Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

So basically we need at least 2 nodes to enter the realm of testing and 
maintained?

If we’re talking pure oVirt here.

-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb




This message is confidential and may contain privileged information. 
It is intended for the named recipient only. 
If you receive it in error please notify me and permanently delete the original 
message and any copies. 


  

> On 05 Sep 2016, at 16:31, Fernando Frediani  
> wrote:
> 
> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be 
> pretty useful for many situations and doesn't need such thing like mounting 
> NFS in localhost.
> 
> It is not nice to not have a All-in-One stable solution anymore as this can 
> help with its adoption for later growth.
> 
> oVirt-Cockpit looks nice and intresting.
> 
> Fernando
> 
> 
> On 05/09/2016 05:18, Barak Korren wrote:
>> On 4 September 2016 at 23:45, zero four  wrote:
>> ...
>>> I understand and acknowledge that oVirt is not targeted towards homelab
>>> setups, or at least small homelab setups.  However I believe that having a
>>> solid configuration for such use cases would be a benefit to the project as
>>> a whole.
>> As others have already mentioned, using the full oVirt  with engine in
>> a single host scenario can work, but is not currently actively
>> maintained or tested.
>> 
>> There are other options originating from the oVirt community however.
>> 
>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>> use VDSM to manage VMs on a single host.
>> 
>> Another option is to use the Kimchi project [2] for which discussion
>> for making it an oVirt project had taken part in the past [3]. It
>> seems that also some work for inclusion in oVirt node was also planned
>> at some point [4].
>> 
>> [1]: http://www.ovirt.org/develop/release-management/features/cockpit/
>> [2]: https://github.com/kimchi-project/kimchi
>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>> [4]: 
>> http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>> 
> 
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

[ovirt-users] ovirt3.5 certificate problem

[Fedele Stabile]

I run ovirt3.5 
the name of my hosted-engine is ov-engine2 but in certificate i have
ov-engine1... I don't have any host with this name..
Can you help to change certificate?
If I want HostedEngine HA and try to execute the related command  
hosted-engine --deploy
it ends with an error 
2016-09-05 13:27:45 DEBUG otopi.context context.dumpEnvironment:500 ENV
BASE/exceptionInfo=list:'[(,
ConnectionError('[ERROR]::oVirt API connection 
failure, (51, "Unable to communicate securely with peer: requested
domain name does not match the server\'s certificate.")',), )]'


___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

[Simone Tiraboschi]

On Mon, Sep 5, 2016 at 5:09 PM, VONDRA Alain  wrote:

> To resume the situation and be the most clear I can.
>
> I have :
>
> -  2 hypervisors (physical) with CentOS 6.8 : HYP1 and HYP2
>
> -  1 oVirt manager 3.5  (physical and not hosted-engine) with
> CentOS 7.2
>
> And to be able to upgrade to oVirt 3.6 or more I need to upgrade the 2
> hypervisors to CentOS 7.2.
>
> So I began with HYP2, I’ve removed it from the Cluster, and installed it
> with CentOS 7.2, but when I wanted to join it to a new cluster as shown in
> the doc, HYP2 stayed always unresponsive.
>

We need vdsm logs to understand the issue here.
Could you please reproduce it?


> So I’ve restored the HYP2 to Centos 6.8, reinstalled it on the previous
> cluster and everything works well, but I really want to upgrade to CentOS
> 7.2 to be up-to-date, because I will have soonly more than two versions
> late.
>
>
>
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> * +33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
>
> *UNICEF France 3 rue Duguay Trouin  75006 PARIS*
> * www.unicef.fr  *
> 
>
> 
>
>   
>
>
>
> --
> 
>
> *De :* Yedidyah Bar David [mailto:d...@redhat.com]
> *Envoyé :* lundi 5 septembre 2016 15:53
>
> *À :* VONDRA Alain 
> *Cc :* Simone Tiraboschi ; users 
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
> On Mon, Sep 5, 2016 at 4:34 PM, VONDRA Alain  wrote:
>
> As you say, “This should”, but is there anybody there who tried this
> operation ?
>
>
>
> When I wrote [1], it worked for me.
>
> If something does not work for you, I think it's best to open a bug
>
> and attach all relevant logs, including hosted-engine-setup and vdsm
>
> logs from the host and all engine logs from the engine vm.
>
> I can't tell from your log snippet why your new host failed to attach
>
> to the storage domain. If it's reproducible, please check/post vdsm logs.
>
> [1] https://www.ovirt.org/documentation/how-to/hosted-
> engine-host-OS-upgrade/
>
>
>
> Is there any other option to upgrade the hypervisors ?
>
>
>
> Even if there is another option, the fact that you can't add a host
>
> is probably problematic in itself, no? What if you actually need to
>
> add a host?
>
> Did you try adding a el6 host and it did work?
>
> Best,
>
>
>
>
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> *+33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
> *UNICEF France*
> *3 rue Duguay Trouin  75006 PARIS*
> *www.unicef.fr *
>
> 
>
>
> --
>
> *De :* Yedidyah Bar David [mailto:d...@redhat.com]
> *Envoyé :* lundi 5 septembre 2016 12:22
>
>
> *À :* VONDRA Alain 
> *Cc :* Simone Tiraboschi ; users 
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
> On Mon, Sep 5, 2016 at 1:11 PM, VONDRA Alain  wrote:
>
> Unlikely, I didn’t save them, I had to rollback the host quickly before
> the Week-end.
>
> All that I can tell, that is all seemed to work well during the
> installation of the host, all the networks were connected to the SAN, but
> the host didn’t want to go UP, still staying unresponsive with the message
> below from the oVirt engine.
>
> Can you assure me that the installation of a physical hypervisor with
> CentOS 7, is possible if I put it on a different cluster than the other
> host using CentOS 6.8 ?
>
>
>
> Yes, this should work.
>
>
>
> Thanks
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> *+33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
> *UNICEF France*
> *3 rue Duguay Trouin  75006 PARIS*
> *www.unicef.fr *
>
> 
>
>
> --
>
> *De :* Yedidyah Bar David [mailto:d...@redhat.com]
> *Envoyé :* dimanche 4 septembre 2016 08:50
> *À :* VONDRA Alain 
> *Cc :* Simone Tiraboschi ; users 
>
>
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
> On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain  wrote:
>
> Hi,
>
> I’ve followed this doc, and hoped to find a solution with it, so I did’nt
> use the hosted-engine –deploy command, I’ve added a new host and at the end
> of the installation, the host stays 

Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

[VONDRA Alain]

To resume the situation and be the most clear I can.
I have :

-  2 hypervisors (physical) with CentOS 6.8 : HYP1 and HYP2

-  1 oVirt manager 3.5  (physical and not hosted-engine) with CentOS 7.2
And to be able to upgrade to oVirt 3.6 or more I need to upgrade the 2 
hypervisors to CentOS 7.2.
So I began with HYP2, I’ve removed it from the Cluster, and installed it with 
CentOS 7.2, but when I wanted to join it to a new cluster as shown in the doc, 
HYP2 stayed always unresponsive.
So I’ve restored the HYP2 to Centos 6.8, reinstalled it on the previous cluster 
and everything works well, but I really want to upgrade to CentOS 7.2 to be 
up-to-date, because I will have soonly more than two versions late.






Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr





[cid:signature_Unicef-France_a0c5ef98-a0b5-4b96-9e15-f37a03a75cb1.gif]










De : Yedidyah Bar David [mailto:d...@redhat.com]
Envoyé : lundi 5 septembre 2016 15:53
À : VONDRA Alain 
Cc : Simone Tiraboschi ; users 
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

On Mon, Sep 5, 2016 at 4:34 PM, VONDRA Alain 
> wrote:
As you say, “This should”, but is there anybody there who tried this operation ?

When I wrote [1], it worked for me.
If something does not work for you, I think it's best to open a bug
and attach all relevant logs, including hosted-engine-setup and vdsm
logs from the host and all engine logs from the engine vm.
I can't tell from your log snippet why your new host failed to attach
to the storage domain. If it's reproducible, please check/post vdsm logs.

[1] https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/

Is there any other option to upgrade the hypervisors ?

Even if there is another option, the fact that you can't add a host
is probably problematic in itself, no? What if you actually need to
add a host?
Did you try adding a el6 host and it did work?
Best,






Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr


[cid:image001.gif@01D20797.0E78A750]








De : Yedidyah Bar David [mailto:d...@redhat.com]
Envoyé : lundi 5 septembre 2016 12:22

À : VONDRA Alain >
Cc : Simone Tiraboschi >; users 
>
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

On Mon, Sep 5, 2016 at 1:11 PM, VONDRA Alain 
> wrote:
Unlikely, I didn’t save them, I had to rollback the host quickly before the 
Week-end.
All that I can tell, that is all seemed to work well during the installation of 
the host, all the networks were connected to the SAN, but the host didn’t want 
to go UP, still staying unresponsive with the message below from the oVirt 
engine.
Can you assure me that the installation of a physical hypervisor with CentOS 7, 
is possible if I put it on a different cluster than the other host using CentOS 
6.8 ?

Yes, this should work.

Thanks




Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr


[cid:image001.gif@01D20797.0E78A750]








De : Yedidyah Bar David [mailto:d...@redhat.com]
Envoyé : dimanche 4 septembre 2016 08:50
À : VONDRA Alain >
Cc : Simone Tiraboschi >; users 
>

Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain 
> wrote:
Hi,
I’ve followed this doc, and hoped to find a solution with it, so I did’nt use 
the hosted-engine –deploy command, I’ve added a new host and at the end of the 
installation, the host stays unresponsive because unable to be attached to the 
same Storage volume .
Engine log :
2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand] 

Re: [ovirt-users] Ovirt with bad IO performance

[Yaniv Kaul]

On Mon, Sep 5, 2016 at 1:45 PM, Gabriel Ozaki 
wrote:

> Hi Yaniv and Sandro
>
> The disk is in the same machine then ovirt-engine
>

I'm looking back at your results, and something is terribly wrong there:
For example, sysbench:

Host result:2.9843Mb/sec
Ovirt result:   1.1561Mb/sec
Xenserver result:   2.9006Mb/sec

This is slower than a USB1 disk on key performance. I don't know what to
make of it, but it's completely bogus. Even plain QEMU can get better
results than this.
And the 2nd benchmark:


**The novabench test:*
Ovirt result:  79Mb/s
Xenserver result:  101Mb/s

This is better, but still very slow. If I translate it to MB/s, it's
~10-12MBs - still very very slow.
If, however, this is MB/sec, then this makes sense - and is probably as
much as you can get from a single spindle.
The difference between XenServer and oVirt are more likely have to do with
caching than anything else. I don't know what the caching settings of
XenServer - can you ensure no caching ('direct IO') is used?



> Thanks
>
>
>
>
>
> 2016-09-02 15:31 GMT-03:00 Yaniv Kaul :
>
>>
>>
>> On Fri, Sep 2, 2016 at 6:11 PM, Gabriel Ozaki 
>> wrote:
>>
>>> Hi Yaniv
>>>
>>> Sorry guys, i don't explain well on my first mail, i notice a bad IO
>>> performance on *disk* benchmarks, the network are working really fine
>>>
>>
>> But where is the disk? If it's across the network, then network is
>> involved and is certainly a bottleneck.
>> Y.
>>
>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> 2016-09-02 12:04 GMT-03:00 Yaniv Kaul :
>>>
 On Fri, Sep 2, 2016 at 5:33 PM, Gabriel Ozaki <
 gabriel.oz...@kemi.com.br> wrote:

> Hi Nir, thanks for the answer
>
>
> *The nfs server is in the host?*
> Yes, i choose NFS to use as storage on ovirt host
>
> *- Is this 2.9GiB/s or 2.9 MiB/s?*
> Is MiB/s, i put the full test on paste bin
> centos guest on ovirt:
> http://pastebin.com/d48qfvuf
>
> centos guest on xenserver:
> http://pastebin.com/gqN3du29
>
> how the test works:
> https://www.howtoforge.com/how-to-benchmark-your-system-cpu-
> file-io-mysql-with-sysbench
>
> *- Are you testing using NFS in all versions?*
> i am using the v3 version
>
> *- What is the disk format?*
> partion size format
> /20Gb xfs
> swap 2 Gb xfs
> /dados rest of disk xfs   (note, this is the partition where i save
> the ISOs,exports and VM disks)
>
>
> *- How do you test io on the host?*
> I do a clean install of centos and do the test before i install the
> ovirt
> the test:
> http://pastebin.com/7RKU7778
>
> *- What kind of nic is used? (1G, 10G?)*
> Is only a 100mbps :(
>

 100Mbps will not get you more than several MB/s. 11MB/s on a very
 bright day...

>
> *We need much more details to understand what do you test here.*
> I have problems to upload the benchmark test on orvirt to novabench
> site, so here is the screenshot(i make a mistake on the last email i get
> the wrong value), is 86 Mb/s:
>

 Which is not possible on the wire. Unless it's VM to VM? And the
 storage is local, which means it's the bandwidth of the physical disk
 itself?
 Y.



