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

Pull requests and issues are welcome.