The article explains EMC vPlex's evolution, dual‑active Metro and Geo configurations, distributed cache coherence, storage virtualization, and integration with RecoverPoint, highlighting how these technologies enable high‑availability, low‑latency data access across multiple data‑center sites.
This guide shares a seasoned DBA's practical checklist covering environment awareness, hardware considerations, runtime monitoring, data security, routine operations, fault‑prevention plans, architecture insights, and the right mindset to help database professionals reduce errors and improve system stability.
This article compares popular automation tools, introduces SaltStack’s architecture and features, walks through its installation, configuration, authentication, command usage, targeting methods, common modules, and explains grains, pillars, and state files for effective large‑scale Linux operations.
This guide walks you through extending a deep‑learning object detection project to process live video streams using OpenCV, Python, and the VideoStream class, covering environment setup, command‑line arguments, model loading, frame‑by‑frame detection, FPS measurement, and performance‑boosting tips.
This step‑by‑step guide shows how to install MySQL 5.6, set up PHP 5.6 with Apache, and configure WordPress 3.9 on a CentOS 6 server, including database creation, wp‑config adjustments, and final file permissions.
This article explains how to measure a system's load capacity, identifies key factors such as bandwidth, hardware, OS and application configurations, and provides practical optimization techniques for Linux, Tomcat, Nginx, MySQL, and Redis to handle high concurrency efficiently.
Big data’s explosive growth, fueled by the internet and massive data collection, has transformed AI methods, reshaped industries, and sparked a new intelligent revolution by turning uncertainty into actionable insight, illustrating how data volume, multidimensionality, and completeness fundamentally change technology and business models.
This article reviews Java 9’s extensive new features—including the module system, jshell REPL, performance and security enhancements—explains their impact on development practices, and discusses the challenges and future directions for the Java platform.
Facebook’s HHVM team announced that, due to major compatibility issues between PHP 7 and PHP 5, they will gradually abandon PHP support in favor of the Hack language, aiming for better performance, type safety, and a dedicated ecosystem while phasing out PHP 5 compatibility.
This article provides a detailed overview of Huawei's dual-active storage solutions, describing the VIS gateway architecture, stretched VCS clusters, HyperMetro active-active implementation, network and hardware considerations, replication mechanisms, distributed locking, and performance optimizations for long-distance data-center deployments.
This tutorial demonstrates how to create a table with a Chinese analyzer, insert multilingual records, and leverage Search SQL's CONTAINS, NEAR, and FUZZY operators to perform precise, high‑performance full‑text searches beyond simple LIKE patterns.
The iQIYI NLP team applies lexical analysis, knowledge‑graph construction, tag recommendation, query understanding, voice‑assistant semantics, sentiment mining, and box‑office/view‑count prediction—leveraging weakly labeled data, CRF/CNN‑CRF models and deep learning—to enhance video comprehension, recommendation, search and commercial services across the platform.
Didi’s self‑developed “Jianmu” build system replaces Jenkins with a master‑slave architecture that colocates build scripts with source code, offering stable, high‑performance, permission‑controlled builds across multiple OSes via lightweight scheduling, workspace reuse, two‑level caching, Docker image management, and an “Env As Code” approach, while roadmap plans auto‑upgrades, elastic scaling, and further 30% efficiency gains.
This article explains how to overcome Xcode's limitations by using command‑line tools such as libimobiledevice to automatically collect crash logs from third‑party iOS apps, symbolicate them without dsym files, and analyze the resulting CrashReport structure for effective debugging.
This article explains how operation designers can navigate abundant data like PV, UV, and conversion rates by defining user behavior paths, combining key metric ratios, applying funnel analysis, and distinguishing dimensions from measures to validate and improve product performance.
Google’s ARCore SDK offers motion tracking, surface detection, and light estimation for Android, supports a limited set of phones but can be extended to unsupported devices via a reverse‑engineered class hack, and competes with Apple’s ARKit and Google’s earlier Project Tango by delivering comparable AR features without specialized hardware.
This article presents a detailed case study of Baidu Waimai's traffic analysis platform, outlining the data challenges of high dimensionality and volume, the evaluation of OLAP engines, the adoption of Apache Kylin for pre‑computation, the end‑to‑end data modeling, cube construction, incremental builds, and integration with Saiku‑Mondrian reporting, while sharing practical lessons and performance gains.
This article describes LinkedIn's network‑level MySQL query analyzer, explaining why it was needed, its three‑component architecture (agent, central server, UI), fingerprinting and hash‑map techniques, performance benchmarks, metric collection, security considerations, and the benefits it brings to database operations.
This article explains how to measure system load capacity using requests per second, identifies key factors such as bandwidth, hardware, Linux limits, and application server configurations, and provides practical optimization tips for Nginx, Tomcat, MySQL, Redis, and load‑balancing architectures.
This article interviews Baidu’s chief architect Ge Jun about the origins, design principles, performance advantages, and open‑source release of the high‑performance C++/Java RPC framework brpc, highlighting its extensive internal use, architectural features, and future roadmap.
