Re: [ovirt-users] Q: ext4 noatime/nidiratime for oVirt node mount points
by Yaniv Kaul
On Jan 4, 2018 7:01 PM, "Donny Davis" <donny(a)fortnebula.com> wrote:
Yaniv,
If there was a central logging server, would the hypervisors send them
there and stop writing to disk (given its setup properly), or does it write
them anyway?
We ship logs to the central logging, not instead of logging them locally.
I reckon you could mount /var/log somewhere remotely, but I do not think it
makes sense.
Our logging is not intensive and has log rotation configured, so I'm not
sure what the issue is. A r/o partition or a cheap SD card with limited
write wear?
Y.
https://www.ovirt.org/documentation/admin-guide/chap-Log_Files/
On Thu, Jan 4, 2018 at 11:43 AM, Yaniv Kaul <ykaul(a)redhat.com> wrote:
>
>
> On Thu, Jan 4, 2018 at 5:04 PM, Donny Davis <donny(a)fortnebula.com> wrote:
>
>> That makes more sense. Have you measured the write load on the disks from
>> just the hypervisor processes. I have included a screen shot from mine, and
>> the load is very low.... in the Kilobytes/sec
>>
>
> And those are probably the logs, which will be written anyway...
> Y.
>
>
>>
>> I am not sure of the implications of changing these parameters, and I do
>> not see an perceivable benefits from doing so.
>>
>> [image: Inline image 1]
>>
>> On Thu, Jan 4, 2018 at 9:51 AM, andreil1 <andreil1(a)starlett.lv> wrote:
>>
>>>
>>>
>>> On 4 Jan 2018, at 14:52, Donny Davis <donny(a)fortnebula.com> wrote:
>>>
>>> What is the purpose in putting these directives in for the hypervisor?
>>>
>>>
>>> I have small node where system and data domains located on the same RAID.
>>> Data domains are on separate partitions.
>>> These options allow minimise disk access activity.
>>>
>>>
>>> On Thu, Jan 4, 2018 at 6:46 AM, andreil1 <andreil1(a)starlett.lv> wrote:
>>>
>>>> Hi !
>>>>
>>>> Is it safe to turn on these options (noatime, nodiratime) in oVirt node
>>>> fstab for these mount points?
>>>> /home
>>>> /
>>>> /tmp
>>>> /var
>>>> /var/log
>>>> /var/log/audit
>>>>
>>>> Node 4.2 installed on CentOS, not with node DVD.
>>>>
>>>> Thanks.
>>>>
>>>> _______________________________________________
>>>> 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
>>>
>>>
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
6 years, 3 months
[CVE-2017-5715] qemu-kvm-ev-2.9.0-16.el7_4.13.1 is now available for testing
by Sandro Bonazzola
Hi, qemu-kvm-ev-2.9.0-16.el7_4.13.1
<https://cbs.centos.org/koji/buildinfo?buildID=21119> is now available for
testing.
I'm testing it right now in oVirt CI, if nothing shows up, I'll tag it for
release in a few hours.
Here's the changelog:
* Thu Jan 04 2018 Sandro Bonazzola <sbonazzo(a)redhat.com> -
ev-2.9.0-16.el7_4.13.1 - Removing RH branding from package name * Thu Dec
14 2017 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.9.0-16.el7_4.13 -
Fix CVE-2017-5715 * Thu Nov 16 2017 Miroslav Rezanina <mrezanin(a)redhat.com>
- rhev-2.9.0-16.el7_4.12 -
kvm-util-async-use-atomic_mb_set-in-qemu_bh_cancel.patch [bz#1513362] -
Resolves: bz#1513362 (QEMU's AIO subsystem gets stuck inhibiting all I/O
operations on virtio-blk-pci devices [rhel-7.4.z])
--
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>
6 years, 3 months
Q: ext4 noatime/nidiratime for oVirt node mount points
by andreil1
Hi !
Is it safe to turn on these options (noatime, nodiratime) in oVirt node fstab for these mount points?
/home
/
/tmp
/var
/var/log
/var/log/audit
Node 4.2 installed on CentOS, not with node DVD.
