Final test: Observability: metrics, alerts, logs

Read the output

What does this answer say about the network load right now?

$ promtool query instant http://localhost:9090 node_network_receive_bytes_total
node_network_receive_bytes_total{device="eth1", instance="localhost:9100", job="node"} => 305836280 @[1792644617.589]

• A Nothing — you need the rate, rate(…[1m]).
• B The load is high — the counter is over 100 million.
• C The machine receives about 300 MB per second.