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OpenResty XRay Aug 24, 2022
OpenResty XRay Aug 24, 2022
Resolving Bilibili’s major site incident with OpenResty XRay
- The incident
- Process of resolution
- Hardening after the incident
- OpenResty XRay Services
OpenResty XRay Feb 18, 2023
OpenResty XRay Feb 18, 2023
When Lua IPC Pipes Block OpenResty or Nginx's Event Loops
- The Problem
- Analyses
- Solutions
- Results
OpenResty XRay Feb 16, 2023
OpenResty XRay Feb 16, 2023
The Wonderland of Dynamic Tracing (Part 1 of 3)
- Dynamic Tracing
- What It Is
- Too Good to be True?
- How it Works
- Still Having Doubts?
- The Advantages of Dynamic Tracing
- DTrace
- SystemTap
- DTrace and SystemTap
- Applications of SystemTap in Production
OpenResty XRay Jan 14, 2023
OpenResty XRay Jan 14, 2023
Automatic Analysis Reports in OpenResty XRay
- The Past
- The Present
- The Future
OpenResty XRay Aug 31, 2020
OpenResty XRay Aug 31, 2020
Introduction to Lua-Land CPU Flame Graphs
- What is a Flame Graph
- Simple Lua samples
- Complicated Lua applications
- Sampling overhead
- Safety
- Compatibility
- Other types of Lua-land Flame Graphs
OpenResty XRay Aug 10, 2020
OpenResty XRay Aug 10, 2020
Memory Fragmentation in OpenResty and Nginx's Shared Memory Zones
- An empty zone
- Filling entries of similar sizes
- Deleting odd-numbered keys
- Deleting the keys in the first half
- Mitigating Fragmentation
OpenResty XRay Aug 4, 2020
OpenResty XRay Aug 4, 2020
How OpenResty and Nginx Shared Memory Zones Consume RAM
- Slabs and pages
- What is allocated is not what is paid for
- Fake Memory Leaks
- HUP reload
OpenResty XRay Jan 21, 2020
OpenResty XRay Jan 21, 2020
How OpenResty and Nginx Allocate and Manage Memory
- On The System Level
- On The Application Level
- For Traditional Nginx Servers
OpenResty XRay Jul 8, 2025
OpenResty XRay Jul 8, 2025
Case Study: How to Trace a Memory Leak Caused by an LRU Cache Using OpenResty XRay
- The Silent Killer: How Invisible Memory Leaks Threaten Business Stability
- A Deep Dive into a Memory Leak Investigation
- From Predicament to Breakthrough: A Pinpoint Diagnosis
OpenResty XRay Jul 2, 2025
OpenResty XRay Jul 2, 2025
Performance Breakthrough: 60% DNS Optimization Success with OpenResty XRay
- When the “Lifeline” DNS Service Faces a Performance Crisis
- How to Investigate the Culprit Step by Step with OpenResty XRay
- Precision “Treatment”: Three Steps to Rebirth
- Summary: What We Achieved in Just a Few Minutes
- What is OpenResty XRay
OpenResty XRay Jul 1, 2025
OpenResty XRay Jul 1, 2025
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
OpenResty XRay Jun 27, 2025
OpenResty XRay Jun 27, 2025
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
OpenResty XRay Jun 27, 2025
OpenResty XRay Jun 27, 2025
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