This document discusses cloud computing and provides definitions and examples. It defines cloud computing as networked computers accessed via the internet and describes it as a shift towards online services. Examples are given of software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS). Opportunities for using cloud computing for research and scalable business applications are presented.

1. Cloud
Computing
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Andrei Dragomir
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

2. Continut
 Introducere
 O scurta explicatie despre cloud computing
 De nitia mea
 Cateva exemple
 Despre “consumatori”
 Despre “producatori”
 Oportunitati pentru voi
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

3. Introducere
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

4. Introducere
 Eu
 Inginer so ware
 ~ 6 ani in domeniu
 proiect care implica cloud computing si sisteme distribuite in cadrul ADRO
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

5. Introducere
 Eu
 Inginer so ware
 ~ 6 ani in domeniu
 proiect care implica cloud computing si sisteme distribuite in cadrul ADRO
 VOI ?
 Facultate ?
 Proiecte extrascolare ? (OSS / job)
®
Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

6. Introducere
 Eu
 Inginer so ware
 ~ 6 ani in domeniu
 proiect care implica cloud computing si sisteme distribuite in cadrul ADRO
 VOI ?
 Facultate ?
 Proiecte extrascolare ? (OSS / job)
®
Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

7. Introducere / cloud computing
 Ce este cloud computing ?
 “Calculatoare legate la internet”
 Tehnologist: “Disruptive shi of the computing stack towards online services”
 Inginer IT: “SaaS, PaaS, IaaS, hybrid clouds”
 CEO: “Cloud computing = produsul nostru”
 Google: ~50 de nitii
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

8. Introducere / o de nitie vizuala
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

9. Confuz ?
http://www.flickr.com/photos/kernelslacker/2041741181
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

10. Introducere / partile componente
 Concept inventat in anii ’60
 John McCarthy “utility computing”
 Potrivire cu lumea de astazi
 Tehnologia informatiei in companii se transforma dintr-un avantaj strategic
intr-un simplu cost
 Tehnologie
 Nimic nou, concepte precum virtualizare
 Schimbare de atitudine
 Companiile sunt dispuse sa plateasca pentru servicii, nu pentru produse.
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

11. Introducere / mersul statistic al unei tehnologii
Comoditizare
Servicii
Raspandire
Inovatie
Siguranta
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

12. O alta de nitie
 Cloud computing nu este un lucru, ci descrie seria de transformari
in I.T. catre o economie bazata pe servicii, transformari conduse
de o serie de schimbari culturale, economice si tehnologice.
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

13. Cateva exemple
 Servicii
 Identitate: OpenID, OAuth
 Plati: Google checkout, PayPal
 Platforma
 Aplicatii complete: Google App Engine, Heroku, Rackspace cloud sites
 Baza de date: Amazon SimpleDB, GAE Datastore
 Infrastructura (servere)
 Amazon EC2 - virtualizare
 Amazon S3, Amazon EBS - sistem de siere
 Xen, Eucalyptus, Ubuntu Enterprise Cloud
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

14. Exemple / Google App Engine
 Serviciu “aproape” gratis, lansat de Google in 2008
 Permite scrierea de aplicatii web in Python / Java
 Se poate folosi autenti care, baza de date, email, etc
 Editare si deploy foarte simplu: self-service complet, fara emailuri
 O aplicatie se creeaza cam in 5 minute.
 h p://saluthowtoweb.appspot.com
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

15. Probleme etice
 Cine controleaza tehnologia ?
 Cine poate trage la raspundere o companie care ofera aceste
servicii ?
 Transparenta la: standarde de securitate, backup, plata, metrici
 Standardele care apar nu trebuie sa e in mana unui producator
 Open source (produse) > open cloud (servicii)
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

16. Ce inseamna pentru voi ?
 Oportunitati de afaceri
 Se pot aborda proiecte de o complexitate algoritmica mult mai mare
 Procesare enorma de date poate facuta acum cu investitii foarte mici
 Exista companii care isi fac business-ul pe internet fara infrastructura zica
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

17. Ce inseamna pentru voi ?
 Oportunitati de cercetare
 Multi-threaded ? Multi-core ? Multi-calculator ?
 Scalabilitate orizontala, sisteme distribuite, paralelizarea
algoritmilor, concurenta
 Proiecte opensource: Xen, Hadoop, HBase, Zookeeper
 Infrastructura “free” pentru studenti
 h p://planet-lab.org,
 h p://opencirrus.org
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

18. Exemplu: FlightCaster
 Prezice intarzierile zborurilor
 Infrastructura
 Frontend
 Scrisa in Ruby on Rails, cu hosting pe Heroku (virtualizata)
 Backend
 Foloseste intre 10 si 100 instance EC2 (virtualizata)
 Hadoop pentru frameworkul de procesare distribuita
 Clojure - un limbaj functional pentru algoritmii de procesare
 Ruleaza complet fara infrastructura zica
 h p:// ightcaster.com
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009

19. Resurse, link-uri
 h p://heroku.com
 h p://aws.amazon.com

 h p://hadoop.apache.org
 h p://en.wikipedia.org/wiki/
Cloud_computing
 h p://www.ubuntu.com/products/
whatisubuntu/serveredition/cloud/UEC
 h p://cloud-standards.org/
 h p://www.planet-lab.org
 h p://opencirrus.org/
 h p://code.google.com/appengine/
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Copyright 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe Confidential.
Saturday, October 31, 2009