NGINX VTS monitoring

nginxvts can monitor statistics of NGINX which configured with nginx-module-vts, including:

  • Nginx uptime (seconds):

    • Uptime
  • Nginx connections (requests/s):

    • active, reading, writing, waiting, accepted, handled, total
  • Shared memory size (bytes)

    • Maximum size of shared memory
    • Current size of shared memory
  • Number of node using in shared memory (nodes)

  • Total number of client requests (requests/s)

  • Total Response code (responses/s)

    • 1xx, 2xx, 3xx, 4xx, 5xx
  • Total server traffic (bytes/s)

    • The total number of bytes received from clients
    • The total number of bytes sent to clients
  • Total server cache (responses/s)

    • miss, bypass, expired, stale, updating, revalidated, hit, scarce

Refer nginx-module-vts for more information.

(Other statistics like UpsteamZones, FilterZones will be added later)

Configuration#

Edit the go.d/nginxvts.conf configuration file using edit-config from the your agent's config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/nginxvts.conf

Needs only url to server's stub_status. Here is an example for local and remote servers:

jobs:
- name: local
url: http://127.0.0.1/status/format/json
- name: remote
url: http://203.0.113.0/status/format/json

For all available options please see module configuration file.

Troubleshooting#

To troubleshoot issues with the nginxvts collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

First, navigate to your plugins directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch to the netdata user.

cd /usr/libexec/netdata/plugins.d/
sudo -u netdata -s

You can now run the go.d.plugin orchestrator to debug the collector:

./go.d.plugin -d -m nginxvts
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