Thiyagu Palanisamy - Designing Microservices based systems | Codemotion Milan 2015
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The document discusses designing microservices-based systems, illustrating characteristics such as componentization, organization around business capabilities, decentralized governance, and infrastructure automation. It emphasizes the importance of understanding domain needs and the principle of designing modular systems that excel at singular functions. The presentation also references Conway's Law and advocates for design principles that enhance clarity, transparency, and simplicity in software development.
Thiyagu Palanisamy - Designing Microservices based systems | Codemotion Milan 2015
- 1. MILAN 20/21.11.2015 Thiyagu Palanisamy - ThoughtWorks Designing Microservices based systems
- 2. MILAN 20/21.11.2015 - Thiyagu Palanisamy What is microservice?
- 3. MILAN 20/21.11.2015 - Thiyagu Palanisamy Loosely coupled service oriented architecture with bounded contexts -Adrian Cockcroft Monolith Microservice
- 4. MILAN 20/21.11.2015 - Thiyagu Palanisamy ESB SOA? Microservices
- 5. MILAN 20/21.11.2015 - Thiyagu Palanisamy Characteristics of Microservice 1. Componentization via Services 2. Organized around Business Capabilities 3. Products not Projects 4. Smart endpoints and dumb pipes 5. Decentralized Governance 6. Decentralized Data Management 7. Infrastructure Automation 8. Design for failure 9. Evolutionary Design http://martinfowler.com/articles/microservices.html
- 6. MILAN 20/21.11.2015 - Thiyagu Palanisamy Why Microservices?
- 7. MILAN 20/21.11.2015 - Thiyagu Palanisamy http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3610582 http://tamai-lab.ws.hosei.ac.jp/pub/icsm92.pdf
- 8. MILAN 20/21.11.2015 - Thiyagu Palanisamy Accelerated growth of technology is disrupting businesses https://en.wikipedia.org/wiki/The_Singularity_Is_Near
- 9. MILAN 20/21.11.2015 - Thiyagu Palanisamy should be cheap to replace gives flexibility to experiment allows you to go as fast as possible needs on systems
- 10. MILAN 20/21.11.2015 - Thiyagu Palanisamy Divide & Conquer
- 11. MILAN 20/21.11.2015 - Thiyagu Palanisamy Designing Microservices
- 12. MILAN 20/21.11.2015 - Thiyagu Palanisamy organizations which design systems ... are constrained to produce designs which are copies of the communication structures of these organizations Conway's law 1967
- 13. MILAN 20/21.11.2015 - Thiyagu Palanisamy
- 14. MILAN 20/21.11.2015 - Thiyagu Palanisamy smaller services based on functional & non functional needs
- 15. MILAN 20/21.11.2015 - Thiyagu Palanisamy Catalog Product Payment Price trend Aggregated little outdated ok No delay Append only Async
- 16. MILAN 20/21.11.2015 - Thiyagu Palanisamy Understand Domain - Organise around business capabilities Price Cost Article Replenishment Assortment don’t repeat yourself
- 17. MILAN 20/21.11.2015 - Thiyagu Palanisamy Cost Gross Cost Supplier Discounts Net Cost Transportation Cost Packaging Cost Recycling Tax IVA Net Net Cost … single responsibility principlebounded context Supplier Cost Gross Cost Supplier Discounts Net Cost Operational Cost Transportation Cost Packaging Cost Recycling Tax Gross Cost Supplier Discounts Logistics Cost Invoice Discounts Volume Discounts Transportation Cost Packaging Cost
- 18. MILAN 20/21.11.2015 - Thiyagu Palanisamy Tell-Don't-Ask Discounts (Total) Volume Discounts Invoice Discounts Supplier Discounts Invoice Discounts Volume Discounts
- 19. MILAN 20/21.11.2015 - Thiyagu Palanisamy Cohesion & Coupling
- 20. MILAN 20/21.11.2015 - Thiyagu Palanisamy Evolutionary Design
- 21. MILAN 20/21.11.2015 - Thiyagu Palanisamy
- 22. MILAN 20/21.11.2015 - Thiyagu Palanisamy Java, the Unix way james lewis in 2012
- 23. MILAN 20/21.11.2015 - Thiyagu Palanisamy This is the Unix philosophy - Write programs that do one thing and do it well. Write programs to work together. Write programs to handle text streams, because that is a universal interface Doug McIlroy ps aux | grep conky | grep -v grep | awk '{print $2}' | xargs kill
- 24. MILAN 20/21.11.2015 - Thiyagu Palanisamy • Modularity - simple parts connected by well defined interfaces • Clarity - most important communication is to the developer • Composition - design programs to be connected to other programs • Separation - separate the mechanisms of the programs from the policies • Simplicity - small, straightforward cooperating pieces • Parsimony - avoid writing big programs • Transparency - design for visibility and discoverability • Robustness - robustness is the child of transparency and simplicity • Representation - easier to understand complex data than complex logic • Least Surprise - build intuitive products that are easy to use • Silence - do not print unnecessary output • Repair - fail in a manner that is easy to localize and diagnose • Economy - value developer time over machine time • Generation - write abstract high-level programs that generate code • Optimization - prototype software before polishing it • Diversity - programs to be flexible and open • Extensibility - design for the future by making their protocols extensible Eric Raymond’s 17 Unix Rules
- 25. MILAN 20/21.11.2015 - Thiyagu Palanisamy
- 26. MILAN 20/21.11.2015 - Thiyagu Palanisamy Rapid provisioning Basic Monitoring Rapid application deployment
- 27. MILAN 20/21.11.2015 - Thiyagu Palanisamy http://martinfowler.com/microservices https://www.thoughtworks.com/radar
- 28. MILAN 20/21.11.2015 Thiyagu Palanisamy ThoughtWorks hint - size of μs Questions?
- 29. MILAN 20/21.11.2015 - Thiyagu Palanisamy Leave your feedback on Joind.in! https://m.joind.in/event/codemotion-milan-2015