>
> ​
> And the novabench on xenserver:
> https://novabench.com/compare.php?id=ba8dd628e4042dfc1f3d396
> 70b164ab11061671
>
> *- For Xenserver - detailed description of the vm and the storage
> configuration?*
> The host is the same(i install xenserver, do the tests before i
> install centos), the VM i use the same configuration of ovirt, 2 cores, 4
> Gb of ram and 60 Gb disk(in the default xenserver SR)
>
> *- For ovirt, can you share the vm command line, available in
> /var/log/libvirt/qemu/vmname.**log?*
> 2016-09-01 12:50:28.268+: starting up libvirt version: 1.2.17,
> package: 13.el7_2.5 (CentOS BuildSystem ,
> 2016-06-23-14:23:27, worker1.bsys.centos.org), qemu version: 2.3.0
> (qemu-kvm-ev-2.3.0-31.el7.16.1)
> LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
> QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name vmcentos -S -machine
> pc-i440fx-rhel7.2.0,accel=kvm,usb=off -cpu Haswell-noTSX -m
> size=4194304k,slots=16,maxmem=4294967296k -realtime mlock=off -smp
> 2,maxcpus=16,sockets=16,cores=1,threads=1 -numa
> node,nodeid=0,cpus=0-1,mem=4096 -uuid 21872e4b-7699-4502-b1ef-2c058eff1c3c
> -smbios type=1,manufacturer=oVirt,product=oVirt
> Node,version=7-2.1511.el7.centos.2.10,serial=03AA02FC-0414-0
> 5F8-D906-710700080009,uuid=21872e4b-7699-4502-b1ef-2c058eff1c3c
> -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/va
> r/lib/libvirt/qemu/domain-vmcentos/monitor.sock,server,nowait -mon
> 

Re: [ovirt-users] oVirt on a single server

[Fernando Frediani]

Adding Kimchi to oVirt node perhaps may be the easiest option. It can be 
pretty useful for many situations and doesn't need such thing like 
mounting NFS in localhost.


It is not nice to not have a All-in-One stable solution anymore as this 
can help with its adoption for later growth.


oVirt-Cockpit looks nice and intresting.

Fernando


On 05/09/2016 05:18, Barak Korren wrote:

On 4 September 2016 at 23:45, zero four  wrote:
...

I understand and acknowledge that oVirt is not targeted towards homelab
setups, or at least small homelab setups.  However I believe that having a
solid configuration for such use cases would be a benefit to the project as
a whole.

As others have already mentioned, using the full oVirt  with engine in
a single host scenario can work, but is not currently actively
maintained or tested.

There are other options originating from the oVirt community however.

One notable option is to use the Cockpit-oVirt plugin [1] which can
use VDSM to manage VMs on a single host.

Another option is to use the Kimchi project [2] for which discussion
for making it an oVirt project had taken part in the past [3]. It
seems that also some work for inclusion in oVirt node was also planned
at some point [4].

[1]: http://www.ovirt.org/develop/release-management/features/cockpit/
[2]: https://github.com/kimchi-project/kimchi
[3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
[4]: http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/



___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

[Yedidyah Bar David]

On Mon, Sep 5, 2016 at 4:34 PM, VONDRA Alain  wrote:

> As you say, “This should”, but is there anybody there who tried this
> operation ?
>

When I wrote [1], it worked for me.

If something does not work for you, I think it's best to open a bug
and attach all relevant logs, including hosted-engine-setup and vdsm
logs from the host and all engine logs from the engine vm.

I can't tell from your log snippet why your new host failed to attach
to the storage domain. If it's reproducible, please check/post vdsm logs.

[1]
https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/


> Is there any other option to upgrade the hypervisors ?
>

Even if there is another option, the fact that you can't add a host
is probably problematic in itself, no? What if you actually need to
add a host?

Did you try adding a el6 host and it did work?

Best,


>
>
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> * +33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
>
> *UNICEF France 3 rue Duguay Trouin  75006 PARIS*
> * www.unicef.fr  *
> 
>
> 
>
>   
>
>
>
> --
> 
>
> *De :* Yedidyah Bar David [mailto:d...@redhat.com]
> *Envoyé :* lundi 5 septembre 2016 12:22
>
> *À :* VONDRA Alain 
> *Cc :* Simone Tiraboschi ; users 
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
> On Mon, Sep 5, 2016 at 1:11 PM, VONDRA Alain  wrote:
>
> Unlikely, I didn’t save them, I had to rollback the host quickly before
> the Week-end.
>
> All that I can tell, that is all seemed to work well during the
> installation of the host, all the networks were connected to the SAN, but
> the host didn’t want to go UP, still staying unresponsive with the message
> below from the oVirt engine.
>
> Can you assure me that the installation of a physical hypervisor with
> CentOS 7, is possible if I put it on a different cluster than the other
> host using CentOS 6.8 ?
>
>
>
> Yes, this should work.
>
>
>
> Thanks
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> *+33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
> *UNICEF France*
> *3 rue Duguay Trouin  75006 PARIS*
> *www.unicef.fr *
>
> 
>
>
> --
>
> *De :* Yedidyah Bar David [mailto:d...@redhat.com]
> *Envoyé :* dimanche 4 septembre 2016 08:50
> *À :* VONDRA Alain 
> *Cc :* Simone Tiraboschi ; users 
>
>
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
> On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain  wrote:
>
> Hi,
>
> I’ve followed this doc, and hoped to find a solution with it, so I did’nt
> use the hosted-engine –deploy command, I’ve added a new host and at the end
> of the installation, the host stays unresponsive because unable to be
> attached to the same Storage volume .
>
> Engine log :
>
> 2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand]
> (org.ovirt.thread.pool-8-thread-28) Could not connect host unc-srv-hyp2
> to pool UNICEF with the message: null
>
> 2016-09-02 17:00:01,634 ERROR 
> [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand]
> (org.ovirt.thread.pool-8-thread-3) Command 
> ConnectStoragePoolVDSCommand(HostName
> = unc-srv-hyp2, HostId = ee1c57ce-1c77-47b1-b466-7bf99382dd77, vdsId =
> ee1c57ce-1c77-47b1-b466-7bf99382dd77, storagePoolId =
> 0002-0002-0002-0002-0193, masterVersion = 7) execution
> failed. Exception: IRSNoMasterDomainException: IRSGenericException:
> IRSErrorException: IRSNoMasterDomainException: Cannot find master domain:
> u'spUUID=0002-0002-0002-0002-0193, msdUUID=cc9ab4b2-9880-427b-
> 8f3b-61f03e520cbc'
>
>
>
> Please check/post vdsm logs from the host. Thanks.
>
>
>
>
>
>
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> *+33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
> *UNICEF France*
> *3 rue Duguay Trouin  75006 PARIS*
> *www.unicef.fr *
>
> 
>
>
> --
>
> *De :* Simone Tiraboschi [mailto:stira...@redhat.com]
> *Envoyé :* vendredi 2 septembre 2016 18:20
> *À :* VONDRA Alain 
> *Cc :* Nir Soffer ; users 
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
>
>

Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

[VONDRA Alain]

As you say, “This should”, but is there anybody there who tried this operation ?
Is there any other option to upgrade the hypervisors ?






Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr





[cid:signature_Unicef-France_a0c5ef98-a0b5-4b96-9e15-f37a03a75cb1.gif]










De : Yedidyah Bar David [mailto:d...@redhat.com]
Envoyé : lundi 5 septembre 2016 12:22
À : VONDRA Alain 
Cc : Simone Tiraboschi ; users 
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

On Mon, Sep 5, 2016 at 1:11 PM, VONDRA Alain 
> wrote:
Unlikely, I didn’t save them, I had to rollback the host quickly before the 
Week-end.
All that I can tell, that is all seemed to work well during the installation of 
the host, all the networks were connected to the SAN, but the host didn’t want 
to go UP, still staying unresponsive with the message below from the oVirt 
engine.
Can you assure me that the installation of a physical hypervisor with CentOS 7, 
is possible if I put it on a different cluster than the other host using CentOS 
6.8 ?

Yes, this should work.

Thanks




Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr


[cid:image001.gif@01D2078B.0AA94640]








De : Yedidyah Bar David [mailto:d...@redhat.com]
Envoyé : dimanche 4 septembre 2016 08:50
À : VONDRA Alain >
Cc : Simone Tiraboschi >; users 
>

Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain 
> wrote:
Hi,
I’ve followed this doc, and hoped to find a solution with it, so I did’nt use 
the hosted-engine –deploy command, I’ve added a new host and at the end of the 
installation, the host stays unresponsive because unable to be attached to the 
same Storage volume .
Engine log :
2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand] 
(org.ovirt.thread.pool-8-thread-28) Could not connect host unc-srv-hyp2 to pool 
UNICEF with the message: null
2016-09-02 17:00:01,634 ERROR 
[org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand] 
(org.ovirt.thread.pool-8-thread-3) Command 
ConnectStoragePoolVDSCommand(HostName = unc-srv-hyp2, HostId = 
ee1c57ce-1c77-47b1-b466-7bf99382dd77, vdsId = 
ee1c57ce-1c77-47b1-b466-7bf99382dd77, storagePoolId = 
0002-0002-0002-0002-0193, masterVersion = 7) execution failed. 
Exception: IRSNoMasterDomainException: IRSGenericException: IRSErrorException: 
IRSNoMasterDomainException: Cannot find master domain: 
u'spUUID=0002-0002-0002-0002-0193, 
msdUUID=cc9ab4b2-9880-427b-8f3b-61f03e520cbc'

Please check/post vdsm logs from the host. Thanks.







Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr


[cid:image001.gif@01D2078B.0AA94640]








De : Simone Tiraboschi [mailto:stira...@redhat.com]
Envoyé : vendredi 2 septembre 2016 18:20
À : VONDRA Alain >
Cc : Nir Soffer >; users 
>
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7



On Fri, Sep 2, 2016 at 5:21 PM, VONDRA Alain 
> wrote:
Hi,
I'd like to upgrade my oVirt environment from 3.5 to 3.6 and maybe 4, actually 
the manager oVirt is un 3.5 version, installed on a CentOS 7.2 and the two 
hypervisors are installed on CentOS 6.8.
I need anyway to upgrade the hosts to be able to move to 3.6.
I've tried to upgrade the first host, but I had of course issues telling that 
it can't be possible to mix different OS in the same cluster, I've also tried 
to create another cluster to put this host without success.
What is the best way to upgrade cleanly and safely ?
Thank you in advance for your advices

Follow this:

Re: [ovirt-users] Edit default vdsm.conf

[Martin Polednik]

On 05/09/16 23:06 +1000, mailingli...@mooash.com wrote:

For my own peace of mind (and just in case these defaults don't work
with our network setup), is there any info on the proper way to
achieve this?


On Mon, 5 Sep 2016, at 10:59 PM, Yaniv Kaul wrote:



On Thu, Sep 1, 2016 at 11:58 AM,  wrote:

Hey,

 I'm wondering how I change what gets put into the default
 vdsm.conf on
 oVirt systems?

 I've looked at the docs here
 (https://github.com/oVirt/ovirt-host-deploy/blob/master/README.environment)
 and they suggest I should be able to put something like this:

 [environment:init]
 VDSM_CONFIG/vars/migration_max_bandwidth=str:0
 VDSM_CONFIG/vars/max_outgoing_migrations=str:1

 In /etc/ovirt-host-deploy.conf.d/50-custom.conf on the engine
 (does it
 need to go on the hosts instead?)


The file needs to be present on the host(s). It's (hopefully) more
clear at [1] if you look at faqemu or fakevmstats section.

[1] https://github.com/oVirt/ovirt-host-deploy


 How ever I can't get that to work. The var above never gets
 deployed to
 the system and if I add it and reinstall oVirt (Right Click on
 Host ->
 Reinstall) the config gets wiped. Is this the proper way?
 Should I be
 putting this config somewhere else to get it to find it?

 The system its running on is on oVirt 3.6.x but will be
 upgraded to 4
 soon if that helps. Its also not a hosted Engine, a standalone one.
 Hosts are running C7 but Engine is still on C6 (about to be moved to
 C7).


If it'll be upgraded to 4.0 soon - don't bother. 4.0 has a great
performing migration schemes set up already.
Y.



Cheers,
 James
 ___
 Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users



___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users


___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Edit default vdsm.conf

[Yaniv Kaul]

On Thu, Sep 1, 2016 at 11:58 AM,  wrote:

> Hey,
>
> I'm wondering how I change what gets put into the default vdsm.conf on
> oVirt systems?
>
> I've looked at the docs here
> (https://github.com/oVirt/ovirt-host-deploy/blob/master/README.environment
> )
> and they suggest I should be able to put something like this:
>
> [environment:init]
> VDSM_CONFIG/vars/migration_max_bandwidth=str:0
> VDSM_CONFIG/vars/max_outgoing_migrations=str:1
>
> In /etc/ovirt-host-deploy.conf.d/50-custom.conf on the engine (does it
> need to go on the hosts instead?)
>
> How ever I can't get that to work. The var above never gets deployed to
> the system and if I add it and reinstall oVirt (Right Click on Host ->
> Reinstall) the config gets wiped. Is this the proper way? Should I be
> putting this config somewhere else to get it to find it?
>
> The system its running on is on oVirt 3.6.x but will be upgraded to 4
> soon if that helps. Its also not a hosted Engine, a standalone one.
> Hosts are running C7 but Engine is still on C6 (about to be moved to
> C7).
>

If it'll be upgraded to 4.0 soon - don't bother. 4.0 has a great performing
migration schemes set up already.
Y.


>
> Cheers,
> James
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Edit default vdsm.conf

[mailinglists]

Anyone have any idea on the below?

