OpenResty XRay Version 26.7.15. Now Available
- Key Highlights
- Other Important Updates
- Key Highlights
- Other Important Updates
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Openresty-Xray
OpenResty XRay AI Assistant: Making Every Piece of Analysis Data Speak
- How Is It Different from Pasting a Report into ChatGPT?
- Three Typical Scenarios
- FAQ: Can AI Really Read a Flame Graph? How Reliable Is It?
- How Is It Different from Pasting a Report into ChatGPT?
- Three Typical Scenarios
- FAQ: Can AI Really Read a Flame Graph? How Reliable Is It?
OpenResty Private Libraries: High-Performance Lua & Nginx Modules
- The Full Catalog
- What’s Inside, by Scenario
- How Licensing Works
- FAQ
- The Full Catalog
- What’s Inside, by Scenario
- How Licensing Works
- FAQ
OpenResty XRay Version 26.5.11. Now Available
- Key Highlights
- Other Important Updates
- Key Highlights
- Other Important Updates
Binary Vulnerability Scanning: Catch Backported Patches, Cut False Positives
- Why Version-Matching Vulnerability Scanning Fails: Three Compounding Costs
- How OpenResty XRay’s Binary Vulnerability Scanning Works: The Evidence-First Model
- Case Study: Binary Vulnerability Scanning on Rocky Linux with Dual OpenSSL Versions
- From Alert Fatigue to Precision: A Sustainable Vulnerability Scanning Practice
- Why Version-Matching Vulnerability Scanning Fails: Three Compounding Costs
- How OpenResty XRay’s Binary Vulnerability Scanning Works: The Evidence-First Model
- Case Study: Binary Vulnerability Scanning on Rocky Linux with Dual OpenSSL Versions
- From Alert Fatigue to Precision: A Sustainable Vulnerability Scanning Practice
OpenResty XRay Version 26.2.1. Now Available
- Key Highlights
- Stability and Usability Enhancements
- Key Highlights
- Stability and Usability Enhancements
How OpenResty XRay Enables Full-Stack Dynamic Tracing in Production
- 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
- 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
Introduction to OpenResty XRay
- 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
- 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
Hunting Down a Silent Memory Leak in OpenResty Without a Reboot
- A Complete Dissection of a Production Memory Leak
- Why Are These Problems Nearly Unsolvable?
- A System Transformation
- When Performance Issues Go Beyond Just Tools
- A Complete Dissection of a Production Memory Leak
- Why Are These Problems Nearly Unsolvable?
- A System Transformation
- When Performance Issues Go Beyond Just Tools
Nginx Reverse Proxy QPS Dropped 15x: A Missing upstream keepalive and an -O0 Debug Build
- A 15x Slower Nginx Reverse Proxy — and No Errors in the Logs
- Flame Graphs Expose a Connection Storm: The Missing upstream keepalive
- The Remaining 10% Gap: Baseline Comparison Points to the Compiler
- How an -O0 Debug Build Cost Us 10% of Performance
- A 15x Slower Nginx Reverse Proxy — and No Errors in the Logs
- Flame Graphs Expose a Connection Storm: The Missing upstream keepalive
- The Remaining 10% Gap: Baseline Comparison Points to the Compiler
- How an -O0 Debug Build Cost Us 10% of Performance
Fix LuaJIT RSS Memory Leak in OpenResty: Stop OOM Kills Without Restarts
- 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
- 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
How We Pinpointed a 244ms Latency Spike in a 500k QPS OpenResty Gateway
- 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
- 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
How to Diagnose Java Memory Leaks in Production — Without Heap Dumps or Restarts
- Why Full GCs Didn’t Reclaim the Heap: A Production Java Memory Leak
- How to Diagnose a Java Memory Leak in Production Without a Heap Dump
- How to Find a Java Memory Leak: A Reusable 3-Step Method
- Why Use OpenResty XRay to Find Java Memory Leaks on a Live JVM?
- FAQ
- Why Full GCs Didn’t Reclaim the Heap: A Production Java Memory Leak
- How to Diagnose a Java Memory Leak in Production Without a Heap Dump
- How to Find a Java Memory Leak: A Reusable 3-Step Method
- Why Use OpenResty XRay to Find Java Memory Leaks on a Live JVM?
