NGINX Plus collector
Overview
NGINX Plus is a software load balancer, API gateway, and reverse proxy built on
top of NGINX.
This collector will monitor one or more NGINX Plus servers, depending on your configuration.
Collected metrics
Metrics grouped by scope.
The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
global
These metrics refer to the entire monitored application.
This scope has no labels.
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.client_connections_rate |
accepted, dropped |
connections/s |
| nginxplus.client_connections_count |
active, idle |
connections |
| nginxplus.ssl_handshakes_rate |
successful, failed |
handshakes/s |
| nginxplus.ssl_handshakes_failures_rate |
no_common_protocol, no_common_cipher, timeout, peer_rejected_cert |
failures/s |
| nginxplus.ssl_verification_errors_rate |
no_cert, expired_cert, revoked_cert, hostname_mismatch, other |
errors/s |
| nginxplus.ssl_session_reuses_rate |
ssl_session |
reuses/s |
| nginxplus.http_requests_rate |
requests |
requests/s |
| nginxplus.http_requests_count |
requests |
requests |
| nginxplus.uptime |
uptime |
seconds |
http server zone
These metrics refer to the HTTP server zone.
Labels:
| Label |
Description |
| http_server_zone |
HTTP server zone name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.http_server_zone_requests_rate |
requests |
requests/s |
| nginxplus.http_server_zone_responses_per_code_class_rate |
1xx, 2xx, 3xx, 4xx, 5xx |
responses/s |
| nginxplus.http_server_zone_traffic_rate |
received, sent |
bytes/s |
| nginxplus.http_server_zone_requests_processing_count |
processing |
requests |
| nginxplus.http_server_zone_requests_discarded_rate |
discarded |
requests/s |
http location zone
These metrics refer to the HTTP location zone.
Labels:
| Label |
Description |
| http_location_zone |
HTTP location zone name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.http_location_zone_requests_rate |
requests |
requests/s |
| nginxplus.http_location_zone_responses_per_code_class_rate |
1xx, 2xx, 3xx, 4xx, 5xx |
responses/s |
| nginxplus.http_location_zone_traffic_rate |
received, sent |
bytes/s |
| nginxplus.http_location_zone_requests_discarded_rate |
discarded |
requests/s |
http upstream
These metrics refer to the HTTP upstream.
Labels:
| Label |
Description |
| http_upstream_name |
HTTP upstream name |
| http_upstream_zone |
HTTP upstream zone name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.http_upstream_peers_count |
peers |
peers |
| nginxplus.http_upstream_zombies_count |
zombie |
servers |
| nginxplus.http_upstream_keepalive_count |
keepalive |
connections |
http upstream server
These metrics refer to the HTTP upstream server.
Labels:
| Label |
Description |
| http_upstream_name |
HTTP upstream name |
| http_upstream_zone |
HTTP upstream zone name |
| http_upstream_server_address |
HTTP upstream server address (e.g. 127.0.0.1:81) |
| http_upstream_server_name |
HTTP upstream server name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.http_upstream_server_requests_rate |
requests |
requests/s |
| nginxplus.http_upstream_server_responses_per_code_class_rate |
1xx, 2xx, 3xx, 4xx, 5xx |
responses/s |
| nginxplus.http_upstream_server_response_time |
response |
milliseconds |
| nginxplus.http_upstream_server_response_header_time |
header |
milliseconds |
| nginxplus.http_upstream_server_traffic_rate |
received, sent |
bytes/s |
| nginxplus.http_upstream_server_state |
up, down, draining, unavail, checking, unhealthy |
state |
| nginxplus.http_upstream_server_connections_count |
active |
connections |
| nginxplus.http_upstream_server_downtime |
downtime |
seconds |
http cache
These metrics refer to the HTTP cache.
Labels:
| Label |
Description |
| http_cache |
HTTP cache name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.http_cache_state |
warm, cold |
state |
| nginxplus.http_cache_iops |
served, written, bypass |
responses/s |
| nginxplus.http_cache_io |
served, written, bypass |
bytes/s |
| nginxplus.http_cache_size |
size |
bytes |
stream server zone
These metrics refer to the Stream server zone.
