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#!/usr/bin/env ruby
# by Dan Manges, http://www.dcmanges.com/blog/rails-application-visualization-with-munin
def output_config
puts <<-END
graph_category App
graph_title Passenger memory stats
graph_vlabel count
memory.label memory
END
exit 0
end
def output_values
status = `/usr/sbin/passenger-memory-stats | tail -1`
unless $?.success?
$stderr.puts "failed executing passenger-memory-stats"
exit 1
end
status =~ /(\d+\.\d+)/
puts "memory.value #{$1}"
end
if ARGV[0] == "config"
output_config
else
output_values
end
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