Empty cgroup files on centos 7.3 host
by Florian Schmid
Hi,
I wanted to monitor disk IO and R/W on all of our oVirt centos 7.3 hypervisor hosts, but it looks like that all those files are empty.
For example:
ls -al /sys/fs/cgroup/blkio/machine.slice/machine-qemu\\x2d14\\x2dHostedEngine.scope/
insgesamt 0
drwxr-xr-x. 2 root root 0 30. Mai 10:09 .
drwxr-xr-x. 16 root root 0 26. Jun 09:25 ..
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_merged
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_merged_recursive
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_queued
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_queued_recursive
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_bytes
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_bytes_recursive
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_serviced
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_serviced_recursive
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_time
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_time_recursive
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_wait_time
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_wait_time_recursive
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.leaf_weight
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.leaf_weight_device
--w-------. 1 root root 0 30. Mai 10:09 blkio.reset_stats
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.sectors
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.sectors_recursive
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.io_service_bytes
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.io_serviced
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_bps_device
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_iops_device
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_bps_device
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_iops_device
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.time
-r--r--r--. 1 root root 0 30. Mai 10:09 blkio.time_recursive
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.weight
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.weight_device
-rw-r--r--. 1 root root 0 30. Mai 10:09 cgroup.clone_children
--w--w--w-. 1 root root 0 30. Mai 10:09 cgroup.event_control
-rw-r--r--. 1 root root 0 30. Mai 10:09 cgroup.procs
-rw-r--r--. 1 root root 0 30. Mai 10:09 notify_on_release
-rw-r--r--. 1 root root 0 30. Mai 10:09 tasks
I thought, I can get my needed values from there, but all files are empty.
Looking at this post: http://lists.ovirt.org/pipermail/users/2017-January/079011.html
this should work.
Is this normal on centos 7.3 with oVirt installed? How can I get those values, without monitoring all VMs directly?
oVirt Version we use:
4.1.1.8-1.el7.centos
BR Florian
7 years
Reg: Ovirt mouse not responding
by syedquadeer＠ctel.in
Dear Team,
I am using Ovirt 3.x on centos 3 node cluster and in that Ubuntu 14.04
64bit vm's are installed. But the end users, who are using this vm' s
are facing some issue daily and issues are mentioned below,
1. Keyboard will not respond in middle automatically and after checking
log file in vm, it show pmouse sync issue.
2. If Vm is restarted it is giving black screen, then Vm need to power
off and start again.
Please provide solution for above issues. Thanks in advance...
--
Thanks & Regards,
Syed Abdul Qadeer.
7660022818.
7 years
using oVirt with newer librbd1
by Matthias Leopold
Hi,
we want to use a Ceph cluster as the main storage for our oVirt 4.1.x
datacenter. We successfully tested using librbd1-12.2.1-0.el7 package
from Ceph repos instead of the standard librbd1-0.94.5-2.el7 from CentOS
7 in an oVirt virtualization node. Are there any caveats when doing so?
Will this work in oVirt 4.2?
thx
matthias
7 years, 1 month
Re: [ovirt-users] iSCSI domain on 4kn drives
by Martijn Grendelman
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Op 7-8-2016 om 8:19 schreef Yaniv Kaul:
>
> On Fri, Aug 5, 2016 at 4:42 PM, Martijn Grendelman
> <martijn.grendelman(a)isaac.nl <mailto:martijn.grendelman@isaac.nl>> wrote:
>
> Op 4-8-2016 om 18:36 schreef Yaniv Kaul:
>> On Thu, Aug 4, 2016 at 11:49 AM, Martijn Grendelman
>> <martijn.grendelman(a)isaac.nl
>> <mailto:martijn.grendelman@isaac.nl>> wrote:
>>
>> Hi,
>>
>> Does oVirt support iSCSI storage domains on target LUNs using
>> a block
>> size of 4k?
>>
>>
>> No, we do not - not if it exposes 4K blocks.
>> Y.
>
> Is this on the roadmap?
>
>
> Not in the short term roadmap.
> Of course, patches are welcome. It's mainly in VDSM.
> I wonder if it'll work in NFS.
> Y.
I don't think I ever replied to this, but I can confirm that in RHEV 3.6
it works with NFS.
Best regards,
Martijn.
