Scaling Out .NET


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Scale Out your .NET applications by leveraging IIS7, AppFabric, Web Farm Framework, and Web Deploy. Jax Code Camp 2011.

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  • Ritchie,
    its really a very well explained and easy to understand presentation. being a user of distributed cache, there is no doubt that it can enhance the performance ans scalability of your app. I've evaluated a couple of third party distributed cache providers during one of my projects but I personally recommend NCache by Alachisoft( )
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Scaling Out .NET

  1. 1. Scaling Out .NET<br />Scale Out your .NET applications by leveraging <br />IIS7, AppFabric, Web Farm Framework, and Web Deploy<br />Brian Ritchie<br />Chief ArchitectPayformance Corporation<br />Email:<br />Blog:<br />Web:<br />
  2. 2. Who am I?<br />Brian Ritchie<br />Chief Architect at Payformance Corporation<br />Nearly 20 years of development experience<br />Developing on .NET since 1.0 Beta 1<br />Contributed to Mono and other open source projects<br />
  3. 3. Reasons to scale out<br />Increases Reliability<br />Increases Performance<br />Provides Elastic Scalability<br />
  4. 4. So why isn’t everyone doing it?<br />
  5. 5. Scale Out Challenges<br />Design Considerations<br />Management Complexities<br />Maintenance Challenges<br />
  6. 6. Components of a scaled out architecture<br />Load Balancing<br />Network Load Balancing<br />Queued Processing<br />Workflow Distribution<br />Distributed Caching<br />
  7. 7. Increase Reliability & PerformanceLoad Balancing<br />Use load balancing to spread work across multiple machines<br />Building out instead of building up uses lower cost resources<br />Elastic scaling for extra capacity<br />Prevent single point of failure<br />
  8. 8. Network Load Balancing<br />NLB: Network Load Balancer<br />ARR: Application Request Routing<br />F5 BigIP Local Traffic Manager<br />Increase Reliability & PerformanceLoad Balancing Options<br />
  9. 9. Workflow Distribution<br />Windows Server AppFabric<br />Increase Reliability & PerformanceLoad Balancing Options<br />
  10. 10. Increase Reliability & PerformanceLoad Balancing Options<br />Queued Processing<br />Pick a queue: MSMQ, SQL Service Broker, SQL Table, etc.<br />Process it with a multi-threaded Always-On Services<br />Queue<br />Workers<br />Enqueue<br />
  11. 11. Effects of Queued Processing<br />
  12. 12. Increase Reliability & PerformanceCaching<br />Using caching to decrease load on centralized database resources<br />Load balanced web servers required shared session<br />
  13. 13. Increase Reliability & PerformanceDistribute Your Cache<br />A Distributed Cache has these benefits:<br />In-Memory for Performance<br />Replicated for Reliability<br />ASP.NET providers for easy integration<br />Doesn’t add a single point of failure<br />Options<br />Windows Server AppFabric Cache (“Velocity”)<br />MemCached<br />
  14. 14. Management & MaintenanceChallenges<br />A scaled out infrastructure presents its own set of challenges:<br />How do I provision resources easily?<br />Do I need to manage each machine individually?<br />How do I deploy application updates?<br />How do I automate the manual tasks?<br />
  15. 15. The Solution…<br />
  16. 16. Management & Maintenance Solutions:Application Platform<br />IIS7+AppFabric: Application Platform<br />Unified application platform: web sites, web services, always-on services<br />Move your Windows Services to IIS7 with AppFabric to improve management & deployment<br />
  17. 17. Management & Maintenance Solutions:Deployment Automation<br />Web Deploy 2.1 <br />Combines all build resources into one package and makes deploying applications to the host server easy<br />Components<br /><ul><li>Command-line tools
  18. 18. Server-side service
  19. 19. MSBuild packaging support
  20. 20. Visual Studio configuration integration</li></li></ul><li>Management & Maintenance Solutions:Deployment Automation<br />Web Deploy 2.1 <br />Deploy<br />Package<br />Build/Deploy Server<br />Build Server<br />(using MSBuild)<br />Deployment<br />Package<br />IIS<br />Server<br />IIS MMC – Export Application<br />IIS MMC – Import Application<br />
  21. 21. Management & MaintenanceSolutions<br />Web Farm Framework 2.0<br />Centralized farm management<br />Easily provision resources<br />Distribute updates across the farm<br />Ease maintenance with rolling upgrades & automatic load balancer control<br />Extensible: Plug-ins for managing 3rd party load balancers<br />
  22. 22. Management & MaintenanceSolutions<br />Web Farm Framework 2.0<br />synchronize<br />deploy<br />control<br />control<br />Primary<br />
  23. 23. Management & Maintenance Solutions: Monitoring via AppFabric<br />Windows Server AppFabric Dashboard<br />
  24. 24. Putting it all togetherwith a sample web farm<br />DEMO<br />Hardware load balancerBigIP F5<br />Web Farm<br /><ul><li>ASP.NET Web Application
  25. 25. IIS7
  26. 26. Web Farm Framework 2.0
  27. 27. Windows Server AppFabric
  28. 28. ASP.NET AppFabric Session Provider
  29. 29. Web Deploy</li></ul>Deployer<br /><ul><li>Web Deploy</li></ul>Cache Cluster<br /><ul><li>AppFabric Cache Service</li></li></ul><li>Management & Maintenance Solutions: Monitoring via Operations Manager<br />System Center Operations Manager with Windows Server AppFabric Management Pack<br />AppFabric Event Collection service<br />AppFabric Workflow Management service<br />AppFabric Caching Service<br />AppFabric SQL monitoring databases<br />AppFabric SQL Workflow Instance Stores<br />AppFabric database connections<br />IIS Hosted WCF and WF services<br />
  30. 30. Management & Maintenance Solutions: Task Automation<br />Automate using: <br />Automation tools cover:<br /><ul><li>AppFabric
  31. 31. IIS7
  32. 32. Web Farm Farmwork</li></ul>Powershell<br />API<br />
  33. 33. Questions?<br />
  34. 34. Web Farm Framework<br />Web Farm Framework<br />Scott Gu’s Introduce to WFF 2.0<br />WFF Documentation (including API & Powershell)<br />Windows AppFabric<br />AppFabric Architecture Guide<br />AppFabric Management Pack for Op Mgr 2007<br />AppFabric Presentation<br />Other<br />Memcached ASP.NET Providers<br />SQL Table Queues<br />Azure Scalability using Queues<br />Web Deploy Team Blog<br />Application Request Routing<br />Learn More<br />