- FAQ
When a "Black Box" Plugin Consumes 45% CPU: How We Pinpointed Lua Line 93 Without Source Code
- When perf Meets the Black Box
- From Sampling to Full-Stack Dynamic Tracing
- Uncovering the Evidence Trail
- From What happene to Why
- Summary
- When perf Meets the Black Box
- From Sampling to Full-Stack Dynamic Tracing
- Uncovering the Evidence Trail
- From What happene to Why
- Summary
OpenResty XRay Version 25.10.11 Now Available
- Three Key Highlights
- Enhanced Diagnostic Accuracy and Stability
- Usability and Security Enhancements
- Three Key Highlights
- Enhanced Diagnostic Accuracy and Stability
- Usability and Security Enhancements
How to Pinpoint the Hidden Cost of Gzip Configuration with OpenResty XRay
- Performance Issues Often Lurk in Unexpected Places
- How OpenResty XRay Uncovers the Root Cause
- Quantifying Performance Bottlenecks
- From Experience to Methodology
- Performance Issues Often Lurk in Unexpected Places
- How OpenResty XRay Uncovers the Root Cause
- Quantifying Performance Bottlenecks
- From Experience to Methodology
Nginx C++ Module Memory Leak: Root Cause in Production, No Restart
- The Production Challenge: A C++ Module Memory Leak You Can’t Debug With GDB
- How the Flame Graph Pinpointed the Leaking Function in ngx_dubbo_module
- From Reactive to Proactive: XRay’s New Approach to Troubleshooting
- The OpenResty XRay Closed-Loop Approach
- The Production Challenge: A C++ Module Memory Leak You Can’t Debug With GDB
- How the Flame Graph Pinpointed the Leaking Function in ngx_dubbo_module
- From Reactive to Proactive: XRay’s New Approach to Troubleshooting
- The OpenResty XRay Closed-Loop Approach
Non-Invasive Java Profiler: Capture Method Arguments in Production Without a Java Agent
- Why Non-Invasive Java Profiling Matters in Production
- Hands-on Demo: Capturing Java Method Arguments in Production
- How OpenResty XRay Differs from Common Java Profilers
- Frequently Asked Questions
- Why Non-Invasive Java Profiling Matters in Production
- Hands-on Demo: Capturing Java Method Arguments in Production
- How OpenResty XRay Differs from Common Java Profilers
- Frequently Asked Questions
How OpenResty XRay Pinpoints the Toughest Problems with Minimal Data
- More Data Doesn’t Mean More Insight
- The Difference of OpenResty XRay
- XRay Real-world Use Cases
- More Data Doesn’t Mean More Insight
- The Difference of OpenResty XRay
- XRay Real-world Use Cases
Perl Memory Leak: From Several GB to 60MB with One Flame Graph
- Pinpointing Memory Leak Root Causes with a Flame Graph
- Significant Optimization Achievements
- Further Reading
- Summary
- Pinpointing Memory Leak Root Causes with a Flame Graph
- Significant Optimization Achievements
- Further Reading
- Summary
How OpenResty XRay's Node.js Function Probes Enable a New Monitoring Paradigm
- Why You Need a New Paradigm for Non-Invasive Function Probes
- Hands-on Demo: Monitoring Function Parameters
- How Top Teams Leverage Non-Intrusive Probes to Boost Engineering Efficiency
- Why You Need a New Paradigm for Non-Invasive Function Probes
- Hands-on Demo: Monitoring Function Parameters
- How Top Teams Leverage Non-Intrusive Probes to Boost Engineering Efficiency
The Nginx Worker That Refused to Serve More Than 300 RPS: Traced to a 75ms Event-Loop Block
- High Load but No Useful Work: CPU Contention from a Missing worker_cpu_affinity
- How Blocking Lua I/O Calls Halted the Nginx Event Loop
- Measuring File I/O Latency: Up to 1.5ms per Call
- How Bad Was the Nginx Event-Loop Blocking? 43,952 Samples, a 75ms Worst Case
- Frequently Asked Questions
- High Load but No Useful Work: CPU Contention from a Missing worker_cpu_affinity
- How Blocking Lua I/O Calls Halted the Nginx Event Loop
- Measuring File I/O Latency: Up to 1.5ms per Call
- How Bad Was the Nginx Event-Loop Blocking? 43,952 Samples, a 75ms Worst Case
- Frequently Asked Questions
Double Bottleneck Concurrency? OpenResty XRay Multi-dimensional Analysis Solves Performance Challenges
- Overall CPU Usage Analysis
- In-depth Module Analysis
- Analysis of Compression Strategies
- Analysis Conclusions
- Optimization Solutions
- Overall CPU Usage Analysis
- In-depth Module Analysis
- Analysis of Compression Strategies
- Analysis Conclusions
- Optimization Solutions
Analyzing CPU Usage in Online Node.js Applications (Using OpenResty XRay)
- 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
- 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
Nginx Core Dump Analysis: Catch a Worker Process Crash at the First Scene
- 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
- 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
How UDB and OpenResty XRay Let You See Through the Entire Perl Code Execution Process
- What is UDB?
