[Users] Starting VM gets paused

[Jaco]

I got hit up with the same issue - I think it had something to do with 
latency or timeout to my NAS/SAN, despite an isolated & prioritised 
storage network.
I'm guessing the VDSM puts VM's in a paused state whenever it hits a 
slight panic or speed-wobble.

I've, for the time-being, moved to a NFS/POSIX share & the issues has 
not presented again.

- J

On 22/03/13 22:59, Nicolas Ecarnot wrote:
> Hi,
>
> After two months of stable usage of this 3.1 oVirt setup, here comes 
> the first blocking issue for which I've no other mean to ask some hint.
>
> When I'm starting a VM, the start process is running fine. Being fast 
> enough, we can ssh-connect to it, but 5 seconds later, the VM is paused.
>
> In the manager, I see that :
>
> 2013-03-22 09:42:57,435 ERROR 
> [org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerObjectsBuilder] 
> (QuartzScheduler_Worker-40) Error in parsing vm pause status. Setting 
> value to NONE
> 2013-03-22 09:42:57,436 INFO 
> [org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] 
> (QuartzScheduler_Worker-40) VM serv-chk-adm3 
> 3e17586d-bf8f-465b-8075-defaac90bc95 moved from PoweringUp --> Paused
>
> And on the host, I see  one warning message, no error msg, and many 
> looping repeated messages :
>
> * Warning :
>
> Thread-1968::WARNING::2013-03-22 
> 09:19:18,536::libvirtvm::1547::vm.Vm::(_readPauseCode) 
> vmId=`3e17586d-bf8f-465b-8075-defaac90bc95`::_readPauseCode 
> unsupported by libvirt vm
>
> * Repeated msgs, amongst other repeated ones :
> Thread-1973::DEBUG::2013-03-22 
> 09:19:20,247::libvirtvm::220::vm.Vm::(_getNetworkStats) 
> vmId=`3e17586d-bf8f-465b-8075-defaac90bc95`::Network stats not available
> Thread-1973::DEBUG::2013-03-22 
> 09:19:20,247::libvirtvm::240::vm.Vm::(_getDiskStats) 
> vmId=`3e17586d-bf8f-465b-8075-defaac90bc95`::Disk hdc stats not available
>
>
> I made my homework and found some bugs that could be similar :
> https://bugzilla.redhat.com/show_bug.cgi?id=660598
> https://bugzilla.redhat.com/show_bug.cgi?id=672208
> and moreover :
> https://bugzilla.redhat.com/show_bug.cgi?id=695393
>
> - I tried to restart the node's vds daemon : same behavior
> - I tried to reboot the node : same behavior
> - I tried to to restart the manager's engine : same behavior
> - I tried to run this VM on another node : same behavior
> - I tried to run another VM on the node I saw the issue : the other VM 
> is running fine.
>
> I don't know if I have to conclude that this issue is specific to this 
> VM, but I sounds like yes.
> Things to say about this VM :
> - it it a RH6 IIRC. It has already been successfully started, 
> migrated, stopped and rebooted many times in the past.
> - it has 3 disks : one for the system and two for datas.
> - it has no snapshots
> - it has no different or complicated network setup
>
> My storage domain is a SAN, iSCSI linked, and doing good job since 
> months.
>
> I must admit I'm a bit stuck. Last thing I haven't tried is to reboot 
> the manager, though I'm not sure that would help.
>