2 # make sure we are sending data to backend
4 alarm: backend_last_buffering
5 on: netdata.backend_metrics
6 calc: $now - $last_collected_t
9 warn: $this > (($status >= $WARNING) ? ($update_every) : ( 5 * $update_every))
10 crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
11 delay: down 5m multiplier 1.5 max 1h
12 info: number of seconds since the last successful buffering of backend data
15 alarm: backend_metrics_sent
16 on: netdata.backend_metrics
18 calc: $sent * 100 / $buffered
21 delay: down 5m multiplier 1.5 max 1h
22 info: percentage of metrics sent to the backend server
25 alarm: backend_metrics_lost
26 on: netdata.backend_metrics
31 delay: down 5m multiplier 1.5 max 1h
32 info: number of metrics lost due to repeating failures to contact the backend server
36 on: netdata.backend_latency
38 calc: $latency * 100 / ($update_every * 1000)
42 delay: down 5m multiplier 1.5 max 1h
43 info: the percentage of time between iterations needed by the backend time to process the data sent by netdata