Ovirt 4.2 Fencing problems
by Maton, Brett
Hi,
I recently upgraded my testlab to oVirt 4.2-pre and have been having some
issues.
One of which is fencing with Dell Drac 8 remote access cards.
The configuration I'm using works fine on my other (4.1.6) cluster...
Error:
Health check on Host host.example.com indicates that future attempts to
Start this host using Power-Management are expected to fail.
Fence agent setup for the host appears to be working though:
Which logs would be helpful in debugging this issue ?
Regards,
Brett
7 years, 2 months
VM-Clone issue
by Shamam Amir
Dear All,
We are using oVirt release *Version 4.1.5.2. *I was trying to make a clone
of a VM but I got the following message* "*Error while executing action
CloneVm: Internal Engine Error", I found that when cloud-init is used in
the vm's edit section, this error occurs, but when the vm is configured
without cloud init, the clone was completed successfully. I wondered if
this is a bug or something else?
The log file is in this link
https://paste.fedoraproject.org/paste/f~sHprL93BNZ-iJzoFDyww
Best Regards
7 years, 2 months
Dead hosts
by Maton, Brett
Hi,
I've replaced some hardware, and didn't remote 'hosted engine deploy'
before retireing the servers.
(actually I failed to remove them properly...)
How can I get rid of the 'old' hosts from the output of hosted-engine
--vm-status ?
oVirt 4.2 - pre
centOS 7.4
Regards,
Brett
7 years, 2 months
Engine crash, storage won't activate, hosts won't shutdown, template locked, gpu passthrough failed
by M R
Hello!
I have been using Ovirt for last four weeks, testing and trying to get
things working.
I have collected here the problems I have found and this might be a bit
long but help to any of these or maybe to all of them from several people
would be wonderful.
My version is ovirt node 4.1.5 and 4.1.6 downloaded from website latest
stable release at the time. Also tested with CentOS minimal +ovirt repo. In
this case, 3. is solved, but other problems persist.
1. Power off host
First day after installing ovirt node, it was able to reboot and shutdown
clean. No problems at all. After few days of using ovir, I have noticed
that hosts are unable to shutdown. I have tested this in several different
ways and come to the following conclusion. IF engine has not been started
after boot, all hosts are able to shutdown clean. But if engine is started
even once, none of the hosts are able to shutdown anymore. The only way to
get power off is to unplug or press power button for a longer time as hard
reset. I have failed to find a way to have the engine running and then
shutdown host. This effects to all hosts in the cluster.
2. Glusterfs failed
Every time I have booted hosts, glusterfs has failed. For some reason, it
turns inactive state even if I have setup systemctl enable glusterd. Before
this command it was just inactive. After this command, it will say "failed
(inactive). There is still a way to get glusterfs working. I have to give
command systemctl start glusterd manually and everything starts working.
Why do I have to give manual commands to start glusterfs? I have used this
for CentOS before and never had this problem before. Node installer is that
much different from the CentOS core?
3. Epel
As I said that I have used CentOS before, I would like to able to install
some packets from repo. But even if I install epel-release, it won't find
packets such as nano or htop. I have read about how to add epel-release to
ovirt node from here: https://www.ovirt.org/release/4.1.1/#epel
I have tested even manually edit repolist, but it will fail to find normal
epel packets. I have setup additional exclude=collectd* as guided in the
link above. This doesn't make any difference. All being said I am able to
install manually packets which are downloaded with other CentOS machine and
transferred with scp to ovirt node. Still, this once again needs a lot of
manual input and is just a workaround for the bug.
4. Engine startup
When I try to start the engine when glusterfs is up, it will say vm doesn't
exist, starting up. Still, it won't startup automatically. I have to give
several times command hosted-engine --vm-start. I wait for about 5minutes
until I give it next time. This will take usually about 30minutes and then
randomly. Completely randomly after one of the times, I give this command
engine shoots up and is up in 1minute. This has happened every time I boot
up. And the times that I have to give a command to start the engine, has
been changing. At best it's been 3rd time at worst it has been 7th time.
