Software: Apache/2.4.41 (Ubuntu). PHP/8.0.30 

uname -a: Linux apirnd 5.4.0-204-generic #224-Ubuntu SMP Thu Dec 5 13:38:28 UTC 2024 x86_64 

uid=33(www-data) gid=33(www-data) groups=33(www-data) 

Safe-mode: OFF (not secure)

/usr/lib/netdata/conf.d/health.d/   drwxrwxr-x
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Viewing file:     backend.conf (1.33 KB)      -rw-r--r--

# Alert that backends subsystem will be disabled soon
    alarm: backend_metrics_eol
       on: netdata.backend_metrics
    class: Errors
     type: Netdata
component: Exporting engine
    units: boolean
     calc: $now - $last_collected_t
    every: 1m
     warn: $this > 0
    delay: down 5m multiplier 1.5 max 1h
     info: the backends subsystem is deprecated and will be removed soon. Migrate your configuration to exporting.conf.
       to: sysadmin

# make sure we are sending data to backend

    alarm: backend_last_buffering
       on: netdata.backend_metrics
    class: Latency
     type: Netdata
component: Exporting engine
     calc: $now - $last_collected_t
    units: seconds ago
    every: 10s
     warn: $this > (($status >= $WARNING)  ? ($update_every) : ( 5 * $update_every))
     crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
    delay: down 5m multiplier 1.5 max 1h
     info: number of seconds since the last successful buffering of backend data
       to: dba

    alarm: backend_metrics_sent
       on: netdata.backend_metrics
    class: Workload
     type: Netdata
component: Exporting engine
    units: %
     calc: abs($sent) * 100 / abs($buffered)
    every: 10s
     warn: $this != 100
    delay: down 5m multiplier 1.5 max 1h
     info: percentage of metrics sent to the backend server
       to: dba