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Circuit Breaker Pattern
Closed
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success
error
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[threshold reached]
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Uploaded byAlex Soto
Long Live and Prosper To Monolith
Alex Soto gives a presentation on microservices and related topics such as isolation of code and data, reactive programming, and container orchestration with Kubernetes. He discusses challenges in deploying and managing containers at scale and introduces concepts like circuit breaker patterns and cloud native applications. Soto also covers advantages of monolithic applications and strategies for migrating from monoliths to microservices. The presentation includes demonstrations and encourages an approach of releasing software incrementally as "unicorns."
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Long Live and Prosper To Monolith
- 1. Live Long andProsper to Monolith Alex Soto @alexsotob Prague, 18-19 October 2018
- 2. @alexsotob2 Alex Soto Red HatEngineer www.lordofthejars.com @alexsotob Who Am I?
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- 7. @alexsotob7 … due to thegiven burdens of cost and organisational maturity, microservices will likely never reach the Adopt phase“ Rebecca Parsons - CTO at ThoughtWorks
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- 10. @alexsotob10 Isolation of Code review api impl detail api impl game api impl public exposesonly what is required favour low-coupling private highly cohesive reduces our memory footprint IMPL API Code Asset, Java 9 Modules
- 11. @alexsotob11 Isolation of Code Java9 - Modules module-info.java
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- 13. @alexsotob13 Isolation of Data gameschema Game Detail detail schema Reviewreview schema Module == Schema Joins inside Schema Referential Integrity across Schemas Global transactions
- 14. @alexsotob14 Isolation of Data gameschema Game Detail detail schema Reviewreview schema .sql .sql .sql .sql .sql ? ? ?
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- 17. @alexsotob17 Isolation of Data Flywayf = new Flyway(); f.setDataSource(); f.migrate(); mvn flyway:migrate <configuration> <url>..</url> … </configuration> <flyway:migrate url=“” user=“”/> flyway migrate -url=… -user=… gradle flywayMigrate flyway { url=“..” user=“.. }
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- 19. @alexsotob19 Reactive Java Creates Stream Sendsdata Where to Run Combiner How to combine Final Run
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- 22. @alexsotob22 Circuit Breaker Pattern Closed Open Half Open success error [underthreshold] fail [threshold reached] success reset timeoutfail
- 23. @alexsotob23 Circuit Breaker Defines CB Wrappedfunction Recovery
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- 27. @alexsotob27 Your code has NOBUSINESS VALUE until it’s deployed
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- 31. @alexsotob31 Your Stack Matters ServerHardware Operating System Application Server your.war Java Virtual Machine Custom Configuration Linux Kernel Version & Distribution Java 1.7.0_67 Tomcat, Wildfly, Jetty JDBC driver, users
- 32. @alexsotob32 DevOps Challenges forMultiple Containers ▪ How to scale? ▪ How to avoid port conflicts? ▪ How to manage them on multiple hosts? ▪ What happens if a host has trouble? ▪ How to keep them running? ▪ How to update them? ▪ Where are my containers? Node Node Node Node Node Logger Node
- 33. @alexsotob33 ssh docker run sshdocker run ssh docker run
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- 35. @alexsotob35 ▪ Greek for“Helmsman,” also the root of the word “Governor” (from latin: gubernator) ▪ Container orchestrator ▪ Supports multiple cloud and bare-metal environments ▪ Inspired by Google’s experience with containers ▪ Open source, written in Go ▪ Manage applications, not machines Meet Kubernetes
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- 38. @alexsotob38 Deploying in Cluster Alwaystwo instances of the image Docker image to run Port
- 39. @alexsotob39 Deploying in Cluster ReverseProxy Router Number of instances LB
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- 42. @alexsotob42 In-Memory Data Grid In-MemoryDataGrid Shopping Cart User A Shopping Cart User A
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- 44. @alexsotob44 Release as Unicorns BuildDockerfile DeployBuild Container Testing in Production Release s2i, OpenShift, Fabric8, Istio Teiid, Debezium (Test Prod)
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- 46. @alexsotob46 Advantages of monolith >Local Calls > All parts always up > Easy to debug > Easy to test > Refactor without running surprises > You see the real world every time > Easy to deploy (coordination) > Polyglot Languages, DB
- 47. @alexsotob47 Digital Darwinism Self-Service, On-Demand, Elastic, Infrastructure as Code (Cloud) Re-Org to DevOps Automation Puppet,Chef, Ansible and/or Kubernetes CI & CD Deployment Pipeline Advanced Deployment Techniques Microservices
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- 50. @alexsotob50 Stats service User Service AwardsService Question Service Advertise Service Question Service
- 51. @alexsotob51 NO, it isa monolith https://www.infoq.com/news/2015/06/scaling-stack-overflow
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