NATS

Auto-Discovery

Health Check

Metrics

Logs

To enable metrics gathering, you need to enable the NATS monitoring endpoint on your server, see NATS Server Monitoring for details.

By default, the agent assumes that the monitoring endpoint is enabled on port 8222, if your server uses another port, you can change it in the configuration.

If some auto-detected parameters are wrong, you can manually override them by adding the following to /etc/glouton/conf.d/99-local.conf:

service:
[...]

  # For a NATS running outside a container
  - type: "nats"
    address: "127.0.0.1"
    port: 4222
    stats_port: 8222

  # For an additional NATS running outside a container
  - type: "nats"
    instance: "NAME_ASSOCIATED_WITH_YOUR_ADDITIONAL_SERVICE"
    address: "127.0.0.1"
    port: 4222
    stats_port: 8222

  # For a NATS running in a Docker container
  - type: "nats"
    instance: "CONTAINER_NAME"
    port: 4222
    stats_port: 8222

The following metrics are gathered:

Metric	Description
service_status	Status of NATS
nats_uptime	Time since the NATS server is started in nanoseconds
nats_routes	Number of registered routes
nats_slow_consumers	Number of slow consumers
nats_subscriptions	Number of active subscriptions
nats_in_bytes	Amount of incoming bytes
nats_out_bytes	Amount of outgoing bytes
nats_in_msgs	Number of incoming messages
nats_out_msgs	Number of outgoing messages
nats_connections	Number of currently active clients
nats_total_connections	Total number of created clients