OpenResty Edge Aug 5, 2026

OpenResty Edge Updated Aug 5, 2026 6 mins read

OpenResty Edge Gateway Health Checks: Auto-Remove Failed Nodes from DNS

tutorial openresty-edge gateway server healthcheck

• Create a health check endpoint with a page rule
• Enable health checks for gateway servers
• Test failover when a gateway node fails
• Frequently asked questions

OpenResty Edge Aug 26, 2026

OpenResty Edge Updated Aug 26, 2026 6 mins read

How to Use Gateway Partitions in OpenResty Edge

tutorial openresty-edge gateway server releases

• Create a new partition
• Create a new application in the new partition
• Create a new page rule
• Test the new partition
• What is OpenResty Edge

OpenResty Edge Aug 24, 2026

OpenResty Edge Updated Aug 24, 2026 5 mins read

Accurately Restore the Real Client IP Address in OpenResty Edge

tutorial openresty-edge proxy real-ip

• Set “Trusted hosts to set real IP” and “Real IP from” Globally
• Configure the Application to Output the Client Address
• Check the Client Address Received on OpenResty Edge
• What is OpenResty Edge

OpenResty XRay Jun 26, 2026

OpenResty XRay Updated Jun 26, 2026 7 mins read

Use C++ to Dynamic-Trace C++ Applications

stl c++ ebpf openresty-xray dynamic-tracing

• Setting Up the Target C++ Program
• Crafting the C++ (or Y++) Analyzer
• Operationalizing the Target and Analyzer
• Advancing Support for Complex C++ Applications
• About the Debug Symbols

OpenResty XRay Aug 20, 2026

OpenResty XRay Updated Aug 20, 2026 7 mins read

Erlang High CPU Usage: PCRE Regex Bottleneck Traced with Flame Graphs

tutorial openresty-xray erlang cpu profiling regex flame-graph beam-vm

• Observing 200%+ CPU in an Erlang Process
• Profiling Erlang CPU Usage with OpenResty XRay
• C-Level Analysis: erts_pcre_exec and PCRE Backtracking
• Why PCRE Regex Backtracking Is Expensive in the BEAM VM
• Automatic Monitoring and Reports
• FAQ: Erlang High CPU Usage
• What is OpenResty XRay

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 6 mins read

How to Trace Perl Exceptions in Production Without Restarting

tutorial openresty-xray perl exceptions

• How to detect and analyze exceptions inside Perl applications
• Automatic analysis and reports
• What is OpenResty XRay
• FAQ

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 6 mins read

Nginx 'No Debugging Symbols Found'? Rebuild Them Automatically with OpenResty XRay

tutorial openresty-xray debug-symbol nodwarf

• Confirming Nginx Is Stripped and Debug Symbols Are Missing
• Rebuild Missing Nginx Debug Symbols Automatically — No Recompile Needed
• Continuous Analysis: Daily and Weekly Insights Reports
• FAQ: nginx-dbg, recompiling, and profiling stripped binaries

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 7 mins read

Automatic Core Dump Analysis (using OpenResty XRay)

openresty-xray core-dump lua-backtrace luajit dynamic-tracing ebpf

• Locate the core dump file from a crashed OpenResty/Nginx worker
• Start automatic (guided) core dump analysis in OpenResty XRay
• Read the signal, CPU registers, and C backtrace of the crash
• Follow the Lua backtrace to the exact crashing line
• Automatic Insights reports for online core dumps

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 4 mins read

Install OpenResty XRay’s Agents on Amazon Linux via Package Bundles

tutorial openresty-xray amazon-linux2 agent install

• Logging in to the Console
• Installing the Agent via Bundle Packages
• Configuring and Detecting Applications
• Initiating Analyzers and Viewing Insights
• Install Another Agent
• What is OpenResty XRay

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 7 mins read

Debugging High Disk I/O in Go Services on Linux

tutorial openresty-xray go disk-io

• Identifying the Go process with high disk I/O
• Tracing Go disk read and write code paths with flame graphs
• Automatic disk I/O analysis and reports
• What is OpenResty XRay
• Frequently Asked Questions

OpenResty Edge Aug 26, 2026

OpenResty Edge Updated Aug 26, 2026 7 mins read

Control Access to DNS Applications in OpenResty Edge's Admin Console

tutorial openresty-edge dns user-management

• Check DNS page permissions as a super user
• Create a user group with only read permission for this DNS application
• Create a tester account
• See the DNS applications with permission granted
• What is OpenResty Edge

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 6 mins read

Envoy CPU Profiling: Find Hot C++ Paths with Flame Graphs

tutorial openresty-xray cpu envoy flame-graph profiling dynamic-tracing

• Scenario: Envoy Proxy Running at 90% CPU
• Profile Envoy CPU with C++ Flame Graphs
• Continuous CPU Monitoring with Automated Reports
• What is OpenResty XRay
• FAQ: Envoy CPU Profiling

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 7 mins read

PHP High CPU Usage: Find the Hottest Code Path with OpenResty XRay

tutorial openresty-xray php cpu flame-graph profiling

• Problem: high CPU usage
• Find which PHP function is using the CPU with OpenResty XRay Guided Analysis
• Read the CPU flame graph and the hottest PHP and C code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 6 mins read

How to Trace Go Panics in Production Without Restarting

tutorial openresty-xray go exceptions

• How to detect and analyze exceptions inside live Go applications
• Automatic analysis and reports
• What is OpenResty XRay
• FAQ

OpenResty Edge Aug 26, 2026

OpenResty Edge Updated Aug 26, 2026 6 mins read

How to Create and Call a Lua Module in OpenResty Edge Using Edgelang

tutorial openresty-edge lua edgelang

• How to create a Global Lua Module in OpenResty Edge
• How to call the Lua module from Edgelang in a page rule
• How to verify the Lua module output with curl
• What is OpenResty Edge

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 9 mins read

Laravel High CPU Usage: Why Even Hello World Burns Half Its CPU

tutorial openresty-xray laravel php

• Why Laravel uses high CPU even in hello world apps
• Laravel CPU profiling: the three hottest code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 7 mins read

Perl Process Stuck at 13% CPU: Off-CPU Flame Graphs Pinpoint a Blocking HTTP Call

tutorial openresty-xray perl off-cpu

• The symptom: Perl process CPU usage stays low under heavy requests
• Find the blocking Perl code paths with OpenResty XRay’s off-CPU flame graphs
• Automatic analysis and reports in the Insights page
• FAQ
• What is OpenResty XRay
• About The Author

OpenResty XRay Aug 28, 2026

OpenResty XRay Updated Aug 28, 2026 6 mins read

How to Trace Rust Panics in Production Without Restarting

tutorial openresty-xray rust exceptions

• How to detect and analyze exceptions inside live Rust applications
• Automatic analysis and reports
• What is OpenResty XRay
• FAQ

OpenResty XRay Aug 27, 2026

OpenResty XRay Updated Aug 27, 2026 7 mins read

Pinpointing CPU-Hottest Go Code Paths Inside Prometheus (using OpenResty XRay)

tutorial openresty-xray prometheus garbage-collection go

• Problem: high CPU usage
• Use the guided analysis feature of OpenResty XRay to spot the CPU-hottest Go code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty Open Source Aug 24, 2026

OpenResty Open Source Updated Aug 24, 2026 1 min read

OpenResty 1.25.3.1 Released

openresty releases

• Version highlights
• Full Changelog
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