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From Lahiru Sandaruwan <lahi...@wso2.com>
Subject Re: [GSOC - 2015] Introducing “curve fitting” for statistics prediction algorithm of Autoscaler
Date Fri, 27 Mar 2015 08:16:42 GMT
Hi Pranavan,

I cannot access the proposal by the provided URL.

Thanks.

On Thu, Mar 26, 2015 at 11:34 PM, Pranavan Theivendiram <
pranavan.11@cse.mrt.ac.lk> wrote:

> Hi Lahiru,
>
> I have submitted my proposal, Here is the link
>
> https://www.google-melange.com/gsoc/proposal/review/student/google/gsoc2015/pranavan_theivendiram/5629499534213120
>
> Please check this.
>
> Thanks
>
> Regards,
> *T. Pranavan*
> *BSc Eng Undergraduate| Department of Computer Science & Engineering
> ,University of Moratuwa*
> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
> *Mobile| *0775136836
>
> On 26 March 2015 at 20:59, Pranavan Theivendiram <
> pranavan.11@cse.mrt.ac.lk> wrote:
>
>> Hi Lahiru,
>>
>> Thanks once again for the valuable comments and the advices that you have
>> provided.
>>
>> *T. Pranavan*
>> *BSc Eng Undergraduate| Department of Computer Science & Engineering
>> ,University of Moratuwa*
>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>> *Mobile| *0775136836
>>
>> On 26 March 2015 at 20:33, Lahiru Sandaruwan <lahirus@wso2.com> wrote:
>>
>>>
>>>
>>> On Thu, Mar 26, 2015 at 8:23 PM, Pranavan Theivendiram <
>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>
>>>> Hi Lahiru,
>>>>
>>>> I did not submit yet. Today, I am going to submit it.
>>>> Do you have anything that I have to add?
>>>>
>>>
>>> No. I think this is good to go.
>>>
>>> Thanks.
>>>
>>>>
>>>> *T. Pranavan*
>>>> *BSc Eng Undergraduate| Department of Computer Science & Engineering
>>>> ,University of Moratuwa*
>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>> *Mobile| *0775136836
>>>>
>>>> On 26 March 2015 at 20:22, Pranavan Theivendiram <
>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>
>>>>> Hi Lahiru,
>>>>>
>>>>> I did not submit yet. Today, I am going to submit it.
>>>>> Do you have anything that I have to add?
>>>>>
>>>>> *T. Pranavan*
>>>>> *BSc Eng Undergraduate| Department of Computer Science & Engineering
>>>>> ,University of Moratuwa*
>>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>> *Mobile| *0775136836
>>>>>
>>>>> On 26 March 2015 at 19:22, Lahiru Sandaruwan <lahirus@wso2.com>
wrote:
>>>>>
>>>>>> Hi Pranavan,
>>>>>>
>>>>>> Did you submit the proposal?
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> On Wed, Mar 25, 2015 at 7:22 PM, Pranavan Theivendiram <
>>>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>>>
>>>>>>> Hi Lahiru,
>>>>>>>
>>>>>>> I will be available whole day. If you give a time, then we can
talk.
>>>>>>>
>>>>>>> *T. Pranavan*
>>>>>>> *BSc Eng Undergraduate| Department of Computer Science &
Engineering
>>>>>>> ,University of Moratuwa*
>>>>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>>>> *Mobile| *0775136836
>>>>>>>
>>>>>>> On 25 March 2015 at 18:45, Lahiru Sandaruwan <lahirus@wso2.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Sure. Let me check on possible time.
>>>>>>>>
>>>>>>>> Thanks/
>>>>>>>>
>>>>>>>> On Wed, Mar 25, 2015 at 5:04 PM, Pranavan Theivendiram <
>>>>>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>>>>>
>>>>>>>>> Hi Lahiru,
>>>>>>>>>
>>>>>>>>> Shall we have hangout on saturday?
>>>>>>>>>
>>>>>>>>> *T. Pranavan*
>>>>>>>>> *BSc Eng Undergraduate| Department of Computer Science
&
>>>>>>>>> Engineering ,University of Moratuwa*
>>>>>>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>
>>>>>>>>> On 25 March 2015 at 10:39, Pranavan Theivendiram <
>>>>>>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>>>>>>
>>>>>>>>>> Ok Lahiru.
