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Java Backend Technology
Java Backend Technology
Jan 26, 2022 · Backend Development

How to Simulate 100 Million WeChat Red‑Packet Requests on a Single Server

This article details a practical backend engineering experiment that reproduces the massive load of 100 billion WeChat red‑packet requests by simulating one million concurrent users on a single machine, covering target metrics, hardware/software choices, architecture, implementation steps, performance testing, and analysis of the results.

Backend ArchitectureGoLoad Simulation
0 likes · 18 min read
How to Simulate 100 Million WeChat Red‑Packet Requests on a Single Server
Qunar Tech Salon
Qunar Tech Salon
Aug 22, 2019 · Big Data

Performance Optimization Practices for Meituan's Hadoop YARN Fair Scheduler

This article details Meituan's experience optimizing the Hadoop YARN fair scheduler, covering background challenges, architectural components, resource abstractions, scheduling flow, performance metrics, a series of code‑level optimizations, stability strategies for production rollout, and future directions for large‑scale cluster scheduling.

Big DataFair SchedulerLoad Simulation
0 likes · 23 min read
Performance Optimization Practices for Meituan's Hadoop YARN Fair Scheduler