Snapshot and disk size allocation
by jorgevisentini＠gmail.com
Hello everyone.
I would like to know how disk size and snapshot allocation works, because every time I create a new snapshot, it increases 1 GB in the VM's disk size, and when I remove the snap, that space is not returned to Domain Storage.
I'm using the oVirt 4.3.10
How do I reprovision the VM disk?
Thank you all.
3 years, 5 months
oVirt 4.3 DWH with Grafana
by Vrgotic, Marko
Dear oVirt,
We are currently running oVirt 4.3 and upgrade/migration to 4.4 won’t be possible for few more months.
I am looking into guidelines, how to, for setting up Grafana using DataWarehouse as data source.
Did anyone already did this, and would be willing to share the steps?
Kindly awaiting your reply.
-----
kind regards/met vriendelijke groeten
Marko Vrgotic
Sr. System Engineer @ System Administration
ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: m.vrgotic(a)activevideo.com<mailto:m.vrgotic@activevideo.com>
w: www.activevideo.com<http://www.activevideo.com>
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3 years, 6 months
Template for Ubuntu 18.04 Server Issues
by jeremy_tourville＠hotmail.com
I have built a system as a template on oVirt. Specifically, Ubuntu 18.04 server.
I am noticing an issue when creating new vms from that template. I used the check box for "seal template" when creating the template.
When I create a new Ubuntu VM I am getting duplicate IP addresses for all the machines created from the template.
It seems like the checkbox doesn't fully function as intended. I would need to do further manual steps to clear up this issue.
Has anyone else noticed this behavior? Is this expected or have I missed something?
Thanks for your input!
3 years, 6 months
Libgfapi considerations
by Jayme
Are there currently any known issues with using libgfapi in the latest
stable version of ovirt in hci deployments? I have recently enabled it and
have noticed a significant (over 4x) increase in io performance on my vms.
I’m concerned however since it does not seem to be an ovirt default
setting. Is libgfapi considered safe and stable to use in ovirt 4.3 hci?
3 years, 9 months
Re: Parent checkpoint ID does not match the actual leaf checkpoint
by Nir Soffer
On Sun, Jul 19, 2020 at 5:38 PM Łukasz Kołaciński <l.kolacinski(a)storware.eu>
wrote:
> Hello,
> Thanks to previous answers, I was able to make backups. Unfortunately, we
> had some infrastructure issues and after the host reboots new problems
> appeared. I am not able to do any backup using the commands that worked
> yesterday. I looked through the logs and there is something like this:
>
> 2020-07-17 15:06:30,644+02 ERROR
> [org.ovirt.engine.core.bll.StartVmBackupCommand]
> (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-54)
> [944a1447-4ea5-4a1c-b971-0bc612b6e45e] Failed to execute VM backup
> operation 'StartVmBackup': {}:
> org.ovirt.engine.core.common.errors.EngineException: EngineException:
> org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException:
> VDSGenericException: VDSErrorException: Failed to StartVmBackupVDS, error =
> Checkpoint Error: {'parent_checkpoint_id': None, 'leaf_checkpoint_id':
> 'cd078706-84c0-4370-a6ec-654ccd6a21aa', 'vm_id':
> '116aa6eb-31a1-43db-9b1e-ad6e32fb9260', 'reason': '*Parent checkpoint ID
> does not match the actual leaf checkpoint*'}, code = 1610 (Failed with
> error unexpected and code 16)
>
>
It looks like engine sent:
parent_checkpoint_id: None
This issue was fix in engine few weeks ago.
Which engine and vdsm versions are you testing?