>>>>>>>>>>
>>>>>>>>>> I have noted down some problems in understanding
the code base.
>>>>>>>>>> We will have hangout in near future and let us resolve
it out.
>>>>>>>>>>
>>>>>>>>>> *T. Pranavan*
>>>>>>>>>> *BSc Eng Undergraduate| Department of Computer Science
&
>>>>>>>>>> Engineering ,University of Moratuwa*
>>>>>>>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>>
>>>>>>>>>> On 25 March 2015 at 10:36, Lahiru Sandaruwan <lahirus@wso2.com>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> Yes, Please arrange a Google hangout if needed.
>>>>>>>>>>>
>>>>>>>>>>> Thanks.
>>>>>>>>>>>
>>>>>>>>>>> On Wed, Mar 25, 2015 at 10:35 AM, Pranavan Theivendiram
<
>>>>>>>>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Thanks Lahiru,
>>>>>>>>>>>>
>>>>>>>>>>>> I will contact you if I need any assistance.
>>>>>>>>>>>>
>>>>>>>>>>>> *T. Pranavan*
>>>>>>>>>>>> *BSc Eng Undergraduate| Department of Computer
Science &
>>>>>>>>>>>> Engineering ,University of Moratuwa*
>>>>>>>>>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt)
Ltd.*
>>>>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>>>>
>>>>>>>>>>>> On 25 March 2015 at 10:30, Lahiru Sandaruwan
<lahirus@wso2.com>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Wed, Mar 25, 2015 at 10:10 AM, Pranavan
Theivendiram <
>>>>>>>>>>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Hi Lahiru,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks for the prompt reply.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> *+1 for*
>>>>>>>>>>>>>> *we can find the polynomial in each
minute, considering 10
>>>>>>>>>>>>>> minutes of past data, we can change
this if required.*
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> If we are getting the health stats
events uniformly for every
>>>>>>>>>>>>>> 10 seconds. my question is resolved.
(I thought that we are getting in a
>>>>>>>>>>>>>> random manner).
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Can I add the things in my proposal
regarding "Curve Fitting"?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> Yes, Please.
>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Do you think that any other important
things I need to add in
>>>>>>>>>>>>>> my proposal?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> It looks good. Hope you referred [1]
on this.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>>
>>>>>>>>>>>>> [1]  http://community.apache.org/gsoc.html#applying-for-gsoc
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> *T. Pranavan*
>>>>>>>>>>>>>> *BSc Eng Undergraduate| Department
of Computer Science &
>>>>>>>>>>>>>> Engineering ,University of Moratuwa*
>>>>>>>>>>>>>> *Intern Software Engineer**| WSO2
Lanka (Pvt) Ltd.*
>>>>>>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 25 March 2015 at 10:09, Pranavan
Theivendiram <
>>>>>>>>>>>>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Hi Lahiru,
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks for the prompt reply.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> *+1 for*
>>>>>>>>>>>>>>> *we can find the polynomial in
each minute, considering 10
>>>>>>>>>>>>>>> minutes of past data, we can
change this if required.*
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> If we are getting the health
stats events uniformly for
>>>>>>>>>>>>>>> every 10 seconds. my question
is resolved. (I thought that we are getting
>>>>>>>>>>>>>>> in a random manner).
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Can I add the things in my proposal
regarding "Curve
>>>>>>>>>>>>>>> Fitting"?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Do you think that any other important
things I need to add
>>>>>>>>>>>>>>> in my proposal?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> *T. Pranavan*
>>>>>>>>>>>>>>> *BSc Eng Undergraduate| Department
of Computer Science &
>>>>>>>>>>>>>>> Engineering ,University of Moratuwa*
>>>>>>>>>>>>>>> *Intern Software Engineer**|
WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On 25 March 2015 at 09:59, Lahiru
Sandaruwan <
>>>>>>>>>>>>>>> lahirus@wso2.com> wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> +1 for using Common math
library, as we already using it.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>    - Currently we have calculating
numbers per minute, so
>>>>>>>>>>>>>>>>    it is not per specified
number of events, but for a specified time.
>>>>>>>>>>>>>>>>    - IMO we can find the
polynomial in each minute,
>>>>>>>>>>>>>>>>    considering 10 minutes
of past data, we can change this if required.
