Scaling Out Your Web Infrastructure with IIS Application Request RoutingYounus AftabProgram ManagerMicrosoft Corporation

SESSION CODE: WSV324

Session Objectives and Takeaways

Session Objectives: Understand the value Application Request Routing (ARR) provides for Hosting Providers, Enterprises and Content Delivery NetworksSee how easy it is to set up and manage elastically scalable solutionsSee how ARR is used in production environments

Key Takeaway:Enable Scale and Caching with IIS using ARR (Available today with the Web Stack)

Detailed AgendaVisionARR in the marketplace today

Current customers and partnersLoad Balancing & Caching with ARRARR 101

Details and relationship with other IIS componentsARR 200

Advanced Caching Scenarios & key advantages over traditional CDNsARR & Smooth Streaming

Putting it all togetherARR, Web Farms and Scale

PollHow familiar are we with Load Balancing & Caching Technologies?

Very familiar

Interesting but limited usage

A lot of customer and partner interest

Not very interesting and not a lot of customer interest

Make it simple to deploy, manage, and elastically scale web applications across a farm of servers

Vision

Who is using ARR today?

Case Study:Internap

Case Study:Maximum ASP

Load Balancing with ARR

Proxy based HTTP request routing moduleRouting decisions are made at application layer (layer 7)Provides high availability and scalabilityUses WinHTTP as client stackSupports SSL-offloadingDoes not support SSL tunnelingWorks with other IIS7 modules for higher throughputCan be run on server core

Advanced Caching with ARR

Ability to Cache responsesControl HeadersSet Policies (use URL Re-Write Rules)

Can leverage Large Amount of Disk SpaceCan be used in parallel with Load BalancingConsolidates Request to provide efficient response timeByte Range CachingSupports Compression

ARR 101

Proxy and L7 load balancing scenarios.Shared hosting via “host name affinity”.

Deep Dive – ARR & URL Rewriter

ARR & URL Rewriter working togetherDefine rules in Rewriter

Manage server loadCache content @ proxyConfigure by extensionConfigure by pattern

SSL offloading

Deep Dive: Scaling out with ARR

6 configurable algorithms availableWeighted round robinWeighted total trafficLeast current responseLeast response timeServer variable hashQuery string hash

Optional Server Affinity using Host HeadersOptional Client Affinity using Cookies

Deep Dive: Monitoring Health with ARRLive Traffic-Based Monitoring

ARR determines health based on actual responsesConfigurable Health Criteria: X failures in N seconds

URL-Based MonitoringARR periodically requests a specified URLConfigurable Health Criteria

Range of status codes for a Healthy responseRecheck interval/timeoutOptionally check response content

Show the state of nodes in the Farm

Deep Dive: High availability

NLB 3rd party load balancer

Enabling Elastic Scale

DEMO

Powered by ARR v1 on WS 2008 R2

"Elastic Shared Platform," the first Microsoft ASP.NET shared web hosting platform designed to be highly available and completely PCI compliant (web + data). $49 a month after a free 30 day trialLaunched October 2009

ARR 200

Disk cache capabilities (ie. Use ARR as cache proxy)

Managing cache hierarchy (ie. Deploy ARRs as cache nodes in CDN)

Deep Dive – Request Consolidation

Consolidates requests so that high number of requests are not being routed to the cache server again and againReduces Load on the back end server

Live Smooth StreamingIncrease disk cache efficiency for large responses

Large ISO etc

Deep Dive: Request Consolidation and Live Smooth Streaming

Deep Dive – Multi Byte Range Support

Get a subset of byte data instead of complete requests and specify what is requiredHosted Content through byte ranges

PDF filesUpdates

Predominant requests can be partially cached

Deep Dive: Multi Byte Range Cache

Deep Dive – Multi Layer Caching

Load Balancers or Routers\Hubs in front of Edge CachePartial Partitioning

Edge to Parent Cache can be sent through a hashing algorithmStable Hashing Algorithm

Content hosted by Parent cache can be partitioned and divided up for more efficiency

Deep Dive: Setting up CDN using ARR

Caching and Smooth Streaming with ARR

DEMO

Summary

Use ARR to create highly scalable and reliable web farms

Use ARR’s new caching features to optimize response times and save on bandwidth for more complex deployments

ARR is available today!

Do you have any final questions?Use Q&A to submit your questions and comments.

Appendix

Demo TitleNameTitleCompany

DEMO

Resources

www.microsoft.com/teched

Sessions On-Demand & Community Microsoft Certification & Training Resources

Resources for IT Professionals Resources for Developers

www.microsoft.com/learning

http://microsoft.com/technet http://microsoft.com/msdn

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© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to

be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

JUNE 7-10, 2010 | NEW ORLEANS, LA