Calculating from there it might take from 15minutes to 35minutes to get the
engine up.Nevertheless, it will eventually come up every time. If there is
a way to get it up on the first try or even better, automatically up, it
would be great.
5. Activate storage
Once the engine is up, there has been a problem with storage. When I go to
storage tab, it will show all sources red. Even if I wait for 15~20minutes,
it won't get storage green itself. I have to go and press active button
from main data storage. Then it will get main storage up in
2~3munutes.Sometimes it fails it once, but will definitely get main data
storage up on the seconds try. And then magically at the same time all
other storages instantly go green. Main storage is glusterfs and I have 3
NFS storages as well. This is only a problem when starting up and once
storages are on green they stay green. Still annoying that it cannot get it
done by itself.
6.Template locked
I try to create a template from existing VM and it resulted in original VM
going into locked state and template being locked. I have read that some
other people had a similar problem and they were suggested to restart
engine to see if it solves it. For me it has been now a week and several
restarts of engine and hosts, but there is still one VM locked and template
locked as well. This is not a big problem, but still a problem. Everything
is grey and cannot delete this bugged VM or template.
7. unable to use GPU
I have been trying to do GPU passthrough with my VM. First, there was a
problem with qemu cmd line, but once I figure out a way to get commands, it
maybe is working(?). Log shows up fine, but it still doesn't give
functionality I¨m looking for. As I mentioned in the other email that I
have found this: https://www.mail-archive.com/users@ovirt.org/msg40422.html
. It will give right syntax in log, but still, won't fix error 43 with
nvidia drivers. If anybody got this working or has ideas how to do it,
would really like to know how it's done properly. I have also tested with
AMD graphics cards such as vega, but as soon as drivers have installed, I
will get a black screen. Even if I restart VM or hosts or both. I will only
see black screen and unable to use VM at all. I might be able to live with
the other six things listed above, but this one is a bit of a problem for
me. My use of VMs will eventually need graphical performance and therefore
I will have to get this working or find an alternative to ovirt..I have
found several things that I really like in ovirt and would prefer to use
it.
Best regards
Mikko
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_camp...>
Ei
viruksia. www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_camp...>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
7 years, 2 months
Help - Host unresponsive!
by Wesley Stewart
I have a single server that is running ovirt as a host and a storage
domain. I ran an update when the GUI told me that there was one.
I shutdown all of the VM's, placed the host in maintenance mode and did the
update. Upon rebooting the server, I was able to pull my VM's online
without any issue, but then, all of a sudden, vm's stopped responding as
well as the host.
The host is showing as "Down" and I cannot "Activate" it. Also
"Maintenance Mode" is greyed out.
Storage pools are "down" but eventually come back online, but the host
still will not come online.
Every few minutes, the host goes to "UP" right before failing and going
back "Down". To make it more confusing, like I mentioned before, this is
all in one box, so it isn't like their is a network issue between the
storage and the host boxes or anything.
Currently trying to reinstall the host and see if that helps, but I would
very much appreciate any sort of guidance, support or ideas!
Fencing failed on Storage Pool Manager OVIRT-Host for Data Center
OVIRT-Datacenter. Setting status to Non-Operational.
Host OVIRT-Host failed to recover.
7 years, 2 months
VM remote noVNC console
by Alex K
Hi all,
I am trying to get the VM console of a VM through SSH socks proxy.
This is a scenario I will frequently face, as the ovirt cluster will be
available only though a remote SSH tunnel.
I am trying several console options without success.
With SPICE or VNC I get issue with virt-viewer saying "Unable to connect to
libvirt with URI [none]'
With noVNC I get a separate tab on browser where it is stuck showing
"loading".
Has anyone success with this kind of remote console access?
Thanx,
Alex
7 years, 2 months
Debugging warning messages about bonding mode 4
by Gianluca Cecchi
Hello,
on a 2 nodes cluster in 4.1.6 I have this situation.
Every node has 3 bonds, each one composed by 2 network adapters and each
one of type mode=4
(actually in setup networks I have configured custom and then the value:
"mode=4 miimon=100"
)
At this moment only one of the servers has access to FC storage, while the
other is currently on maintenance.
