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6:01 p.m.
New subject: Simple way to activate live merge in FC20 cluster
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--_000_12EF8D94C6F8734FB2FF37B9FBEDD1735F8C16DCEXCHANGEcollogi_
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Hi Gianluca,
it took me some time to correct my misunderstanding. I advised to update
only libvirt as I was aware of the (old) block-commit command of qemu.
With that you can merge snapshots in the chain (history) but not into the
active layer (the current running state). Merging data into the active
layer needs active-commit that is available since qemu 2.0 . That explains
the error you got.
OVirt makes use of the second scenario so no luck without a full installati=
on
of virt-preview repos or a jump towards FC21.
Markus
________________________________
Von: users-bounces(a)ovirt.org [users-bounces(a)ovirt.org]" im Auftrag von "Mar=
kus Stockhausen [stockhausen(a)collogia.de]
Gesendet: Freitag, 21. November 2014 08:38
An: Gianluca Cecchi
Cc: s k; users(a)ovirt.org
Betreff: Re: [ovirt-users] Simple way to activate live merge in FC20 cluste=
r
Wow. Very quick test. Thanks for sharing the results. I will have a look wh=
at qemu 1.6.2 might need.
Regarding stability of qemu 2.1.2: You should scan the qemu stable mailing =
list if some severe fixes have been posted after the release. If you feel =
comfortable take qemu from the preview repos too.
Just a simple yum update.
Remark: With the advent of FC21 virt-preview for FC20 might see no furthe=
r fixes.
Markus
Am 21.11.2014 01:46 schrieb Gianluca Cecchi <gianluca.cecchi(a)gmail.com>:
On Fri, Nov 21, 2014 at 1:38 AM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com=
<mailto:gianluca.cecchi@gmail.com>> wrote:
[root@tekkaman qemu]# rpm -q qemu
qemu-1.6.2-10.fc20.x86_64
[snip]
libvirtError: unsupported configuration: active commit not supported with t=
his QEMU binary
OK, I reply to myself
The error above is explanatory...
I didn't notice that only the libvirt part is included in the ovirt-3.5-fed=
ora-virt-preview repo:
"
[ovirt-3.5-fedora-virt-preview]
name=3DVirtualization packages from Rawhide built for latest Fedora
baseurl=3Dhttp://fedorapeople.org/groups/virt/virt-preview/fedora-$releasev=
er/$basearch
enabled=3D1
skip_if_unavailable=3D1
gpgcheck=3D0
includepkgs=3Dlibvirt*
"
SO I think I need qemu-2.1.2-6.fc20.x86_64.rpm and probably other packages =
as provided by virt-preview.
What could be the safest way to include further qemu packages?
How stable is qemu 2.1.2 at this time?
Thanks,
Gianluca
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Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<html dir=3D"ltr">
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html;
charset=3Diso-8859-=
1">
<style type=3D"text/css" id=3D"owaParaStyle"></style>
</head>
<body fpstyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">Hi Gianluca,
<div><br>
</div>
<div>it took me some time to correct my misunderstanding. I advised to upda=
te</div>
<div>only libvirt as I was aware of the (old) block-commit command of qemu.=
</div>
<div>With that you can merge snapshots in the chain (history) but not into =
the </div>
<div>active <span style=3D"font-size: 10pt;">layer (the
current <=
/span><span style=3D"font-size: 10pt;">running state). Merging data
into th=
e active</span></div>
<div><span style=3D"font-size: 10pt;">layer needs active-commit that
is ava=
ilable since qemu 2.0 . That explains </span></div>
<div><span style=3D"font-size:
10pt;">the </span><span style=3D"font-s=