On Thu, 1 Sep 2016, at 06:58 PM, mailingli...@mooash.com wrote:
> Hey,
> 
> I'm wondering how I change what gets put into the default vdsm.conf on
> oVirt systems?
> 
> I've looked at the docs here
> (https://github.com/oVirt/ovirt-host-deploy/blob/master/README.environment)
> and they suggest I should be able to put something like this:
> 
> [environment:init]
> VDSM_CONFIG/vars/migration_max_bandwidth=str:0
> VDSM_CONFIG/vars/max_outgoing_migrations=str:1
> 
> In /etc/ovirt-host-deploy.conf.d/50-custom.conf on the engine (does it
> need to go on the hosts instead?)
> 
> How ever I can't get that to work. The var above never gets deployed to
> the system and if I add it and reinstall oVirt (Right Click on Host ->
> Reinstall) the config gets wiped. Is this the proper way? Should I be
> putting this config somewhere else to get it to find it?
> 
> The system its running on is on oVirt 3.6.x but will be upgraded to 4
> soon if that helps. Its also not a hosted Engine, a standalone one.
> Hosts are running C7 but Engine is still on C6 (about to be moved to
> C7).
> 
> Cheers,
> James
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Ovirt with bad IO performance

[Gabriel Ozaki]

Hi Yaniv and Sandro

The disk is in the same machine then ovirt-engine

Thanks





2016-09-02 15:31 GMT-03:00 Yaniv Kaul :

>
>
> On Fri, Sep 2, 2016 at 6:11 PM, Gabriel Ozaki 
> wrote:
>
>> Hi Yaniv
>>
>> Sorry guys, i don't explain well on my first mail, i notice a bad IO
>> performance on *disk* benchmarks, the network are working really fine
>>
>
> But where is the disk? If it's across the network, then network is
> involved and is certainly a bottleneck.
> Y.
>
>
>>
>>
>>
>>
>>
>>
>>
>> 2016-09-02 12:04 GMT-03:00 Yaniv Kaul :
>>
>>> On Fri, Sep 2, 2016 at 5:33 PM, Gabriel Ozaki >> > wrote:
>>>
 Hi Nir, thanks for the answer


 *The nfs server is in the host?*
 Yes, i choose NFS to use as storage on ovirt host

 *- Is this 2.9GiB/s or 2.9 MiB/s?*
 Is MiB/s, i put the full test on paste bin
 centos guest on ovirt:
 http://pastebin.com/d48qfvuf

 centos guest on xenserver:
 http://pastebin.com/gqN3du29

 how the test works:
 https://www.howtoforge.com/how-to-benchmark-your-system-cpu-
 file-io-mysql-with-sysbench

 *- Are you testing using NFS in all versions?*
 i am using the v3 version

 *- What is the disk format?*
 partion size format
 /20Gb xfs
 swap 2 Gb xfs
 /dados rest of disk xfs   (note, this is the partition where i save the
 ISOs,exports and VM disks)


 *- How do you test io on the host?*
 I do a clean install of centos and do the test before i install the
 ovirt
 the test:
 http://pastebin.com/7RKU7778

 *- What kind of nic is used? (1G, 10G?)*
 Is only a 100mbps :(

>>>
>>> 100Mbps will not get you more than several MB/s. 11MB/s on a very bright
>>> day...
>>>

 *We need much more details to understand what do you test here.*
 I have problems to upload the benchmark test on orvirt to novabench
 site, so here is the screenshot(i make a mistake on the last email i get
 the wrong value), is 86 Mb/s:

>>>
>>> Which is not possible on the wire. Unless it's VM to VM? And the storage
>>> is local, which means it's the bandwidth of the physical disk itself?
>>> Y.
>>>
>>>
>>>

 ​
 And the novabench on xenserver:
 https://novabench.com/compare.php?id=ba8dd628e4042dfc1f3d396
 70b164ab11061671

 *- For Xenserver - detailed description of the vm and the storage
 configuration?*
 The host is the same(i install xenserver, do the tests before i install
 centos), the VM i use the same configuration of ovirt, 2 cores, 4 Gb of ram
 and 60 Gb disk(in the default xenserver SR)

 *- For ovirt, can you share the vm command line, available in
 /var/log/libvirt/qemu/vmname.**log?*
 2016-09-01 12:50:28.268+: starting up libvirt version: 1.2.17,
 package: 13.el7_2.5 (CentOS BuildSystem ,
 2016-06-23-14:23:27, worker1.bsys.centos.org), qemu version: 2.3.0
 (qemu-kvm-ev-2.3.0-31.el7.16.1)
 LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
 QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name vmcentos -S -machine
 pc-i440fx-rhel7.2.0,accel=kvm,usb=off -cpu Haswell-noTSX -m
 size=4194304k,slots=16,maxmem=4294967296k -realtime mlock=off -smp
 2,maxcpus=16,sockets=16,cores=1,threads=1 -numa
 node,nodeid=0,cpus=0-1,mem=4096 -uuid 21872e4b-7699-4502-b1ef-2c058eff1c3c
 -smbios type=1,manufacturer=oVirt,product=oVirt
 Node,version=7-2.1511.el7.centos.2.10,serial=03AA02FC-0414-0
 5F8-D906-710700080009,uuid=21872e4b-7699-4502-b1ef-2c058eff1c3c
 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/va
 r/lib/libvirt/qemu/domain-vmcentos/monitor.sock,server,nowait -mon
 chardev=charmonitor,id=monitor,mode=control -rtc
 base=2016-09-01T09:50:28,driftfix=slew -global
 kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on
 -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device
 virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3 -device
 virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x4
 -drive file=/rhev/data-center/mnt/ovirt.kemi.intranet:_dados_iso/52
 ee9f87-9d38-48ec-8003-193262f81994/images/--
 --/CentOS-7-x86_64-NetInstall-1511.iso,if=no
 ne,id=drive-ide0-1-0,readonly=on,format=raw -device
 ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=2
 -drive file=/rhev/data-center/0001-0001-0001-0001-02bb/
 4ccdd1f3-ee79-4425-b6ed-5774643003fa/images/2ecfcf18-ae84-4e
 73-922f-28b9cda9e6e1/800f05bf-23f7-4c9d-8c1d-b2503592875f,if
 =none,id=drive-virtio-disk0,format=raw,serial=2ecfcf18-ae84-
 4e73-922f-28b9cda9e6e1,cache=none,werror=stop,rerror=stop,aio=threads
 -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virti
 

Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

[Yedidyah Bar David]

On Mon, Sep 5, 2016 at 1:11 PM, VONDRA Alain  wrote:

> Unlikely, I didn’t save them, I had to rollback the host quickly before
> the Week-end.
>
> All that I can tell, that is all seemed to work well during the
> installation of the host, all the networks were connected to the SAN, but
> the host didn’t want to go UP, still staying unresponsive with the message
> below from the oVirt engine.
>
> Can you assure me that the installation of a physical hypervisor with
> CentOS 7, is possible if I put it on a different cluster than the other
> host using CentOS 6.8 ?
>

Yes, this should work.


