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@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
Decide Between In-Process or Inter-
Process Communication
at ...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
Many thanks to our sponsors & partners!
GOLD
SILVER
PARTNERS
...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
About me
@florincoros
Co-Founder & Partner
Co-Founder & Partn...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
In-Process / Inter-Proces...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Distributed Large Enterpr...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Simpler Architectures
6
D...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Performance Degradation D...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
• Develop, test and maint...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
DEMO: Example of Dependen...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Individual Deployment
10
...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Optimized Deployment for ...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Host All in One Process (...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
How to Achieve This?
13
–...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
https://oncodedesign.com/ITCamp2017
Code Demo
14www.github.co...
@ITCAMPRO #ITCAMP17Community Conference for IT Professionals
Florin Coroş
Co-founder & Partner, iQuarc www.iquarc.com
Co-f...
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ITCamp 2017 - Florin Coros - Decide between In-Process or Inter-Processes Communication at Deploy Time

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One of the challenges of designing distributed systems is to decide which of the services that compose the application are loaded in the same process and communicate directly and which should be deployed on different boxes and use inter-process communication. Sometimes, we cannot anticipate this at all and we’d want the flexibility to change it based on usage metrics collected while the system is running in production.
In this session we will learn, from real life projects experience, how we can achieve the flexibility of deciding only at deploy time, without changing the code, on which of our services communicate in same process and which use inter-process communication. We will achieve this using the iQuarc.AppBoot library, which is an abstraction over a Dependency Injection Container and provides support for modular applications.

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ITCamp 2017 - Florin Coros - Decide between In-Process or Inter-Processes Communication at Deploy Time

  1. 1. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals Decide Between In-Process or Inter- Process Communication at Deploy Time Florin Coroş www.infiniswiss.com | www.iquarc.com | onCodeDesign.com florin.coros@iquarc.com @florincoros
  2. 2. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals Many thanks to our sponsors & partners! GOLD SILVER PARTNERS PLATINUM POWERED BY
  3. 3. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals About me @florincoros Co-Founder & Partner Co-Founder & Partner .com
  4. 4. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 In-Process / Inter-Process Communication 4 Client Service
  5. 5. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Distributed Large Enterprise Applications 5 Data Data Data  Scalability  Reliability  Availability  Security Maintainability  Testability  Migrations  Modernization 
  6. 6. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Simpler Architectures 6 Database Database Maintainability  Testability  Migrations  Modernization   Scalability  Reliability  Availability  Security
  7. 7. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Performance Degradation Due To Inter-Process Communication 7 Data Data Data Database vs Distributed System Monolith + No performance drawbacks due communication + Develop, Test, Maintain and Operate in isolation + Scalability, Reliability, Availability, Security
  8. 8. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 • Develop, test and maintain in isolation as if each service is hosted individually • Load more services in the same process and communicate through simple function calls • Decompose the system regardless of deployment and communication concern • Decide at deploy time (configs only) which services are loaded in same process and which communicate outside the process • FOCUS on DECOMPOSITION and FUNCTIONALITY Flexible Deployment 8
  9. 9. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 DEMO: Example of Dependent Services 9 QuotationService + GetQuotations() : Quotations IQuotationService OrdersService + PlaceSellLimitOrder() + PlaceBuyLimitOrder() + GetLimitOrders() : LimitOrders PortfolioService + GetPortfolioValue() : decimal IPortfolioService IOrdersService
  10. 10. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Individual Deployment 10 IOrdersService OrdersService IPortfolioService PortfolioService IQuotationService QuotationService inter-process
  11. 11. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Optimized Deployment for Orders – Quotation Communication 11 IOrdersService OrdersService IPortfolioService PortfolioService IQuotationService QuotationService in-process inter-process QuotationService
  12. 12. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Host All in One Process (like a monolith) 12 IOrdersServiceIPortfolioService IQuotationService QuotationService in-processin-process OrdersServicePortfolioService
  13. 13. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 How to Achieve This? 13 – Depend only on Contracts implemented in abstract types – Proxies to forward the contract calls to the actual implementation – Type Discovery Through Design
  14. 14. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals https://oncodedesign.com/ITCamp2017 Code Demo 14www.github.com iQuarc Code-Design-Training InterProcessCommunication TradingApp
  15. 15. @ITCAMPRO #ITCAMP17Community Conference for IT Professionals Florin Coroş Co-founder & Partner, iQuarc www.iquarc.com Co-founder & Partner, InfiniSwiss www.infiniswiss.com .com email: florin.coros@iquarc.com blog: onCodeDesign.com tweet: @florincoros

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