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.VdsHandler.handleVdsResult(VdsHandler.java:114)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.VDSBrokerFrontendImpl.runVdsCommand(VDSBrokerFrontendImpl.java:33)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.CommandBase.runVdsCommand(CommandBase.java:2114)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.StartVmBackupCommand.performVmBackupOperation(StartVmBackupCommand.java:368)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.StartVmBackupCommand.runVmBackup(StartVmBackupCommand.java:225)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.StartVmBackupCommand.performNextOperation(StartVmBackupCommand.java:199)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback.childCommandsExecutionEnded(SerialChildCommandsExecutionCallback.java:32)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.ChildCommandsCallbackBase.doPolling(ChildCommandsCallbackBase.java:80)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller.invokeCallbackMethodsImpl(CommandCallbacksPoller.java:175)
> at
> deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller.invokeCallbackMethods(CommandCallbacksPoller.java:109)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at
> java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
> at
> org.glassfish.javax.enterprise.concurrent//org.glassfish.enterprise.concurrent.internal.ManagedScheduledThreadPoolExecutor$ManagedScheduledFutureTask.access$201(ManagedScheduledThreadPoolExecutor.java:383)
> at
> org.glassfish.javax.enterprise.concurrent//org.glassfish.enterprise.concurrent.internal.ManagedScheduledThreadPoolExecutor$ManagedScheduledFutureTask.run(ManagedScheduledThreadPoolExecutor.java:534)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> at
> org.glassfish.javax.enterprise.concurrent//org.glassfish.enterprise.concurrent.ManagedThreadFactoryImpl$ManagedThread.run(ManagedThreadFactoryImpl.java:250)
>
>
> And the last error is:
>
> 2020-07-17 15:13:45,835+02 ERROR
> [org.ovirt.engine.core.bll.StartVmBackupCommand]
> (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-14)
> [f553c1f2-1c99-4118-9365-ba6b862da936] Failed to execute VM backup
> operation 'GetVmBackupInfo': {}:
> org.ovirt.engine.core.common.errors.EngineException: EngineException:
> org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException:
> VDSGenericException: VDSErrorException: Failed to GetVmBackupInfoVDS, error
> = No such backup Error: {'vm_id': '116aa6eb-31a1-43db-9b1e-ad6e32fb9260',
> 'backup_id': 'bf1c26f7-c3e5-437c-bb5a-255b8c1b3b73', 'reason': '*VM
> backup not exists: Domain backup job id not found: no domain backup job
> present'*}, code = 1601 (Failed with error unexpected and code 16)
>
>
This is likely a result of the first error. If starting backup failed the
backup entity
is deleted.
> (these errors are from full backup)
>
> Like I said this is very strange because everything was working correctly.
>
>
> Regards
>
> Łukasz Kołaciński
>
> Junior Java Developer
>
> e-mail: l.kolacinski(a)storware.eu
> <m.helbert(a)storware.eu>
>
>
>
>
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3 years, 10 months
poweroff and reboot with ovirt_vm ansible module
by Nathanaël Blanchet
Hello, is there a way to poweroff or reboot (without stopped and running
state) a vm with the ovirt_vm ansible module?
--
Nathanaël Blanchet
Supervision réseau
Pôle Infrastrutures Informatiques
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5
Tél. 33 (0)4 67 54 84 55
Fax 33 (0)4 67 54 84 14
blanchet(a)abes.fr
3 years, 10 months
supervdsm failing during network_caps
by Alan G
Hi,
I have issues with one host where supervdsm is failing in network_caps.
I see the following trace in the log.
MainProcess|jsonrpc/1::ERROR::2020-01-06 03:01:05,558::supervdsm_server::100::SuperVdsm.ServerCallback::(wrapper) Error in network_caps
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/supervdsm_server.py", line 98, in wrapper
res = func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/network/api.py", line 56, in network_caps
return netswitch.configurator.netcaps(compatibility=30600)
File "/usr/lib/python2.7/site-packages/vdsm/network/netswitch/configurator.py", line 317, in netcaps
net_caps = netinfo(compatibility=compatibility)
File "/usr/lib/python2.7/site-packages/vdsm/network/netswitch/configurator.py", line 325, in netinfo
_netinfo = netinfo_get(vdsmnets, compatibility)
File "/usr/lib/python2.7/site-packages/vdsm/network/netinfo/cache.py", line 150, in get
return _stringify_mtus(_get(vdsmnets))
File "/usr/lib/python2.7/site-packages/vdsm/network/netinfo/cache.py", line 59, in _get
ipaddrs = getIpAddrs()
File "/usr/lib/python2.7/site-packages/vdsm/network/netinfo/addresses.py", line 72, in getIpAddrs
for addr in nl_addr.iter_addrs():
File "/usr/lib/python2.7/site-packages/vdsm/network/netlink/addr.py", line 33, in iter_addrs
with _nl_addr_cache(sock) as addr_cache:
File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/lib/python2.7/site-packages/vdsm/network/netlink/__init__.py", line 92, in _cache_manager
cache = cache_allocator(sock)
File "/usr/lib/python2.7/site-packages/vdsm/network/netlink/libnl.py", line 469, in rtnl_addr_alloc_cache
raise IOError(-err, nl_geterror(err))
IOError: [Errno 16] Message sequence number mismatch
A restart of supervdsm will resolve the issue for a period, maybe 24 hours, then it will occur again. So I'm thinking it's resource exhaustion or a leak of some kind?