> Thanks
>
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> * +33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
>
> *UNICEF France 3 rue Duguay Trouin  75006 PARIS*
> * www.unicef.fr  *
> 
>
> 
>
>   
>
>
>
> --
> 
>
> *De :* Yedidyah Bar David [mailto:d...@redhat.com]
> *Envoyé :* dimanche 4 septembre 2016 08:50
> *À :* VONDRA Alain 
> *Cc :* Simone Tiraboschi ; users 
>
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
> On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain  wrote:
>
> Hi,
>
> I’ve followed this doc, and hoped to find a solution with it, so I did’nt
> use the hosted-engine –deploy command, I’ve added a new host and at the end
> of the installation, the host stays unresponsive because unable to be
> attached to the same Storage volume .
>
> Engine log :
>
> 2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand]
> (org.ovirt.thread.pool-8-thread-28) Could not connect host unc-srv-hyp2
> to pool UNICEF with the message: null
>
> 2016-09-02 17:00:01,634 ERROR 
> [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand]
> (org.ovirt.thread.pool-8-thread-3) Command 
> ConnectStoragePoolVDSCommand(HostName
> = unc-srv-hyp2, HostId = ee1c57ce-1c77-47b1-b466-7bf99382dd77, vdsId =
> ee1c57ce-1c77-47b1-b466-7bf99382dd77, storagePoolId =
> 0002-0002-0002-0002-0193, masterVersion = 7) execution
> failed. Exception: IRSNoMasterDomainException: IRSGenericException:
> IRSErrorException: IRSNoMasterDomainException: Cannot find master domain:
> u'spUUID=0002-0002-0002-0002-0193, msdUUID=cc9ab4b2-9880-427b-
> 8f3b-61f03e520cbc'
>
>
>
> Please check/post vdsm logs from the host. Thanks.
>
>
>
>
>
>
>
>
> --
>
> *Alain VONDRA   *
> *Chargé d'exploitation des Systèmes d'Information   *
> *Direction Administrative et Financière*
> *+33 1 44 39 77 76 <%2B33%201%2044%2039%2077%2076> *
> *UNICEF France*
> *3 rue Duguay Trouin  75006 PARIS*
> *www.unicef.fr *
>
> 
>
>
> --
>
> *De :* Simone Tiraboschi [mailto:stira...@redhat.com]
> *Envoyé :* vendredi 2 septembre 2016 18:20
> *À :* VONDRA Alain 
> *Cc :* Nir Soffer ; users 
> *Objet :* Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to
> CentOS 7
>
>
>
>
>
>
>
> On Fri, Sep 2, 2016 at 5:21 PM, VONDRA Alain  wrote:
>
> Hi,
> I'd like to upgrade my oVirt environment from 3.5 to 3.6 and maybe 4,
> actually the manager oVirt is un 3.5 version, installed on a CentOS 7.2 and
> the two hypervisors are installed on CentOS 6.8.
> I need anyway to upgrade the hosts to be able to move to 3.6.
> I've tried to upgrade the first host, but I had of course issues telling
> that it can't be possible to mix different OS in the same cluster, I've
> also tried to create another cluster to put this host without success.
> What is the best way to upgrade cleanly and safely ?
> Thank you in advance for your advices
>
>
>
> Follow this:
>
> https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/
>
>
>
> Simply ignore the steps that refers to the engine VM if you are with the
> engine on a physical system.
>
>
>
>
> Alain VONDRA
>
> Chargé d'exploitation des Systèmes d'Information
> Direction Administrative et Financière
> +33 1 44 39 77 76
>
> UNICEF France
> 3 rue Duguay Trouin  75006
> PARIS
> www.unicef.fr
>
>
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
>
> --
>
> Didi
>



-- 
Didi
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

[VONDRA Alain]

Unlikely, I didn’t save them, I had to rollback the host quickly before the 
Week-end.
All that I can tell, that is all seemed to work well during the installation of 
the host, all the networks were connected to the SAN, but the host didn’t want 
to go UP, still staying unresponsive with the message below from the oVirt 
engine.
Can you assure me that the installation of a physical hypervisor with CentOS 7, 
is possible if I put it on a different cluster than the other host using CentOS 
6.8 ?
Thanks





Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr





[cid:signature_Unicef-France_a0c5ef98-a0b5-4b96-9e15-f37a03a75cb1.gif]










De : Yedidyah Bar David [mailto:d...@redhat.com]
Envoyé : dimanche 4 septembre 2016 08:50
À : VONDRA Alain 
Cc : Simone Tiraboschi ; users 
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain 
> wrote:
Hi,
I’ve followed this doc, and hoped to find a solution with it, so I did’nt use 
the hosted-engine –deploy command, I’ve added a new host and at the end of the 
installation, the host stays unresponsive because unable to be attached to the 
same Storage volume .
Engine log :
2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand] 
(org.ovirt.thread.pool-8-thread-28) Could not connect host unc-srv-hyp2 to pool 
UNICEF with the message: null
2016-09-02 17:00:01,634 ERROR 
[org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand] 
(org.ovirt.thread.pool-8-thread-3) Command 
ConnectStoragePoolVDSCommand(HostName = unc-srv-hyp2, HostId = 
ee1c57ce-1c77-47b1-b466-7bf99382dd77, vdsId = 
ee1c57ce-1c77-47b1-b466-7bf99382dd77, storagePoolId = 
0002-0002-0002-0002-0193, masterVersion = 7) execution failed. 
Exception: IRSNoMasterDomainException: IRSGenericException: IRSErrorException: 
IRSNoMasterDomainException: Cannot find master domain: 
u'spUUID=0002-0002-0002-0002-0193, 
msdUUID=cc9ab4b2-9880-427b-8f3b-61f03e520cbc'

Please check/post vdsm logs from the host. Thanks.







Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr


[cid:image001.gif@01D2076E.98ACBCA0]








De : Simone Tiraboschi [mailto:stira...@redhat.com]
Envoyé : vendredi 2 septembre 2016 18:20
À : VONDRA Alain >
Cc : Nir Soffer >; users 
>
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7



On Fri, Sep 2, 2016 at 5:21 PM, VONDRA Alain 
> wrote:
Hi,
I'd like to upgrade my oVirt environment from 3.5 to 3.6 and maybe 4, actually 
the manager oVirt is un 3.5 version, installed on a CentOS 7.2 and the two 
hypervisors are installed on CentOS 6.8.
I need anyway to upgrade the hosts to be able to move to 3.6.
I've tried to upgrade the first host, but I had of course issues telling that 
it can't be possible to mix different OS in the same cluster, I've also tried 
to create another cluster to put this host without success.
What is the best way to upgrade cleanly and safely ?
Thank you in advance for your advices

Follow this:
https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/

Simply ignore the steps that refers to the engine VM if you are with the engine 
on a physical system.


