cloud computing: highlights
TRANSCRIPT
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Outlines
Cloud computing: natural evolution Stack Deployment models
Services Blobstore/Datastore Databases Notification Systems
Frameworks Google AppEngine PubNub Jclouds AWS
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Overview
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Computing paradigm
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Computing paradigm
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Cloud computing: definition
“Cloud computing has the potential to create irreversible changes in how computers are used around the world”
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Cloud computing: definition
“Cloud computing technology’s objective is to move any application stored on a computer to a remote location, eliminating all the standard components, including operating systems and hard drives, which are necessary in today’s computers and make them accessible online through a standard browser.”
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Clod computing: definition
Resources as a Commodity
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Anywhere and anytime
http://cloudcomputingcompaniesnow.com/
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1) No capital expenditures
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2) Pay only what you need
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3) Elastic capacity
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4) Focus on development
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5) No need to maintain infrastructure
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6) Redundancy
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7) Design for failure
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Deployment models
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Increase efficiently
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Increase efficiently
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Increase efficiently
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Increase efficiently
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Increase efficiently
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Cloud computing providers
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So..? Leave it to the experts.
… who have a lot of money to spend to build large datacenters in different locations of the globe.
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Benefits/Challenges
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Reduce IT infrastructure on the organizations side
Reduce the maintenance of datacenter
Reduce the costs
Energy, air condition
Licenses
Access applications and data “anytime, anywhere”
x Ensure privacy and confidentiality
x Interoperability with existents protocols
x Portability
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Services
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What fits in the cloud services?
Elastic capacity: applications to scale
SOA applications: all of them use mainly web services to communicate
Access anytime and anywhere
High parallelized workflows
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Cloud computing stack
Software as a service(Finished application: for sales and it
customizable)
Plataform as a service(Developer plataform that abstracts the
infrastructure OS)
Infrastructure as a service(Abstract real infrastructure)
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Infrastructure-as-a-Service
Adding “servers” in a click
Run it in just a few minutes, not days
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Infrastructure-as-a-Service
Create Virtual Machines on demand
Snapshots
Start/Stop machines
Automatically scale
Pay only the resources that the machine are using
There is an API, you can management the infrastructure programming or invoking web services
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Infrastructure-as-a-Service - Hybrid
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High Level: Platform-as-a-Service
Platform-as-a-Service (PaaS) Storage-as-a-Service Database-as-a-Service Notification-as-a-Service
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Storage-as-a-Service
Blobstore: upload blobs/data objects to the cloud
Based on Key, Value concept
Each blobstore can contain several containers/buckets.
They have a Key and the value is a binary blob. The developer can store information
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Storage-as-a-Service
Providers: Dropbox API S3 Google Storage Azure Storage Box.net Rackspace Store
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Databases – Columnar Data
Flexible and mutable tables
Key/Value structure
Providers: Datastore Google AppEngine Azure Table SimpleDB – AWS
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Notification systems
Asynchronous message queue
HTTP protocol
Publish/Subscribe pattern
Examples: Channel API PubNub
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Frameworks/SDKs
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Google AppEngine: What is it?
Platform-as-a-Service
Languages: Java and Python
Create Web Applications
Free (to start with)
www.appspot.com
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Google AppEngine: services
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Google AppEngine: Dashboard
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Google AppEngine: Dashboard
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Google AppEngine: Datastore
“Bigtable is a distributed storage system for managing structured data that is designed to scale to a very large size: petabytes of data across thousands of commodity servers. Many projects at Google store data in Bigtable, including web indexing, Google Earth, and Google Finance”
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Requires a new way of thinking
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Google AppEngine: Channel API
Channel API: notification and collaborative environment
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PubNub
Free service to do notification in real time
Accessible via Web Services
Easy to use for collaborative systems
Check it out: http://www.pubnub.com/console
Free alternatives to deploy locally: http://www.ape-project.org/ XMPP/Smack
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PubNub
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Multi cloud frameworks
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Jclouds: Multi cloud library
Services: Computing Service Blobstore service
Language: Java
Supports several cloud providers for Computing Utility and Storage
Jclouds.org/github
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Jclouds - blobstore
BlobStoreContext context = new BlobStoreContextFactory().createContext("aws-s3", identity, credential);
BlobMap map = context.createBlobMap(”food");
Blob blob = map.blobBuilder("sushi.jpg")
.payload(new File("sushi.jpg"))// or byte[]. InputStream, etc.
.contentDisposition("attachment; filename=sushi.jpg")
.contentType("image/jpeg")
.calculateMD5().build();
map.put(blob.getName(), blob);
context.close();
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Other services
Computing services: launch machines on demand. Allocate processing and memory Grow dynamically Pay what you use
Networking
Payments
Workflow
… and many others.
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What to do next?
Keywords: Google AppEngine, AWS S3, Dropbox API, Cloud API
Google AppEngine – SDK (PaaS)
Dropbox API – Storage
Google API – Services
Install your own services (testing)
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References
http://blog.zenoss.com/2011/08/top-10-presentations-on-cloud-computing/
http://www.slideshare.net/jaapgorjup/cloud-computing-intro-slides
http://www.slideshare.net/simon/ive-probably-been-using-google-app-engine-for-a-week-longer-than-you-have
http://www.appspot.com
http://www.pubnub.com
http://aws.amazon.com