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143493 articles · Page 6627 of 7175

Nov 8, 2017 · Databases

Achieving Zero Data Loss and High Availability in Finance with PostgreSQL Replication

This article explains how PostgreSQL's streaming replication can provide zero data loss, high availability, and disaster‑recovery for financial institutions, detailing feedback and consistency metrics, architecture simplifications, configuration examples, performance impact, failover rules, flexibility, and cost considerations.

Financial ServicesPostgreSQLReplication

0 likes · 10 min read

Achieving Zero Data Loss and High Availability in Finance with PostgreSQL Replication

Architecture Digest

Nov 8, 2017 · Backend Development

Implementing Distributed Locks with Redis: Commands, Java Implementations, and Lua Script Optimizations

This article explains how to build a reliable distributed lock using Redis by introducing essential Redis commands, presenting initial Java pseudocode, addressing race‑condition pitfalls, improving the design with GETSET and Lua scripts, and providing complete, production‑ready Java implementations with unlock safety fixes.

backenddistributed-locklua

0 likes · 16 min read

Implementing Distributed Locks with Redis: Commands, Java Implementations, and Lua Script Optimizations

网易UEDC

Nov 8, 2017 · Mobile Development

How to Build a Professional Mobile Interaction Draft: Step‑by‑Step Guide

This article explains what a mobile interaction draft should contain, how to structure it based on product information architecture, design each page with clear guidelines, apply a grid system for alignment, write readable design notes, and offers practical tips for creating effective documentation.

AxureDesign GuidelinesMobile Design

0 likes · 8 min read

How to Build a Professional Mobile Interaction Draft: Step‑by‑Step Guide

Qunar Tech Salon

Nov 8, 2017 · Operations

Evolution of Ele.me's Operations Infrastructure: From 1.0 to 2.0 – Standardization, Automation, and Data‑Driven Management

The article recounts Ele.me's rapid growth and the resulting operational challenges, describing how the company progressed from ad‑hoc 1.0 practices to a standardized, automated 2.0 infrastructure built on ZStack private cloud, fine‑grained operations, and data‑driven management to improve quality, efficiency, and cost.

MonitoringResource Managementstandardization

0 likes · 21 min read

Evolution of Ele.me's Operations Infrastructure: From 1.0 to 2.0 – Standardization, Automation, and Data‑Driven Management

Alibaba Cloud Developer

Nov 8, 2017 · Artificial Intelligence

How Alibaba’s AI Designer “Luban” Generates 400 Million Double‑11 Banners in Seconds

Alibaba’s AI system “Luban” transforms massive Double‑11 banner creation by learning designers’ styles, using a three‑module architecture—style learning, actuator, and evaluation network—to produce up to 8,000 unique posters per second, while still relying on human‑AI collaboration.

AIAlibabaPoster Automation

0 likes · 9 min read

How Alibaba’s AI Designer “Luban” Generates 400 Million Double‑11 Banners in Seconds

dbaplus Community

Nov 7, 2017 · Databases

What’s New in the 2017 DB‑Engines Rankings? Latest Database Releases and Features

The October 2017 DBAplus Newsletter summarizes the newest releases across RDBMS, NoSQL, NewSQL, time‑series, big‑data and domestic databases, highlighting key features, performance improvements, and ecosystem updates while providing links to official documentation and source repositories.

DB-EnginesNewSQLNoSQL

0 likes · 17 min read

What’s New in the 2017 DB‑Engines Rankings? Latest Database Releases and Features

System Architect Go

Nov 7, 2017 · Backend Development

Exporting Excel Files on the Server with js-xlsx and exceljs

This article explains how to generate and serve XLSX files from a backend server using the JavaScript libraries js-xlsx and exceljs, covering data preparation, server implementation, and styling options for rows, columns, and cells.

Data ExportExcelExcelJS

0 likes · 3 min read

Exporting Excel Files on the Server with js-xlsx and exceljs

21CTO

Nov 7, 2017 · Big Data

What 3.3 Million Zhihu Users Reveal About Gender, Location, and Careers

Analyzing over 3.2 million publicly available Zhihu profiles collected via a distributed Python crawler, this report uncovers gender balance near 1:1, top residential cities, dominant occupations, university participation, and the most followed and active contributors, while noting data limitations and temporal relevance.

User Demographicsdata analysiszhihu

0 likes · 11 min read

What 3.3 Million Zhihu Users Reveal About Gender, Location, and Careers

21CTO

Nov 7, 2017 · Fundamentals

How to Become a 10× Developer: Master the What, Why, and When

The article explains how developers can boost their productivity tenfold by focusing on three core questions—what to build, why it matters, and when to act—while emphasizing communication, prioritization, and a product‑mindset over sheer coding skill.

10x developerTeam Collaborationdeveloper efficiency

0 likes · 10 min read

How to Become a 10× Developer: Master the What, Why, and When

AI Large-Model Wave and Transformation Guide

Nov 7, 2017 · Fundamentals

Master Python’s Basic Operators and Comments with Simple Examples

This tutorial walks through Python’s arithmetic and comparison operators, shows exact code snippets and their outputs, explains why Boolean results appear as True or False, and then introduces single‑line and multi‑line comment syntax with clear demonstrations.