Alain VONDRA

Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76

UNICEF France
3 rue Duguay Trouin  75006
PARIS
www.unicef.fr


___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users



--
Didi
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] oVirt on a single server

[Barak Korren]

On 4 September 2016 at 23:45, zero four  wrote:
...
> I understand and acknowledge that oVirt is not targeted towards homelab
> setups, or at least small homelab setups.  However I believe that having a
> solid configuration for such use cases would be a benefit to the project as
> a whole.

As others have already mentioned, using the full oVirt  with engine in
a single host scenario can work, but is not currently actively
maintained or tested.

There are other options originating from the oVirt community however.

One notable option is to use the Cockpit-oVirt plugin [1] which can
use VDSM to manage VMs on a single host.

Another option is to use the Kimchi project [2] for which discussion
for making it an oVirt project had taken part in the past [3]. It
seems that also some work for inclusion in oVirt node was also planned
at some point [4].

[1]: http://www.ovirt.org/develop/release-management/features/cockpit/
[2]: https://github.com/kimchi-project/kimchi
[3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
[4]: http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/

-- 
Barak Korren
bkor...@redhat.com
RHEV-CI Team
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Networking issues on Hosted Engine Appliance

[Edward Haas]

On Fri, Sep 2, 2016 at 10:49 AM, Simone Tiraboschi 
wrote:

>
>
> On Thu, Sep 1, 2016 at 10:45 PM, Bryan Sockel 
> wrote:
>
>> Having some issues with my Hosted Engine Appliance,  I am able to get it
>> up and running, and i can access it only from the server that is hosting
>> it.  The host server can ping the appliance, and the appliance can ping the
>> host server.  The host server can ping the rest of my network and get out
>> to the internet.
>>
>> This is a nested setup i am using for testing and poc and is running on a
>> vmware platform.
>>
>
> I'm not a VMWare expert but I suspect that you forgot enabling the
> Promiscuous Mode on the vSwitch where your virtual host is connected.
> vSwitch doesn't implement a MAC Learning algorithm and so only the frame
> addressed to a well known MAC address (such as the interfaces of host which
> is running as a VMWare virtual machine) will be sent over the right virtual
> port, other frames (the ones addressed to the hosted-engine nested VM for
> instance) will be lost.
> Promiscuous Mode mode will fix this behavior but of course it will also
> impact on the performance.
>
>
>
>> Server IP Config:
>>
>> eno16777984: flags=4163  mtu 1500
>> ether 00:50:56:01:0d:48  txqueuelen 1000  (Ethernet)
>> RX packets 572078  bytes 673729777 (642.5 MiB)
>> RX errors 0  dropped 0  overruns 0  frame 0
>> TX packets 342235  bytes 191490802 (182.6 MiB)
>> TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>> lo: flags=73  mtu 65536
>> inet 127.0.0.1  netmask 255.0.0.0
>> loop  txqueuelen 0  (Local Loopback)
>> RX packets 831524  bytes 6927010219 (6.4 GiB)
>> RX errors 0  dropped 0  overruns 0  frame 0
>> TX packets 831524  bytes 6927010219 (6.4 GiB)
>> TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>> ovirtmgmt: flags=4163  mtu 1500
>> inet 10.20.42.3  netmask 255.255.252.0  broadcast 10.20.43.255
>> ether 00:50:56:01:0d:48  txqueuelen 0  (Ethernet)
>> RX packets 957838  bytes 796793041 (759.8 MiB)
>> RX errors 0  dropped 0  overruns 0  frame 0
>> TX packets 795846  bytes 4627811240 (4.3 GiB)
>> TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>> vnet0: flags=4163  mtu 1500
>> ether fe:16:3e:20:fc:a2  txqueuelen 500  (Ethernet)
>> RX packets 3434  bytes 11065518 (10.5 MiB)
>> RX errors 0  dropped 0  overruns 0  frame 0
>> TX packets 9008  bytes 2493747 (2.3 MiB)
>> TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>>
>> Kernel IP routing table
>> Destination Gateway Genmask Flags Metric RefUse
>> Iface
>> default gw-lab.colo.test 0.0.0.0 UG0  00
>> ovirtmgmt
>> 10.20.40.0  0.0.0.0 255.255.252.0   U 0  00
>> ovirtmgmt
>> link-local  0.0.0.0 255.255.0.0 U 1004   00
>> ovirtmgmt
>>
>>
>> Appliance:
>> eth0: flags=4163  mtu 1500
>> inet 10.20.42.17  netmask 255.255.252.0  broadcast 10.20.43.255
>> ether 00:16:3e:20:fc:a2  txqueuelen 1000  (Ethernet)
>> RX packets 9489  bytes 2674331 (2.5 MiB)
>> RX errors 0  dropped 0  overruns 0  frame 0
>> TX packets 3655  bytes 11370881 (10.8 MiB)
>> TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>> lo: flags=73  mtu 65536
>> inet 127.0.0.1  netmask 255.0.0.0
>> loop  txqueuelen 0  (Local Loopback)
>> RX packets 67298  bytes 36550074 (34.8 MiB)
>> RX errors 0  dropped 0  overruns 0  frame 0
>> TX packets 67298  bytes 36550074 (34.8 MiB)
>> TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>>
>> Kernel IP routing table
>> Destination Gateway Genmask Flags Metric RefUse
>> Iface
>> default ovirt1.test.lab 0.0.0.0 UG10000
>> eth0
>> 10.20.40.0  0.0.0.0 255.255.252.0   U 10000
>> eth0
>>
>>
> Your server has a different gateway: gw-lab.colo.test
Your appliance has it set to ovirt1.test.lab.
Are these pointing to the same IP address?


>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] /var/run/ovirt-hosted-engine-ha/vm.conf not found

[Roy Golan]

btw is the hosted engine VM is listed in the web admin?

