Re: Gluster VM image Resync Time
by Strahil
By default ovirt uses 'sharding' which splits the files into logical chunks. This greatly reduces healing time, as VM's disk is not always completely overwritten and only the shards that are different will be healed.
Maybe you should change the default shard size.
Best Regards,
Strahil NikolovOn Mar 27, 2019 08:24, Indivar Nair <indivar.nair(a)techterra.in> wrote:
>
> Hi All,
>
> We are planning a 2 + 1 arbitrated mirrored Gluster setup.
> We would have around 50 - 60 VMs, with an average 500GB disk size.
>
> Now in case one of the Gluster Nodes go completely out of sync, roughly, how long would it take to resync? (as per your experience)
> Will it impact the working of VMs in any way?
> Is there anything to be taken care of, in advance, to prepare for such a situation?
>
> Regards,
>
>
> Indivar Nair
>
5 years
Any plans for oVirt and SBD fencing (a.k.a. poison pill)
by hunter86_bg＠yahoo.com
Hello Community,
Do you have any idea if SBD fencing mechanism will be implemented in the nearest future?
It will be nice to be able to resset a host just like corosync/pacemaker cluster implementation.
5 years
HostedEngine Deployment fails activating NFS Storage Domain hosted_storage via GUI Step 4
by Ralf Schenk
Hello,
I'm deploying HostedEngine to a NFS Storage. HostedEngineLocal ist setup
and running already. But Step 4 (Moving to hosted_storage Domain on NFS)
fails. The Host ist Node-NG 4.3.3.1 based.
The intended NFS Domain gets mounted in the host but activation (I think
via EngineAPI fails):
[ INFO ] TASK [ovirt.hosted_engine_setup : Activate storage domain]
[ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is
"[]". HTTP response code is 400.
[ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg":
"Fault reason is \"Operation Failed\". Fault detail is \"[]\". HTTP
response code is 400."}
mount in host shows:
storage.rxmgmt.databay.de:/ovirt/hosted_storage on
/rhev/data-center/mnt/storage.rxmgmt.databay.de:_ovirt_hosted__storage
type nfs4
(rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,namlen=255,soft,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys,clientaddr=172.16.252.231,local_lock=none,addr=172.16.252.3)
I also sshd into the locally running engine vi 192.168.122.XX and the VM
can mount the storage domain, too:
[root@engine01 ~]# mount storage.rxmgmt.databay.de:/ovirt/hosted_storage
/mnt/ -o vers=4.1
[root@engine01 ~]# mount | grep nfs
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
storage.rxmgmt.databay.de:/ovirt/hosted_storage on /mnt type nfs4
(rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.122.71,local_lock=none,addr=172.16.252.3)
[root@engine01 ~]# ls -al /mnt/
total 18
drwxrwxr-x. 3 vdsm kvm 4 Apr 30 12:59 .
dr-xr-xr-x. 17 root root 224 Apr 16 14:31 ..
drwxr-xr-x. 4 vdsm kvm 4 Apr 30 12:40
4dc42146-b3fb-47ec-bf06-8d9bf7cdf893
-rwxr-xr-x. 1 vdsm kvm 0 Apr 30 12:55 __DIRECT_IO_TEST__
Anything I can do ?
Log-Extract of ovirt-hosted-engine-setup-ansible-create_storage_domain
included.
--
*Ralf Schenk*
fon +49 (0) 24 05 / 40 83 70
fax +49 (0) 24 05 / 40 83 759
mail *rs(a)databay.de* <mailto:rs@databay.de>
*Databay AG*
Jens-Otto-Krag-Straße 11
D-52146 Würselen
*www.databay.de* <http://www.databay.de>
Sitz/Amtsgericht Aachen • HRB:8437 • USt-IdNr.: DE 210844202
Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, Dipl.-Kfm.
Philipp Hermanns
Aufsichtsratsvorsitzender: Wilhelm Dohmen
------------------------------------------------------------------------
5 years
Re: Host needs to be reinstalled after configuring power management
by Michael Watters
Same here. The ssh host keys on our host nodes never change but there
must be something in the ovirt database that needs to be updated.
On 5/16/19 6:20 PM, Andrew DeMaria wrote:
> That did the trick, thank you! That is really strange behavior however
> considering the fingerprint did not change..
>
> On Thu, May 16, 2019 at 7:14 AM Michael Watters <wattersm(a)watters.ws
> <mailto:wattersm@watters.ws>> wrote:
>
> Had the same message on our cluster. The solution was to click
> edit on each host and refetch the ssh host key. I'm not sure why
> this is necessary in the first place however.