On 2 of the 3 bonds of the active server I get an exclamation point in
"Network Interfaces" subtab with this mouseover popup
Bond is in link aggregation mode (mode 4), but no partner mac has been
reported for it
What is the exact meaning of this message? Do I have to care about (I think
so..)?
What should I report to network guys?
Eg, one of these two warning bonds status is:
# cat /proc/net/bonding/bond2
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: slow
Min links: 0
Aggregator selection policy (ad_select): stable
System priority: 65535
System MAC address: 48:df:37:0c:7f:5a
Active Aggregator Info:
Aggregator ID: 5
Number of ports: 2
Actor Key: 9
Partner Key: 6
Partner Mac Address: b8:38:61:9c:75:80
Slave Interface: ens2f2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 48:df:37:0c:7f:5a
Slave queue ID: 0
Aggregator ID: 5
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 2
Partner Churned Count: 3
details actor lacp pdu:
system priority: 65535
system mac address: 48:df:37:0c:7f:5a
port key: 9
port priority: 255
port number: 1
port state: 61
details partner lacp pdu:
system priority: 32768
system mac address: b8:38:61:9c:75:80
oper key: 6
port priority: 32768
port number: 293
port state: 61
Slave Interface: ens2f3
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 48:df:37:0c:7f:5b
Slave queue ID: 0
Aggregator ID: 5
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 0
Partner Churned Count: 3
details actor lacp pdu:
system priority: 65535
system mac address: 48:df:37:0c:7f:5a
port key: 9
port priority: 255
port number: 2
port state: 61
details partner lacp pdu:
system priority: 32768
system mac address: b8:38:61:9c:75:80
oper key: 6
port priority: 32768
port number: 549
port state: 61
Also, the other node (that is currently in maintenance) shows one of the 2
interfaces of bond2 (ens2f2) as down (red arrow) but on the host
# ip link show ens2f2
6: ens2f2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master
bond2 state UP mode DEFAULT qlen 1000
link/ether 48:df:37:0c:85:4e brd ff:ff:ff:ff:ff:ff
#
Does this depend on the host being in maintenance?
Perhaps when a host is in maintenance, the warnings on it are not
checked/updated again from engine?
Thanks in advance,
Gianluca
7 years, 2 months
Unable to grant permissions to AD users
by Michael Watters
I'm having some issues granting permissions to AD users in ovirt-engine
4.1. Users can log in but receive an error as below.
The user user@example.com(a)example.com is not authorized to perform login
I am also not able to grant this user any permissions through the admin
console. Entering a user name in the search field for the System
Permissions section results in a blank list. Attached is a screenshot
for reference.
Does anybody have an idea on what would cause this? The log files
aren't very useful and don't show any errors.
7 years, 2 months
VDI whit Ovirt Spice and NVIDIA passtrought
by codignotto .
Good night friends, I'm trying to make the passtrought GPU run using OVIRT
with an NVIDIA M2000 / K2200 and a K4000, I made several configurations,
the VM with windows recognizes the card, I install the NVIDIA drivers and
after restarting the windows and access using the client SPICE remote viwer
the mouse to work, everything works because the mouse does not work for
anything, already tested with Win8, Win10 and the problem persists, the
card is recognized but the mouse does not work.
Has anyone used it this way? Passtrought from GPU to a VM using SPICE? I'm
going to use these clients with 3d and adobe products.
Thank you for your help
Deny
7 years, 2 months
IOPS stats/reports from all hosts to storage
by Neil
Hi guys,
I'm running FC storage with 4 hosts on oVirt 3.6 and we've been having some
IOPS issues recently and the SAN provider has asked me to provide them with
the following info...
Datastore Stripe Size
Default VM Disk Stripe Size
Average IO Size
Average THROUGHPUT (MB/s)
Average IOPS
Maximum IOPS
Read/Write Percentage of IO
Datastore Average Latency
VM Disk Average Latency
All of this is from across all hosts and VM's to the storage domain. Is
there any way to get this kind of info from oVirt? I've been looking at
oVirt-reports but I don't see much as far as IO/throughput reporting goes.
Apologies if I've missed something obvious.
Thanks.
Regards.
Neil Wilson.
7 years, 2 months
