Passionate about technology, though not great at solving problems; eager to share, never tire of learning!
This article explains why Dubbo transitioned from interface-level to application-level service registration in version 3.x, detailing the performance pressures of interface registration, alignment with Spring Cloud and Kubernetes, and the underlying implementation using metadata centers, Nacos, Redis, and Zookeeper.
This comprehensive guide explains the fundamentals of HotSpot CMS garbage collection, identifies nine typical GC problem scenarios, analyzes their root causes, and provides practical tuning strategies, code examples, and diagnostic tools to help Java engineers optimize performance and avoid costly pauses.
This article explains a subtle thread‑pool deadlock caused by parent‑child task interactions, demonstrates the issue with a reproducible demo, analyzes why the latch logic fails, and provides a practical solution of isolating thread pools to avoid false‑deadlock behavior in microservices.
This article analyzes why two identical DELETE statements on a MySQL table with a unique index can deadlock, explains InnoDB lock types, walks through the execution flow, reproduces the issue with SQL and Java code, and discusses mitigation strategies.
This article presents 15 classic MySQL log interview questions and provides detailed explanations of redo log, WAL, binlog, undo log, two‑phase commit, log flushing mechanisms, and recovery strategies, helping readers deepen their database knowledge and ace technical interviews.
This article walks through the complete lifecycle of a single RPC call in Dubbo 3.x, covering demo setup, provider exposure, consumer referencing, parameter packaging, filter chains, cluster decision, routing, load balancing, communication and serialization protocols, and finally how the provider processes the request.
This article explores eleven practical methods for implementing delayed tasks in Java, covering native APIs like DelayQueue and Timer, advanced executors such as ScheduledThreadPoolExecutor, and popular messaging solutions including RocketMQ, RabbitMQ, Redis, Redisson, Netty, Hutool, and Quartz, with code demos and implementation details.
This article explains a new visualized full‑chain log tracing solution that organizes business logs by logical flow, dynamically links them during execution, and provides a visual, searchable view of the entire business process, dramatically improving issue localization in large‑scale distributed systems.
This article explains how traffic governance—through circuit breaking, isolation, retry strategies, degradation, timeout handling, and rate limiting—keeps distributed systems highly available, performant, and scalable, using concrete examples, formulas, and best‑practice patterns for modern microservice architectures.
This article explains why cache‑DB consistency is a long‑standing challenge, compares naive full‑load and delete‑cache approaches, analyzes concurrency and failure scenarios, and presents reliable solutions such as updating the database first followed by cache deletion using message queues or binlog subscriptions.