Labels:
| Label |
Description |
| stream_server_zone |
Stream server zone name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.stream_server_zone_connections_rate |
accepted |
connections/s |
| nginxplus.stream_server_zone_sessions_per_code_class_rate |
2xx, 4xx, 5xx |
sessions/s |
| nginxplus.stream_server_zone_traffic_rate |
received, sent |
bytes/s |
| nginxplus.stream_server_zone_connections_processing_count |
processing |
connections |
| nginxplus.stream_server_zone_connections_discarded_rate |
discarded |
connections/s |
stream upstream
These metrics refer to the Stream upstream.
Labels:
| Label |
Description |
| stream_upstream_name |
Stream upstream name |
| stream_upstream_zone |
Stream upstream zone name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.stream_upstream_peers_count |
peers |
peers |
| nginxplus.stream_upstream_zombies_count |
zombie |
servers |
stream upstream server
These metrics refer to the Stream upstream server.
Labels:
| Label |
Description |
| stream_upstream_name |
Stream upstream name |
| stream_upstream_zone |
Stream upstream zone name |
| stream_upstream_server_address |
Stream upstream server address (e.g. 127.0.0.1:12346) |
| stream_upstream_server_name |
Stream upstream server name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.stream_upstream_server_connections_rate |
forwarded |
connections/s |
| nginxplus.stream_upstream_server_traffic_rate |
received, sent |
bytes/s |
| nginxplus.stream_upstream_server_state |
up, down, unavail, checking, unhealthy |
state |
| nginxplus.stream_upstream_server_downtime |
downtime |
seconds |
| nginxplus.stream_upstream_server_connections_count |
active |
connections |
resolver zone
These metrics refer to the resolver zone.
Labels:
| Label |
Description |
| resolver_zone |
resolver zone name |
Metrics:
| Metric |
Dimensions |
Unit |
| nginxplus.resolver_zone_requests_rate |
name, srv, addr |
requests/s |
| nginxplus.resolver_zone_responses_rate |
noerror, formerr, servfail, nxdomain, notimp, refused, timedout, unknown |
responses/s |
Setup
Prerequisites
Enable API
See Configure the API.
Configuration
File
The configuration file name is go.d/nginxplus.conf.
The file format is YAML. Generally, the format is:
update_every: 1
autodetection_retry: 0
jobs:
- name: some_name1
- name: some_name1
You can edit the configuration file using the edit-config script from the
Netdata config directory.
cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/nginxplus.conf
Options
The following options can be defined globally: update_every, autodetection_retry.
Config options
| Name |
Description |
Default |
Required |
| update_every |
Data collection frequency. |
1 |
|
| autodetection_retry |
Re-check interval in seconds. Zero means not to schedule re-check. |
0 |
|
| url |
Server URL. |
http://127.0.0.1 |
yes |
| timeout |
HTTP request timeout. |
1 |
|
| username |
Username for basic HTTP authentication. |
|
|
| password |
Password for basic HTTP authentication. |
|
|
| proxy_url |
Proxy URL. |
|
|
| proxy_username |
Username for proxy basic HTTP authentication. |
|
|
| proxy_password |
Password for proxy basic HTTP authentication. |
|
|
| method |
HTTP request method. |
GET |
|
| body |
HTTP request body. |
|
|
| headers |
HTTP request headers. |
|
|
| not_follow_redirects |
Redirect handling policy. Controls whether the client follows redirects. |
no |
|
| tls_skip_verify |
Server certificate chain and hostname validation policy. Controls whether the client performs this check. |
no |
|
| tls_ca |
Certification authority that the client uses when verifying the server's certificates. |
|
|
| tls_cert |
Client TLS certificate. |
|
|
| tls_key |
Client TLS key. |
|
|
Examples
Basic
A basic example configuration.
Config
jobs:
- name: local
url: http://127.0.0.1
HTTP authentication
Basic HTTP authentication.
Config
jobs:
- name: local
url: http://127.0.0.1
username: username
password: password
HTTPS with self-signed certificate
NGINX Plus with enabled HTTPS and self-signed certificate.
Config
jobs:
- name: local
url: https://127.0.0.1
tls_skip_verify: yes
Multi-instance
Note: When you define multiple jobs, their names must be unique.
Collecting metrics from local and remote instances.
Config
jobs:
- name: local
url: http://127.0.0.1
- name: remote
url: http://192.0.2.1
Troubleshooting
Debug mode
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