ize: 10pt;">error you got.</span></div>
<div><span style=3D"font-size: 10pt;"><br>
</span></div>
<div><span style=3D"font-size: 10pt;">OVirt makes use of the second
scenari=
o so no luck without a full installation</span></div>
<div><span style=3D"font-size: 10pt;">of virt-preview repos or a
jump towar=
ds FC21.</span></div>
<div>
<div><br>
</div>
<div>Markus</div>
<div><br>
<div style=3D"font-family: Times New Roman; color: #000000; font-size: 16px=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF426740" style=3D"direction: ltr;"><font
face=3D"Tahoma" si=
ze=3D"2" color=3D"#000000"><b>Von:</b>
users-bounces(a)ovirt.org [users-bounc=
es(a)ovirt.org]&quot; im Auftrag von "Markus Stockhausen [stockhausen@co=
llogia.de]<br>
<b>Gesendet:</b> Freitag, 21. November 2014 08:38<br>
<b>An:</b> Gianluca Cecchi<br>
<b>Cc:</b> s k; users(a)ovirt.org<br>
<b>Betreff:</b> Re: [ovirt-users] Simple way to activate live merge in FC20=
cluster<br>
</font><br>
</div>
<div></div>
<div>
<p dir=3D"ltr">Wow. Very quick test. Thanks for sharing the results. I
will=
have a look what qemu 1.6.2 might need.</p>
<p dir=3D"ltr">Regarding stability of qemu 2.1.2: You should scan the qemu
=
stable mailing list if some severe fixes have been posted after the r=
elease. If you feel comfortable take qemu from the preview repos too.=
</p>
<p dir=3D"ltr">Just a simple yum update.</p>
<p dir=3D"ltr">Remark: With the advent of FC21 virt-preview for
FC20 =
might see no further fixes.</p>
<p dir=3D"ltr">Markus</p>
<div class=3D"gmail_quote">Am 21.11.2014 01:46 schrieb Gianluca Cecchi
<=
gianluca.cecchi@gmail.com>:<br type=3D"attribution">
<blockquote class=3D"quote" style=3D"margin:0 0 0 .8ex; border-left:1px
#cc=
c solid; padding-left:1ex">
<div>
<div dir=3D"ltr">
<div>
<div class=3D"elided-text">On Fri, Nov 21, 2014 at 1:38 AM, Gianluca
Cecchi=
<span dir=3D"ltr">
<<a href=3D"mailto:gianluca.cecchi@gmail.com"
target=3D"_blank">gianluca=
.cecchi(a)gmail.com</a>&gt;</span> wrote:<br>
<blockquote style=3D"margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(20=
4 ,204 ,204); padding-left:1ex">
<div dir=3D"ltr"><br>
<div><br>
[root@tekkaman qemu]# rpm -q qemu<br>
qemu-1.6.2-10.fc20.x86_64<br>
<br>
</div>
</div>
</blockquote>
<div>[snip] <br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(20=
4 ,204 ,204); padding-left:1ex">
<div dir=3D"ltr">
<div></div>
<br>
<div>libvirtError: unsupported configuration: active commit not supported w=
ith this QEMU binary<br>
<br>
</div>
</div>
</blockquote>
</div>
<br>
<br>
</div>
<div>OK, I reply to myself<br>
</div>
<div>The error above is explanatory...<br>
</div>
<div>I didn't notice that only the libvirt part is included in the ovirt-3.=
5-fedora-virt-preview repo:<br>
</div>
<div><br>
"<br>
[ovirt-3.5-fedora-virt-preview]<br>
name=3DVirtualization packages from Rawhide built for latest Fedora<br>
baseurl=3D<a href=3D"http://fedorapeople.org/groups/virt/virt-preview/fedor=
a-$releasever/$basearch"
target=3D"_blank">http://fedorapeople.org/groups/v=
irt/virt-preview/fedora-$releasever/$basearch</a><br>
enabled=3D1<br>
skip_if_unavailable=3D1<br>
gpgcheck=3D0<br>
includepkgs=3Dlibvirt*<br>
"<br>
<br>
</div>
<div>SO I think I need qemu-2.1.2-6.fc20.x86_64.rpm and probably other pack=
ages as provided by virt-preview.<br>
</div>
<div>What could be the safest way to include further qemu packages?<br>
</div>
<div>How stable is qemu 2.1.2 at this time?<br>
<br>
</div>
<div>Thanks,<br>
Gianluca<br>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</div>
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2:13 p.m.
