[Users] Problem running virtual machines

[jose garcia]

On 07/27/2012 09:36 AM, Itamar Heim wrote:
> On 07/26/2012 07:38 PM, jose garcia wrote:
>> Apologies, version is 3.1.0-0.1.20120620git6ef9f8.fc17
>>
>> On 07/26/2012 05:18 PM, jose garcia wrote:
>>> Good evening,
>>>
>>> I am running oVirt 3.
>>>
>>> I am not sure if the source of the problem is oVirt or KVM/qemu but
>>> the machines run really slow since some days ago. There are some
>>> warnings regarding iscsi storage latency in the oVirt portal but the
>>> behaviour is also present with NFS storage.
>>>
>>> There are no visible errors either in engine.log or vdsm.log.
>>> Var/log/messages in the node shows over and over:
>>>
>>>     /usr/sbin/irqbalance: Load average increasing, re-enabling all
>>>     cpus for irq balancing
>>>
>
> what type of storage? what networking from host to storage?

Good morning,

I have got two nodes for an iSCSI datacenter and another for a NFS 
datacenter. The machines run slow whatever the datacenter or node is 
used (all run fedora 17, recently updated).

Networking is basic. Only ovirtmgmt bridge and one network interface is 
used per node.

What is strange is that the VMs seem to run without any problem, only 
they take more time to perform any activity. That, of course, causes 
problems to ovirt-engine and the delays tend to set a node in a 
non-operational state, specially when installing.

>
>
>>>
>>> and, after a while, waits in the node rise over 50%. It finally leads
>>> to a disconnection of the SPM node and a non-operational state.
>>>
>>> Has anyone any ideas why this happens?
>>>
>>> Regards,
>>>
>>> Jose Garcia
>>>
>>>
>>
>>
>>
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>
>