OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 10 mins read

Non-Invasive Node.js CPU Profiling with Flame Graphs

openresty-xray node.js memory cpu

• High CPU Usage Issues in Node.js Applications
• CPU Blocking Issues in Node.js Applications
• Automated Sampling and Expert Analysis
• Performance Impact and Overhead
• Future Plans

OpenResety Edge Sep 9, 2026

OpenResety Edge Updated Sep 9, 2026 5 mins read

How to Set Up a Self-Hosted CDN: Step-by-Step Guide with OpenResty Edge

tutorial openresty-edge cdn

• How OpenResty Edge Works: Edge Node, Admin, and Origin
• What You’ll Need Before You Start
• Step 1 — Install OpenResty Edge and Initialize the Cluster
• Step 2 — Plan and Register Your Edge Nodes
• Step 3 — Configure DNS and Traffic Routing
• Step 4 — Set Up Caching Rules for High Hit Rates
• Step 5 — Configure Edge Security Policies
• Step 6 — Monitor Your CDN and Set Up Alerting

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 11 mins read

Nginx Core Dump Analysis: Catch a Worker Process Crash at the First Scene

case-study openresty-xray undo core-dump memory nginx

• The Case: Frequent Nginx Worker Process Crashes No Log Could Explain
• Analyzing the Recording: Replaying the Crash Back to the First Scene
• Root Cause: A Use-After-Free in Nginx’s Connection Lifecycle
• Frequently Asked Questions

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 9 mins read

How UDB and OpenResty XRay Let You See Through the Entire Perl Code Execution Process

openresty-xray undo perl udb

• What is UDB?
• Hands-on: Analyzing Perl Application Call Stacks with OpenResty XRay and UDB
• Why More Developers Are Choosing UDB?
• Summary

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 9 mins read

UDB + OpenResty XRay: Unlocking the Mystery of OpenResty Application Performance

openresty-xray undo lua udb

• How OpenResty XRay Enhances Efficiency with UDB
• Hands-On: Analyzing OpenResty Lua Call Stacks with UDB and OpenResty XRay
• Advantages of Time-Travel Debugging
• Summary

OpenResty XRay Jul 23, 2026

OpenResty XRay Updated Jul 23, 2026 8 mins read

How to Debug File I/O in Java with Time-Travel Call Stacks

openresty-xray undo java udb

• Where IDE Breakpoints and Coredumps Fall Short in Java File I/O
• Reconstructing the Full Java Call Stack from a Native write() Syscall
• Debug Java File I/O Step by Step with Time-Travel Replay
• Frequently Asked Questions

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 4 mins read

Unveiling Python Code Execution with UDB

openresty-xray undo python udb

• The Unique Value of UDB in Python Debugging
• Enhancing Debugging Capabilities with OpenResty XRay
• Real-World Example: Analyzing Python Network Request Call Stacks
• Summary

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 7 mins read

Tracing an LRU Cache Memory Leak in OpenResty — Down to the Cached SSL Certificates

case-study openresty-xray lru memory

• Why a Low-Traffic OpenResty App Kept Leaking Memory
• How We Traced the LRU Cache Memory Leak, Step by Step
• The Result: From Unbounded Growth to Stable Memory

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 7 mins read

Uneven Nginx Worker CPU Usage: Tracing a Missing reuseport Flag and a cjson Hotspot

tutorial openresty-xray customer-story case-study

• The Symptom: Some Nginx Workers Maxed Out While Others Sat Idle
• How OpenResty XRay Pinpointed the Root Causes
• The Fix: Three Optimizations and Their Measured Gains
• Summary: What OpenResty XRay Found in Minutes
• Frequently Asked Questions
• What is OpenResty XRay

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 9 mins read

The Swiss Army Knife for Dynamic Tracing, How Ylang Tames Complexity

tutorial openresty-xray ylang dynamic-tracing

• Industry Pain Point: Why We Desperately Need a New Tracing Language
• The Core Tech: What Makes Y Language a Game-Changer?
• Ylang Syntax: The Familiarity of C, The Power of Advanced Tracing
• Killer Applications: Solving Problems Beyond the Reach of Traditional Tools
• Universal Platform Support: Y Lang Goes Everywhere
• Compiler Wizardry: Forging a Superior Language with Superior Tools

