OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

Pinpointing the hottest Go code paths with high CPU usage (using OpenResty XRay)

tutorial openresty-xray go cpu

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

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

Pinpointing the blocking Python code paths (using OpenResty XRay)

tutorial openresty-xray python off-cpu

• Problem: low CPU usage
• Use the guidede analysis feature of OpenResty XRay to spot the blocking Python code paths
• Automatic analysis and reports
• What is OpenResty XRay

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

Two bugs in Linux kernels' tracing subsystem (found by OpenResty XRay)

openresty-xray dynamic-tracing linux-kernel bugs

• Kernel deadlocks in user-space memory reading
• Data races in x86 breakpoint insertion of the kernel
• What is OpenResty XRay

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 5 mins read

Pinpointing hottest Perl code paths (using OpenResty XRay)

tutorial openresty-xray perl cpu

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

OpenResty Open Source Jul 28, 2023

OpenResty Open Source Updated Jul 28, 2023 2 mins read

OpenResty 1.21.4.2 Released

OpenResty releases

• Version highlights
• Full Changelog
• Feedback

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 Apr 6, 2026

OpenResty XRay Updated Apr 6, 2026 5 mins read

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

openresty-xray exceptions lua kong nginx cpu

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

OpenResty XRay Apr 6, 2026

OpenResty XRay Updated Apr 6, 2026 7 mins read

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

openresty-xray kong nginx lua memory cpu

• 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 Apr 6, 2026

OpenResty XRay Updated Apr 6, 2026 5 mins read

Troubleshooting the extra 200-ms request latency online

openresty-xray latency network smarkt-packet-capture nginx

• The Problem
• The Analsysis Process
• Fully-automated analysis
• What is OpenResty XRay

OpenResety Edge Apr 6, 2026

OpenResety Edge Updated Apr 6, 2026 4 mins read

EdgeLang: A Powerful and Efficient Language for Gateway Logic

edgelang openresty-edge

• Introduction to Edgelang
• Benefits of Edgelang
• Edgelang in Edge Admin

OpenResty XRay Jun 17, 2025

OpenResty XRay Updated Jun 17, 2025 6 mins read

Pinpointing leaked Lua tables with OpenResty XRay's command-line tools

openresty memory-leak openresty-xray case-study

• How LuaJIT manages memory
• OpenResty XRay’s command-line tools
• An leaking example
• Analysis procedure
• lj-gco-ref analyzer
• Fully-automated analysis

OpenResty XRay Apr 6, 2026

OpenResty XRay Updated Apr 6, 2026 8 mins read

Real-Time Request Counting against Nginx Processes via YSQL

openresty-xray ysql nginx

• How to install the run-ysql tool
• Count total requests served in real time
• Filter out specific requests
• Using YSQL in the Web Console
• True non-invasive tracing

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 2 mins read

Using request IDs to troubleshoot problematic requests in OpenResty Edge gateways

tutorial openresty-edge track requests

• Global configuration Request ID
• Request ID Decoder

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 5 mins read

Configuring hCaptcha’s captcha webpages in OpenResty Edge

tutorial openresty-edge hcaptcha

• Configure hCaptcha in OpenResty Edge
• Test

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 6 mins read

Configuring SNI proxies in OpenResty Edge

tutorial openresty-edge sni proxy tlsedge

• Create an SNI proxy application
• Create an upstream and a page rule for the application
• Test the SNI proxy application

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 5 mins read

Pushing static resources to OpenResty Edge gateways

tutorial openresty-edge static resource

• Upload static resources
• Create a page rule to use the uploaded static resources
• Test

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 4 mins read

Configuring the built-in captcha webpages in OpenResty Edge

tutorial openresty-edge captcha

• Configure OpenResty Edge’s built-in captcha
• Test

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 5 mins read

Configuring gateway access log files in OpenResty Edge

tutorial openresty-edge access log

• Configure access log format on the global config page
• Configure access logs for the sample application
• Test access logs

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 5 mins read

Load-balancing TCP applications via OpenResty Edge

tutorial openresty-edge proxy

• Create a TCP application
• Create an upstream and a page rule for the TCP application
• Test the TCP application

OpenResety Edge Jun 17, 2025

OpenResety Edge Updated Jun 17, 2025 6 mins read

Configuring error log files in OpenResty Edge

tutorial openresty-edge error log

• Error logs of the sample application
• Error logs of openresty.com
• Global error logs
• Check error logs on servers