Author
Kim
Backend software engineer working with Java, Spring Boot, and Kafka. I write about engineering problems, performance work, and architecture decisions from development and operations.
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Spring Boot 3.5 Native Images with GraalVM: A Measured Build, Startup Against the JVM, and a Reflection Failure Fixed with RuntimeHints
One Spring Boot 3.5.16 web app compiled with GraalVM CE 21.0.2 and Native Build Tools 0.10.6: 1m14s build, 78 MB binary, first response in about 50 ms versus about 1 s on the JVM, plus a ClassNotFoundException reproduced in the native binary and fixed with a RuntimeHintsRegistrar.
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Envoy as a Sidecar for a Java Service: A Configuration That Loads, and What Retries, Timeouts, Outlier Ejection and Circuit Breakers Actually Do
The earlier envoy.yaml is rejected by Envoy 1.23 and 1.39.1 alike and its docker command cannot reach a service on the host. This version runs Envoy 1.39.1 in front of a plain Java HTTP server and reads retries, a 1 s route timeout, consecutive-5xx ejection, the panic threshold and a 1-connection circuit breaker off the…
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Building Scalable Multi-Modal AI Pipelines Combining Vision and Language Models
Explore building scalable AI pipelines integrating vision and language models with practical tips, code examples, and best practices.
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Implementing Kafka Producer Idempotence for Exactly-Once Delivery in Distributed Systems
Learn to configure and implement Kafka producer idempotence using Java for exactly-once message delivery, including code examples, troubleshooting, security, and performance best practices.
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Implementing Production-Grade Java Application Configuration Reloading without Downtime
Learn how to implement dynamic, zero-downtime configuration reloading in Spring Boot 3 applications using Spring Cloud Config and Actuator with secure, validated refresh workflows and operational best practices.
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Implementing AI-Driven Feature Engineering Pipelines with Automated Data Transformation
Learn how to build scalable AI-driven feature engineering pipelines automating data transformation, feature selection, and model integration using Python with practical code examples and troubleshooting guidance.
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Building Production-Ready Webhooks with Retries and Dead Letter Queues
Discover best practices to implement robust webhooks using retries and dead letter queues to ensure reliable event delivery and system resilience.
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Implementing Kafka Consumer Group Rebalance Listeners for Seamless Partition Transitions
Implement Kafka rebalance listeners to ensure smooth partition transitions, precise offset commits, and resilient consumer group handling.
