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From Imesh Gunaratne <im...@apache.org>
Subject Re: [GSOC - 2015] Introducing “curve fitting” for statistics prediction algorithm of Autoscaler
Date Wed, 23 Sep 2015 05:55:44 GMT
Do we have a document explaining the concepts of $subject?

Thanks

On Fri, Mar 27, 2015 at 2:08 PM, Lahiru Sandaruwan <lahirus@wso2.com> wrote:

> Yes, I can see the proposal.
>
> Thanks.
>
> On Fri, Mar 27, 2015 at 1:58 PM, Pranavan Theivendiram <
> pranavan.11@cse.mrt.ac.lk> wrote:
>
>> Hi Lahiru,
>>
>> Now it looks like ok. Please check.
>>
>>
>> http://www.google-melange.com/gsoc/proposal/public/google/gsoc2015/pranavan_theivendiram/5629499534213120
>>
>> *T. Pranavan*
>> *BSc Eng Undergraduate| Department of Computer Science & Engineering
>> ,University of Moratuwa*
>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>> *Mobile| *0775136836
>>
>> On 27 March 2015 at 13:55, Pranavan Theivendiram <
>> pranavan.11@cse.mrt.ac.lk> wrote:
>>
>>> Hi Lahiru,
>>>
>>> I made the proposal public to everyone. But I think the proposal is
>>> still not accessible. I do not figure what is the reason. :(
>>>
>>> *T. Pranavan*
>>> *BSc Eng Undergraduate| Department of Computer Science & Engineering
>>> ,University of Moratuwa*
>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>> *Mobile| *0775136836
>>>
>>> On 27 March 2015 at 13:51, Pranavan Theivendiram <
>>> pranavan.11@cse.mrt.ac.lk> wrote:
>>>
>>>> Hi Lahiru,
>>>>
>>>> Thanks for the issue. I have shared the proposal with organization
>>>> members. Ok I will make it public now.
>>>>
>>>> *T. Pranavan*
>>>> *BSc Eng Undergraduate| Department of Computer Science & Engineering
>>>> ,University of Moratuwa*
>>>> *Intern Software Engineer**| WSO2 Lanka (Pvt) Ltd.*
>>>> *Mobile| *0775136836
>>>>
>>>> On 27 March 2015 at 13:47, Lahiru Sandaruwan <lahirus@wso2.com> wrote:
>>>>
>>>>> I think the general URL should be,
>>>>>
>>>>>
>>>>> https://www.google-melange.com/gsoc/proposal/review/org/google/gsoc2015/pranavan_theivendiram/5629499534213120
>>>>>
>>>>> On Fri, Mar 27, 2015 at 1:46 PM, Lahiru Sandaruwan <lahirus@wso2.com>
>>>>> wrote:
>>>>>
>>>>>> 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
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> --
>>>>> 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
>
>


-- 
Imesh Gunaratne

Senior Technical Lead, WSO2
Committer & PMC Member, Apache Stratos

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