Amazon Cloud Services

Amazon Cloud Services Kalpak Shah Clogeny Technologies Pvt. Ltd. [email_address] The forecast is ..... cloudy Clogeny Technologies Pvt. Ltd.

What is cloud computing?
Next generation of computing after Mainframe, Personal computers, Client-Server and the Web
New platform and delivery model providing dynamically scalable and often virtualized resources
1000 servers for 1 hour = 1 server for 1000 hours!
Accessibility – Connectivity – Viability
Beware of cloud imposters!
Online != Cloud
Clogeny Technologies Pvt. Ltd.

Cloud Stack
Infrastructure as a Service (IaaS)
Amazon EC2, Rackspace CloudServers
Platform as a Service (PaaS)
Google AppEngine, Heroku
Software as a Service (SaaS)
SalesForce.com, ZOHO

Cloud Economics
Economies of scale
5-7 times decrease in cost as compared to data centers
Pay as you go
1 hour of Amazon EC2 can cost as less as 8.5 cents or 4 rupees!
No CAPEX, only OPEX
Practically infinite scalability – go from 1 machine to 1000 in an hour!
That is fast provisioning!
Start-ups can focus on core proposition than infrastructure.
Departments in enterprises need not wait for budget approvals

AWS Services Clogeny Technologies Pvt. Ltd.

About all services - 1
Amazon’s web services scale as and when needed
Completely pay as you go
SOAP and REST interfaces will be available
All features have a comprehensive web services API
Libraries for popular languages like Java, .Net, Perl, RoR are available
Pricing is complicated & the pricing calculator more so!
For example, $0.10 per 1 million IO requests
Amazon cloud is available at 3 different regions
2 in US and 1 in Europe
Regions are priced differently depending on scale, local taxes and other factors

About all services - 2
Backed by a decently good SLA(Service Level Agreement) of around 99.9% uptime.
And most importantly:
All data transfer in and out of Amazon cloud is charged
Around $0.15/GB, though in-coming data is free until June
As volume increases price decreases starting from about 50TB
Data transfer across availability zones is charged

Elastic Compute Cloud
Resizable compute capacity – boot servers in minutes for scaling your applications/portals
You can choose compute units(cores) and memory as per your needs
Pricing starts from $0.085 per hour
Variety of OS’s are available – Linux, Windows, OpenSolaris
OEMs provide bundled Amazon Machine Instances (AMI)
Pre-packaged applications like Oracle, SQL, media servers available to choose from
Licensing becomes pay as you go as well!
Attached storage is not persistent!
A running server can be “bundled” and converted into an AMI for later use.
Thousands of free and paid AMIs available with various softwares and stacks

Simple Storage Service (S3)
Storage for the internet – HTTP scalable storage
Safe storage – 3 copies, offsite backup as well
Each file can be accessed as a URL
http://<bucket>.s3.amazonaws.com/<object>
Can be easily embedded into web pages for delivery through S3
Read, write and delete objects upto 5GB
Modification not allowed
Not like your filesystem
Folder => bucket
File => Object
No block based access
BitTorrent protocol interface available for high-scale distribution
Transfer between regions is also charged
AWS Import/Export can be used for large datasets

Elastic Block Storage(EBS)
EBS are the block storage volumes providing persistent storage.
Format and use like filesystems/drives
From 1GB upto 1TB
EBS volume can be “attached” to any running instance in same region
Move disks between instances as needed
Snapshots of EBS volumes can be taken for incremental backups
New volumes can be created from snapshots
Snapshots can be shared with other users!
Volumes can fail!
Annual failure rate of 0.1%-0.5% (still lesser than drives we use)
Snapshot/backup to avoid data loss

Cloud Databases - SimpleDB
Database as a cloud web service
Data indexing and querying
No need to configure normal relational databases and scale it
Not your traditional relational database
Pricing
SimpleDB measures the machine utilization and charges $0.14 per Machine Hour used by the requests(SELECT, GET, PUT, etc.)
Alexa stores about 12 million objects in SimpleDB and performs 5 million queries daily

Cloud Databases - RDS
Relational Database Service (RDS)
Easily setup, scale and operate a relational database with familiar MySQL capabilities
Whatever code is used today with MySQL will work with RDS
Automatic database backups
Its charged though.
Pricing is per database instance hour depending on how large the instance is.
Utilities like “mysqldump” and “mysqlimport” help easy porting of existing MySQL databases into RDS

Content Distribution (CloudFront)
Delivers your static and streaming content from global network of edge locations.
Improves performance and reduces load on web servers
Integrated with S3
Distribute files from S3 as and when needed
Pricing depends on edge location (US, Europe, Hong Kong, Japan)
Private content feature so that your data is not publicly accessible
Real Time Messaging Protocol used for streaming distributions unlike HTTP which is used for other normal distributions

Amazon CloudWatch
Monitoring tool for AWS services
Resource utilization
Demand patterns
CPU, disk, network statistics
You can select the instances you want to watch
Monitors Elastic Load Balancers for request count and request efficiency

Elastic Load Balancing & Auto Scaling
Load balancing automatically distributes incoming application traffic across multiple EC2 instances
Detects health of EC2 instances and moves requests to healthy instances on the fly
Fault tolerance for your applications
Auto Scaling allows you to automatically scale your EC2 instances up or down as per conditions you set.
Good for applications that have lot of load variations
Seamless scaling up during spikes and scaling down during low loads
This feature is available through CloudWatch

Other features
Spot Instances
Trade and bid for computing
Instances are allocated only if price drops to your bid
Use cheap compute power during holidays
Virtual Private Cloud
Enterprise level security with VPN
MapReduce (Hadoop based framework)
Distributed processing engine
Processing vast amounts of data
Indexing, mining, financial analysis, simulations

Case Studies
SmugMug – Online photo sharing company has millions of photos on Amazon S3.
Linden Lab, the maker of Second Life uses Amazon to deliver and store content.
“ Ghost” – which provides web based OS is using Amazon for all its needs.
Xignite uses cloud to deliver analytics for financial markets for clients like Citi, Forbes and StarBucks.
Many companies are using EC2+ Solr+MapReduce for mining data.

Tools
EC2 command-line options
ec2-describe-instances
Ec2-bundle-vol
Amazon AWS Dashboard
Manage your instances, IPs, keypairs and more
ElasticFox
Firefox plugin with better UI than Amazon dashboard
Can help manage most of your cloud services
S3Fox
Manage S3 storage. Upload/download, edit ACLs, get URL
Lets see a demo of these tools...
RightScale
Proprietory
Deploy and manage business critical applications on the cloud
More automation and proffessional features

Conclusion
There are other clouds as well
Rackspace
Terremark
GoGrid
No complains about lack of compute power
So many choices!
Alexa, SearchBlox web search software available on the cloud
Amazon S3 can be your unlimited online hard drive
Media streaming available as a service
Make your scalable cloud hosted application for fun!

Questions Clogeny Technologies Pvt. Ltd.

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Amazon Cloud Services

by Clogeny Technologies on Mar 15, 2010

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