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Op 7-8-2016 om 8:19 schreef Yaniv Kaul:<br>
<blockquote
cite="mid:280cfbd3a16ad1b76cc7de56bda88f45,CAJgorsbJHLV1e3fH4b4AR3GBp1oi44fDhfeii+PQ1iY1RwUStw@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra">On Fri, Aug 5, 2016 at 4:42 PM, Martijn
Grendelman <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:martijn.grendelman@isaac.nl" target="_blank">martijn.grendelman(a)isaac.nl</a>></span>
wrote:<br>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Op 4-8-2016 om
18:36 schreef Yaniv Kaul:<br>
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote"><span class="">On Thu,
Aug 4, 2016 at 11:49 AM, Martijn Grendelman <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:martijn.grendelman@isaac.nl"
target="_blank">martijn.grendelman(a)isaac.nl</a>></span>
wrote:<br>
</span><span class="">
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">Hi,<br>
<br>
Does oVirt support iSCSI storage domains on
target LUNs using a block<br>
size of 4k?<br>
</blockquote>
<div><br>
</div>
</span><span class="">
<div>No, we do not - not if it exposes 4K
blocks.</div>
<div>Y.</div>
</span></div>
</div>
</div>
</blockquote>
<br>
Is this on the roadmap?<br>
</div>
</blockquote>
<div><br>
</div>
<div>Not in the short term roadmap.</div>
<div>Of course, patches are welcome. It's mainly in VDSM.</div>
<div>I wonder if it'll work in NFS.</div>
<div>Y.</div>
</div>
</div>
</div>
</blockquote>
<br>
I don't think I ever replied to this, but I can confirm that in RHEV
3.6 it works with NFS.<br>
<br>
Best regards,<br>
Martijn.<br>
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7 years, 1 month
Ovirt 4.0 and EL 7.4
by Alan Griffiths
Hi,
Is 4.0 supported/known to work on CentOS 7.4?
I've just tried to upgrade one of the hosts in my lab from 7.3 to 7.4
and now vdsm-network fails to start with
vdsm-tool: libvirt: XML-RPC error : authentication failed: authentication failed
To even get this far I had to exclude gluster packages as 7.4
introduces 3.8 but ovirt 4.0 repo is still on 3.7.
So, more generally. If I'm on ovirt 4.0, gluster 3.7 and EL 7.3. What
is the best ordering for getting to ovirt 4.1 and EL 7.4?
Thanks,
Alan
7 years, 1 month
[ANN] oVirt 4.2.0 First Beta Release is now available for testing
by Sandro Bonazzola
The oVirt Project is pleased to announce the availability of the First Beta
Release of oVirt 4.2.0, as of October 31st, 2017
This is pre-release software. This pre-release should not to be used in
production.
Please take a look at our community page[1] to learn how to ask questions
and interact with developers and users.
All issues or bugs should be reported via oVirt Bugzilla[2].
This update is the first beta release of the 4.2.0 version. This release
brings more than 230 enhancements and more than one thousand bug fixes,
including more than 380 high or urgent severity fixes, on top of oVirt 4.1
series.
What's new in oVirt 4.2.0?
-
The Administration Portal has been completely redesigned using
Patternfly, a widely adopted standard in web application design. It now
features a cleaner, more intuitive design, for an improved user experience.
-
There is an all-new VM Portal for non-admin users.
-
A new High Performance virtual machine type has been added to the New VM
dialog box in the Administration Portal.
-
Open Virtual Network (OVN) adds support for Open vSwitch software
defined networking (SDN).
-
oVirt now supports Nvidia vGPU.
-
The ovirt-ansible-roles package helps users with common administration
tasks.
-
Virt-v2v now supports Debian/Ubuntu based VMs.
For more information about these and other features, check out the oVirt
4.2.0 blog post <https://ovirt.org/blog/2017/09/introducing-ovirt-4.2.0/>.
This release is available now on x86_64 architecture for:
* Red Hat Enterprise Linux 7.4 or later
* CentOS Linux (or similar) 7.4 or later
This release supports Hypervisor Hosts on x86_64 and ppc64le architectures
for:
* Red Hat Enterprise Linux 7.4 or later
* CentOS Linux (or similar) 7.4 or later
* oVirt Node 4.2 (available for x86_64 only)
See the release notes draft [3] for installation / upgrade instructions and
a list of new features and bugs fixed.
Notes:
- oVirt Appliance is already available.
- An async release of oVirt Node will follow soon.
Additional Resources:
* Read more about the oVirt 4.2.0 release highlights:
http://www.ovirt.org/release/4.2.0/
* Get more oVirt project updates on Twitter: https://twitter.com/ovirt
* Check out the latest project news on the oVirt blog:
http://www.ovirt.org/blog/
[1] https://www.ovirt.org/community/
[2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt
[3] http://www.ovirt.org/release/4.2.0/
[4] http://resources.ovirt.org/pub/ovirt-4.2-pre/iso/
--
SANDRO BONAZZOLA
ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D
Red Hat EMEA <https://www.redhat.com/>
<https://red.ht/sig>
TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>
<http://www.teraplan.it/redhat-osd-2017/>
7 years, 1 month
ovirtmgmt network
by Arsène Gschwind
This is a multi-part message in MIME format.
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Hi,
I have a question about ovirtmgmt network.
