Analyzer lj-excep-lua-fgraph

# Name

lj-excep-lua-fgraph - Lua Exception Flame Graph

This analyzer profiles exception handling in Lua code within OpenResty and Kong applications. It traces error generation and propagation paths, capturing stack traces at exception points. The analyzer generates flame graphs visualizing the frequency and distribution of Lua errors across different code paths, enabling developers to identify error-prone code sections and improve error handling strategies.

# Resource Category

CPU.

# Application Type & Technical Stack

• OpenResty
• Kong
• APISIX

# Command Line Syntax

The analyzer can be invoked directly on the command-line via the orxray utility from the openresty-xray-cli software package.

Alternatively, the analyzer can also be invoked manually or automatically on the web console UI of OpenResty XRay (like on the Advanced web page).

# PID is the target process PID.
orxray analyzer run lj-excep-lua-fgraph -p PID

# trace a shell command directly
orxray analyzer run lj-excep-lua-fgraph -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run lj-excep-lua-fgraph -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run lj-excep-lua-fgraph --exe /path/to/exe/file

# Tracing Multiple Processes

Supported.

# Output Formats

• Flame Graphs

# Author

The OpenResty Inc. Team.

# Copyright

Copyright (C) by OpenResty Inc. All rights reserved.