Thanks.
6 years, 3 months
Q: ext4 noatime/nidiratime for oVirt node mount points
by Service
Hi !
Is it safe to turn on these options (noatime, nodiratime) in oVirt node fstab for these mount points?
/home
/
/tmp
/var
/var/log
/var/log/audit
Node 4.2 installed on CentOS, not with node DVD.
Thanks.
6 years, 3 months
need to close spice remote-viewer after some time with proxy
by Gianluca Cecchi
Hello,
in 4.1 I had the problem that connecting to remote-console and leaving
there inactive, after some time I cannot use it any more (mouse clicks no
effect).
I also reported here:
http://lists.ovirt.org/pipermail/users/2016-October/076890.html
This happened only if connected to the vm from admin portal, while from
user portal it was ok.
Now after update to 4.2 both the admin portal and the new vm portal have
the same problem, so that if I leave the VM for some minutes I come back
and have to close and open again the spice console
The Vm in question is a Fedora 26, but it was something like Fedora 24 I
presume in Dec 2016
I tried to disable at all the screen savers features on it but it doesn't
depend on it.
Possibly depending on proxy set? I would try to disable it and verify if
problems solves. Any one else using websocket proxy has these problems?
Thanks in advance,
Gianluca
6 years, 3 months
ovirt 4.2 and multiple networks
by Gabriel Stein
Hi all,
I'm trying now to migrate the Networks from an old Proxmox to oVirt. I'm
doing manually, adding them to oVirt and using VLAN Tag.
But I have a small problem: this VLANs hasn't any gateway/ip address
configuration, they are just a bridge to the VMs.
After I added all networks to oVirt, I tried to configure these networks on
a host, network interfaces, setup networks, and attach them to an
interface....
After I attached one network and choose OK, I receive this error on oVirt:
Error while executing action:
hostabc.domain.tld:
- must match
"^\b((25[0-5]|2[0-4]\d|[01]\d\d|\d?\d)\_){3}(25[0-5]|2[0-4]\d|[01]\d\d|\d?\d)"
- Attribute: ipConfiguration.iPv4Addresses[0].gateway
Gabriel Stein
------------------------------
Gabriel Ferraz Stein
Tel.: +49 (0) 170 2881531
6 years, 3 months
oVirt-Gluster Hyperconvergence: Graceful shutdown and startup
by Bernhard Seidl
This is a cryptographically signed message in MIME format.
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Content-Language: en-US
Content-Transfer-Encoding: quoted-printable
Hi all and a happy new year,
I am just testing oVirt 4.2 using a three node gluster hyperconvergence
and self hosted engine setup. How should this setup be shutdown and
started again? Here is what tried an experienced:
Shutdown:
1. Shutdown all VMs
2. Enable global ha maintenance
3. Wait for all VM
4. Shutdown hosted-engine using "hosted-engine --vm-shutdown"
5. Wait for stopped hosted engine
6. Shutdown all nodes
Startup:
1. Switch on all nodes
2. Start glusterd on all nodes since it does not start by default (is
this a bug?) using "systemctl start glusterd*"*
3. Check volume status using "gluster peer status" and "gluster volume
status all" on one of the nodes
4. Wait for ovrt-ha-agent until "hosted-engine --vm-status" does not
fail anymore printing "The hosted engine configuration has not been
retrieved from shared storage. Please ensure that ovirt-ha-agent is
running and the storage server is reachable."
4. Start hosted engine "hosted-engine --vm-start" on one of the nodes
5. Check status using "hosted-engine --vm-status" and wait until health
reports good
6. Wait until a host got the SPM role
7. Start VMs
Is this the best/correct way?
Kind regards,
Bernhard
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6 years, 3 months
About vGPU in oVirt
by lofyer
It seems to be that no M10/M60 vGPU host driver for RHEL7 available on
NVIDIA site.
Where should I get the driver or just wait for NVIDIA to release?
6 years, 3 months
Hosted Engine fails if there's a VLAN on the bonded network
by Vinícius Ferrão
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6 years, 3 months
