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From Suresh Marru <sma...@apache.org>
Subject Re: Proposal To Use Apache OODT products as input to Apache Airavata Workflows and staging product files into node where execution happens
Date Mon, 18 Feb 2013 01:05:54 GMT
Hi Sanjaya,

This sounds very exciting. Both Airavata and OODT projects have good synergies and have been
long looking for volunteers who can bridge them both. Please do not hesitate to ask any questions
to either or both the dev lists. The more engaged you are, you will find use cases and feedback
which should help your MSc project. 

Your plan sounds good. If you are following dev list, you may have noticed, the GFac architecture
has been improved to properly support this kind of handler architecture. 

You may also want to look at Airavata Registry API which has organically emerged with the
need, but can greatly benefit for OODT's provenance capabilities. 

Suresh

On Feb 17, 2013, at 1:25 PM, "Mattmann, Chris A (388J)" <chris.a.mattmann@jpl.nasa.gov>
wrote:

> +1, sounds like a great idea Sanjaya!
> 
> I'm copying dev@oodt so they can be in the conversation too.
> 
> Cheers,
> Chris
> 
> On 2/17/13 10:22 AM, "Sanjaya Medonsa" <sanjayamrt@gmail.com> wrote:
> 
>> Hi Dev Team,
>> As I have posted previously, I am working on a Apache Airavata + Apache
>> OODT integration as my MSc project. Following is one of the possible
>> integration to leverage Apache OODT file management capability into Apache
>> Airavata. Please review the proposal and let me know your feedback.
>> 
>> Proposal To Use Apache OODT products as input to Apache Airavata Workflows
>> and staging product files into node where execution happens
>> ==========================================================================
>> ==============================
>> 1. Introduce "Apache OODT Product" as a new GFacParameterType. New "Apache
>> OODT Product" input type can sepcify "Product ID" or "File Path to
>> Product"
>> as an input to Apache Airavata workflows.
>> 2. Introduce new PreExecuteChain to retrieve Apache OODT Products from
>> File
>> Manager Server managed using Apache OODT.
>> 1. Using Apache OODT File Manager componenet transfer Product from Server
>> to input directory of the application as configured using XBaya-GUI under
>> advanced configuration. (Here the assumption is that Products are
>> accesible
>> through Apache OODT File Manager server)
>> 2. Finally reset the input value to local file path. I think we can remove
>> the OODT Product parameter from invocation context and add new file
>> parameter with value set to 'local path of the transferred product'. I am
>> not quite sure what are the implications of changing input parameter type
>> during the execution.
>> 
>> Similar approach has been implemented for GridFTP and HTTP.
>> 
>> Best Regards,
>> Sanjaya
> 


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