Running 4.2.8.2 with VDSM at 4.20.46.
I've had a look through the bugzilla and can't find an exact match, closest was this one https://bugzilla.redhat.com/show_bug.cgi?id=1666123 which seems to be a RHV only fix.
Thanks,
Alan
4 years
Gluster volume slower then raid1 zpool speed
by Harry O
Hi,
Can anyone help me with the performance on my 3 node gluster on zfs (it is setup with one arbiter)
The performance on the single vm I have on it (with engine) is 50% worse then a single bare metal disk, on the writes.
I have enabled "Optimize for virt store"
I run 1Gbps 1500MTU network, could this be the write performance killer?
Is this to be expected from a 2xHDD zfs raid one on each node, with 3xNode arbiter setup?
Maybe I should move to raid 5 or 6?
Maybe I should add SSD cache to raid1 zfs zpools?
What are your thoughts? What to do for optimize this setup?
I would like to run zfs with gluster and I can deal with a little performance loss, but not that much.
4 years, 2 months
OVN and change of mgmt network
by Gianluca Cecchi
Hello,
I previously had OVN running on engine (as OVN provider with northd and
northbound and southbound DBs) and hosts (with OVN controller).
After changing mgmt ip of hosts (engine has retained instead the same ip),
I executed again on them the command:
vdsm-tool ovn-config <ip_of_engine> <nel_local_ip_of_host>
Now I think I have to clean up some things, eg:
1) On engine
where I get these lines below
systemctl status ovn-northd.service -l
. . .
Sep 29 14:41:42 ovmgr1 ovsdb-server[940]: ovs|00005|reconnect|ERR|tcp:
10.4.167.40:37272: no response to inactivity probe after 5 seconds,
disconnecting
Oct 03 11:52:00 ovmgr1 ovsdb-server[940]: ovs|00006|reconnect|ERR|tcp:
10.4.167.41:52078: no response to inactivity probe after 5 seconds,
disconnecting
The two IPs are the old ones of two hosts
It seems that a restart of the services has fixed...
Can anyone confirm if I have to do anything else?
2) On hosts (there are 3 hosts with OVN on ip 10.4.192.32/33/34)
where I currently have this output
[root@ov301 ~]# ovs-vsctl show
3a38c5bb-0abf-493d-a2e6-345af8aedfe3
Bridge br-int
fail_mode: secure
Port "ovn-1dce5b-0"
Interface "ovn-1dce5b-0"
type: geneve
options: {csum="true", key=flow, remote_ip="10.4.192.32"}
Port "ovn-ddecf0-0"
Interface "ovn-ddecf0-0"
type: geneve
options: {csum="true", key=flow, remote_ip="10.4.192.33"}
Port "ovn-fd413b-0"
Interface "ovn-fd413b-0"
type: geneve
options: {csum="true", key=flow, remote_ip="10.4.168.74"}
Port br-int
Interface br-int
type: internal
ovs_version: "2.7.2"
[root@ov301 ~]#
The IPs of kind 10.4.192.x are ok.
But there is a left-over of an old host I initially used for tests,
corresponding to 10.4.168.74, that now doesn't exist anymore
How can I clean records for 1) and 2)?
Thanks,
Gianluca
4 years, 2 months