>
>
> On 5/14/19 3:15 PM, Andrew DeMaria wrote:
>> Hi,
>>
>> I am running ovirt 4.3 and have found the following action item
>> immediately after configuring power management for a host:
>>
>> Host needs to be reinstalled as important configuration changes
>> were applied on it.
>>
>>
>> The thing is - I've just freshly installed this host and it seems
>> strange that I need to reinstall it.
>> Is there a better way to install a host and configure power
>> management without having to reinstall it after?
>>
>>
>> Thanks,
>>
>> Andrew
>>
>> _______________________________________________
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> _______________________________________________
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> <mailto:users-leave@ovirt.org>
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>
5 years
Re: seal a rhel8 vm for templating fails
by Strahil
Can you try on a linux host to seal the VM via virt-sysprep ?
Maybe virt-sysprep is not EL 8 ready...
Best Regards,
Strahil NikolovOn May 16, 2019 19:15, Nathanaël Blanchet <blanchet(a)abes.fr> wrote:
>
> Hi,
>
> I was used to successfully seal some el7 vms when templating, but with
> rhel8, it always fails with that logs:
>
> 2019-05-16 15:45:03,499+02 ERROR
> [org.ovirt.engine.core.bll.AddVmTemplateCommand]
> (EE-ManagedThreadFactory-engineScheduled-Thread-55)
> [db02e602-4b9d-4935-908c-e9e8c90a808b] Ending command
> 'org.ovirt.engine.core.bll.AddVmTemplateCommand' with failure.
> 2019-05-16 15:45:03,533+02 INFO
> [org.ovirt.engine.core.vdsbroker.SetVmStatusVDSCommand]
> (EE-ManagedThreadFactory-engineScheduled-Thread-55)
> [db02e602-4b9d-4935-908c-e9e8c90a808b] START, SetVmStatusVDSCommand(
> SetVmStatusVDSCommandParameters:{vmId='b79d8d62-212a-4f62-b236-3be6f1ed251e',
> status='Down', exitStatus='Normal'}), log id: 7e657121
> 2019-05-16 15:45:03,538+02 INFO
> [org.ovirt.engine.core.vdsbroker.SetVmStatusVDSCommand]
> (EE-ManagedThreadFactory-engineScheduled-Thread-55)
> [db02e602-4b9d-4935-908c-e9e8c90a808b] FINISH, SetVmStatusVDSCommand,
> log id: 7e657121
> 2019-05-16 15:45:03,546+02 INFO
> [org.ovirt.engine.core.bll.AddVmTemplateCommand]
> (EE-ManagedThreadFactory-engineScheduled-Thread-55)
> [db02e602-4b9d-4935-908c-e9e8c90a808b] Lock freed to object
> 'EngineLock:{exclusiveLocks='[rhel8.0=TEMPLATE_NAME,
> 8fb93ef2-d8a1-4d95-afed-c37131312462=TEMPLATE,
> 3ae1ad71-193b-4222-9727-159b402fef49=DISK]',
> sharedLocks='[b79d8d62-212a-4f62-b236-3be6f1ed251e=VM]'}'
> 2019-05-16 15:45:03,560+02 ERROR
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
> (EE-ManagedThreadFactory-engineScheduled-Thread-55)
> [db02e602-4b9d-4935-908c-e9e8c90a808b] EVENT_ID:
> USER_ADD_VM_TEMPLATE_SEAL_FAILURE(1,324), Failed to seal Template
> rhel8.0 (VM: thym-rhel8).
>
> But I successfully make a el8 template without sealing, but the issue is
> that subscription-manager doesn't activate properly when creating new
> vms from it.
>
> ovirt 3.3.3
>
> --
> 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
> _______________________________________________
> Users mailing list -- users(a)ovirt.org
> To unsubscribe send an email to users-leave(a)ovirt.org
> Privacy Statement: https://www.ovirt.org/site/privacy-policy/
> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/
> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/OO7EGM25KWG...
5 years
Dropped RX Packets
by Magnus Isaksson
Hello all!
I'm having quite some trouble with VMs that have a large amount of dropped packets on RX.
This, plus customers complain about short dropped connections, for example one customer has a SQL server and an other serevr connecting to it, and it is randomly dropping connections. Before they moved their VM:s to us they did not have any of these issues.
Does anyone have an idea of what this can be due to? And how can i fix it? It is starting to be a deal breaker for our customers on whether they will stay with us or not.