>>>>>>>>>>>>>>>>    - Normally, health stat
events are received in each 10
>>>>>>>>>>>>>>>>    seconds.
>>>>>>>>>>>>>>>>    - Therefore we will have
60 ( = 6 * 10) events per 10
>>>>>>>>>>>>>>>>    minutes.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Wed, Mar 25, 2015 at 9:11
AM, Pranavan Theivendiram <
>>>>>>>>>>>>>>>> pranavan.11@cse.mrt.ac.lk>
wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Hi Lahiru and Raj,
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> I have gone through the
curve fitting materials that you
>>>>>>>>>>>>>>>>> have provided. I have
understood the regression part and prediction of
>>>>>>>>>>>>>>>>> degree polynomials. We
can use apache common math libraries to do this. I
>>>>>>>>>>>>>>>>> have a question below.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> How often we are going
to find the polynomials?
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> For example,
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> If we have *3 samples*
events during *10 minutes interval*,
>>>>>>>>>>>>>>>>> then we can produce a
second degree polynomial. (We will get constants
>>>>>>>>>>>>>>>>> *a*,*b*, and *c*). If
we are going to use this second
>>>>>>>>>>>>>>>>> degree polynomial for
next *60 minutes *(Suppose in this
>>>>>>>>>>>>>>>>> 60 minutes we are getting
*200 samples *events).  As we
>>>>>>>>>>>>>>>>> can see our *extrapolation
>>>>>>>>>>>>>>>>> <http://en.wikipedia.org/wiki/Extrapolation>*
becomes a
>>>>>>>>>>>>>>>>> severe problem in this
particular example.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> What do you mean by " our
*extrapolation
>>>>>>>>>>>>>>>> <http://en.wikipedia.org/wiki/Extrapolation>*
becomes a
>>>>>>>>>>>>>>>> severe problem"? Complexity
of the calculation of predicted value?
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> I do not know how earlier
versions handle this scenario.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Can you tell that are
we going produce new polynomials for *a
>>>>>>>>>>>>>>>>> specified time* or *a
specified number of events*?
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Please clear this issue.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> *T. Pranavan*
>>>>>>>>>>>>>>>>> *BSc Eng Undergraduate|
Department of Computer Science &
>>>>>>>>>>>>>>>>> Engineering ,University
of Moratuwa*
>>>>>>>>>>>>>>>>> *Intern Software Engineer**|
WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On 24 March 2015 at 09:02,
Lahiru Sandaruwan <
>>>>>>>>>>>>>>>>> lahirus@wso2.com>
wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Thanks Pranavan,
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> I'll have a look.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> On Tue, Mar 24, 2015
at 8:52 AM, Pranavan Theivendiram <
>>>>>>>>>>>>>>>>>> pranavan.11@cse.mrt.ac.lk>
wrote:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Hi Lahiru and
Raj,
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> This is my draft
proposal which has been done up to 50%.
>>>>>>>>>>>>>>>>>>> I am going to
add things about curve fitting as well. Still many things
>>>>>>>>>>>>>>>>>>> need to be added.
Please comment on my initial draft.
>>>>>>>>>>>>>>>>>>> I am expecting
pros and cons regarding my proposal.
>>>>>>>>>>>>>>>>>>> Please find the
link for the initial draft below.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> https://docs.google.com/a/cse.mrt.ac.lk/document/d/1TzHYI2o9bIdZWj4qAffNmH5FTgeTOV4TuSsxlISlU8c/edit?usp=sharing
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> *T. Pranavan*
>>>>>>>>>>>>>>>>>>> *BSc Eng Undergraduate|
Department of Computer Science &
>>>>>>>>>>>>>>>>>>> Engineering ,University
of Moratuwa*
>>>>>>>>>>>>>>>>>>> *Intern Software
Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>>>>>>>>>>>> *Mobile| *0775136836
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> On 22 March 2015
at 23:36, Pranavan Theivendiram <
>>>>>>>>>>>>>>>>>>> pranavan.11@cse.mrt.ac.lk>
wrote:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> Thanks Lahiru
for the prompt reply. I have already
>>>>>>>>>>>>>>>>>>>> started working
on the proposal. I will send it before tomorrow.
