Load Balancing in CloudSim

[yashu .]

Hi everyone , i m a newbie to Cloud Computing platform and CloudSim . I was wondering can  Load balance be  implemented in  cloudsim .If so please help me how to proceed. 

Regards,

P S L Yaswanth.

VIT University

[Rodrigo Calheiros]

Dear yashu,

where to implement load balancing policies depends on how you are
planning it to happen:

- if you want data center to balance the load of physical hosts
regarding VMs, you have to implement in the VMAllocationPolicy;

- if you want to balance the load of VMs running an application, it
has to be implemented in your Broker.

Regards,
Rodrigo

[yashu .]

Thanks Rodrigo . I want to know what's the difference between the existing open source tools (Eucalyptus and open nebula)for implementing cloud computing and CloudSim . which would be preferable to implement resource allocation and load balancing .

Regards,

P S L Yaswanth

[Rodrigo Calheiros]

Hi,

it depends on the exact nature of your project:

- if you want to develop a real load balancer, that is going to run in
your cluster of virtualized hosts, then I suggest you to look for
Eucalyptus or Open Nebula.

- On the other hand, if you don't have (or don't want to) use physical
resources for your project, then you should consider simulation tool
(like CloudSim).

A good reference for different types of experimentation, and when and
why use each one is:

Gustedt, J.; Jeannot, E. & Quinson, M. Experimental methodologies for
large-scale systems: a survey, Parallel Processing Letters, World
Scientific, 2009, 19, 399-418.

Regards,
Rodrigo

[Kian Min Ngeow]

Hi Rodrigo,

I am also a newbie to CloudSim working on load balancing in CloudSim.
How would you suggest to show the results of load balancing among VMs?
Is it by showing their memory/CPU parameters?

On Feb 23, 6:51 am, Rodrigo Calheiros <rodrigo.calhei...@gmail.com>
wrote:

> Hi,
>
> it depends on the exact nature of your project:
>
> - if you want to develop a real load balancer, that is going to run in
> your cluster of virtualized hosts, then I suggest you to look for
> Eucalyptus or Open Nebula.
>
> - On the other hand, if you don't have (or don't want to) use physical
> resources for your project, then you should consider simulation tool
> (like CloudSim).
>
> A good reference for different types of experimentation, and when and
> why use each one is:
>
> Gustedt, J.; Jeannot, E. & Quinson, M. Experimental methodologies for
> large-scale systems: a survey, Parallel Processing Letters, World
> Scientific, 2009, 19, 399-418.
>
> Regards,
> Rodrigo

[Rodrigo Calheiros]

Hi!

I think it depends on the goals of your load balancing algorithm, for example:

- if you are load balancing to help reducing execution time of
applications, you can show application performance with and without
load balancing

- if the goal is having a fair utilization of all resources, show the
utilization of resources with and without the load balancing

and so on...

Regards,
Rodrigo

[Kian Min Ngeow]

Hi Rodrigo,

Is it possible for me to request the CloudSim library?

[Rodrigo Calheiros]

Hi!

You can get the source code, libraries, examples and the documentation
either in the CloudSim web page

http://www.cloudbus.org/cloudsim/

or in Google code:

http://code.google.com/p/cloudsim/

Regards,
Rodrigo

[jasmin]

Hello,
Doing MTech- final year ..wanted to do my research & dessertation in
CloudSim - Cloud Computing -

The project undertaken on CLOUD ANALYST is excellent and useful in
the
area of Cloud Computing.
im interested in this area to give my
dessertation:


1)How can I Explore the VM load balancing and service load balancing
(service brokerage) algorithms. ...'?

Now Having gone through -the cloudsim api's + examples..+Cloud
computing papers + discussions here.... how to proceed? (VMAllocation/
Service broker policy)
how this area is useful for further implementation.. and what can I do
for my MTech level dessertation/research.?
Pls give an initial thread so that i can start from where to go
about?!!


Pls Guide..


Jasmin James

[Rodrigo Calheiros]

Hi!

Load balancing algorithms can be applied in various levels in a
simulation. It has been discussed in this list previously: the exact
answer depends on WHAT you want to load balance... this can be
explored in different levels, form the VM level to the application
level.

also, what to do depends on the type of research you want to do.
Simulation allows you to test algorithms and methods, but does not
support execution of real applications or applying the technique
(directly) in a real environment. Therefore, if your plan is
developing an algorithm that can be used in a real Cloud system, I
suggest you to explore tools such as Eucalyptus or open Nebula since
the beginning.

However, if you are happy in having your results validated only in the
simulator and without real implementation or utilization of real
systems and resources, that you can develop your research with
simulation.

In either case, there are plenty of research opportunities to be
explored: for example, in the case of load balance, it could be
explored in aspects such as:

- you have a PaaS/SaaS infrastructure, where lots of requests for
services are received. These requests have to be distributed to the
available VMs to be processed. how to distribute it to minimize
service execution time? How to decide number and characteristics of
VMs that process this requests?

- in the same scenario as before, your infrastructure for processing
the requests may be divided between different data centers (from the
same or different providers). How to distribute the requests among
them, so service execution time is minimized? (in this case, a new
dimension can be added: different providers may charge differently for
the resources, and this would have to be considered together with the
load balancing algorithms.)

