migrating saas applications to windows azure - … saas applications to ... deepthi recently led the...

Copyright © 2012 Smartbridge LLC. All rights reserved.

Migrating SaaS Applications to Windows Azure

Lessons Learned

04.04.2012

Copyright © 2012 Smartbridge LLC. All rights reserved. 2

Speaker Introduction

Deepthi Raju Marketing Technology Services Deepthi joined Smartbridge in 2005 and has over twenty years of technology consulting experience in energy and retail industries. Deepthi currently leads the product development of SmartMPM which is a state-of-the-art marketing performance measurement tool used by marketers across variety of industries. Deepthi recently led the migration of Smartbridge products from private cloud to public hosted cloud environments and is an expert in technology architectures developed for cloud applications. Prior to Smartbridge, Deepthi was an architect and senior developer at Schlumberger responsible for the development of drilling log analysis technologies.


What we are here to talk about?


Outline

1. What are the market trends?

2. Cloud characteristics and options

3. SmartMPM, a SaaS Case Study

4. Azure – Component breakdown

5. Key Challenges

6. Architectural Best Practices

7. Cost Considerations


What are the market trends? “Majority of large enterprises consider speed and agility to be the primary benefit of cloud. We’ll see about a 10x increase in private cloud deployments in 2012” - Gartner

“business groups are adopting cloud 2.5 times faster than IT groups.” – Forrester


What are your options?

Storage

Servers

Networking

O/S

Middleware

Virtualization

Data

Applications

Runtime

You

man

age

Managed by vendor

Storage

Servers

Networking

O/S

Middleware

Virtualization

Data

Applications

Runtime Yo

u m

anag

e

Storage

Servers

Networking

O/S

Middleware

Virtualization

Data

Applications

Runtime

You

man

age

Managed by vendor

Storage

Servers

Networking

O/S

Middleware

Virtualization

Data

Applications

Runtime

Managed by vendor

(On-Premises) IaaS PaaS SaaS


Benefits of SaaS Applications on the cloud

• Faster customer acquisition

• Higher availability; greater scalability

• Enables companies to focus on core product features

• Opens new markets

• Lower cost of ownership

• Ease of administering multi-tenancy

• Lower cost of maintenance and deployment


SmartMPM – a SaaS solution for marketers

Convenience Accuracy Customization Better executive decisions based on ROI

Manual Extraction & Compilation Excel is the consolidation solution Continuously changing data ROI? Not sure where to start

Mobile

eMail

Radio

TV

Print

Web

Search Engine

Paid Search

Facebook

Twitter

YouTube

Mobile

eMail

Radio

TV

Print

Web

Search Engine

Paid Search

YouTube

Twitter

Facebook


SmartMPM – our SaaS Marketing Solution

http://smartmpm.com/


SmartMPM Requirements

1. Support multi-tenancy.

2. Scale efficiently.

3. Have functions in place to monitor, configure, and manage the application and tenants.

4. Support unique user identification and authentication.

5. Support some level of customization for each tenant.


Components of Windows Azure

Web/Worker Roles SQL Azure Tables Blobs Data Management

SQL Azure Reporting (in CTP)

Business Analytics

Cloud Applications

Queues Service Bus Messaging

Traffic Manager Connect Networking

In-Memory CDN Caching

HPC Scheduler HPC

Marketplace Commerce

Windows Azure Active Directory

Identity

.NET Java PHP

Node.js

SDKs


SmartMPM Pre-Azure Architecture (On-Premise)

Web servers

Internet

File Storage Mirrored Database Servers

Load Balancer

On-Premise

Third Party Data Providers


SmartMPM Architecture on Azure

Web application on

Web Role Instances SQL Azure

Binary Files Blob Storage

Background processes

Worker Role Instances

Third Party Data

Providers

Windows Azure Diagnostics

Logs Table Storage

Session State Windows Azure Cache

Third Party Data

Providers


SmartMPM Migration Process

Migration

Deployment Model

Platform Selection Execute (Agile Approach)

Monitor

Decide Cloud Type (Public, Private,

Hybrid)

Develop, Deploy & Test Prototype on Trial Subscription

Plan Migration Phases

Establish Driving Factors for Cloud

Migration

Setup Windows Azure dev

environment.

Evaluate Platform Options and finalize

platform

Proto Type Phase 1

Migrate database to SQL Azure

Test & Rollout

Setup Dev, QA & Production

environments on Azure

Capacity Utilization

Performance

Usage Cost

On-Premise Hybrid Hybrid Public Cloud Public Cloud

Setup Windows Azure Account, Subscriptions &

Users

Phase 2

Rewrite the application

components

Test & Rollout

Research & Design Azure

solution

Identify technical risks & define diagnostics

strategy

Phase 3

Test & Rollout

Take on-premise Infrastructure

down

Develop Worker Roles

Design Worker Roles for

background processes

Establish Cloud Center of

Excellence


Challenges – SQL Azure 1. Connectivity Issues

• Provides a large-scale multi-tenant database service on shared resources • Connections may close or may not be available when requested • Retry logic around every connection request is needed • Transactions should be coded to self-recover

2. Migration Process • No support for RESTORE and BACKUP • Use SSIS or bulk copy utility/migration wizard/Red Gate SQL Azure Backup

3. Clustered Index

• Is a requirement • SELECT INTO is not supported

4. Size Limitation

• Web Edition 5GB • Business Edition 150 GB

5. Security

• Data Encryption methods not supported. Uses SSL for data transfers • Authentication – only supports database logins not network logins


Challenges – Application Development 1. Lack of Session Affinity

• In-Proc sessions do not work

2. Persistent Storage on Server • Storage on local web server is absolute “No”

3. Integration with on-premise systems

• Legacy APIs and Interfaces between systems may not work. • Take advantage of Connect, Service Bus & Queues.

