OpenResty Official Blog

CDN for Live Streaming: Surviving Peak Events Without Peak-Event Bills

2026-07-20T00:00:00.000Z

Why live streams crash at peak: running day-to-day doesn’t mean surviving the peak
How a private CDN turns peak stability from probability into certainty
Live streaming CDN cost comparison: surviving the peak isn’t paying for the peak
The real cost of a private CDN: not the same as building from scratch
Beyond delivery: what a live streaming scenario needs from the same gateway layer
FAQ

OpenResty XRay AI Assistant: Making Every Piece of Analysis Data Speak

2026-07-14T00:00:00.000Z

How Is It Different from Pasting a Report into ChatGPT?
Three Typical Scenarios
On Reliability, Honestly
FAQ: Can AI Really Read a Flame Graph?

Building a Self-Hosted Live Streaming CDN for HLS with OpenResty Edge

2026-07-08T00:00:00.000Z

Why live HLS breaks a naive caching setup
Building it on OpenResty Edge: two page rules with opposite TTLs
The most critical step: the Use stale proxy cache action
A shield tier with gateway partitions: collapsing to one fetch network-wide
Verifying the configuration and load testing
FAQ

OpenResty Private Libraries: High-Performance Lua & Nginx Modules

2026-07-08T00:00:00.000Z

The Full Catalog
What’s Inside, by Scenario
How Licensing Works
FAQ

OpenResty Tutorial: 7-Step Hands-On Guide from Hello World to Production

2026-07-03T00:00:00.000Z

This OpenResty tutorial series takes you from a fresh Linux server to a working Nginx + Lua application in seven hands-on steps — no prior Lua experience required.

Install OpenResty - Complete Setup Guide for All Platforms

2026-06-30T00:00:00.000Z

Supported Platforms
Quick Start (Ubuntu / Debian)
Platform Installation Guides
ARM64 / Aarch64
Alpine Linux
macOS & Building from Source
Verify Your Installation
FAQ

OpenResty 1.31.1.1 Released

2026-06-05T00:00:00.000Z

Version highlights
Full Changelog
Feedback

OpenResty 1.29.2.5 Released

2026-05-25T00:00:00.000Z

Version highlights
Full Changelog
Feedback

OpenResty 1.29.2.4 released

2026-05-20T00:00:00.000Z

Version highlights
Full Change logs

Taming Internal Traffic Chaos with OpenResty Edge

2026-05-18T00:00:00.000Z

The essential differences between north-south and east-west traffic governance
Four engineering pain points in the microservices deep end
Mesh vs. centralized internal gateway: a route comparison and OpenResty Edge’s engineering positioning
A three-phase progressive rollout path and pragmatic recommendations

OpenResty XRay Version 26.5.11. Now Available

2026-05-12T00:00:00.000Z

Key Highlights
Other Important Updates

OpenResty Edge Version 26.6.8 Now Available

2026-05-08T00:00:00.000Z

Core Highlights
Enhanced Features & Increased Flexibility
Improved Usability & Observability
Key Fixes and Stability Enhancements
How to Upgrade?

Built-In DDoS Defense for OpenResty Edge—Without Another Appliance or a Second Ops Surface

2026-05-07T00:00:00.000Z

The impossible triangle of DDoS defense
OpenResty Edge design choices: achieving all three goals at once
Performance as engineering fact, not a slogan
Automation as a prerequisite for DDoS defense, not a nice-to-have
Observability: transparency is the foundation of trust
Building a built-in, adaptive defense stack

OpenResty Edge Data Protection: From Scheduled Backups to Automatic Failover

2026-05-06T00:00:00.000Z

First line: scheduled backups and off-host sync
Second line: primary–standby streaming replication
Third line: automatic failover cluster
Comparing the three approaches and selection guidance

Automating Kubernetes Gateway Node Lifecycle with OpenResty Edge

2026-04-23T00:00:00.000Z

The gateway dilemma in the Kubernetes era: static control models vs. cloud-native reality
Capability one: automated lifecycle management for gateway nodes
Capability two: multiple K8s clusters and unified control
Capability three: a two-tier upstream system
Summary

Managing OpenResty Edge Configuration with YAML and Git: A Practical Guide to `edge2yaml`

2026-04-22T00:00:00.000Z

What is edge2yaml
Usecase
edge2yaml vs. OpenResty Edge Admin’s Native Capabilities

lua-cjson Too Slow? jit.cjson Speeds Up JSON Encoding in OpenResty 18x

2026-04-17T00:00:00.000Z

Where Exactly Is the Performance Ceiling?
Common Workaround Strategies and Their Limitations
Why Custom Development or Hacking Existing Libraries is a Bad Idea
Seeking a More Direct Breakthrough
Infrastructure-Level Optimization: jit.cjson
Why the Official Solution is the Safer Bet
Minimal Adoption Cost