There are, off course, lots of other problems. A good approach for
identifying potential research problems to investigate is looking for
"future works" section of papers in Clouds, or even identifying by
yourself unsolved problems in the papers you read. an example of the
latter: you read a paper you liked the problem it explored, but you
don't agree with the assumptions (for example, some assumptions from
the paper do not look realistic or make it not useful for your
particular interest) them, you can explore the same problem without
such assumptions.

Success in your research!

Regards,
Rodrigo

[jasmin]

Thanks for your valuable guidance..Rodrigo.. il come back to you after
going through these areas u specified more specifically...
hv more queries regarding 'load balancing' -cloudsim:

which API's in CLOUDSIM toolkit (cloudsim-2.1\sources\org\cloudbus
\cloudsim) specifically are helpful in :
1) VmAllocation policy - ? i think 3 API's namely:Vm,
VmAllocationPolicy,VmAllocationPolicySimple.,.........??

2) Service Broker poliocy ? API's:
DatacenterBroker,......................??

3)What is HostDynamicWorkload API used for? is it related to Service
Broker policy Dynamic Service Broker policy (Cloudanalyst)?

3) Does 'load balancing' topic comes in 'Scaling CC' area- one of the
challenges for CC. If yes how and where it comes? Allocation-
provisioning/Deallocation-deprovisioning/Automatic allocation,etc..

4) Is VM migration a part of 'load balancing' in SCALING or it comes
in Vm 'SCHEDULING' part ?

Pls tell... will be going through these API's then..
since im going through this topic first... if i find this beneficial i
would like to continue in this only then..

Thanks
Jasmin






On Mar 14, 4:03 am, Rodrigo Calheiros <rodrigo.calhei...@gmail.com>
wrote:

> On 14 March 2011 02:46, jasmin <james.jasmi...@gmail.com> wrote:
>
>
>
> > Hello,
> > Doing MTech- final year ..wanted to do my research & dessertation in
> > CloudSim - Cloud Computing -
>
> > The project undertaken on CLOUD ANALYST is excellent and useful in
> > the
> > area of Cloud Computing.
> > im interested in this area to give my
> > dessertation:
>
> > 1)How can I Explore the VM load balancing and service load balancing
> > (service brokerage) algorithms. ...'?
>
> > Now Having gone through -the cloudsim api's + examples..+Cloud
> > computing papers + discussions here.... how to proceed? (VMAllocation/
> > Service broker policy)
> > how this area is useful for further implementation.. and what can I do
> > for my MTech level dessertation/research.?
> > Pls give an initial thread so that i can start from where to go
> > about?!!
>
> > Pls Guide..
>

> > Jasmin James- Hide quoted text -
>
> - Show quoted text -

[Rodrigo Calheiros]

Hi!

Find the answers below:

On 15 March 2011 06:30, jasmin <james.j...@gmail.com> wrote:
> Thanks for your valuable guidance..Rodrigo.. il come back to you after
> going through these areas u specified more specifically...
> hv more queries regarding 'load balancing' -cloudsim:
>
> which API's in CLOUDSIM toolkit (cloudsim-2.1\sources\org\cloudbus
> \cloudsim) specifically are helpful in :
> 1) VmAllocation policy - ? i think 3 API's namely:Vm,
> VmAllocationPolicy,VmAllocationPolicySimple.,.........??
>

I think "Host" is also relevant for VmAllocation policy.

> 2) Service Broker poliocy ? API's:
> DatacenterBroker,......................??
>
> 3)What is HostDynamicWorkload API used for? is it related to Service
> Broker policy Dynamic Service Broker policy (Cloudanalyst)?
>

DatacenterBroker is an example class showing how to model interactions
between broker and Datacenter. Here, relevant classes are Vm,
Datacenter, and Cloudlet.

HostSDynamicworkload is intended to be used together with other
classes for power-aware scheduling.

> 3) Does 'load balancing' topic comes in 'Scaling CC' area- one of the
> challenges for CC. If yes how and where it comes? Allocation-
> provisioning/Deallocation-deprovisioning/Automatic allocation,etc..
>
> 4) Is VM migration a part of 'load balancing' in SCALING or it comes
> in Vm 'SCHEDULING' part ?
>

The answer to these questions are not objective, it depends on
personal opinions about each topic. Same topics can be explored from
different perspectives, and then the solution to the problem will
start from different assumptions. So, you can explore VM migration or
load balancing from the perspective of scaling, or scheduling, "green
computing"... you call.

> Pls tell... will be going through these API's then..
> since im going through this topic first... if i find this beneficial i
> would like to continue in this only then..
>
> Thanks
> Jasmin
>

Regards,
Rodrigo

[narender reddy]

Hello All,
            I am new to cloud sim, and am doing m,tech thesis as load balancing on virtual machines, i also read the total conversation. I want develop the new load balancing algorithm in vmallocation policy. Please let me know how to simulate the vmallocationsimple source program and how to generate the manual load for this


Regards,
Narender Reddy,
 

[Maimit Patel]

tnax sir,

I have to implement load balancing at VM level using CloudSim.
But, problem is in which class or whatever i have to write my code, my algorithm process follows.

first, identify overloaded Vms,underloaded vms and balanced vms based on load. how to find load of the vms. after that short vms based on load underloaded vms in ascending  order and overloaded vms in descending order.after that find waiting cloudlets from overloaded vms from and move it to underloaded vm using priority. I am consider non-preemptive independent task.

plz help me for this process...  

[Muhammad Sohail]

Hi Maimit Patel,

Please give me some hints about the class which I can change.
I am also stuck with the same problem.