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> *T. Pranavan*
>>>>>>>>>>>>>>>>>>>> *BSc Eng
Undergraduate| Department of Computer Science
>>>>>>>>>>>>>>>>>>>> & Engineering
,University of Moratuwa*
>>>>>>>>>>>>>>>>>>>> *Intern Software
Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>>>>>>>>>>>>> *Mobile|
*0775136836
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> On 22 March
2015 at 23:31, Lahiru Sandaruwan <
>>>>>>>>>>>>>>>>>>>> lahirus@wso2.com>
wrote:
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Yes,
You have found the information correctly and on
>>>>>>>>>>>>>>>>>>>>> right
track. It would be great if we can incorporate CEP 4.0.0 changes as
>>>>>>>>>>>>>>>>>>>>> it would
minimize our customized function.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> I would
like to suggest you starting the drafting of
>>>>>>>>>>>>>>>>>>>>> the proposal
as you have some background now.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> On Sun,
Mar 22, 2015 at 9:48 PM, Pranavan Theivendiram
>>>>>>>>>>>>>>>>>>>>> <pranavan.11@cse.mrt.ac.lk>
wrote:
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Hi
all,
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> With
the few days of research on the project
>>>>>>>>>>>>>>>>>>>>>> "Introducing
“curve fitting” for statistics prediction algorithm of
>>>>>>>>>>>>>>>>>>>>>> Autoscaler".
I have found
>>>>>>>>>>>>>>>>>>>>>> followings
regarding the project
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> 
  1. ClusterMonitor class passes the calculated
>>>>>>>>>>>>>>>>>>>>>> 
  values from the CEP. This value passing happens after
>>>>>>>>>>>>>>>>>>>>>> 
  org.apache.stratos.messaging.event          happens.
>>>>>>>>>>>>>>>>>>>>>> 
  2. RuleTasksDelegator class calculates the
>>>>>>>>>>>>>>>>>>>>>> 
  prediction values using the values(Ex gradient) from the CEP
>>>>>>>>>>>>>>>>>>>>>> 
  3. The classes in the package
>>>>>>>>>>>>>>>>>>>>>> 
  org.apache.stratos.cep.extension deals with the analysis of data in the
>>>>>>>>>>>>>>>>>>>>>> 
  real time and publish the relevant summarized health stats, which are
>>>>>>>>>>>>>>>>>>>>>> 
  needed for the autoscaling.
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> So
according to my understanding, I need to modify
>>>>>>>>>>>>>>>>>>>>>> above
mentioned classes, in order to implement the curve fitting for
>>>>>>>>>>>>>>>>>>>>>> statistics
prediction.
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Furthermore,for
this project, we can use the
>>>>>>>>>>>>>>>>>>>>>> regression
implementation of CEP 4.0, which is expected to be released on
>>>>>>>>>>>>>>>>>>>>>> May
15th according to WSO2 public jira. I am planning to do a feasibility
>>>>>>>>>>>>>>>>>>>>>> study
for the first two weeks of the project, where we can explore other
>>>>>>>>>>>>>>>>>>>>>> better
options as well.
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Am
I on a right track? Please share your thoughts on
>>>>>>>>>>>>>>>>>>>>>> this.
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> [1]
https://wso2.org/jira/browse/CEP
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Regards
>>>>>>>>>>>>>>>>>>>>>> *T.
