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Server : Apache/2.4.41 (Ubuntu)
System : Linux cls 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64
User : iscuser ( 1001)
PHP Version : 7.4.12
Disable Function : shell_exec,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare,
Directory :  /usr/lib/netdata/conf.d/health.d/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :
Current File : //usr/lib/netdata/conf.d/health.d/backend.conf
# make sure we are sending data to backend

   alarm: backend_last_buffering
      on: netdata.backend_metrics
    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
   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

   alarm: backend_metrics_lost
      on: netdata.backend_metrics
   units: metrics
    calc: abs($lost)
   every: 10s
    crit: ($this != 0) || ($status == $CRITICAL && abs($sent) == 0)
   delay: down 5m multiplier 1.5 max 1h
    info: number of metrics lost due to repeating failures to contact the backend server
      to: dba

# this chart has been removed from netdata
#   alarm: backend_slow
#      on: netdata.backend_latency
#   units: %
#    calc: $latency * 100 / ($update_every * 1000)
#   every: 10s
#    warn: $this > 50
#    crit: $this > 100
#   delay: down 5m multiplier 1.5 max 1h
#    info: the percentage of time between iterations needed by the backend time to process the data sent by netdata
#      to: dba

Samx