Deploy and Use rtty for Web‑Based Remote Linux Terminal Access

This guide explains what rtty is, lists its key features, and provides step‑by‑step instructions for installing dependencies, cloning the repository, building the server, configuring devices, generating tokens, and accessing Linux terminals securely through a web browser.

C clientGo ServerLinux

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Deploy and Use rtty for Web‑Based Remote Linux Terminal Access

Meituan Technology Team

Apr 21, 2022 · Databases

Meituan's Cost-Based Optimizer for Slow Query Index Recommendation

The article explains how Meituan uses MySQL's cost‑based optimizer to analyze slow queries, generate virtual index candidates, evaluate their costs with detailed statistics, and deploy a recommendation system that validates, tracks, and governs index suggestions to reduce CPU/IO waste and prevent database failures.

Cost ModelDatabase OptimizationFakeindex

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Meituan's Cost-Based Optimizer for Slow Query Index Recommendation