Baidu Waimai Technical Monthly Issue 7 – Operations Monitoring, Big Data Platform, BFT Algorithm, Zombie Process, Nginx+Lua Overload Protection, OLTP/OLAP, User Repurchase Prediction, Frontend Tracking, and Favicon

Dear partners, the long‑awaited Baidu Waimai Technical Monthly Issue 7 is finally released, featuring carefully selected articles and a new peer‑review mechanism to ensure high‑quality content.

Operations Monitoring from Scratch – Practical Summary

This article describes the complete process of building an operations‑focused monitoring system, including alerting at entry points, performance reporting, and degradation handling.

Big Data Platform Incubation Starting Point

Based on real experience, the article explains how an enterprise builds a big‑data ecosystem from a traditional data platform, covering team evolution, data governance, and key milestones in platform construction.

BFT Algorithm in Crawling Atlassian Wiki and Multithread Optimization

The piece details the breadth‑first traversal (BFT) algorithm, its implementation in a wiki‑crawling project, and how multithreading improves traversal efficiency.

Case Study of Zombie‑Process‑Induced Issues

The article explains the causes of zombie processes, how to locate them, and best practices to avoid them during development.

Nginx+Lua Implementation of Self‑Protection Overload

Describes how Baidu Waimai’s standard framework uses Nginx as the traffic entry point and adds a custom overload‑protection module via Lua to safeguard backend services.

OLTP and OLAP Fusion Technology Progress

Introduces Apache Phoenix, Apache Trafodion, and Splice Machine, compares their features, and briefly outlines Baidu Waimai’s own solution for OLTP/OLAP integration.

New‑User Repurchase Probability Prediction Model

Discusses the importance of identifying low‑value new users in the delivery scenario and how to predict repurchase probability to enable targeted penalties for low‑quality users and merchants.

Operation Entry Optimization Strategies

Proposes a layered design covering access, business, data, and monitoring to achieve maintainability, scalability, and extensibility, while adding timeout handling, monitoring, and contingency plans for robust service control.

Instruction‑Based and Hybrid Frontend Generic Tracking Solution

Introduces a universal front‑end tracking scheme that is widely adaptable, easy to use, and decoupled from business logic, already piloted on Baidu Waimai’s commercial platform with positive results.

Favicon – Adding Personality to Your Website

Explains what a favicon is, how it appears in browser bookmarks, and why adding a custom icon can make a website more distinctive.

The newsletter concludes with a final decorative image.