Engineering notes

Yousang

엔지니어링 노트

golang mongodb redis transaction kubernetes streaming kotlin concurrency spring boot distributed lock distributed systems configuration cascade permission race condition sse k8s coroutine mcp kafka cascade delete data consistency websocket retry clean architecture security go api refactoring rust milvus minio write conflict buffer ssot vector db debugging performance goroutine realtime logging observability modularity testing cleanup cancellation asyncio tokio gitlab ci rbac serviceaccount rolebinding networkpolicy persistentvolume cloudflare dns cache memory optimization data structure vector store file processing atomicity inheritance toolset file download drm prefix handling separation of concerns explicit grant migration collection refactor team hierarchy orphan team role management batch job data integrity orphaned data lock queue isolation authorization pipeline document processing ttl synchronization eof array frontend consistency pagination optimization aggregation cpu channel file upload pub/sub queue circuit breaker sync search regex injection parallel processing virtual thread java21 python batch design patterns cronjob ddd tdd api gateway microservices keycloak docker build dto entity web crawling jsoup computer science thread hexagonal spring security jwt ingress load balancer master node worker node deployment statefulset architecture interview