# you can disable an alarm notification by setting the 'to' line to: silent

# Calculate the base trigger point for the load average alarms.
# This is the maximum number of CPU's in the system over the past 1
# minute, with a special case for a single CPU of setting the trigger at 2.
      alarm: load_cpu_number
         on: system.load
      class: Utilization
       type: System
  component: Load
host labels: _os=linux
       calc: ($active_processors == nan or $active_processors == 0) ? (nan) : ( ($active_processors < 2) ? ( 2 ) : ( $active_processors ) )
      units: cpus
      every: 1m
       info: Number of active CPU cores in the system

# Send alarms if the load average is unusually high.
# These intentionally _do not_ calculate the average over the sampled
# time period because the values being checked already are averages.

      alarm: load_average_15
         on: system.load
      class: Utilization
       type: System
  component: Load
host labels: _os=linux
     lookup: max -1m unaligned of load15
       calc: ($load_cpu_number == nan) ? (nan) : ($this)
      units: load
      every: 1m
       warn: ($this * 100 / $load_cpu_number) > (($status >= $WARNING) ? 175 : 200)
      delay: down 15m multiplier 1.5 max 1h
    summary: System load average (15 minutes)
       info: System load average for the past 15 minutes
         to: silent

      alarm: load_average_5
         on: system.load
      class: Utilization
       type: System
  component: Load
host labels: _os=linux
     lookup: max -1m unaligned of load5
       calc: ($load_cpu_number == nan) ? (nan) : ($this)
      units: load
      every: 1m
       warn: ($this * 100 / $load_cpu_number) > (($status >= $WARNING) ? 350 : 400)
      delay: down 15m multiplier 1.5 max 1h
    summary: System load average (5 minutes)
       info: System load average for the past 5 minutes
         to: silent

      alarm: load_average_1
         on: system.load
      class: Utilization
       type: System
  component: Load
host labels: _os=linux
     lookup: max -1m unaligned of load1
       calc: ($load_cpu_number == nan) ? (nan) : ($this)
      units: load
      every: 1m
       warn: ($this * 100 / $load_cpu_number) > (($status >= $WARNING) ? 700 : 800)
      delay: down 15m multiplier 1.5 max 1h
    summary: System load average (1 minute)
       info: System load average for the past 1 minute
         to: silent
