“Purikura” culture in Japan and our web application architecture
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Koichi Sakata presented on Japanese culture, specifically "Purikura" photo booths, and their web application architecture using technologies like MogileFS and Spring Cloud Contract Stub Runner. MogileFS is a distributed file system they use to manage terabytes of data across 15 storage nodes. Spring Cloud Contract Stub Runner allows them to test microservices by replacing services with stubs during testing. "Purikura" photo booths are popular in Japanese culture, where printed photos and digital images can be customized with stickers and effects.
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“Purikura” culture in Japan and our web application architecture
- 1. Koichi Sakata FURYU CORPORATION / KanJava JUG “Purikura” culture in Japan and our web application architecture #DevoxxUS @jyukutyo#purijp
- 3. Talk about • Japanese culture – “Purikura” • Products that I’m using – MogileFS – Spring Cloud Contract Stub Runner
- 4. Japan of today • Ninja • Samurai • Anime/Manga • Purikura
- 5. “Purikura”
- 7. • printed sticker • digital images
- 8. 10 years 6000 machines in JP $60 million / year
- 12. MogileFS • Distributed filesystem • Open source product • has three components
- 14. 15 storage nodes 10 billion files 480 TB 6 years
- 15. MogileFS advantages • No single point of failure – run on multiple machines • Automatic file replication – replicate between different storage nodes – 3 replicas
- 16. Problem • disk usage unbalancing – execute rebalancing command
- 17. Sample case
- 19. Add a server 80 80 0 Server1 Server2 Server3 Usage(%) same disk space as Server 1,2
- 20. Increasing 85 85 40 Server1 Server2 Server3 Usage(%)
- 21. Rebalancing 75 75 40 10 10 20 Server1 Server2 Server3
- 22. Another problems • Not support Perl 6. • Last commit is in Dec 2014.
- 23. Clouds? • in the process of reviewing – AWS S3 • need to transfer 10 billion files...
- 24. MogileFS • capable of managing tera byte data • not active now
- 26. Monolithic... • build time is long • difficult to change code • run tests again
- 27. Microservice
- 28. • eureka – Service Discovery • ribbon – Client Side Load Balancing • Hystrix – Circuit Breaker
- 29. Spring • Spring Boot • Spring Cloud Netflix
- 30. Problem
- 31. End to end test • How to test the case? – the case that an exception happens in the microservice
- 32. throw an exception and return 500 HTTP status code
- 34. Spring Cloud Contract Stub Runner • replaces microservices with stubs • Stubs are run on WireMock • https://github.com/spring-cloud/spring-cloud- contract/tree/master/spring-cloud-contract-stub-runner • http://wiremock.org/
- 35. Stubbing
- 36. How to make and run stubs • Add maven plugin. • Write stub behavior in Groovy • Deploy stub to a repository • Run a Stub Runner with stubs
- 37. Maven plugin
- 38. <plugin> <groupId>org.springframework.cloud</groupId> <artifactId> spring-cloud-contract-maven-plugin </artifactId> <version>${spring-cloud-contract.version}</version> <extensions>true</extensions> <configuration> <!-- By default it would search under src/test/resources/ --> <contractsDirectory>${project.basedir}</contractsDirectory> </configuration> </plugin>
- 39. Groovy DSL
- 40. org.springframework.cloud.contract.spec.Contract.make { request { method 'POST' url '/example' body([ "id": 12345 ]) } response { status 201 body([ “name”: “john” ]) headers { contentType('application/json;charset=UTF-8’) } } }
- 41. Maven Deploy
- 42. $ mvn deploy/install [INFO] Installing ... stubs.jar
- 43. Run stub runner
- 44. $ cd to/stubrunner $ java -jar -Dstubrunner.ids=[groupId]:[artifactId] -Dstubrunner.idsToServiceIds. [artifactId]=something stubrunner.jar Stub runner downloads stubs from repository
- 45. Stub port?
- 47. $ cd to/stubrunner $ java -jar -Dstubrunner.ids=[groupId]:[artifactId] -Dstubrunner.idsToServiceIds. [artifactId]=something stubrunner.jar used to register in eureka
- 48. Summary • MogileFS is capable of managing tera byte data. • Spring Cloud Contract Stub Runner is useful. • Purikura is Japanese culture.
- 49. Thank you again for coming. #DevoxxUS @jyukutyo#purijp Thank you for coming
Notes de l'éditeur
- from Kyoto J apan leader of Japanese JUG KanJava
- animation comic
- Have you ever heard Purikura machine take a picture of your face and pose
- Purikura is different from it in function
- both of them are called Purikura
- have produced 10 years are operating 6000 machine in Japan only annual sales
- have taken Purikura at least once I believe
- are send are stored visit our web site Spring Boot and MogileFS
- management server communicates with client file information and configuration HTTP multiple machines
- certain capable of managing tera byte data total file size system failures
- automatiaclly each photos
- here is
- new files with priority some files
- reduce usage increase usage instead
- written in Perl 2 years ago
- wouldn’t think about it
- built monolithic added many functions fat
- change it to ms architecture
- make it easy provide integrations for apps
- wanted to this diagram case
- I’d like to introduce
- control responses from ms in test I‘m positive useful
- 4 steps
- request response converted to JSON
- package JSON to JAR local repo, Artifactory
- run in different port from stub runner
- integrate with Spring Cloud