Pranavan*
>>>>>>>>>>>>>>>>>>>>>> *BSc
Eng Undergraduate| Department of Computer
>>>>>>>>>>>>>>>>>>>>>> Science
& Engineering ,University of Moratuwa*
>>>>>>>>>>>>>>>>>>>>>> *Intern
Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>>>>>>>>>>>>>>>>>>>> *Mobile|
*0775136836
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>>> Lahiru
Sandaruwan
>>>>>>>>>>>>>>>>>>>>> Committer
and PMC member, Apache Stratos,
>>>>>>>>>>>>>>>>>>>>> Senior
Software Engineer,
>>>>>>>>>>>>>>>>>>>>> WSO2
Inc., http://wso2.com
>>>>>>>>>>>>>>>>>>>>> lean.enterprise.middleware
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> phone:
+94773325954
>>>>>>>>>>>>>>>>>>>>> email:
lahirus@wso2.com blog:
>>>>>>>>>>>>>>>>>>>>> http://lahiruwrites.blogspot.com/
>>>>>>>>>>>>>>>>>>>>> linked-in:
>>>>>>>>>>>>>>>>>>>>> http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> Lahiru Sandaruwan
>>>>>>>>>>>>>>>>>> Committer and PMC
member, Apache Stratos,
>>>>>>>>>>>>>>>>>> Senior Software Engineer,
>>>>>>>>>>>>>>>>>> WSO2 Inc., http://wso2.com
>>>>>>>>>>>>>>>>>> lean.enterprise.middleware
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> phone: +94773325954
>>>>>>>>>>>>>>>>>> email: lahirus@wso2.com
blog:
>>>>>>>>>>>>>>>>>> http://lahiruwrites.blogspot.com/
>>>>>>>>>>>>>>>>>> linked-in:
>>>>>>>>>>>>>>>>>> http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> Lahiru Sandaruwan
>>>>>>>>>>>>>>>> Committer and PMC member,
Apache Stratos,
>>>>>>>>>>>>>>>> Senior Software Engineer,
>>>>>>>>>>>>>>>> WSO2 Inc., http://wso2.com
>>>>>>>>>>>>>>>> lean.enterprise.middleware
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> phone: +94773325954
>>>>>>>>>>>>>>>> email: lahirus@wso2.com blog:
>>>>>>>>>>>>>>>> http://lahiruwrites.blogspot.com/
>>>>>>>>>>>>>>>> linked-in:
>>>>>>>>>>>>>>>> http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> --
>>>>>>>>>>>>> Lahiru Sandaruwan
>>>>>>>>>>>>> Committer and PMC member, Apache Stratos,
>>>>>>>>>>>>> Senior Software Engineer,
>>>>>>>>>>>>> WSO2 Inc., http://wso2.com
>>>>>>>>>>>>> lean.enterprise.middleware
>>>>>>>>>>>>>
>>>>>>>>>>>>> phone: +94773325954
>>>>>>>>>>>>> email: lahirus@wso2.com blog:
>>>>>>>>>>>>> http://lahiruwrites.blogspot.com/
>>>>>>>>>>>>> linked-in:
>>>>>>>>>>>>> http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> --
>>>>>>>>>>> Lahiru Sandaruwan
>>>>>>>>>>> Committer and PMC member, Apache Stratos,
>>>>>>>>>>> Senior Software Engineer,
>>>>>>>>>>> WSO2 Inc., http://wso2.com
>>>>>>>>>>> lean.enterprise.middleware
>>>>>>>>>>>
>>>>>>>>>>> phone: +94773325954
>>>>>>>>>>> email: lahirus@wso2.com blog: http://lahiruwrites.blogspot.com/
>>>>>>>>>>> linked-in:
>>>>>>>>>>> http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> --
>>>>>>>> Lahiru Sandaruwan
>>>>>>>> Committer and PMC member, Apache Stratos,
>>>>>>>> Senior Software Engineer,
>>>>>>>> WSO2 Inc., http://wso2.com
>>>>>>>> lean.enterprise.middleware
>>>>>>>>
>>>>>>>> phone: +94773325954
>>>>>>>> email: lahirus@wso2.com blog: http://lahiruwrites.blogspot.com/
>>>>>>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> --
>>>>>> Lahiru Sandaruwan
>>>>>> Committer and PMC member, Apache Stratos,
>>>>>> Senior Software Engineer,
>>>>>> WSO2 Inc., http://wso2.com
>>>>>> lean.enterprise.middleware
>>>>>>
>>>>>> phone: +94773325954
>>>>>> email: lahirus@wso2.com blog: http://lahiruwrites.blogspot.com/
>>>>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> --
>>> Lahiru Sandaruwan
>>> Committer and PMC member, Apache Stratos,
>>> Senior Software Engineer,
>>> WSO2 Inc., http://wso2.com
>>> lean.enterprise.middleware
>>>
>>> phone: +94773325954
>>> email: lahirus@wso2.com blog: http://lahiruwrites.blogspot.com/
>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>
>>>
>>
>


-- 
--
Lahiru Sandaruwan
Committer and PMC member, Apache Stratos,
Senior Software Engineer,
WSO2 Inc., http://wso2.com
lean.enterprise.middleware

phone: +94773325954
email: lahirus@wso2.com blog: http://lahiruwrites.blogspot.com/
linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146

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