Presentation at Devoxx 2011 by Dirk Deridder and Koen Vanderkimpen, working for Smals (Belgium)

1. Going Extreme for Health Care Koen Vanderkimpen @koenvdk Dirk Deridder @dirkderidder When Security , Performance , Scalability , and Availability all want to be the star of the show

2. Smals Dirk Deridder Koen Vanderkimpen Preferred ICT Partner of Social Security and Health Care Institutions in Belgium Smals Research Team Dedicated to introducing innovative IT in e-Government And solving clients' more abstract problems 1.5 years @ Smals, specializing in OO, software develop- ment, version control; implemented first demo of the PCS 1 year @ Smals, specializing in dynamic programming languages, software architecture, Agile and XTP

9. Symmetric Encryption Message Secret key Encrypted Message Alice Bob

10. Assymmetric Encryption (Public Key) Public Key Private Key = +

11. Primary Care Safe - PCS Bob PCS Dokters.Org

13. Primary Care Safe - PCS Dr. Bob PCS Dokters Org Gov (ehealth) Patent Pending! 1 2 1 2 1 2

14. Fine-Grained Access Control Patient File Medication Parameters Allergies Journal … Anti-Diabetical Anti-Aids Blood Pressure Heart Condition Other Pulse Entries Entry1 Entry2 …

21. Security Availability Scalability Performance Flexibility Challenge: Reconciling the NFR's

23. XTP versus Traditional N-Tier Solution? Business Processing Tier Web Tier Database Tier Primary Primary Backup Backup x Messaging Tier Availability? Scalability? Elasticity? Performance? Load Balancer Primary Primary Primary Backup Backup Backup Primary Backup

25. Extreme Transaction Processing « An application style aimed at supporting the design , development , deployment , management and maintenance of distributed TP applications characterized by exceptionally demanding performance , scalability , availability , security , manageability , and dependability requirements » Everything we need « in a box »?

26. Let’s get this « XTP solution in-a-box »! Hypertable BigTable NoSQL DevOps MongoDB MemcacheDB Cassandra CouchDB Voldemort Map/Reduce Hadoop Grid Computing Space Based Architecture Event Driven Architecture Shared Nothing Architecture Partitioning Terracotta Akka Erlang Actor Model Scala AmbientTalk Node.js … Async Flows In-memory DB Master/Worker Task Execution

28. Extreme Availability? In an ideal world 100% In reality, aim at "100%"  cost/benefit analysis of 24/7

29. Extreme Availability? Note: Planned downtime is typically not included!  Difference between continuous operation and high availability "Anything that can go wrong will go wrong" Edward A. Murphy  Hardware, Software, Ecosystem, Environment, People , Processes… Going from « two nines » to « three nines »  Seems like a small step, in practice an extremely challenging endeavour Higher levels of availability imply higher complexity and higher cost !

34. Space Based Architecture Server Program Memory Server Program Memory

35. Space Based Architecture Server Program Memory Server Space Program Memory

36. Space Based Architecture Server Program Memory Processing Unit Processing Unit Space Program Memory Program Memory

37. Space Based Architecture Server Program Memory Server Server Processing Unit Processing Unit Space Program Memory Program Memory

38. Space Based Architecture Server Program Memory Server Server Server Processing Unit Processing Unit Processing Unit Space Program Memory Program Memory Program Memory

39. Space Based Architecture Server Program Memory Server Server Server Processing Unit Processing Unit Processing Unit Space Program Memory Program Memory Program Memory

40. Space Based Architecture Server Program Memory Server Server Processing Unit Processing Unit Processing Unit Space Program Memory Program Memory Program Memory

41. Space Based Architecture Server Program Memory Server Server Server Processing Unit Processing Unit Processing Unit Space Program Memory Program Memory Program Memory Lots of flexibility and support « out of the box » for realizing an(y) XTP solution

42. XTP versus Traditional N-Tier Solution? Business Processing Units (Data + Processing + Messaging) A B C A B C A B C Web Processing Units Load Balancer Persistency as a Service Database

43. Illustration Availability? Scalability? Elasticity? Performance?

45. Going Extreme for Health Care Koen Vanderkimpen @koenvdk Dirk Deridder @dirkderidder When Security , Performance , Scalability , and Availability all want to be the star of the show Q&A