On 2 September 2016 at 16:40, Pat Riehecky  wrote:

> Hi Simone,
>
> Thanks for the follow up!
>
> I'll see about pulling out some log entries and getting a bugzilla filed
> with them attached.
>
> I was able to get it working again late last night by reinstalling the ha
> engine rpms and rebooting.  Not sure why that fixed it, but the engine
> fired right up shortly after and immediately saw all my running VMs.
>
> Pat
>
>
> On 09/02/2016 02:52 AM, Simone Tiraboschi wrote:
>
>
>
> On Thu, Sep 1, 2016 at 9:25 PM, Pat Riehecky  wrote:
>
>> Any suggestions for how I generate the alternate config?
>>
>>
> vm.conf will get generated when needed converting the ovf description in
> the OVF_STORE volume on the shared storage. The OVF_STORE volume and its
> content are managed by the engine; in this way you can edit the engine VM
> configuration from the engine in a distributed env.
>
> Now the question is why your system is failing on this step.
> Can you please attach your /var/log/ovirt-hosted-engine-ha/agent.log ?
>
>
>
>> Pat
>>
>>
>> On 09/01/2016 12:30 PM, Raymond wrote:
>>
>>> Same issue here, got it running with an alternate config
>>> hosted-engine  --vm-start --vm-conf=/etc/ovirt-hosted-engine/vm.conf
>>>
>>> Cheers
>>> Raymond
>>>
>>>
>>>
>>> - Original Message -
>>> From: "Pat Riehecky" 
>>> To: "users" 
>>> Sent: Thursday, September 1, 2016 6:41:08 PM
>>> Subject: [ovirt-users] /var/run/ovirt-hosted-engine-ha/vm.conf not found
>>>
>>> I seem to be unable to restart my ovirt hosted engine.
>>>
>>> I'd swear I had this issue once before, but couldn't find any notes on
>>> my end.
>>>
>>>
>>> # cat /etc/ovirt-hosted-engine/hosted-engine.conf
>>> fqdn=vmadmin.fnal.gov
>>> vm_disk_id=36a09f1d-0923-4b3b-87aa-4788ca64064e
>>> vm_disk_vol_id=c4244bdd-80c5-4f68-83c2-9494d9d05723
>>> vmid=823d3e5b-60c2-4e53-a9e8-313aedcaf808
>>> storage=None
>>> conf=/var/run/ovirt-hosted-engine-ha/vm.conf
>>> host_id=4
>>> console=qxl
>>> domainType=fc
>>> spUUID=----
>>> sdUUID=81f19871-4d91-4698-a97d-36452bfae281
>>> connectionUUID=73b61b0a-85f8-4fb7-8faf-c687ef7cc5d8
>>> ca_cert=/etc/pki/vdsm/libvirt-spice/ca-cert.pem
>>> ca_subject="C=EN, L=Test, O=Test, CN=Test"
>>> vdsm_use_ssl=true
>>> gateway=131.225.193.200
>>> bridge=ovirtmgmt
>>> metadata_volume_UUID=93cf12c5-d5e6-4ea6-bee7-de64ee52d7a5
>>> metadata_image_UUID=22a9849b-c551-4783-ad0c-530464df47f3
>>> lockspace_volume_UUID=0593a3b8-1d75-4be3-b65b-ce9a164d0309
>>> lockspace_image_UUID=2c8c56f2-1711-4867-8ed0-3c502bb635ff
>>> conf_volume_UUID=07c72aa5-7fd0-4159-b83e-4d078ae9c351
>>> conf_image_UUID=f9e59ec5-6903-4b2d-8164-4fce3d901bdd
>>>
>>> # The following are used only for iSCSI storage
>>> iqn=
>>> portal=
>>> user=
>>> password=
>>> port=
>>>
>>>
>>>
>>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] iSCSI domain on 4kn drives

[Martijn Grendelman]

Op 7-8-2016 om 8:19 schreef Yaniv Kaul:
>
> On Fri, Aug 5, 2016 at 4:42 PM, Martijn Grendelman
> > wrote:
>
> Op 4-8-2016 om 18:36 schreef Yaniv Kaul:
>> On Thu, Aug 4, 2016 at 11:49 AM, Martijn Grendelman
>> > > 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.
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] oVirt on a single server

[Yedidyah Bar David]

On Mon, Sep 5, 2016 at 9:37 AM, Nir Soffer  wrote:
> On Mon, Sep 5, 2016 at 8:46 AM, Philip Lo  wrote:
>> I'm running single node hosted engine 4.0.x with local NFS and it runs just
>> fine. Thanks
>>
>> Regards,
>> Philip Lo
>>
>> On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS 
>> wrote:
>>
>> I’m running 3.6 with local NFS for the hosted engine. I have more than one
>> host but they are all isolated and export they storage via local NFS. Setup
>> has been running since 1 year now.
>
> It run fine but it may deadlock :-)
>
> See
> - https://bugzilla.redhat.com/489889
> - https://access.redhat.com/solutions/22231

Indeed, see also:

https://lwn.net/Articles/595652/

>
> Such setup is ok for testing or development.

Another option is iSCSI, which AFAIU does not suffer from this problem.

And yet another option is using nested-kvm to run multiple virtual
"hosts" on a single physical one, and run hosted-engine on them, with
another VM serving nfs or iSCSI storage. This obviously provides lower
performance, but higher flexibility, and is probably ideal for learning
oVirt, testing etc. Obviously you can't create/maintain these hosts
using oVirt itself, but have to use e.g. virsh or virt-manager.

There is a project called lago [1] doing just that, and some of the CI
tests of oVirt already use it to do a full hosted-engine setup.

[1] http://lago.readthedocs.io/en/stable/
-- 
Didi
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

Oh wow. Well then I guess we are in a bad situation now. Don't really have the 
infra to move to shared storage...

Isn't this the same issue then with NFS over gluster?

Best,

Sent from my iPhone

> On 05 Sep 2016, at 08:37, Nir Soffer  wrote:
> 
>> On Mon, Sep 5, 2016 at 8:46 AM, Philip Lo  wrote:
>> I'm running single node hosted engine 4.0.x with local NFS and it runs just
>> fine. Thanks
>> 
>> Regards,
>> Philip Lo
>> 
>> On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS 
>> wrote:
>> 
>> I’m running 3.6 with local NFS for the hosted engine. I have more than one
>> host but they are all isolated and export they storage via local NFS. Setup
>> has been running since 1 year now.
> 
> It run fine but it may deadlock :-)
> 
> See
> - https://bugzilla.redhat.com/489889
> - https://access.redhat.com/solutions/22231
> 
> Such setup is ok for testing or development.
> 
> Nir


smime.p7s
Description: S/MIME cryptographic signature
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] oVirt on a single server

[Nir Soffer]

On Mon, Sep 5, 2016 at 8:46 AM, Philip Lo  wrote:
> I'm running single node hosted engine 4.0.x with local NFS and it runs just
> fine. Thanks
>
> Regards,
> Philip Lo
>
> On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS 
> wrote:
>
> I’m running 3.6 with local NFS for the hosted engine. I have more than one
> host but they are all isolated and export they storage via local NFS. Setup
> has been running since 1 year now.

It run fine but it may deadlock :-)

See
- https://bugzilla.redhat.com/489889
- https://access.redhat.com/solutions/22231

Such setup is ok for testing or development.

Nir
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users