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141854 articles · Page 6817 of 7093
Efficient Ops
Efficient Ops
Sep 19, 2016 · Operations

How Ctrip Revolutionized IDC Management with Visual Automation

Ctrip’s rapid internet growth forced a massive data‑center expansion, prompting the company to evolve from self‑built facilities to hybrid vendor‑leased IDC, and ultimately to a visual management platform that automates monitoring, space planning, device intake, and operational workflows, dramatically improving efficiency and reducing manual effort.

CMDBVisualizationinfrastructure
0 likes · 13 min read
How Ctrip Revolutionized IDC Management with Visual Automation
MaGe Linux Operations
MaGe Linux Operations
Sep 19, 2016 · Databases

Master Redis Cluster Setup: From Basics to Scaling Nodes

Learn how to build and manage a Redis cluster on Linux, covering the rationale for clustering, hash slot mechanics, node configuration, adding/removing nodes, resharding, and integrating master‑slave replicas, with step‑by‑step commands and practical examples.

DatabaseDevOpsLinux
0 likes · 11 min read
Master Redis Cluster Setup: From Basics to Scaling Nodes
ITPUB
ITPUB
Sep 19, 2016 · Fundamentals

Understanding Character Encoding: From ASCII to Unicode and UTF‑8

This article explains the fundamentals of character encoding, covering the evolution from the 7‑bit ASCII standard to Chinese GB2312, the development of Unicode and UTF‑8, and provides practical guidance for handling these encodings in Windows and Linux C programs, including a sample UTF‑8 detection function.

ASCIIC ProgrammingGB2312
0 likes · 13 min read
Understanding Character Encoding: From ASCII to Unicode and UTF‑8
Ctrip Technology
Ctrip Technology
Sep 19, 2016 · Product Management

Fundamentals and Implementation of A/B Testing at Qunar

This article explains the basic principles, practical demo, platform architecture, statistical validation, sample size estimation, and reporting workflow of A/B testing used at Qunar to evaluate advertising strategies and product features, illustrating how data‑driven experiments are designed, executed, and analyzed.

A/B TestingData Platformexperiment design
0 likes · 9 min read
Fundamentals and Implementation of A/B Testing at Qunar
Ctrip Technology
Ctrip Technology
Sep 19, 2016 · Artificial Intelligence

Personalized Demand Prediction and Ranking for Qunar's "Guess You Like" Feature

This article describes Qunar's personalized demand prediction system for the "Guess You Like" card, detailing how user‑demand associations are mined via rule engines, collaborative filtering, LBS and manual rules, and how ranking models evolve from subjective Bayes to RankBoost and LambdaMart, with experimental evaluation and future LSTM plans.

AIMachine LearningRanking
0 likes · 10 min read
Personalized Demand Prediction and Ranking for Qunar's "Guess You Like" Feature
ITPUB
ITPUB
Sep 19, 2016 · Databases

How Oracle Data Guard’s Maximum Protection Mode Handles Failures and Recovery

This article demonstrates how to enable Oracle Data Guard’s Maximum Protection mode, examines the behavior of primary and standby databases when the standby connection is broken, and walks through the resulting errors, forced shutdown, and step‑by‑step recovery back to normal operation.

Data GuardMaximum ProtectionOracle
0 likes · 12 min read
How Oracle Data Guard’s Maximum Protection Mode Handles Failures and Recovery
Alibaba Cloud Developer
Alibaba Cloud Developer
Sep 19, 2016 · Backend Development

What Alibaba Architects Learned at SpringOne 2016: From ReactiveX to Serverless

Alibaba architects attended the SpringOne conference in Las Vegas, sharing insights on emerging technologies such as ReactiveX, Ratpack, Java 9 modules, Spring 5 and 1.4, Zipkin, XRebel, PaaS platforms, serverless computing, cloud‑native principles, Agile, DevOps, and microservices, highlighting both global trends and challenges for Chinese cloud providers.

