NGINX Plus collector

NGINX Plus is a software load balancer, API gateway, and reverse proxy built on top of NGINX.

This module will monitor one or more NGINX Plus servers, depending on your configuration.

Requirements

• NGINX Plus with configured API.

Metrics

All metrics have "nginxplus." prefix.

Labels per scope:

• global: no labels.
• http server zone: http_server_zone.
• http location zone: http_location_zone.
• http upstream: http_upstream_name, http_upstream_zone.
• http upstream server: http_upstream_name, http_upstream_zone, http_upstream_server_address, http_upstream_server_name.
• http cache: http_cache.
• stream server zone: stream_server_zone.
• stream upstream: stream_upstream_name, stream_upstream_zone.
• stream upstream server: stream_upstream_name, stream_upstream_zone, stream_upstream_server_address, stream_upstream_server_name.
• resolver zone: resolver_zone.

Metric	Scope	Dimensions	Units
client_connections_rate	global	accepted, dropped	connections/s
client_connections_count	global	active, idle	connections
ssl_handshakes_rate	global	successful, failed	handshakes/s
ssl_handshakes_failures_rate	global	no_common_protocol, no_common_cipher, timeout, peer_rejected_cert	failures/s
ssl_verification_errors_rate	global	no_cert, expired_cert, revoked_cert, hostname_mismatch, other	errors/s
ssl_session_reuses_rate	global	ssl_session	reuses/s
http_requests_rate	global	requests	requests/s
http_requests_count	global	requests	requests
uptime	global	uptime	seconds
http_server_zone_requests_rate	http server zone	requests	requests/s
http_server_zone_responses_per_code_class_rate	http server zone	1xx, 2xx, 3xx, 4xx, 5xx	responses/s
http_server_zone_traffic_rate	http server zone	received, sent	bytes/s
http_server_zone_requests_processing_count	http server zone	processing	requests
http_server_zone_requests_discarded_rate	http server zone	discarded	requests/s
http_location_zone_requests_rate	http location zone	requests	requests/s
http_location_zone_responses_per_code_class_rate	http location zone	1xx, 2xx, 3xx, 4xx, 5xx	responses/s
http_location_zone_traffic_rate	http location zone	received, sent	bytes/s
http_location_zone_requests_discarded_rate	http location zone	discarded	requests/s
http_upstream_peers_count	http upstream	peers	peers
http_upstream_zombies_count	http upstream	zombie	servers
http_upstream_keepalive_count	http upstream	keepalive	connections
http_upstream_server_requests_rate	http upstream server	requests	requests/s
http_upstream_server_responses_per_code_class_rate	http upstream server	1xx, 2xx, 3xx, 4xx, 5xx	responses/s
http_upstream_server_response_time	http upstream server	response	milliseconds
http_upstream_server_response_header_time	http upstream server	header	milliseconds
http_upstream_server_traffic_rate	http upstream server	received, sent	bytes/s
http_upstream_server_state	http upstream server	up, down, draining, unavail, checking, unhealthy	state
http_upstream_server_connections_count	http upstream server	active	connections
http_upstream_server_downtime	http upstream server	downtime	seconds
http_cache_state	http cache	warm, cold	state
http_cache_iops	http cache	served, written, bypass	responses/s
http_cache_io	http cache	served, written, bypass	bytes/s
http_cache_size	http cache	size	bytes
stream_server_zone_connections_rate	stream server zone	accepted	connections/s
stream_server_zone_sessions_per_code_class_rate	stream server zone	2xx, 4xx, 5xx	sessions/s
stream_server_zone_traffic_rate	stream server zone	received, sent	bytes/s
stream_server_zone_connections_processing_count	stream server zone	processing	connections
stream_server_zone_connections_discarded_rate	stream server zone	discarded	connections/s
stream_upstream_peers_count	stream upstream	peers	peers
stream_upstream_zombies_count	stream upstream	zombie	servers
stream_upstream_server_connections_rate	stream upstream server	forwarded	connections/s
stream_upstream_server_traffic_rate	stream upstream server	received, sent	bytes/s
stream_upstream_server_state	stream upstream server	up, down, unavail, checking, unhealthy	state
stream_upstream_server_downtime	stream upstream server	downtime	seconds
stream_upstream_server_connections_count	stream upstream server	active	connections
resolver_zone_requests_rate	resolver zone	name, srv, addr	requests/s
resolver_zone_responses_rate	resolver zone	noerror, formerr, servfail, nxdomain, notimp, refused, timedout, unknown	responses/s

Configuration

Edit the go.d/nginxplus.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

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

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

jobs:
  - name: local
    url: http://127.0.0.1

  - name: remote
    url: http://203.0.113.10

For all available options please see module configuration file.

Troubleshooting

To troubleshoot issues with the nginxplus 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.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/

• Switch to the netdata user.

  sudo -u netdata -s

• Run the go.d.plugin to debug the collector:

  ./go.d.plugin -d -m nginxplus