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OpenResty XRay Jul 24, 2026

OpenResty XRay Updated Jul 24, 2026 11 mins read

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

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  • 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

OpenResty XRay Jun 26, 2026

OpenResty XRay Updated Jun 26, 2026 9 mins read

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

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  • 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

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
  • 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 Jun 26, 2026

OpenResty XRay Updated Jun 26, 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
  • The Unique Value of UDB in Python Debugging
  • Enhancing Debugging Capabilities with OpenResty XRay
  • Real-World Example: Analyzing Python Network Request Call Stacks
  • Summary
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