New subject: Simple way to activate live merge in FC20 cluster
On Fri, Nov 21, 2014 at 4:01 PM, Markus Stockhausen <stockhausen(a)collogia.de
wrote:
Hi Gianluca,
it took me some time to correct my misunderstanding. I advised to update
only libvirt as I was aware of the (old) block-commit command of qemu.
With that you can merge snapshots in the chain (history) but not into the
active layer (the current running state). Merging data into the active
layer needs active-commit that is available since qemu 2.0 . That explains
the error you got.
OVirt makes use of the second scenario so no luck without a full
installation
of virt-preview repos or a jump towards FC21.
Markus
it seems not so...
In my F20 oVirt 3.5 All-In-One with libvirt-1.2.9.1-1.fc20.x86_64 and
qemu-1.6.2-10.fc20.x86_64 I have:
Situation on a C7 VM
Date Status Description
Current OK Active VM
2014-Nov-23, 12:01 OK one_after_first
2014-Nov-21, 00:54 OK test per live merge
- Trying to delete "one_after_first"
Thread-13::DEBUG::2014-11-23
12:04:15,782::libvirtconnection::143::root::(wrapper) Unknown libvirterror:
ecode: 67 edom: 10 l
evel: 2 message: unsupported configuration: active commit not supported
with this QEMU binary
Thread-13::ERROR::2014-11-23 12:04:15,783::vm::5751::vm.Vm::(merge)
vmId=`0ba6a56b-542c-480e-8bab-88aea9195302`::Live merge f
ailed (job: 10c6aed1-3f03-439a-b037-e1b6c55ecada)
Traceback (most recent call last):
File "/usr/share/vdsm/virt/vm.py", line 5747, in merge
flags)
File "/usr/share/vdsm/virt/vm.py", line 670, in f
ret = attr(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line
111, in wrapper
ret = f(*args, **kwargs)
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 638, in
blockCommit
if ret == -1: raise libvirtError ('virDomainBlockCommit() failed',
dom=self)
libvirtError: unsupported configuration: active commit not supported with
this QEMU binary
- Trying to delete "test per live merge"
Thread-13::DEBUG::2014-11-23
12:10:35,901::libvirtconnection::143::root::(wrapper) Unknown libvirterror:
ecode: 67 edom: 10 l
evel: 2 message: unsupported configuration: this qemu doesn't support
relative blockpull
Thread-13::ERROR::2014-11-23 12:10:35,902::vm::5751::vm.Vm::(merge)
vmId=`0ba6a56b-542c-480e-8bab-88aea9195302`::Live merge f
ailed (job: e0433ad1-cb2c-4b09-b2fc-9c9d4e513957)
Traceback (most recent call last):
File "/usr/share/vdsm/virt/vm.py", line 5747, in merge
flags)
File "/usr/share/vdsm/virt/vm.py", line 670, in f
ret = attr(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line
111, in wrapper
ret = f(*args, **kwargs)
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 638, in
blockCommit
if ret == -1: raise libvirtError ('virDomainBlockCommit() failed',
dom=self)
libvirtError: unsupported configuration: this qemu doesn't support relative
blockpull
7:10 p.m.
New subject: Simple way to activate live merge in FC20 cluster
On Sun, Nov 23, 2014 at 12:13 PM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com
wrote:
it seems not so...