DevOpsPaaSServerless
0 likes · 9 min read
What Alibaba Architects Learned at SpringOne 2016: From ReactiveX to Serverless
Model Perspective
Model Perspective
Sep 19, 2016 · Fundamentals

Designing an Engaging Intro to Mathematical Modeling for High Schoolers

After two introductory sessions, the instructor reflects on teaching a high‑school mathematical modeling course, describing the curriculum progression from basic equations to advanced models, the challenges of selecting materials, student responses, and plans for resources and continuous professional development.

Curriculum Designhigh schoolmathematical modeling
0 likes · 5 min read
Designing an Engaging Intro to Mathematical Modeling for High Schoolers
DevOps
DevOps
Sep 19, 2016 · Fundamentals

Microsoft Tops GitHub Open‑Source Contribution Rankings Under CEO Satya Nadella

Under CEO Satya Nadella, Microsoft has dramatically embraced open source, climbing to the top of GitHub’s contribution leaderboard with 16,419 contributions—surpassing Facebook, Docker, Angular, and Google—while opening key technologies such as .NET, Chakra, MSBuild, Xamarin, and PowerShell to the community.

CommunityGitHubMicrosoft
0 likes · 3 min read
Microsoft Tops GitHub Open‑Source Contribution Rankings Under CEO Satya Nadella
Efficient Ops
Efficient Ops
Sep 18, 2016 · Operations

Who Was the World’s First SRE? Uncovering Margaret Hamilton’s Legacy

This article explores the origins of Site Reliability Engineering, highlights Margaret Hamilton as the likely first SRE through her work on NASA’s Apollo program, and draws lessons on reliability, disaster prevention, and the evolution of modern SRE practices.

Apollo programMargaret HamiltonSRE
0 likes · 10 min read
Who Was the World’s First SRE? Uncovering Margaret Hamilton’s Legacy
MaGe Linux Operations
MaGe Linux Operations
Sep 18, 2016 · Backend Development

Building a Minimal Async Python Web Framework from Scratch

This article walks through the design and implementation of a lightweight asynchronous Python web framework, covering its core components such as HTTPServer, HTTPConnection, request parsing, routing, timeout handling, and the App class, while explaining design choices, limitations, and testing strategies.

BackendHTTPPython
0 likes · 17 min read
Building a Minimal Async Python Web Framework from Scratch
360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Sep 18, 2016 · Artificial Intelligence

How Linear Regression Can Tame Your Nighttime Alert Fatigue

This article explores how historical monitoring alerts can be analyzed and predicted using linear regression, guiding operations engineers to preprocess data, build regression models, and forecast future alert trends to reduce manual alarm handling and improve system stability.

Machine LearningMonitoringalert prediction
0 likes · 8 min read
How Linear Regression Can Tame Your Nighttime Alert Fatigue
360 Quality & Efficiency
360 Quality & Efficiency
Sep 18, 2016 · Mobile Development

Performance Testing Metrics and Sampling Strategy for Android Apps

The article outlines a comprehensive set of Android app performance metrics, device coverage, a non‑root sampling strategy using dumpsys commands, shell‑based data collection, and Python‑driven HTML reporting, providing practical guidance and reference implementations for mobile developers.

AndroidShell scriptperformance testing
0 likes · 4 min read
Performance Testing Metrics and Sampling Strategy for Android Apps
Architecture Digest
Architecture Digest
Sep 18, 2016 · Fundamentals

Smart Audio Recorder Based on Volume Threshold – Implementation and Code

This article describes a C# program that continuously captures microphone audio, uses volume thresholds derived from Fourier analysis to automatically start and stop recording, and provides the full configuration and source code needed to build a smart recorder for capturing dream speech.

C++Programming TutorialSignal Processing
0 likes · 7 min read
Smart Audio Recorder Based on Volume Threshold – Implementation and Code
Qunar Tech Salon
Qunar Tech Salon
Sep 18, 2016 · Operations

Analyzing Nginx Access Logs for Traffic, Performance, and Optimization

This article explains how to extract valuable performance and traffic insights from Nginx access logs using shell commands and awk, covering request volume, peak rates, bandwidth usage, slow‑query detection, URL normalization, and practical optimization recommendations for web operations.

Performance Monitoringawklog analysis
0 likes · 13 min read
Analyzing Nginx Access Logs for Traffic, Performance, and Optimization