A comprehensive platform that combines Java development and architecture design, guaranteeing 100% original content. We explore the essence and philosophy of architecture and provide professional technical articles for aspiring architects.
The article warns that relying on quick, superficial bug fixes creates hidden technical debt, explains why deep understanding of code changes matters, and offers practical advice to keep code clean, maintainable, and resilient in complex systems.
This article explains Elasticsearch fundamentals—including clusters, nodes, shards, replicas, segments, routing, indexing, updates, deletions, search flow, pagination methods, and visualization tools—while offering practical optimization recommendations for high‑performance and scalable deployments.
This article presents a complete solution for reliable, resumable file upload and download over MQTT in distributed IoT platforms, leveraging FastDFS for storage and Redis for caching file metadata and progress, detailing the architecture, data structures, and handling of packet fragmentation, offsets, and cluster coordination.
This article explains the principles behind Spring Boot Starters, how auto‑configuration works via META‑INF/spring.factories, provides practical code examples, and lists the most common starters to help Java developers streamline dependency management and reduce configuration complexity.
High availability (HA) is essential for distributed systems, requiring redundancy and automatic failover across each architectural layer—from client to proxy, gateway, business logic, cache, and storage—to minimize downtime, achieve desired “nines” of uptime, and prevent cascading failures such as service snowballing.
A comprehensive performance benchmark shows RedisJSON delivering dramatically higher throughput and lower latency than MongoDB and ElasticSearch across isolated writes, isolated reads, and mixed workloads, highlighting its superior scalability and stability for modern data‑intensive applications.
This article walks through installing Arthas, selecting Java processes, and using core commands such as session, exit, dashboard, thread, jvm, trace, and monitor to diagnose, profile, and troubleshoot Java applications in production environments, complete with command examples and output snippets.
This article introduces Arthas, a Java online diagnostic tool, explains its instrumentation‑based runtime principle, guides installation on various platforms, and provides a comprehensive command reference—including basic, system, class, and enhancement commands—for effective debugging, monitoring, and performance analysis of Java applications.
This article explains how B+Tree improves disk I/O efficiency in MySQL InnoDB by detailing disk storage fundamentals, sector/block/page concepts, the differences between B‑Tree and B+Tree, and practical search examples that illustrate reduced I/O operations and faster queries.
This article provides a comprehensive, hands‑on guide to building a MySQL master‑slave cluster with GTID replication and configuring MHA for automatic failover, covering environment preparation, password‑less SSH, MySQL settings, MHA installation, custom scripts, testing, and the key advantages of the solution.
