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

@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

[email protected]

@florincoros

http://www.infiniswiss.com/

http://www.iquarc.com/

oncodedesign.com


Many thanks to our sponsors & partners!

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About me

@florincoros

Co-Founder & Partner

Co-Founder & Partner

.com


https://oncodedesign.com/ITCamp2017

In-Process / Inter-Process Communication

4

Client Service



Distributed Large Enterprise Applications

5

Data Data Data

Scalability

Reliability

Availability

Security

Maintainability

Testability

Migrations

Modernization



Simpler Architectures

6

Database

Database

Maintainability

Testability

Migrations

Modernization

Scalability

Reliability

Availability

Security



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



• 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



DEMO: Example of Dependent Services

9

QuotationService

+ GetQuotations() : Quotations

IQuotationService

OrdersService

+ PlaceSellLimitOrder()

+ PlaceBuyLimitOrder()

+ GetLimitOrders() : LimitOrders

PortfolioService

+ GetPortfolioValue() : decimal

IPortfolioService

IOrdersService



Individual Deployment

10

IOrdersService

OrdersService

IPortfolioService

PortfolioService IQuotationService

QuotationService

inter-process



Optimized Deployment for Orders – Quotation Communication

11

IOrdersService

OrdersService

IPortfolioService

PortfolioServiceIQuotationService

QuotationService

in-process

inter-process

QuotationService



Host All in One Process (like a monolith)

12

IOrdersServiceIPortfolioService IQuotationService

QuotationService

in-processin-process

OrdersServicePortfolioService



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



Code Demo

14www.github.com \ iQuarc \ Code-Design-Training \ InterProcessCommunication \ TradingApp

https://github.com/iQuarc/Code-Design-Training/tree/master/LessonsSamples/LessonsSamples/Lesson7/CohesionCoupling

https://github.com/iQuarc/Code-Design-Training/tree/master/InterProcessCommunication/TradingApp


Florin Coroş

Co-founder & Partner, iQuarc www.iquarc.com

Co-founder & Partner, InfiniSwiss

www.infiniswiss.com

.com

email: [email protected]

blog: onCodeDesign.com

tweet: @florincoros

http://www.iquarc.com/

http://www.infiniswiss.com/

mailto:[email protected]

https://oncodedesign.com/

https://twitter.com/florincoros

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

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