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Shopzilla On Concurrency

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Rodney Barlow
Rodney Barlow

Abstract Concurrency is everywhere. Prior to Java 5, concurrency was difficult and error prone. Since Java 5, it's far more prevalent in our application code, and through time it's been lurking in open-source frameworks and containers. Concurrency is also a fundamental part of Shopzilla's web-site and services ecosystem. Introduction Rod Barlow from Shopzilla will explore a brief history of concurrency, and the key concurrency features and techniques provided by the Java API since Java 5. Topics covered include Immutability, Atomic References, Blocking Queues, Locks and Deadlocks. Also covered is Concurrency in Frameworks, and Shopzilla's Website Concurrency Framework, including Thread Pools, Executors and Futures.

TechnologyEducation
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Shopzilla on Concurrency Concurrency as Shopzilla's performance building block Rod Barlow, Architect 3/2/2010
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shopzilla, Inc. - Online Shopping Network 100M impressions/day 20-29M UV’s per Month 8,000+ searches per second 100M+ Products
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],History of Java Concurrency
Where is Concurrent Code? ,[object Object],[object Object],[object Object],[object Object]
Where is Concurrent Code? ,[object Object],[object Object],[object Object]
Immutability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Immutability - Guava ,[object Object],[object Object],[object Object],[object Object],[object Object]
Atomic References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Atomic References – Unique ID ,[object Object],[object Object],[object Object],[object Object],[object Object]
Atomic References – Parent Node ,[object Object],[object Object],[object Object],[object Object]
Atomic References – Takeaways ,[object Object],[object Object],[object Object],[object Object]
Blocking Queues ,[object Object],[object Object],[object Object]
Blocking Queues – Data Publish ,[object Object],[object Object],[object Object]
Locks – ReadWriteLock ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Distributed Cached Data Snapshot ,[object Object],[object Object],[object Object],[object Object]
Distributed Cached Data Snapshot ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Distributed Cached Data Snapshot
Distributed Cached Data Snapshot ,[object Object],[object Object],[object Object],[object Object]
Distributed Cached Data Snapshot ,[object Object],[object Object],[object Object],[object Object]
Distributed Cached Data Snapshot ,[object Object],[object Object],[object Object],[object Object]
Concurrency in Frameworks ,[object Object],[object Object],[object Object],[object Object],[object Object]
Concurrency in Frameworks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],Concurrency! Our pages today ship within 250ms
Shopzilla's Website Concurrency Pods & Service Calls
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object]
Shopzilla's Website Concurrency ,[object Object],[object Object],[object Object],[object Object]
Future ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Resources, Books ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
For more info…go to: ,[object Object],[object Object]
 

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Shopzilla On Concurrency

  • 1. Shopzilla on Concurrency Concurrency as Shopzilla's performance building block Rod Barlow, Architect 3/2/2010
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  • 3. Shopzilla, Inc. - Online Shopping Network 100M impressions/day 20-29M UV’s per Month 8,000+ searches per second 100M+ Products
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  • 26. Shopzilla's Website Concurrency Pods & Service Calls
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Editor's Notes

  1. Today I’d like to share with you Shopzilla’s redesign of our consumer site and content delivery infrastructure.
  2. So we’ve built an architecture that we believe to be performant and scalable. How do you go about testing this? There are a lot of moving parts * Highly concurrent requests, dozens of services, resource accesses Strategy: Each service is performance tested in isolation to its SLA. Then the full stack is performance tested
  3. Shopzilla is one of the largest and most comprehensive online shopping networks on the web through our leading comparison shopping sites Bizrate.com and Shopzilla.com and the Shopzilla Publisher Program We help shoppers find best value, for virtually anything from 1000’s retailers Across our network we serve more than 100M impressions per day to anywhere from 20-30M unique visitors searching as many as 8000x/second for more than 105M products
  4. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  5. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  6. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  7. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  8. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  9. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  10. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  11. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  12. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  13. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  14. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  15. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  16. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  17. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  18. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  19. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  20. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  21. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  22. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  23. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  24. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  25. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  26. Web application tier is a mashup of data from numerous sources All network communications via HTTP; no direct database access
  27. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  28. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  29. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  30. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  31. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  32. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  33. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  34. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  35. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching
  36. Web application is Java 1.6, Tomcat 6 Spring MVC Custom TAL templating engine Services are JAX-RS utilizing Apache CXF framework Database Access via Hibernate with Ehcache L2 caching Oracle 10g database We’re incorporating Oracle Coherence data grid for distributed caching