Lessons Learned: Migrating Applications to the Windows Azure PlatformWade WegnerSenior ArchitectMicrosoft Corporation

SVC30

Agenda> Lessons learned from real solutions> Four different scenarios

> Internal line-of-business application> Autonomous services> E-commerce website> Video transcoding service

> Q&A

Speakers> Joseph Paradi

> Accenture> Gurleen Randhawa

> CCH, a Wolters Kluwer business> David Haubenstricker

> Domino’s Pizza> Mark Richards

> OriginDigital

Real World Azure

Joseph ParadiInnovation Lead for Internal ITAccenture

accenture

Corporate Concerns> “The Pillars of Concern”

> Authentication> Authorization> Data Synchronization> Security of Data> Application Integration> Operations / Management

> Minimize the cost/effort to move to Azure

“Before” Infrastructure

User

Web App Database

ADWeb App 2

Web AppWindows

AzureDatabaseSQL Azure

“After” Infrastructure

User

DatabaseWeb App 2

ADADFS Server

What did we find?> Authentication – ADFS server against corporate AD in

our DC> Authorization – ADFS custom claim to make the

authorization decision> Data Sync – SSIS to push subset of rows and columns

to SQL Azure> Security/Audit – specific to each organization and

industry for data and operations> Application Integration – use of ADFS Passive Fed

allowed Web SSO model between apps in different locations

> Operations/Management – cannot use Windows Event Log and SCOM

> Cost – very little code change to existing application; quick time to deliver

Why is this cool?> You already have the skills you need

(Visual Studio, SSIS)> No infrastructure required! (assuming

you already have ADFS)> Don’t worry about the plumbing, just

build the application> Microsoft is providing the tooling and

guidance to reduce the barrier to leveraging Azure

SALES TAX ENGINE

Gurleen RandhawaDevelopment ManagerCCH, a Wolters Kluwer business

CCH

Application Overview> Sales Tax Office

> Real-time sales tax calculation> Multiple business entities, multiple ERP

modules or even different ERP systems> Sales Tax Office works behind the

scenes with minimal user interaction

Original Architecture

Web Client Web Server

Admin Client App Server

RDB

Cloud Architecture

Web Client Admin Client

Web Services

RDB

App Server

Challenges> Plex (3rd party libraries)> State management> Performance> Security> Database migration> Database partitioning

Lessons Learned> Be prepared to sacrifice hardware and software control

in exchange for lower maintenance costs.> Log, log and log. Verbose logging will make application

troubleshooting easier.> Design your systems for scaling out, not up. If dealing

w/ an existing system some code refactoring may be necessary.

> Use database partitioning techniques (the database also has to scale out due to the 10 GB limitation on the db size).

> Plan your data migration.> Store sensitive customer data on premises.> Use proper State management techniques - think

“Stateless”.

Pizza Delivery Platform

David HaubenstrickerEnterprise ArchitectDomino’s Pizza

Domino's Pizza

The Problem

Current Architecture

Web SOA StoresStoresStores

RDB

VPNWeb SOA

Java / Tomcat Solaris

Oracle

VB6/C#Win2000/20

03

Cisco

Web SOA StoresStoresStores

RDB

VPNWeb SOAWeb SOA StoresStoresStores

RDB

VPNWeb SOA

Co-Deployed Architecture

Web SOAWeb SOA StoresStoresStores

RDB

VPNWeb SOAWeb SOA

Azure Runs Java

Web SOA StoresStoresStores

RDB

VPNWeb SOA

Web SOAWeb SOA

Migrate (Relatively)

Easily

Web SOA StoresStoresStores

RDB

VPNWeb SOA

Connection Issues

Web SOA StoresStoresStores

RDB

VPNWeb SOA

Svc Bus

No Hardware Allowed

Svc Bus

Web SOA StoresStoresStores

RDB

Web SOA

Data Issues

Web SOA StoresStoresStores

RDB

VPNWeb SOA

Svc Bus

Hot SpotSharding?

Key-Value

Storage

AzureStorageAzure

Storage

Key-Value

Storage

Key-Value

Storage

AzureStorage

Web SOA StoresStoresStoresWeb SOA

Pain in the Cloud

Web SOA StoresStoresStoresVPNWeb SOA

Svc Bus

Connectivity

DifferencesStorage

DifferencesLogging

Differences

Solution: Abstraction Layer

Application

Abstraction Layer

Azure Technology

Domino’sTechnology

Domino’sTechnology

Domino’sTechnology

Take aways> Java runs in Azure> Service Bus provides VPN like

connectivity> Azure storage technologies are easily

abstracted

Mark RichardsVP, Business DevelopmentOrigin Digital

Origin Digital

Overview> Application Overview

> Build a video and audio transcoding solution based on the Windows Azure cloud computing platform

> Key Business Goals> Decrease transcoding costs> Provide greater scalability> Greater Geographic distribution

> Platform Adoption Driver> The key factor driving Azure adoption is to be

able to cost effectively respond to changing customer demands and volumes

Odaptor Overview

XYZ CorporationFile Upload

UGC, Corporate content, etc…

Odaptor File UploadHTTP Post,

iFrame, Silverlight,

FlashOdaptor

CMS

Video/Audio

Transcoding

CDNAkamai,

Limelight, Azure etc..

Postback with Asset Information

Source Media File

Transcoded Files

Solution ArchitectureManager Worker Role

Blob

Queue

Web RoleFile Uploads

Transcoding Worker Role

CDN’s

Challenges> Finding and implementing a

inexpensive and reliable software based encoding, and implementing it in the cloud

> Determining an algorithm for auto scaling

> Working with pre-release SDKs, as they tend to change

> Deployment and release process

Benefits> Significant cost savings versus existing

transcoding hardware and software> Ability to quickly and cheaply respond to

varying demand levels> Ability to easily provide geographically

relevant solutions to our customers

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