Analyzer ngx-req-counts-by-hosts

# Name

ngx-req-counts-by-hosts - Showing the top 10 hostnames order by request counts

This analyzer tracks request volume across virtual hosts in OpenResty, Kong, and APISIX applications. It counts HTTP requests grouped by host header to identify the top 10 most frequently accessed domains or services. The analyzer generates bar charts ranking hosts by request count, helping understand traffic distribution, capacity planning needs, and potential load balancing optimization opportunities.

# 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-counts-by-hosts -p PID

# trace a shell command directly
orxray analyzer run ngx-req-counts-by-hosts -c SHELL_CMD

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

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

# Tracing Multiple Processes

Supported.

# Output Formats

• Bar Charts
• Line Charts
• Pie Charts
• Plain Texts

# Output Example

[
  {
      "title": "Busiest Hostnames with the most requests",
      "subtitle": "",
      "type": "bar",
      "series": {
          "data": {
              "": 13000,
              "openresty.org": 10000,
              "openresty.com": 3000
          },
          "name": "request counts"
      }
  }
]

# Author

The OpenResty Inc. Team.

# Copyright

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