- Hands-on: Analyzing Perl Application Call Stacks with OpenResty XRay and UDB
- Why More Developers Are Choosing UDB?
- Summary
- What is UDB?
- Hands-on: Analyzing Perl Application Call Stacks with OpenResty XRay and UDB
- Why More Developers Are Choosing UDB?
- Summary
UDB + OpenResty XRay: Unlocking the Mystery of OpenResty Application Performance
- 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
- 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
How to Debug File I/O in Java with Time-Travel Call Stacks
- 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
- 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
Unveiling Python Code Execution with 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
- The Unique Value of UDB in Python Debugging
- Enhancing Debugging Capabilities with OpenResty XRay
- Real-World Example: Analyzing Python Network Request Call Stacks
- Summary
Tracing an LRU Cache Memory Leak in OpenResty — Down to the Cached SSL Certificates
- 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
- 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
Uneven Nginx Worker CPU Usage: Tracing a Missing reuseport Flag and a cjson Hotspot
- 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
- 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
The Swiss Army Knife for Dynamic Tracing, How Ylang Tames Complexity
- 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
- 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
Major Breakthrough for OpenResty XRay: Non-Intrusive Analysis of Java Application Memory & Envoy Lua Performance
- Gain Complete Insight into Java Application Memory, Non-Intrusively
- Unlocking the Lua Performance Black Box Inside Envoy
- The Road Ahead
- Gain Complete Insight into Java Application Memory, Non-Intrusively
- Unlocking the Lua Performance Black Box Inside Envoy
- The Road Ahead
Why Dynamic Tracing is the Future of Production Troubleshooting
- 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
- 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
Deep Dive into Dynamic Tracing Technology: How OpenResty XRay Revolutionizes Problem Diagnosis
- 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
- 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
The Next Stop for Observability: How OpenResty XRay Redefines Problem Troubleshooting
- 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
- 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
Traditional Methods vs. Dynamic Tracing: A Revolution in Efficiency and Control
- 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
- 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
Why is Dynamic Tracing Difficult to Implement? How Does OpenResty XRay Break Through?
