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# 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
       os: linux
    hosts: *
     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
       os: linux
    hosts: *
   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: Host 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
       os: linux
    hosts: *
   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
       os: linux
    hosts: *
   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