In my F20 oVirt 3.5 All-In-One with libvirt-1.2.9.1-1.fc20.x86_64 and
qemu-1.6.2-10.fc20.x86_64 I have:
Situation on a C7 VM
Date Status Description
Current OK Active VM
2014-Nov-23, 12:01 OK one_after_first
2014-Nov-21, 00:54 OK test per live merge
- Trying to delete "one_after_first"
[snip]
libvirtError: unsupported configuration: active commit not supported
with
this QEMU binary
- Trying to delete "test per live merge"
[snip]
libvirtError: unsupported configuration: this qemu doesn't
support
relative blockpull
As F21 is at TC3 level and final releae expected for 09/12 I decided to
enable the whole virt-preview repo in my f20 all-in-one system.
After commenting out the line inside
/etc/yum.repos.d/ovirt-3.5-dependencies.repo so that it becomes
#includepkgs=libvirt*
Packages installed were
Dependency Installed:
SDL2.x86_64 0:2.0.3-1.fc20
qemu-system-aarch64.x86_64 2:2.1.2-6.fc20
Updated:
SLOF.noarch 0:0.1.git20140630-1.fc20
ipxe-roms-qemu.noarch 0:20140303-3.gitff1e7fc7.fc20
kmod-nvidia-304xx-3.17.3-200.fc20.x86_64.x86_64 0:304.123-1.fc20.19
libcacard.x86_64 2:2.1.2-6.fc20
libosinfo.x86_64 0:0.2.11-2.fc20
openbios.noarch 0:1.1.svn1306-1.fc20
qemu.x86_64 2:2.1.2-6.fc20
qemu-common.x86_64 2:2.1.2-6.fc20
qemu-img.x86_64 2:2.1.2-6.fc20
qemu-kvm.x86_64 2:2.1.2-6.fc20
qemu-system-alpha.x86_64 2:2.1.2-6.fc20
qemu-system-arm.x86_64 2:2.1.2-6.fc20
qemu-system-cris.x86_64 2:2.1.2-6.fc20
qemu-system-lm32.x86_64 2:2.1.2-6.fc20
qemu-system-m68k.x86_64 2:2.1.2-6.fc20
qemu-system-microblaze.x86_64 2:2.1.2-6.fc20
qemu-system-mips.x86_64 2:2.1.2-6.fc20
qemu-system-moxie.x86_64 2:2.1.2-6.fc20
qemu-system-or32.x86_64 2:2.1.2-6.fc20
qemu-system-ppc.x86_64 2:2.1.2-6.fc20
qemu-system-s390x.x86_64 2:2.1.2-6.fc20
qemu-system-sh4.x86_64 2:2.1.2-6.fc20
qemu-system-sparc.x86_64 2:2.1.2-6.fc20
qemu-system-unicore32.x86_64 2:2.1.2-6.fc20
qemu-system-x86.x86_64 2:2.1.2-6.fc20
qemu-system-xtensa.x86_64 2:2.1.2-6.fc20
qemu-user.x86_64 2:2.1.2-6.fc20
seabios-bin.noarch 0:1.7.5-3.fc20
seavgabios-bin.noarch 0:1.7.5-3.fc20
sgabios-bin.noarch 1:0.20110622svn-7.fc20
virt-install.noarch 0:1.1.0-4.git310f6527.fc20
virt-manager-common.noarch 0:1.1.0-4.git310f6527.fc20
Complete!
After reboot I was able to successfully merge both the two previous
reported snapshots:
2014-Nov-23, 16:23 Snapshot 'one_after_first' deletion for VM 'c7' was
initiated by admin.
2014-Nov-23, 16:24 Snapshot 'one_after_first' deletion for VM 'c7' has
been
completed.
2014-Nov-23, 16:25 Snapshot 'test per live merge' deletion for VM 'c7'
was
initiated by admin.
2014-Nov-23, 16:27 Snapshot 'test per live merge' deletion for VM 'c7'
has
been completed.
Gianluca
3652
days inactive
3654
days old
3 comments
2 participants
participants (2)
-
Gianluca Cecchi -
Markus Stockhausen