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데이터 베이스

인덱싱

• https://medium.com/@vishwajitpatil1224/3-postgresql-indexing-secrets-that-even-senior-devs-get-wrong-a4cd797c370e
• Scaling Databases Like a Pro: Indexing, Sharding and Partitioning Explained with Real-World Scenarios

모니터링

OTEL

• otel in spring 설정

Java/Spring

String

• my-interviewer-asked-so-is-string-immutable-in-java

대규모 트래픽

• https://aws.plainenglish.io/enable-spring-boot-application-to-handle-1-million-requests-per-second-5ef7e97ed386