I was thinking of reinstalling the nodes with oVirt Node, instead of the full CentOS, would this perhaps fix the issue?
The enviroment is:
Huawei x6000 with 4 nodes
Each node having Intel X722 network card and connecting with 10G (fiber) to a Juniper EX 4600. Storage via FC to a IBM FS900.
Each node is running a full CentOS 7.6 connecting to a Engine 4.2.8.2
Regards
Magnus
5 years
seal a rhel8 vm for templating fails
by Nathanaël Blanchet
Hi,
I was used to successfully seal some el7 vms when templating, but with
rhel8, it always fails with that logs:
2019-05-16 15:45:03,499+02 ERROR
[org.ovirt.engine.core.bll.AddVmTemplateCommand]
(EE-ManagedThreadFactory-engineScheduled-Thread-55)
[db02e602-4b9d-4935-908c-e9e8c90a808b] Ending command
'org.ovirt.engine.core.bll.AddVmTemplateCommand' with failure.
2019-05-16 15:45:03,533+02 INFO
[org.ovirt.engine.core.vdsbroker.SetVmStatusVDSCommand]
(EE-ManagedThreadFactory-engineScheduled-Thread-55)
[db02e602-4b9d-4935-908c-e9e8c90a808b] START, SetVmStatusVDSCommand(
SetVmStatusVDSCommandParameters:{vmId='b79d8d62-212a-4f62-b236-3be6f1ed251e',
status='Down', exitStatus='Normal'}), log id: 7e657121
2019-05-16 15:45:03,538+02 INFO
[org.ovirt.engine.core.vdsbroker.SetVmStatusVDSCommand]
(EE-ManagedThreadFactory-engineScheduled-Thread-55)
[db02e602-4b9d-4935-908c-e9e8c90a808b] FINISH, SetVmStatusVDSCommand,
log id: 7e657121
2019-05-16 15:45:03,546+02 INFO
[org.ovirt.engine.core.bll.AddVmTemplateCommand]
(EE-ManagedThreadFactory-engineScheduled-Thread-55)
[db02e602-4b9d-4935-908c-e9e8c90a808b] Lock freed to object
'EngineLock:{exclusiveLocks='[rhel8.0=TEMPLATE_NAME,
8fb93ef2-d8a1-4d95-afed-c37131312462=TEMPLATE,
3ae1ad71-193b-4222-9727-159b402fef49=DISK]',
sharedLocks='[b79d8d62-212a-4f62-b236-3be6f1ed251e=VM]'}'
2019-05-16 15:45:03,560+02 ERROR
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(EE-ManagedThreadFactory-engineScheduled-Thread-55)
[db02e602-4b9d-4935-908c-e9e8c90a808b] EVENT_ID:
USER_ADD_VM_TEMPLATE_SEAL_FAILURE(1,324), Failed to seal Template
rhel8.0 (VM: thym-rhel8).
But I successfully make a el8 template without sealing, but the issue is
that subscription-manager doesn't activate properly when creating new
vms from it.
ovirt 3.3.3
--
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
5 years
Re: oVirt Open Source Backup solution?
by Strahil
Derek,
That's risky.
Just read lock the DB, create the lvm snapshot and release the lock.
Otherwise you risk a transaction to be interrupted.
Best Regards,
Strahil NikolovOn May 13, 2019 16:47, Derek Atkins <derek(a)ihtfp.com> wrote:
>
> Strahil <hunter86_bg(a)yahoo.com> writes:
>
> > Another option is to create a snapshot, backup the snapahot and merge
> > the disks (delete the snapshot actually).
> > Sadly that option doesn't work with Databases, as you might inyerrupt
> > a transaction and leave the DB in inconsistent state.
>
> Yet another reason to do it from inside the VM.
>
> What I do (on systems that have a running database) is to run a "flush"
> operation to sync the database to disk, and then from within the flush
> operation I create an LVM snapshot, and then I backup off the snapshot.
> If I'm not running a database, then I just create the snapshot directly.
>
> > Best Regards,
> > Strahil Nikolov
>
> -derek
> --
> Derek Atkins 617-623-3745
> derek(a)ihtfp.com www.ihtfp.com
> Computer and Internet Security Consultant
> _______________________________________________
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> To unsubscribe send an email to users-leave(a)ovirt.org
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5 years
oVirt Open Source Backup solution?
by michael＠wanderingmad.com
Is there a good low to no-cost solution to backup oVirt and the virtual machines? I've been unabel to find something that will do a direct VM backup instead of a backup agent installed on VM
5 years
