OpenResty's Official Blog for Technologies & Products

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 6 mins read

How to Trace PHP Exceptions in Production Without Restarting

tutorial openresty-xray php exceptions

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

OpenResty XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 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 24, 2026

OpenResty XRay Updated Aug 24, 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 XRay Aug 24, 2026

OpenResty XRay Updated Aug 24, 2026 5 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 24, 2026

OpenResty XRay Updated Aug 24, 2026 6 mins read

Kong Plugin High CPU Usage: A Hidden Lua Exception Traced with Flame Graphs

openresty-xray exceptions lua kong nginx cpu

• The problem: Kong plugin high CPU usage under light traffic
• Finding the CPU bottleneck with an OpenResty XRay flame graph
• The result: Kong CPU usage cut from 80% to 50%