[one-users] Load balancing in hybrid cloud

[Kristof Lange]

Hi Tom,

or you can write an easy script, which provides the actual cpu load as a 
webservice. Just install an cpu-tool (e.p. sysstat) on your image and do 
requests to all of your instances.
That's the way we handle loud balancing at that moment. But let me know 
about your successes, when you choose the way Ruben described.

Regards
Kristof


On 26.11.2010 17:51, Ruben S. Montero wrote:
> Hi Tom,
>
> OpenNebula's placement algorithm (match-making by default) only works
> at allocation time. You can specify if a VM can be placed in a local
> (private) or remote (public) cloud, you can even specify a rank to
> different clouds or hosts [1], but OpenNebula does not balance the
> VMs. A load balancer could be easily implemented with the OCA API, you
> can check our JAVA[2] and Ruby[3] bindings...
>
> [1] http://www.opennebula.org/documentation:rel2.0:schg
> [2] http://www.opennebula.org/documentation:rel2.0:java
> [3] http://www.opennebula.org/documentation:rel2.0:ruby
>
> Cheers and good luck
>
> Ruben
>
> On Thu, Nov 25, 2010 at 5:37 PM, Waterbley Tom<Tom.Waterbley at howest.be>  wrote:
>
>> Dear,
>>
>>
>>
>> I'm currently doing a master thesis with subject cloud computing. Now I have some questions about this cool subject.
>>
>> How is load balancing typically done in a hybrid cloud environment?
>>
>> The load balancer needs to know which VM's are up, and what's the load of every physical machine to add or drop VM's.
>>
>> How does OpenNebula this?
>>
>>
>>
>> Can somebody give me more information about load balancing in hybrid clouds?
>>
>>
>>
>> Thanks on advice!
>>
>>
>>
>> Tom
>>
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>>
>>
>
>
> --
> Dr. Ruben Santiago Montero
> Associate Professor (Profesor Titular), Complutense University of Madrid
>
> URL: http://dsa-research.org/doku.php?id=people:ruben
> Weblog: http://blog.dsa-research.org/?author=7
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>