OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 4 mins read

Use Lua Extensions to Respond to Gateway Server Offline Events in OpenResty Edge

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• Create a new Lua extension
• Trigger the Lua extension with an offline gateway server
• What is OpenResty Edge

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 5 mins read

Call Lua modules by Edgelang in OpenResty Edge

tutorial openresty-edge Lua Edgelang

• Create a Lua module in OpenResty Edge
• Call the Lua module in an HTTP application of OpenResty Edge
• Verify the effect of calling the Lua module
• What is OpenResty Edge

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

Pinpointing hottest Lua code paths in online OpenResty/Nginx servers (using OpenResty XRay)

tutorial openresty-xray lua cpu

• Problem: high CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the hottest Lua code paths
• Automatic analysis and reports

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

How we solved a CPU bottleneck caused by Lua exceptions in a custom Kong plugin (using OpenResty XRay)

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• The problem: high CPU usage in Kong servers
• The analysis & report
• The result: improved performance and reduced CPU usage

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 7 mins read

Memory and CPU usage statistics among Kong plugins online (using OpenResty XRay)

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• CPU usage among all Kong plugins in a server process
• Memory usage among all Kong plugins in a server process
• Extra overhead for the servers

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 6 mins read

When Lua IPC Pipes Block OpenResty or Nginx's Event Loops

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• The Problem
• Analyses
• Solutions
• Results

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 9 mins read

Listing Loaded Lua Modules in OpenResty or Nginx Processes

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• System Environment
• Names of Loaded Lua Modules
• Running Directly in the Web Console
• Tracing Applications inside Containers
• How The Tools are Implemented
• The Overhead of the Tools

OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 5 mins read

Streaming HTTP Response Output in OpenResty

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OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 4 mins read

Precompile Lua Modules into LuaJIT Bytecode to Speedup OpenResty Startup

nginx openresty tutorial lua luajit

OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 4 mins read

Timing Lua Code Correctly in OpenResty

nginx openresty tutorial lua

OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 4 mins read

Share Data Across Requests Served by OpenResty

nginx lua openresty tutorial

OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 4 mins read

The resty Command-Line Utility Demo

nginx openresty tutorial lua

OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 4 mins read

Write Your Own Lua Modules for OpenResty Applications

nginx openresty tutorial lua

OpenResty Open Source Oct 20, 2023

OpenResty Open Source Updated Oct 20, 2023 3 mins read

Hello World HTTP Example in OpenResty

nginx openresty tutorial lua

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 19 mins read

Introduction to Lua-Land CPU Flame Graphs

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• What is a Flame Graph
• Simple Lua samples
• Complicated Lua applications
• Sampling overhead
• Safety
• Compatibility
• Other types of Lua-land Flame Graphs