When deploying Hosted-Engine it creates ovirtmgmt bridge on top of main
nic of the host. This means the HE will be connected to the same network
as the main Host connection. Is it possible to separate those subnet,
let say I would have something like
Host:
IP: 10.0.a.b (VLAN a untagged) The host has an IP address on that interface
GW: 10.0.a.gw
Then i would have a tagged VLAN on top of that interface :
IF2 : 10.0.c.x (VLAN c tagged) The host has no IP address on that interface
GW: 10.0.c.gw
Would it be possible to have the HE connected on IF2, if Yes how do we
deploy such a setup?
Thanks for any hint.
Rgds,
Arsène
--
*Arsène Gschwind*
Fa. Sapify AG im Auftrag der Universität Basel
IT Services
Klingelbergstr. 70 | CH-4056 Basel | Switzerland
Tel. +41 79 449 25 63 | http://its.unibas.ch <http://its.unibas.ch/>
ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11
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<p>Hi,</p>
<p>I have a question about ovirtmgmt network.</p>
<p>When deploying Hosted-Engine it creates ovirtmgmt bridge on top
of main nic of the host. This means the HE will be connected to
the same network as the main Host connection. Is it possible to
separate those subnet, let say I would have something like</p>
<p>Host:</p>
<p>IP: 10.0.a.b (VLAN a untagged) The host has an IP address on that
interface<br>
GW: 10.0.a.gw</p>
<p>Then i would have a tagged VLAN on top of that interface :</p>
<p>IF2 : 10.0.c.x (VLAN c tagged) The host has no IP address on that
interface<br>
GW: 10.0.c.gw</p>
<p>Would it be possible to have the HE connected on IF2, if Yes how
do we deploy such a setup?</p>
<p>Thanks for any hint.<br>
Rgds, <br>
Arsène<br>
</p>
<div class="moz-signature">-- <br>
<p class="western" style="margin-bottom: 0in; line-height: 150%">
<font color="#000000"><font face="Tahoma, serif"> <font
style="font-size: 8pt" size="1"> <b>Arsène Gschwind</b> </font>
</font>
<font color="#000000"> <font face="Tahoma, serif"> <font
style="font-size: 8pt" size="1"> </font> </font>
</font>
<font face="Tahoma, serif"> <font style="font-size: 8pt"
size="1"> </font>
</font>
<font face="Tahoma, serif">
</font>
<font color="#000000"> <font face="Tahoma, serif"> <font
style="font-size: 8pt" size="1"> <br>
</font> </font>
</font>
<font color="#7f7f7f"> <font face="Tahoma, serif"> <font
style="font-size: 8pt" size="1"> Fa. Sapify AG im
Auftrag der Universität Basel<br>
IT Services<br>
Klingelbergstr. 70 | CH-4056 Basel | Switzerland<br>
Tel. +41 79 449 25 63 | </font> </font>
</font>
<a href="http://its.unibas.ch/"> <font face="Tahoma, serif">
<font style="font-size: 8pt" size="1">
http://its.unibas.ch </font> </font>
</a><br>
<font color="#7f7f7f"> <font face="Tahoma, serif"> <font
style="font-size: 8pt" size="1"> ITS-ServiceDesk:
<a class="moz-txt-link-abbreviated" href="mailto:support-its@unibas.ch">support-its(a)unibas.ch</a> | +41 61 267 14 11 </font> </font>
</font>
</font></p>
<font color="#000000">
</font></div>
</body>
</html>
--------------4ED07EBEEF5FDCFA459DA49E--
7 years, 1 month
oVirt Node 4.1.6 on IBM x3650 M3
by Jon bae
Hello everybody,
I would like to install oVirt Node on a IBM Machine, but after the
installation it can not boot. I get the message:
"/boot/efi/..." file not found
I try many different things like turn of uefi options in bios etc. but with
no effect.
Now I figure out that when I install full CentOS 7.3 from live DVD it just
boot normal.
Is there any workaround to get this to work?
Regards
Jonathan
7 years, 1 month
VM resource allocation and IO Threads
by Gianluca Cecchi
Hello,
can anyone give any pointer to deeper information about what in subject and
the value for "Num Of IO Threads" configuration, best practices and
to-be-expected improvements?
I read also here:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/...
but in some points it seems not so clear to me:
eg:
If a virtual machine has more than one disk, you can enable or change the
number of IO threads to improve performance.
but also
Red Hat recommends using the default number of IO threads, which is 1.
There is also a note about deactivation and activation of disks: does it
mean that even if I poweroff the VM and change its config I have to make
this step after?
Anyone has run benchmarks?
Does it make sense if my VM has 3 disks to configure 6 IO threads for
example?
Do IO threads map to SCSI controllers inside the guest or what?
Thanks in advance,
Gianluca
7 years, 1 month
