This guide introduces the tldr tool that simplifies Linux and macOS command usage by providing concise examples, explains how to install its various language clients, and demonstrates practical command snippets for ssh and curl, helping users avoid lengthy man pages.
This article explains a practical approach to implementing hot‑update in Unity games by injecting Lua‑based patches into C# methods using SLua and the NRefactory library, detailing the execution environment, code‑injection process, Lua patch creation, and a reusable MethodInjector class.
This article examines Oracle's Reference Partition feature, demonstrating through a series of SQL experiments how it reduces query costs, improves execution plans, and streamlines partition management, while also highlighting its limitations when indexes are involved.
PayPal reports that migrating its high‑traffic web services from Java to Node.js doubled development speed, cut code size by a third, reduced file count by 40%, and achieved roughly twice the request throughput and 35% faster page rendering, highlighting the benefits of full‑stack JavaScript.
This tutorial walks you through the complete Linux installation process, covering BIOS configuration, booting from the installation CD, language and keyboard selection, disk partitioning, timezone and root account setup, package customization, and final system reboot, all illustrated with screenshots.
This article explains how Zone.js, the core Angular 2 component inspired by NodeJS Domain and Dart Zone, can be used to manage execution contexts for both synchronous and asynchronous code, enabling advanced scenarios such as running different jQuery versions side‑by‑side in a single application.
This article explains how to build location‑based "nearest" and range queries for O2O applications using MySQL, covering interval search with bounding boxes, Geohash indexing, distance filtering, sorting, and pagination, and provides complete Java and SQL code examples.
This article details JD's One‑Yuan Grab Treasure platform redesign, covering business growth drivers, database sharding estimation, hash‑plus‑range routing implementation, Elasticsearch aggregation, Canal‑based sync, historical data migration, and downgrade mechanisms to ensure high‑throughput, reliable order processing during massive sales events.
This article outlines ten essential facts about Docker—from its role as a software packaging and deployment tool and its roots in long‑standing container technology, to its cross‑platform support, performance advantages, rapid evolution, competition, and the cautions enterprises should consider before adopting it.
This article details a step‑by‑step investigation of a two‑node Oracle RAC environment where node 2 repeatedly rebooted, covering time‑synchronization checks, database and network heartbeat analysis, hardware diagnostics, and the final resolution through firmware and memory replacement.
An overview of how web system architecture has progressed from early single‑machine setups using PC servers to multi‑machine clusters, business and application splitting, distributed caching, CDN, load balancing, and service‑oriented designs, illustrating the continuous evolution toward scalable, resilient backend infrastructures.
This article demonstrates how PostgreSQL's Partial Index feature can be used together with BTREE and BRIN indexes to dramatically reduce storage while maintaining high query performance on both low‑frequency and high‑frequency data in a heavily skewed dataset.
eBay reduced HTTP requests and improved caching by splitting its monolithic JS/CSS bundles into shared core libraries, domain‑specific common resources, and page‑specific assets, creating a three‑tier packaging strategy that balances load, consistency, and manageability across its multi‑domain site.
This step‑by‑step guide shows how to install the required CIFS utilities, configure host name resolution, create a credentials file, edit /etc/fstab, and mount a Windows network share so it remains available after Linux reboots.
This tutorial introduces a wide range of Linux command‑line network monitoring utilities—such as nethogs, nload, slurm, iftop, collectl, netstat, netwatch, speedometer, cbm, bmon, tcpdump, and ntopng—explaining their purpose, basic usage commands, and installation methods for various distributions.
This article experimentally compares PostgreSQL 9.5's BRIN and BTREE indexes across seven data distributions, revealing that BRIN uses up to 6,848 times less storage while BTREE consistently outperforms BRIN in query speed, with the gap narrowing as data repetition increases.
This guide presents twenty indispensable Linux/Unix command‑line tools—from top and vmstat to Nagios and Collectl—that enable system and network administrators to monitor processes, memory, I/O, network traffic, and overall performance, helping quickly identify and resolve performance issues across any Linux distribution.
This article describes how to design and implement a closed‑loop data platform using Python, Java, and Spark stacks, covering data acquisition, structuring, mining, visualization, real‑time processing, and deployment with Docker, ELK, Kafka, and cloud services, illustrated by three industry case studies.
The Meitu Technology Salon’s second offline session, held on July 24 2016, gathered senior R&D engineers to explore practical Golang applications through three case studies—Meitu’s high‑performance services, Panda TV’s live‑streaming architecture overhaul, and NetEase’s P2P cache system redesign—offering insights and networking for 100 participants.
A product‑manager’s deep dive shows how Pokémon GO leverages the Hook Model—trigger, action, variable reward and investment—to create nostalgic triggers, social connection, outdoor activity, and compelling reward loops that keep millions of players hooked worldwide.
