following one of the documented procedures (we
just inatalled a new machine for it and switched DNS after
backup/restore).
4. Once satisfied that illing back to 3.6 engine will not be needed -
upgrade cluster level.
בתאריך 23 באוג׳ 2016 12:43, "Arnaud Lauriou" <arnaud.lauriou(a)irisa.fr
<mailto:arnaud.lauriou@irisa.fr>> כתב:
Hi,
What is the best way to upgrade a datacenter from ovirt 3.6 to 4.0 ?
Upgrade engine, hosts then cluster ?
If right, how do you upgrade a host running ovirt 3.6.7 ? Simple
upgrade or fresh install ?
During the update process of a cluster, some hosts will be in
3.6.7 and others in 4.0.2, is it a problem for migrating VMs ?
Found docs about engine upgrade but not a lot about host and cluster.
Thanks,
Arnaud
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<div class="moz-cite-prefix">Upgrade done. In my case, the engine
was already updated to the latest 4.x release before the hosts.<br>
Following marks 1 and 2 works fine.<br>
After upgrading the cluster compatibility version, got message to
reboot all the VMs.<br>
Don't know if I really have to do that.<br>
<br>
<br>
On 08/23/2016 02:28 PM, Barak Korren wrote:<br>
</div>
<blockquote
cite="mid:CAGJrMmoVZmRdxZGFOcBn=F5jetuEF8dAY7Z+=CGB3jW4iyfjcw@mail.gmail.com"
type="cite">
<p dir="ltr">The following process worked for me:<br>
1. ensure all hosts are running el7 or above, and all clusters
had been upgraded to 3.6 level <br>
2. upgrade vdsm to 4.x on all hosts (assuming you are not using
ovirt-node) by switching to maintainance upgrading and
activating one by one to avoid VM downtime.<br>
3. Upgrade engine by following one of the documented procedures
(we just inatalled a new machine for it and switched DNS after
backup/restore).<br>
4. Once satisfied that illing back to 3.6 engine will not be
needed - upgrade cluster level.</p>
<div class="gmail_extra"><br>
<div class="gmail_quote">בתאריך 23 באוג׳ 2016 12:43,
"Arnaud
Lauriou" <<a moz-do-not-send="true"
href="mailto:arnaud.lauriou@irisa.fr">arnaud.lauriou@irisa.fr</a>>
כתב:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
What is the best way to upgrade a datacenter from ovirt 3.6
to 4.0 ?<br>
Upgrade engine, hosts then cluster ?<br>
If right, how do you upgrade a host running ovirt 3.6.7 ?
Simple upgrade or fresh install ?<br>
During the update process of a cluster, some hosts will be
in 3.6.7 and others in 4.0.2, is it a problem for migrating
VMs ?<br>
<br>
Found docs about engine upgrade but not a lot about host and
cluster.<br>
<br>
Thanks,<br>
<br>
Arnaud<br>
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2817
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2820
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8 comments
5 participants
participants (5)
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Arnaud Lauriou -
Barak Korren -
Christophe TREFOIS -
Dan Yasny -
Michal Skrivanek