Analyzer ngx-req-count

# Name

ngx-req-count - Count Nginx Subrequests and Main Requests

This analyzer tracks and counts both main HTTP requests and subrequests in Nginx-based web servers including OpenResty and Kong. It captures request statistics over a configurable time interval and generates a bar chart visualization showing the total count of requests and subrequests. The analyzer helps monitor traffic patterns, identify unusual request spikes, and understand the relationship between main requests and subrequests for capacity planning and performance troubleshooting.

# Resource Category

Network I/O.

# 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 ngx-req-count -p PID

# trace a shell command directly
orxray analyzer run ngx-req-count -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run ngx-req-count -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run ngx-req-count --exe /path/to/exe/file

# Tracing Multiple Processes

Supported.

# Output Formats

• Bar Charts
• Plain Texts

# Output Example

{
  "data": [{
    "title": "Count Nginx Subrequests and Main Requests",
    "subtitle": "",
    "series": {
      "data": {"subrequests": 0, "requests": 57},
      "name": "count"
    },
    "ver": 1,
    "type": "bar"
  }],
  "kind": "common"
}

# Author

The OpenResty Inc. Team.

# Copyright

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