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 4 mins read

Major Breakthrough for OpenResty XRay: Non-Intrusive Analysis of Java Application Memory & Envoy Lua Performance

tutorial openresty-xray ylang dynamic-tracing

• Gain Complete Insight into Java Application Memory, Non-Intrusively
• Unlocking the Lua Performance Black Box Inside Envoy
• The Road Ahead

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 10 mins read

Why Dynamic Tracing is the Future of Production Troubleshooting

tutorial openresty-xray ylang dynamic-tracing

• The Unseen Crisis in Modern Software
• Why Traditional Tools Are Failing
• Dynamic Tracing: The New Paradigm for Troubleshooting
• The OpenResty XRay Difference
• From Firefighting to True Observability

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 9 mins read

Deep Dive into Dynamic Tracing Technology: How OpenResty XRay Revolutionizes Problem Diagnosis

tutorial openresty-xray ylang dynamic-tracing

• Dynamic Tracing: A Powerful Tool for Solving Complex System Issues
• Why Choose OpenResty XRay?
• Product Focus: XRay Applications in Real-World Scenarios
• Common Misconceptions and FAQs: What You Might Want to Know About Dynamic Tracing

OpenResty Open Source Aug 24, 2026

OpenResty Open Source Updated Aug 24, 2026 3 mins read

OpenResty 1.27.1.2 Released

openresty releases

• Version highlights
• Full Changelog
• Feedback

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 7 mins read

The Next Stop for Observability: How OpenResty XRay Redefines Problem Troubleshooting

tutorial openresty-xray ylang dynamic-tracing

• Why is Problem Troubleshooting Becoming Increasingly Difficult in Modern Software Architecture?
• Trend Insights: The Future of Observability Technology
• How Does Dynamic Tracing Technology Break Through Abstraction Layers?
• Use Case: Real-time Statistics of Plugin Resource Consumption in Production Kong Services
• Conclusion

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 7 mins read

Traditional Methods vs. Dynamic Tracing: A Revolution in Efficiency and Control

tutorial openresty-xray ylang dynamic-tracing

• A Revolution in Efficiency and Control
• Dynamic Tracing: X-Ray Vision for Your Systems
• From Flame Graphs to System Panorama
• Why Choose OpenResty XRay?
• The Future of Observability: New Frontiers in Dynamic Tracing

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 9 mins read

Why is Dynamic Tracing Difficult to Implement? How Does OpenResty XRay Break Through?

tutorial openresty-xray ylang dynamic-tracing

• Why is Problem Troubleshooting Becoming Increasingly Difficult in Modern Software Architecture?
• Trend Insights: The Future of Observability Technology
• How Does Dynamic Tracing Technology Break Through Abstraction Layers?
• Use Case: Real-time Statistics of Plugin Resource Consumption in Production Kong Services
• Conclusion

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 6 mins read

From Black Box to White Box: OpenResty XRay Makes System Issues Nowhere to Hide

tutorial openresty-xray

• A Dynamic Tracing Tool That Turns Black Boxes into White Boxes
• Comprehensive Multi-dimensional Analysis Capabilities
• Real-World Case Studies
• Product Vision

OpenResty XRay Jun 26, 2026

OpenResty XRay Updated Jun 26, 2026 5 mins read

OpenResty XRay Empowers LLVM clang Performance Optimization Practices

tutorial openresty-xray

• What is LLVM/clang
• OpenResty XRay Analysis Process
• Optimization Implementation and Results
• Conclusion

OpenResty XRay Jun 26, 2026

OpenResty XRay Updated Jun 26, 2026 5 mins read

Self-Optimization: The Performance Evolution of OpenResty XRay

tutorial openresty-xray

• Challenges and Pain Points
• OpenResty XRay’s Self-Analysis Process
• Remarkable Optimization Results
• Technical Insights and Business Value
• Conclusion