Minify HTML, CSS & JS Inside Nginx: OpenResty's 120 MB/s Streaming Minifiers

2026-04-07T00:00:00.000Z

When You Can’t Touch the Build Pipeline
Why a Regex Won’t Cut It
Three Approaches That Almost Work
A Streaming FSM for Each Language, Compiled to Native Code
Five-Minute Setup: A Configuration Example
Four Things to Know Before Going Live

OpenResty 1.29.2.3 Released

2026-03-26T00:00:00.000Z

Version highlights
Full Changelog
Feedback

Binary Evidence-Driven Vulnerability Scanning: Eliminating False Positives with OpenResty XRay

2026-03-24T00:00:00.000Z

Why Version-Matching Scans Fail: Three Compounding Costs
How XRay Scans Binaries Directly: The Evidence-First Model
Case Study: Detecting Dual OpenSSL Versions on Rocky Linux
Building a Sustainable Scanning Practice on Precision Evidence

How OpenResty XRay Solved P99 Latency Jitter in a D-lang Order Service

2026-03-17T00:00:00.000Z

Analyzing GC Traps and Business Hotspots in the Flame Graph
Optimization Roadmap: Why Sequence Is More Important Than Action
Conclusion: From Code Logic to Runtime Reality

OpenResty XRay Version 26.2.1. Now Available

2026-03-13T00:00:00.000Z

Key Highlights
Stability and Usability Enhancements

End-to-End Client Real IP Passthrough in OpenResty Edge

2026-03-05T00:00:00.000Z

Use Cases and Topology
IP Passthrough Methods Overview
OpenResty Edge Configuration
Key Variables
Page Rules
Verification

How OpenResty XRay Enables Full-Stack Dynamic Tracing in Production

2026-03-03T00:00:00.000Z

Where Do Existing Dynamic Tracing Frameworks Fall Short in Production?
How Did OpenResty XRay Rethink Dynamic Tracing at the Architecture Level?
What Is a Full-Stack Flame Graph and How Do You Use It to Diagnose Performance Bottlenecks?
How Is OpenResty XRay Expanding Its Observability Coverage Over Time?
Further Reading and Real-World Case Studie

OpenResty 1.29.2.1 Released

2026-03-03T00:00:00.000Z

Version highlights
Full Changelog
Feedback

OpenResty Edge: Private CDN, Universal Gateway & WAF in One Platform

2026-02-24T00:00:00.000Z

What Is OpenResty Edge? Architecture Overview
OpenResty Edge vs. Traditional Stack: 4 Problems Solved
Universal Gateway & Load Balancing: Dynamic Routing for Microservices
Real-World Case Studies: OTA, News, and SaaS Deployments

Introduction to OpenResty XRay

2026-02-10T00:00:00.000Z

Core Philosophy: A Tracing Engine Built for the Unknown
Turning Noise into Signal: How XRay Demystifies Production Issues
Empowering Engineering Teams in Cloud-Native Reality
Built on a Robust, Open Technological Foundatione
Real-World Success Stories

OpenResty Edge Design Notes: Bringing Global Traffic Scheduling Back to the Application Layer

2026-01-27T00:00:00.000Z

Traffic Instability Is Not a Configuration Problem
Why Global Optimization Breaks Down Under Real Traffic
Control Requires Feedback, Not Faster Reactions
From Human-in-the-Loop Alerts to Deterministic Traffic Control

lua-resty-kafka Blocking Your Nginx Workers? Meet lua-resty-kafka-fast

2026-01-19T00:00:00.000Z

Three Common Anti-Patterns We See in Production
What is lua-resty-kafka-fast
lua-resty-kafka vs lua-resty-kafka-fast
What This Changes at the Architecture Level
FAQ

OpenResty Edge Version 25.12.5-1 Now Available

2026-01-16T00:00:00.000Z

Key Highlights
Key Optimizations
Key Fixes and Stability Enhancements
How to upgrade?

Hunting Down a Silent Memory Leak in OpenResty Without a Reboot

2026-01-13T00:00:00.000Z

A Complete Dissection of a Production Memory Leak
Why Are These Problems Nearly Unsolvable?
A System Transformation
When Performance Issues Go Beyond Just Tools

Anatomy of a 15x Performance Drop: A 90k to 6k QPS Root Cause Analysis with OpenResty XRay

2025-12-23T00:00:00.000Z

The 93% Performance Drop: Uncovering the Observability Blind Spot
OpenResty XRay Uncovers Connection Reuse Issues
Comparative Analysis Reveals Compilation Option Issues
Impact of Compiler Options on Instruction Execution Performance

TLS Session Resumption in Nginx Clusters: Zero-Downtime Key Rotation

2025-12-19T00:00:00.000Z

Why Session Ticket Key Management Is Harder Than It Looks
How lua-resty-tls-session Rotates Session Ticket Keys Without Restarts
Comparing the Three Approaches
Quantifying Latency Reduction and Uptime Gains
FAQ

An Introduction to the Programmable WAF of OpenResty Edge

2025-12-15T00:00:00.000Z

High-Performance Programmatic WAF
Beyond WAF: A Unified Architecture
From Defensive Tools to Core Assets