BasicsPythonTutorial

0 likes · 4 min read

Master Python’s Basic Operators and Comments with Simple Examples

DevOps Engineer

Nov 7, 2017 · Fundamentals

How to Self‑Study Software Testing: Books, Videos, Crowdsourced Platforms, and Learning on the Job

This article outlines practical ways for beginners to self‑learn software testing, including recommended e‑books, video courses, participation in crowdsourced testing platforms, and gaining experience directly through work, while also offering tips for staying motivated and advancing in the field.

Software Testingcareer developmentcrowdsourced testing

0 likes · 5 min read

How to Self‑Study Software Testing: Books, Videos, Crowdsourced Platforms, and Learning on the Job

MaGe Linux Operations

Nov 7, 2017 · Operations

10 Little‑Known Linux Commands That Supercharge Your Workflow

This article introduces a collection of lesser‑known Linux commands—such as sudo !!, python -m SimpleHTTPServer, mtr, Ctrl+x+e, nl, shuf, ss, last, curl ifconfig.me, tree, and pstree—explaining their purpose and providing concise usage examples to help both beginners and seasoned administrators work more efficiently.

ShellSystem AdministrationUNIX

0 likes · 8 min read

10 Little‑Known Linux Commands That Supercharge Your Workflow

MaGe Linux Operations

Nov 7, 2017 · Fundamentals

Watch Python Code Run Like a Movie with Livepython

Livepython is a lightweight desktop tool that visualizes Python program execution and variable states in real time, offering simple play‑pause and speed controls, compatibility details, and an MIT license, making it easier for learners to understand code flow than traditional debuggers.

Tooleducationlivecoding

0 likes · 3 min read

Watch Python Code Run Like a Movie with Livepython

Zhuanzhuan Tech

Nov 7, 2017 · Backend Development

Best Practices for Developing Scalable, High‑Performance Backend Services

This article outlines essential principles for building extensible, high‑performance online services, covering interface design, coding standards, caching strategies, and logging practices to reduce bugs and simplify development and maintenance.

Servicebackendbest-practices

0 likes · 9 min read

Best Practices for Developing Scalable, High‑Performance Backend Services

360 Zhihui Cloud Developer

Nov 7, 2017 · Backend Development

Mastering Go Channels: Guarantees, States, and Data Signals Explained

This article delves into Go's channel mechanism, explaining its three core signal properties—delivery guarantee, state, and data presence—while providing clear code examples for unbuffered, buffered, and context‑based channels to help developers write reliable concurrent programs.

ChannelsGo languageGoroutine

0 likes · 12 min read

Mastering Go Channels: Guarantees, States, and Data Signals Explained

Baixing.com Technical Team

Nov 7, 2017 · Fundamentals

Why Effective Code Reviews Are Essential for Quality, Knowledge Sharing, and Team Trust

This article explains the benefits of code reviews—early bug detection, improved code quality, knowledge transfer, and stronger team trust—while offering practical tips on what to look for and how to conduct reviews efficiently.

Team Collaborationbest-practicescode quality

0 likes · 8 min read

Why Effective Code Reviews Are Essential for Quality, Knowledge Sharing, and Team Trust

JD.com Experience Design Center

Nov 7, 2017 · Frontend Development

How to Deploy ES2015+ JavaScript in Production Without Unnecessary Polyfills

This article explains how modern browsers that support ES modules can load native ES2015+ JavaScript while older browsers receive a compiled ES5 fallback, detailing conditional polyfill loading, webpack and Babel configurations, script tag usage, performance benefits, and practical implementation steps.

BabelES2015Polyfills

0 likes · 13 min read

How to Deploy ES2015+ JavaScript in Production Without Unnecessary Polyfills

ITPUB

Nov 7, 2017 · Big Data

Which Tech Giant Dominates Open‑Source on GitHub? 2017 Contribution Analysis

This article examines 2017 GitHub data to compare how major tech companies like Microsoft, Google, Amazon, and others contribute to open‑source projects, revealing surprising rankings, star counts, and the methodology behind the analysis using Google BigQuery and custom SQL queries.

GitHubGoogle BigQuerySQL

0 likes · 8 min read

Which Tech Giant Dominates Open‑Source on GitHub? 2017 Contribution Analysis

ITPUB

Nov 7, 2017 · Databases

Why MySQL Ignored My Index and How to Speed Up Periodic Deletion Queries

The article examines why a MySQL DELETE statement with a composite index on biz_date and status still triggers a full‑table scan, shows EXPLAIN output, tests forced index usage, and ultimately demonstrates that narrowing the date range in the query dramatically reduces rows examined and improves performance.

MySQLQuery OptimizationSQL

0 likes · 7 min read

Why MySQL Ignored My Index and How to Speed Up Periodic Deletion Queries

Architecture Digest

Nov 7, 2017 · Databases

Event Ordering, Logical Clocks, TrueTime, and Hybrid Logical Clock in Distributed Systems

The article explains how distributed systems achieve linearizability by using logical clocks, TrueTime, Hybrid Logical Clocks, and Timestamp Oracle mechanisms to establish a global ordering of events despite clock skew and network delays.

LinearizabilityLogical ClockTrueTime

0 likes · 13 min read