Puppet Function: pupmod::java_max_memory

Defined in:
functions/java_max_memory.pp
Function type:
Puppet Language

Overview

pupmod::java_max_memory(Integer[1] $max_active_instances = 1) ⇒ Pupmod::Memory

Provides a reasonable calculation for the reserved code cache value for JRuby for a system

Parameters:

  • max_active_instances (Integer[1]) (defaults to: 1)

Returns:

  • (Pupmod::Memory) —

    The maximum number of JRuby instances that should be active on the “puppetserver“



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# File 'functions/java_max_memory.pp', line 9

function pupmod::java_max_memory (
  Integer[1] $max_active_instances = 1,
) {
  $processor_count = pick(fact('processors.count'), 1)
  $total_system_memory = Numeric(fact('memorysize_mb'))

  if $processor_count < 8 {
    $per_instance_mem = 512
  } elsif $processor_count < 16 {
    $per_instance_mem = 768
  } else {
    $per_instance_mem = 1024
  }

  if $total_system_memory < 1024 {
    $java_max_memory = '50%'
  } else {
    $max_instances_mem_mb = $max_active_instances * $per_instance_mem
    $eighty_percent_mem_mb = floor($total_system_memory * 0.8)

    $java_mem_mb = min($eighty_percent_mem_mb, $max_instances_mem_mb)

    $java_max_memory = "${java_mem_mb}m"
  }

  $java_max_memory
}