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OOTI Talks

OOTI Talks. 16-11-2006. To the presenters. Opinion? Comfortable? Achieved what you wanted?. Questions. What is a grid? and how do I use it? Does the distinction between grid types lead to different technology/solutions? Grid-Web service relation grid tech. is a collection of WS?

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OOTI Talks

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  1. OOTI Talks 16-11-2006 Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  2. To the presenters • Opinion? • Comfortable? • Achieved what you wanted? Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  3. Questions • What is a grid? and how do I use it? • Does the distinction between grid types lead to different technology/solutions? • Grid-Web service relation • grid tech. is a collection of WS? • (note: SOAP is an encoding of RMIs – ‘machine independent’) • What is the difference between distributed and parallel computing • What is the relation between the requirements and the pictures shown • how does a user access a grid? Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  4. Questions • The four functions • what is the relevance? • do they make up the data-grid? • are these API-calls / models at a concrete service? • does the taxonomy represent design/configuration choices? what is the relation with the grid? • who implements this? it seems that it covers just about anything in distributed systems [in these domains] • is it worth-while (for your message....) to go through all the alternatives in the taxonomies? Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  5. Advice • Repeat, where you are in the presentation • overview • Focus on the message • I learned: your message is • the high expectations / goals • it’s complicated • Get away from vagueness, go to concreteness • examples • one particular aspect, problem • What about the audience? Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  6. Comment • There is a high ‘holy grail’ aspect to grid • Do you have questions or doubts yourself? • do you believe what you read & tell? Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  7. Questions • Why do you want this distinction – processes & coordination? • what does it mean anyway? • Which things can you do now that you could not do before? • or more efficiently? • Is this related to grid? • General CS question: why are we dreaming up all these concepts anyway? Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  8. Questions • I think: Sun advertised Jini for this purpose after they invented it for another purpose • Still- what is Jini? How to use it and what for? • Is there a transaction concept in the lookup? • lookup & get perhaps • Is the claim that • The javaspaces story – what’s the relation with Jini • it’s just for the registration and lookup • perhaps for eventing Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  9. Advice • Show the use / alternatives using an example • Pay attention to a problem – solution relationship • particularly, when you –seem to– explain how something works • e.g.fault tolerance • In the end, what can I do with it? which problems can be solved better? • System diagram, with all actors, a typical interaction seqeunce Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

  10. Comments • I don’t find the audience very critical • Both presentations referred to the concepts, and how they play a role • good • note that indeed most systems have paid attention to it • however, it really starts to become interesting once you understand the scope of the corresponding problem Johan J. Lukkien, j.j.lukkien@tue.nl TU/e Informatica, System Architecture and Networking

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