RethinkDB Prometheus exporter

RethinkDB statistics exporter for Prometheus.

Current version: v1.0.1 (RethinkDB v2.4)

Build and Run

Local build and run:

git clone https://github.com/rethinkdb/prometheus-exporter.git
cd prometheus-exporter
go build -o rethinkdb-exporter
./rethinkdb-exporter

Docker build and run:

git clone https://github.com/rethinkdb/prometheus-exporter.git
cd prometheus-exporter
docker build --tag rethinkdb-exporter .
docker run -d -p 9050:9050 rethinkdb-exporter

Parameters

Exporter can get parameters from config file, CLI flags or Environment variables.

CLI flag	Env var name	Config key	Description
--config	-	-	Config file (default to prometheus-exporter.yaml)
--web.listen-address string	WEB_LISTEN_ADDRESS	web.listen_address	Address to listen on for web interface and telemetry (default "0.0.0.0:9055")
--web.telemetry-path string	WEB_TELEMETRY_PATH	web.telemetry_path	Path under which to expose metrics (default "/metrics")
--db.address	DB_ADDRESSES	db.rethinkdb_addresses	Address of one or more nodes of rethinkdb (default [localhost:28015])
--db.enable-tls	DB_ENABLE_TLS	db.enable_tls	Enable to use tls connection
--db.ca	DB_CA	db.ca_file	Path to CA certificate file for tls connection
--db.cert	DB_CERT	db.certificate_file	Path to certificate file for tls connection
--db.key	DB_KEY	db.key_file	Path to key file for tls connection
--db.username	DB_USERNAME	db.username	Username of rethinkdb user
--db.password	DB_PASSWORD	db.password	Password of rethinkdb user
--db.pool-size	DB_POOL_SIZE	db.connection_pool_size	Size of connection pool to rethinkdb (default 5)
--log.debug	LOG_DEBUG	log.debug	Verbose debug logs
--log.json-output	LOG_JSON_OUTPUT	log.json_output	Use JSON output for logs
--stats.table-estimates	STATS_TABLE_ESTIMATES	stats.table_docs_estimates	Collect docs count estimates for each table

Config file can be yaml or json. Example:

web:
    listen_address: "0.0.0.0:9050"
db:
    rethinkdb_addresses:
      - "0.0.0.0:28015"
      - "0.0.0.0:28016"
stats:
    table_docs_estimates: true

Metrics

Most of the RethinkDB stats table are exported.

Optionally table rows count estimates can be exported from Table info.

Grafana dashboard

Grafana can be found here.

Contribution