1. Software ArchitectureIN
Cloud
A Survey by Yang Yang

2. Introduction Cloud Computing Device Abstraction Software Architecture
An Brief Introduction to Cloud Computing and Software Architecture
Cloud Computing
Device Abstraction
Software Architecture

3. Cloud Computing Name Description Main Frame Powerful, integrated, big
Grid
Large scale computing services, typically heterogeneous, distributed, and parallel
Cloud
All types of rapidly provisioned, on-demand computing or application services.
2) Any service delivered across the Internet, without requiring hardware or software installation.
3) Service customize & renting
Utility
The “pay for what you use” billing method. May or may
not be “cloudlike” in other ways.
IaaS
Virtualized server and network hardware, provisioned by customer control via portal or API.
SaaS
Execution environment with software abstractions over the
capabilities and operational management of the underlying
infrastructure.
PaaS
Application features provided without hardware or software
installation. May or may not execute on any of the above
environments.

4. Device Abstraction Device Abstraction Device Distributed
Task/Thread Distributed
Virtualization
Allow any OS to run
Infrastructure As Service
Uniform API

5. Software Architecture
The software architecture of a program or computing system is the structure or structures of the system, which comprise software components, the externally visible properties of those components, and the relationships between them. -Wikipedia

6. Software Architecture in Cloud
Discuss Architectures in Cloud
An Easiest One
Properties
Amazon’s EC2 + S3
The Master/Worker Pattern
Hadoop / Google’s

7. The environment is Compatible
An Easiest One
Do Nothing!
The environment is Compatible

8. Property Advantages to Gain Risks to Mitigate Scalability Availability
Bundling
Geography
Ephemerality

9. EC2 ES3 @ Amazon Cluster on Farm && Server in Image Advantages
• Run as many servers as you want
• Pennies per hour
• Virtual server images stored in S3
• Control via web services API
Quirks
• “Clean boot” is really clean
• Local storage not persistent
• IP addresses assigned randomly
Bundling Deployment
by Virtual Machine

10. The Master/Worker Pattern
M/W Pattern
Master
Task Distributing
Database Administration
Worker
Computing
Result Feed Back
M/W Pattern Aplications
New York Times - converted 11 million articles from their archive
Video transcoding/processing - Animoto.com
From 50 to 5,000 processing nodes in 1 week
Then back down to “a few hundred”

11. Hadoop Hadoop Core Distributed File System Map Reduce Operation
Hadoop Base
Highly Scalability
HDFS
Map-Reduce
Hadoop

12. Distributed File System
Google File System
Single Master
Multiple Chunk Server

13. Map Reduce (cont.)