Fix LuaJIT RSS Memory Leak in OpenResty: Stop OOM Kills Without Restarts

2025-12-04T00:00:00.000Z

What Is the LuaJIT Pseudo Memory Leak?
Diagnosing the Problem with Real Production Data
Why Standard Fixes Don’t Work
How LuaJIT-plus Fixes This at the Allocator Level
Production Impact After Deployment

Building "Less is More" Event-Driven Operations with OpenResty Edge Webhook

2025-12-03T00:00:00.000Z

From Data Deluge to Critical Signals
Why is Edge Webhook So Efficient and Secure?
Building a Less is More Precise Operations Ecosystem

How We Pinpointed a 244ms Latency Spike in a 500k QPS OpenResty Gateway

2025-11-18T00:00:00.000Z

When Traditional Monitoring Fails to Pinpoint the Root Cause
From Heuristics to the Power of Dynamic Observability
Quantifiable Engineering Efficiency and Resource Optimization Results
Building Continuous Performance Observability

Open Source OpenResty vs. OpenResty Edge: Key Differences

2025-11-17T00:00:00.000Z

Open Source vs. OpenResty Edge at a Glance
When Open Source Hits Its Limits: 6 Real Scenarios
Choosing the Right Path for Your Infrastructure

Private CDN Solution: Enterprise Edge Architecture | OpenResty Edge

2025-11-11T00:00:00.000Z

The Breaking Point: When Public CDNs Fail the Enterprise
The CDN Landscape: Public CDN vs. DIY Open Source vs. Commercial Private CDN
From OpEx to CapEx: The Business Case for a Private CDN
Why OpenResty Edge? Evaluating an Enterprise Private CDN Platform
The Edge Is Your Competitive Advantage — Not a Commodity
Frequently Asked Questions

How OpenResty XRay Pinpointed Java Memory Issues

2025-11-10T00:00:00.000Z

Background and Problem
Systematic Diagnostic Path: From Leak to Jitter
Diagnostic Efficiency and System Improvements
Why Choose OpenResty XRay for Java Application Memory Analysis?

When a "Black Box" Plugin Consumes 45% CPU: How We Pinpointed Lua Line 93 Without Source Code

2025-11-10T00:00:00.000Z

When perf Meets the Black Box
From Sampling to Full-Stack Dynamic Tracing
Uncovering the Evidence Trail
From What happene to Why
Summary

OpenResty Edge Version 25.9.17 Now Available

2025-10-31T00:00:00.000Z

Core Highlights
Enhanced Features & Increased Flexibility
Improved Usability & Observability
Key Fixes and Stability Enhancements
How to Upgrade?

OpenResty XRay Version 25.10.11 Now Available

2025-10-31T00:00:00.000Z

Three Key Highlights
Enhanced Diagnostic Accuracy and Stability
Usability and Security Enhancements

How to Pinpoint the Hidden Cost of Gzip Configuration with OpenResty XRay

2025-10-27T00:00:00.000Z

Performance Issues Often Lurk in Unexpected Places
How OpenResty XRay Uncovers the Root Cause
Quantifying Performance Bottlenecks
From Experience to Methodology

Performance Takes a Leap Forward: OpenResty Edge Now Supports zstd Compression

2025-10-20T00:00:00.000Z

The Evolution of Compression Algorithms
What is Zstandard (zstd)
Why Zstandard is Particularly Well-Suited for OpenResty Edge
How to Enable Zstandard (Zstd) Compression in OpenResty Edge

How OpenResty Edge Automates SSL/TLS Certificate Management with ACME Protocol

2025-10-15T00:00:00.000Z

What is the ACME protocol?
Why we need the ACME protocol?
How to automatically provision certificates in OpenResty Edge via ACME protocol

How to use OpenResty XRay to quickly pinpoint memory leaks in C++ process

2025-10-11T00:00:00.000Z

Technical Predicament and Initial Diagnosis
Flame Graphs: Pinpointing Memory Leak Hotspots
From Reactive to Proactive: XRay’s New Approach to Troubleshooting
The OpenResty XRay Closed-Loop Approach

Building a Non-Invasive Java Function Profiler with OpenResty XRay

2025-10-10T00:00:00.000Z

What is Non-Intrusive Function Probing?
What Makes OpenResty XRay’s Non-Intrusive Probes Unique?
Hands-on Demo: Monitoring Function Parameters
Technical Advantages and Use Cases

How OpenResty XRay Pinpoints the Toughest Problems with Minimal Data

2025-09-24T00:00:00.000Z

More Data Doesn’t Mean More Insight
The Difference of OpenResty XRay
XRay Real-world Use Cases

OpenResty XRay Reduces Usage to 40% with a Flame Graph for Financial Services

2025-09-12T00:00:00.000Z

Pinpointing Memory Leak Root Causes with a Flame Graph
Significant Optimization Achievements
Further Reading
Summary