4. Latency • Choose appropriate data center • Cache as much as possible

5. Debugging & Troubleshooting

• Traditional logging utilities may not work. • Take advantage of windows Azure Diagnostics.


Deployment Considerations 1. Deployment

During development – Redeploying whole package can be time consuming – Use Web deploy for upgrading a single role instance

Production

– Redeploying whole package is the only option

2. Choose a deployment option that matches your need • Small Teams - Publish from Visual Studio IDE directly to Azure • Mid Sized Teams - Generate Package and upload from Management

portal • Large Teams - Build scripts to auto deploy package to Azure using

PowerShell scripts


Architectural best practices

Scale out, not up

1. No local state or affinity 2. Minimize dependencies

Avoid Synchronicity

1. Minimize dependency 2. Loosely couple “process” from “process-trigger” 3. Queue the work

Single big box

Multiple small boxes


Architectural best practices Cache Cache everything you can:

1. Windows Azure Cache 2. Table Storage 3. SQL Azure 4. Content Distribution Network

Monitor Health & Performance Use Azure diagnostics API to collect

1. Event Logs 2. Performance Counters 3. Trace/Debug Information (Logs) 4. IIS Logs, Failed Request Logs


Architectural best practices Scale data tier 1. Prevent data tier bottleneck 2. Put compute and storage in the same data center 3. Build an informed data partitioning strategy using SQL

federations

Security 1. Consider all cases where data can flow over insecure links. 2. Take steps to protect data

• HTTPS • Message-level signing/encryption • VPN Options (e.g. Windows Azure Connect)


Architectural considerations impacting cost 1. Purchasing models

• Consumption – pay as you go • Subscription – value for commitment • Additional Licensing – coordinated purchasing (volume discounts)

2. Basis for Consumption Prices

• Compute - instance size & hours of utilization • Storage - size and transactions • Bandwidth – amount of data transferred • Distributed Cache Service – size • Messaging (Queues, Service Bus) - number of messages

3. Predicting Cost

• Convert to units that make sense for your service – user, feature, business transaction

• Simulate variable costs on top of the fixed cost • Use the pricing calculator for rough estimate


Architectural considerations impacting cost

4. Factoring Cost into architecture decisions • Data Storage: SQL Azure or Azure Storage or Blob? • Session State: Azure Cache, SQL Azure or Azure Storage? • Integration: App Fabric Service Bus or Azure Connect?

5. Optimize Cost

• Measure everything and anything • Improve performance because better performance = lower cost • Whenever possible use cache and compress content • Use different storage accounts for application data and

diagnostics data • Pick the correct VM size (1 VM is not equal to 1 task) • Bandwidth reduction – aggregate, protocol

KEEP IN MIND YOU ARE CHARGED EVEN IF YOU ARE NOT USING – SO

DELETE WHAT YOU ARE NOT USING.


Smartbridge Services – Helping clients find the right answer

Enterprise Systems

Enterprise Information Management

Emerging Technologies

IT Strategy ERP – JD Edwards Retail POS/BOS Systems Restaurant Technology Information Portals Application Development

Business Intelligence & Analytics Performance Management Enterprise Integration Data Governance Master Data Management Simulations & Forecasting Optimization

Cloud Services Enterprise Mobility Mobile Applications Marketing Performance & Analytics

Program & Project Management

Quality Assurance Implementation

Strategy, Assessment & Planning

Solution Architecture

Agile M

ethodology G

loba

l Del

iver

y


Current state Assessment

Future computing environment needs assessment

Opportunities to leverage the cloud

Risks and mitigation strategies

Implementation roadmap

Establish cloud infrastructure – Servers and Storage

Mail Migration to Office365

Sharepoint

Security and Malware

Low criticality app migration

Architecture development for complex applications

Development / migration to Cloud architecture

Integration into the enterprise

Deployment on the cloud

Smartbridge Cloud Advisory Services Leveraging our Hands On Experience with the cloud

Assessment & Strategy

Application Development / Migration

Commodity App Migration

Copyright © 2012 Smartbridge LLC. All rights reserved.

Deepthi Raju Director, Marketing Technology Services [email protected] 713.501.3415 Jon Shale Director, Enterprise Mobility & Cloud Technologies [email protected] 713.516.3098

Smartbridge

Houston Office [email protected]

713-360-2500


ASP.NET (Web Role)

Public Cloud

Sample Hybrid Enterprise Web Application

Private Cloud

Blob Storage Service

Queue Service

Web Browser

Service Bus Access Control Service

User Data

Application Data

Reference Data

Enterprise Data

Enterprise Web Svc

Enterprise Application

Third Party SaaS App Service

Enterprise Identity

ASP.NET (Web Role) ASP.NET

(Web Role) Web Svc

(Web Role)

Web Svc (Web Role) Web Svc

(Web Role)

Jobs (Worker Role)

Table Storage Service

migrating saas applications to windows azure - … saas applications to ... deepthi recently led the...

Documents