{"id":22131117,"url":"https://github.com/slamdev/resilience-workshop","last_synced_at":"2025-03-24T09:20:23.966Z","repository":{"id":47601293,"uuid":"278136063","full_name":"slamdev/resilience-workshop","owner":"slamdev","description":null,"archived":false,"fork":false,"pushed_at":"2023-12-15T17:40:26.000Z","size":91,"stargazers_count":0,"open_issues_count":2,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-01-29T14:45:16.477Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/slamdev.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-07-08T16:09:14.000Z","updated_at":"2020-07-21T15:47:54.000Z","dependencies_parsed_at":"2024-12-01T18:41:49.010Z","dependency_job_id":null,"html_url":"https://github.com/slamdev/resilience-workshop","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/slamdev%2Fresilience-workshop","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/slamdev%2Fresilience-workshop/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/slamdev%2Fresilience-workshop/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/slamdev%2Fresilience-workshop/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/slamdev","download_url":"https://codeload.github.com/slamdev/resilience-workshop/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":245240828,"owners_count":20583102,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-12-01T18:30:04.113Z","updated_at":"2025-03-24T09:20:23.945Z","avatar_url":"https://github.com/slamdev.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Resilience Workshop\n\n## Patterns\n\n### CircuitBreaker\n\n1. Run **generate-base-load** test and demonstrate stable RPS\n2. Run **call-delayed-error** test and explain why RPS goes down\n3. Put `@io.github.resilience4j.circuitbreaker.annotation.CircuitBreaker(name = \"delayedError\")` on top of `delayedError` method and demonstrate how RPS is stabilizing.\n\n#### Cleanup\n1. Drop **call-delayed-error** job and restart **service-under-test** deployment\n\n### Retry\n\n1. Run **call-random-error** test and demonstrate 5xx and 2xx responses rate\n2. Put `@io.github.resilience4j.retry.annotation.Retry(name = \"randomError\")` on top of `randomError` method and demonstrate 2xx only responses\n\n#### Cleanup\n\n1. Drop **call-random-error** job and restart **service-under-test** deployment\n\n### Bulkhead\n1. Run **call-slow-db-query** test and demonstrate stable RPS and connection pool metrics\n2. Run **generate-db-entries** test and explain why connection pool is full\n3. Put `@io.github.resilience4j.bulkhead.annotation.Bulkhead(name = \"slowDbQuery\")` on top of `slowDbQuery` method and demonstrate how connection pool is stabilizing.\n\n#### Cleanup\n\n1. Drop **call-slow-db-query** job and restart **service-under-test** deployment\n\n### Pubsub\n\n1. Run **generate-pubsub-messages** test and explain how default pubsub 10s retry works\n\n## Helpful scripts\n\n```shell script\nkubectl port-forward -nresilience-workshop svc/pubsub-emulator 8085\nkubectl port-forward -nresilience-workshop svc/mongodb 27017\nkubectl port-forward -nresilience-workshop svc/faulty-service 8181:80\ncurl -H 'content-type: application/json' -X POST --data $'{\"messages\": [{\"data\": \"abcd\"}]}' http://localhost:8085/v1/projects/fake/topics/sample-topic:publish\nmongo \"mongodb://user:pass@localhost:27017/resilience-workshop\" --eval 'db.sample.insert({ _id : ObjectId(), name : \"test\" })'\nmongo \"mongodb://user:pass@localhost:27017/resilience-workshop\" --eval 'db.sample.find()'\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fslamdev%2Fresilience-workshop","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fslamdev%2Fresilience-workshop","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fslamdev%2Fresilience-workshop/lists"}