Focused on Java interview questions and practical article sharing, covering algorithms, databases, Spring Boot, microservices, high concurrency, JVM, Docker containers, and ELK-related knowledge. Looking forward to progressing together with you.
This guide walks through deploying OnlyOffice, wiring a Vue front‑end with Element UI, implementing Spring Boot back‑end endpoints to load, edit, and save Word documents, handling token verification, and troubleshooting common deployment and configuration issues.
The article explains why Druid connection pools can fail in production and provides a step‑by‑step guide to extreme optimization, covering environment setup, core pool parameter tuning, monitoring with StatFilter and web UI, security hardening, leak detection, dynamic adjustments, and common pitfalls.
The article outlines six major challenges introduced by database sharding—cross‑database joins, pagination, distributed transactions, global ID generation, data migration, and aggregation—along with practical solutions such as binding tables, cursor pagination, Seata AT mode, Snowflake IDs, dual‑write scaling, and summary tables, providing interview‑ready answers.
The article explains the differences between database sharding, table sharding, and combined sharding, outlines interview expectations, details vertical and horizontal splitting strategies, discusses when to apply each technique, and reviews practical tools such as ShardingSphere and MyCat for Java projects.
Ant Group has open‑sourced Jeandle, a new LLVM‑powered JIT compiler for the OpenJDK HotSpot JVM that promises to boost Java performance, explains JIT and LLVM fundamentals, and outlines a detailed roadmap toward full bytecode support and advanced optimizations.
The article explains why Netty outperforms raw JDK NIO for network programming by detailing NIO's pain points, Netty's elegant Reactor design, zero‑copy and memory‑pool optimizations, built‑in codecs and pipeline, bug fixes, and its extensive ecosystem, all framed as interview knowledge.
The article explains that MinIO Community removed its web management console in February 2024, why the change was made, and provides a step‑by‑step guide to set up the Rust‑based RustFS object storage as a functional alternative, including deployment, HTTPS configuration, and a feature comparison.
The article explains how Linux limits on file descriptors, memory consumption per socket, and TCP four‑tuple theory together determine the practical maximum number of TCP connections a server or client can handle, and shows how to tune kernel parameters to increase that limit.
This article explains the distinction between Spring's BeanFactory and FactoryBean, covering their roles, core APIs, typical implementations, key differences in registration and retrieval, classic use cases, common pitfalls, and frequent interview follow‑up questions, with concrete code examples and comparison tables.
An in‑depth MySQL benchmark compares auto‑increment, UUID, and Snowflake‑style random long keys, showing how index structure, insert latency, and page fragmentation differ, and explains why auto‑increment keys usually outperform the others while also highlighting the security and lock‑contention drawbacks of sequential IDs.
