Actually this seems to be indicated as a bug here: 
http://ovirt.org/wiki/Engine_Node_Integration#Engine_core_machine

It is noted under "Additional Configuration" 

--> "These 2 steps are currently required due to bugs, they will be 
changed/removed once the patches that will fix them will be merged."

--> Change the default emulated VM type by executing:

--> psql -U postgres engine -c "update vdc_options set option_value='pc-0.14' 
where option_name='EmulatedMachine' and version='3.0';"

 

If this is the case I can open a bug on it as I searched bugzilla and do not 
see one open as pertains to this issue.

 

- Chris

 

From: Brown, Chris (GE Healthcare) 
Sent: Friday, January 27, 2012 8:47 AM
To: 'Haim Ateya'; Ofer Schreiber
Cc: [email protected]
Subject: RE: [Users] ovirt fails to start vm on EL based nodes

 

Is this something that could be turned into a documented "tunable" parameter 
for those that wish to use EL based distributions as nodes?

- Chris

 

From: Haim Ateya [mailto:[email protected]] 
Sent: Friday, January 27, 2012 3:12 AM
To: Ofer Schreiber
Cc: Brown, Chris (GE Healthcare); [email protected]
Subject: Re: [Users] ovirt fails to start vm on EL based nodes

 

 


On Jan 27, 2012, at 11:01, Ofer Schreiber <[email protected]> wrote:

        Great debugging. 

        Sounds like the 'EmulatedMachine' (hope that's the right attr) in 
engine-config is configured for fedora based nodes. 

         

        Would you mind openning a bug on this?

        Although I'm not sure oVirt supports RHEL completely. 

 

I don't think it's a bug; mean while, you can change 'EmulatedMachine' in 
vdc_options table from 'pc-0.14' to 'rhel6.2.0', restart Jboss, and it should 
work.

 

 

 

Ofer. 

 


On 27 Jan 2012, at 00:44, "Brown, Chris (GE Healthcare)" 
<[email protected]> wrote:

        The ovirt engine is failing to start virtual machines on EL based nodes.

        I think I have found the failure mode.

        The engine log shows:

        2012-01-26 16:01:45,200 INFO  
[org.ovirt.engine.core.vdsbroker.CreateVmVDSCommand] (pool-5-thread-48) FINISH, 
CreateVmVDSCommand, return: WaitForLaunch, log id: d1649a2

        2012-01-26 16:01:45,953 INFO  
[org.ovirt.engine.core.vdsbroker.vdsbroker.DestroyVDSCommand] 
(QuartzScheduler_Worker-89) START, DestroyVDSCommand(vdsId = 
e7df9be0-47a0-11e1-80f3-00144f8d7c32, 
vmId=6c84897b-4d2b-461b-ab64-b30bf9ff7b22, force=false, secondsToWait=0, 
gracefully=false), log id: 1269b196

        2012-01-26 16:01:45,997 INFO  
[org.ovirt.engine.core.vdsbroker.vdsbroker.DestroyVDSCommand] 
(QuartzScheduler_Worker-89) FINISH, DestroyVDSCommand, log id: 1269b196

        p012-01-26 16:01:46,020 INFO  
[org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] 
(QuartzScheduler_Worker-89) Running on vds during rerun failed vm: null

        2012-01-26 16:01:46,028 INFO  
[org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] 
(QuartzScheduler_Worker-89) vm winxp running in db and not running in vds - add 
to rerun treatment. vds kvmsrv03

        2012-01-26 16:01:46,042 ERROR 
[org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] 
(QuartzScheduler_Worker-89) Rerun vm 6c84897b-4d2b-461b-ab64-b30bf9ff7b22. 
Called from vds kvmsrv03

         

        On the EL node in libvirt.log in the <os> </os>section we see:

        *unnecessary output surpressed*

                        <os>

                                        <type arch="x86_64" 
machine="pc-0.14">hvm</type>

                                        <boot dev="cdrom"/>

                                        <boot dev="hd"/>

                                        <smbios mode="sysinfo"/>

                        </os>

        , flags=0

        16:25:42.074: 10537: error : virNetClientProgramDispatchError:170 : 
internal error process exited while connecting to monitor: Supported machines 
are:

        pc         RHEL 6.2.0 PC (alias of rhel6.2.0)

        rhel6.2.0  RHEL 6.2.0 PC (default)

        rhel6.1.0  RHEL 6.1.0 PC

        rhel6.0.0  RHEL 6.0.0 PC

        rhel5.5.0  RHEL 5.5.0 PC

        rhel5.4.4  RHEL 5.4.4 PC

        rhel5.4.0  RHEL 5.4.0 PC

         

        Thus output of qemu-kvm on the EL node is:

        [root@kvmsrv03 ~]# /usr/libexec/qemu-kvm -M ?

        Supported machines are:

        pc         RHEL 6.2.0 PC (alias of rhel6.2.0)

        rhel6.2.0  RHEL 6.2.0 PC (default)

        rhel6.1.0  RHEL 6.1.0 PC

        rhel6.0.0  RHEL 6.0.0 PC

        rhel5.5.0  RHEL 5.5.0 PC

        rhel5.4.4  RHEL 5.4.4 PC

        rhel5.4.0  RHEL 5.4.0 PC

         

        And the output on a Fedora 16 node is:

        [root@vmdev ~]# qemu-kvm -M ?

        Supported machines are:

        pc         Standard PC (alias of pc-0.14)

        pc-0.14    Standard PC (default)

        fedora-13  Standard PC

        pc-0.13    Standard PC

        pc-0.12    Standard PC

        pc-0.11    Standard PC, qemu 0.11

        pc-0.10    Standard PC, qemu 0.10

        isapc      ISA-only PC

         

        Thus it appears that ovirt-engine is passing an un-recognized 
"machine=" type when running on an EL node.

         

        - Chris

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