- 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
- 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
From Black Box to White Box: OpenResty XRay Makes System Issues Nowhere to Hide
- A Dynamic Tracing Tool That Turns Black Boxes into White Boxes
- Comprehensive Multi-dimensional Analysis Capabilities
- Real-World Case Studies
- Product Vision
- A Dynamic Tracing Tool That Turns Black Boxes into White Boxes
- Comprehensive Multi-dimensional Analysis Capabilities
- Real-World Case Studies
- Product Vision
OpenResty XRay Empowers LLVM clang Performance Optimization Practices
- What is LLVM/clang
- OpenResty XRay Analysis Process
- Optimization Implementation and Results
- Conclusion
- What is LLVM/clang
- OpenResty XRay Analysis Process
- Optimization Implementation and Results
- Conclusion
Self-Optimization: The Performance Evolution of OpenResty XRay
- Challenges and Pain Points
- OpenResty XRay’s Self-Analysis Process
- Remarkable Optimization Results
- Technical Insights and Business Value
- Conclusion
- Challenges and Pain Points
- OpenResty XRay’s Self-Analysis Process
- Remarkable Optimization Results
- Technical Insights and Business Value
- Conclusion
OpenResty XRay Helps Boost Script Performance by 44 Times
- From Bottleneck Discovery to Significant Speed Improvement
- How OpenResty XRay Works
- Comparison with Traditional Methods
- From Bottleneck Discovery to Significant Speed Improvement
- How OpenResty XRay Works
- Comparison with Traditional Methods
Cross-Media Data Structure Drift: OpenResty XRay Enables 20x Performance Improvement
- Performance Challenges and Breakthroughs
- Practical Significance of 20x Performance Improvement
- Future Outlook
- Performance Challenges and Breakthroughs
- Practical Significance of 20x Performance Improvement
- Future Outlook
From OOM to O(1): The Implementation Path of Streaming JSON Parser
- Differences between JSONL format and traditional JSON
- Solution
- Continuous optimization
- Technical insights
- verification
- Differences between JSONL format and traditional JSON
- Solution
- Continuous optimization
- Technical insights
- verification
From Days to Hours: How OpenResty XRay Accelerated the Linux shred Tool by Dozens of Times
- Problem Analysis
- OpenResty XRay Practical Results
- Optimization Process
- Application Value
- Problem Analysis
- OpenResty XRay Practical Results
- Optimization Process
- Application Value
Case Study: OpenResty XRay Doubles Ylang Compiler Performance
- Case Study: OpenResty XRay Doubles Ylang Compiler Performance
- Significant Optimization Results
- Ylang Language: The Ideal Tool for Dynamic Tracing
- A Model of Technical Synergy
- Further Reading
- Case Study: OpenResty XRay Doubles Ylang Compiler Performance
- Significant Optimization Results
- Ylang Language: The Ideal Tool for Dynamic Tracing
- A Model of Technical Synergy
- Further Reading
Java Tomcat Slow Response Time: Pinpoint the Exact Slow Request with PCAP
- Diagnose Tomcat slow response time by catching the exact slow request
- Selective packet capture: filter by duration, status, and path
- Per-request PCAP download for one specific slow request
- Tell server-side latency from network delay
- Works for Spring Boot apps with embedded Tomcat
- Diagnose Tomcat slow response time by catching the exact slow request
- Selective packet capture: filter by duration, status, and path
- Per-request PCAP download for one specific slow request
- Tell server-side latency from network delay
- Works for Spring Boot apps with embedded Tomcat
Java Application Profiling: CPU, Off-CPU & Disk I/O Without Safepoint Bias
- Profiling Java CPU hotspots with flame graphs
- Off-CPU Java profiling: lock contention and blocking analysis
- Java disk I/O profiling: tracing file and socket writes
- OpenJDK 8/11/17/21 application profiling support
- Automated sampling and expert analysis
- Performance impact and overhead
- FAQ
- Profiling Java CPU hotspots with flame graphs
- Off-CPU Java profiling: lock contention and blocking analysis
- Java disk I/O profiling: tracing file and socket writes
- OpenJDK 8/11/17/21 application profiling support
- Automated sampling and expert analysis
- Performance impact and overhead
- FAQ
‘A Quick Tour to OpenResty XRay’s Web Console’
- Introduction to Insight Page
- Comprehensive Report Details
- Dashboard Overview
- Use Guided Analysis Feature to Analyze Online
- Setting and Configuration
- What is OpenResty XRay
- Introduction to Insight Page
- Comprehensive Report Details
- Dashboard Overview
- Use Guided Analysis Feature to Analyze Online
- Setting and Configuration
- What is OpenResty XRay
Diagnosing High Disk I/O in Python Applications with XRay
- Identifying the Python process with high disk I/O
- Tracing Python disk read and write code paths with flame graphs
- Automatic disk I/O analysis and reports
- What is OpenResty XRay
- Frequently Asked Questions
- Identifying the Python process with high disk I/O
- Tracing Python disk read and write code paths with flame graphs
- Automatic disk I/O analysis and reports
- What is OpenResty XRay
- Frequently Asked Questions