https://code-mill-hub.com/blog/ Deep dives into Java, Spring Boot, and high-performance backend architecture. en-us shflzp12@gmail.com (Maria) shflzp12@gmail.com (Maria) Sun, 24 May 2026 00:00:00 GMT https://code-mill-hub.com/blog/spring-boot/2026-05-24-210202-post/ https://code-mill-hub.com/blog/spring-boot/2026-05-24-210202-post/ Navigate the labyrinth of distributed systems by mastering OpenTelemetry for end-to-end request visibility, transforming debugging into a streamlined process across Spring Boot microservices and Apache Kafka. Sun, 24 May 2026 00:00:00 GMT shflzp12@gmail.com (Maria) ObservabilityDistributed TracingOpenTelemetrySpring BootApache KafkaBackend ArchitectureJava 25 https://code-mill-hub.com/blog/spring-boot/2026-05-25-211450-post/ https://code-mill-hub.com/blog/spring-boot/2026-05-25-211450-post/ Unlock superior scalability, performance, and domain clarity in your microservices by implementing Command Query Responsibility Segregation (CQRS), leveraging the power of Spring Boot 4.0, Apache Kafka, and PostgreSQL. Mon, 25 May 2026 00:00:00 GMT shflzp12@gmail.com (Maria) CQRSBackend ArchitectureSpring BootApache KafkaPostgreSQLMicroservicesJava 25 https://code-mill-hub.com/blog/spring-boot/2026-05-26-214937-post/ https://code-mill-hub.com/blog/spring-boot/2026-05-26-214937-post/ Discover how Event Sourcing revolutionizes state management in microservices by storing all changes as a sequence of events, enabling powerful auditability, temporal querying, and unparalleled scalability with Spring Boot, Kafka, and PostgreSQL. Tue, 26 May 2026 00:00:00 GMT shflzp12@gmail.com (Maria) EventSourcingMicroservicesSpring BootApache KafkaPostgreSQLBackend ArchitectureJava https://code-mill-hub.com/blog/spring-boot/2026-05-30-210403-post/ https://code-mill-hub.com/blog/spring-boot/2026-05-30-210403-post/ This post deep dives into advanced caching techniques, from local in-memory solutions to distributed caches with Redis, and tackles crucial invalidation strategies using Apache Kafka to dramatically improve Spring Boot microservice performance and resilience. Sat, 30 May 2026 00:00:00 GMT shflzp12@gmail.com (Maria) CachingSpring BootPerformanceMicroservicesRedisCaffeineApache Kafka https://code-mill-hub.com/blog/spring-boot/2026-06-14-mastering-resilient-event-processing-advanced-kafka-patterns-spring-boot/ https://code-mill-hub.com/blog/spring-boot/2026-06-14-mastering-resilient-event-processing-advanced-kafka-patterns-spring-boot/ Dive deep into building truly fault-tolerant, highly available event-driven microservices by mastering advanced Apache Kafka patterns like transactional producers/consumers, dead-letter queues, and robust retry mechanisms with Spring Boot 4.0 and Java 25. Sun, 14 Jun 2026 00:00:00 GMT shflzp12@gmail.com (Maria) KafkaSpring BootEvent-Driven ArchitectureMicroservicesResilienceFault ToleranceJava 25Distributed SystemsApache KafkaSpring Boot 4.0 https://code-mill-hub.com/blog/spring-boot/2026-06-18-mastering-reactive-programming-spring-webflux-r2dbc-kafka/ https://code-mill-hub.com/blog/spring-boot/2026-06-18-mastering-reactive-programming-spring-webflux-r2dbc-kafka/ Dive deep into Mastering Reactive Programming with Spring WebFlux to architect highly scalable, resilient, and non-blocking microservices. This guide demonstrates how to build peak-performance backend systems with Spring Boot 4.0, leveraging R2DBC for reactive data access to PostgreSQL and integrating seamlessly with Apache Kafka. Thu, 18 Jun 2026 00:00:00 GMT shflzp12@gmail.com (Maria) Reactive ProgrammingSpring WebFluxSpring Boot 4.0Project ReactorR2DBCApache KafkaNon-blocking I/OBackend ArchitectureJava 25Microservices Performance