Sha256: 02647690e043cc0e74f21c67cabc77b3eb932b947af9fe6f294c640cf26a3439
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Versions: 9
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Contents
module NewRelic::Agent
class MemorySampler
def initialize
if RUBY_PLATFORM =~ /java/
platform = %x[uname -s].downcase
else
platform = RUBY_PLATFORM.downcase
end
# macos, linux, solaris
if platform =~ /darwin|linux/
@ps = "ps -o rsz"
elsif platform =~ /freebsd/
@ps = "ps -o rss"
elsif platform =~ /solaris/
@ps = "/usr/bin/ps -o rss -p"
end
if !@ps
raise "Unsupported platform for getting memory: #{platform}"
end
if @ps
@broken = false
agent = NewRelic::Agent.instance
agent.stats_engine.add_sampled_metric("Memory/Physical") do |stats|
if !@broken
begin
process = $$
memory = `#{@ps} #{process}`.split("\n")[1].to_f / 1024
# if for some reason the ps command doesn't work on the resident os,
# then don't execute it any more.
if memory >= 0
stats.record_data_point memory
else
NewRelic::Agent.instance.log.error "Error attempting to determine resident memory for pid #{process} (got result of #{memory}, this process = #{$$}). Disabling this metric."
NewRelic::Agent.instance.log.error "Faulty command: `#{@ps}`"
@broken = true
end
rescue Exception => e
if e.is_a? Errno::ENOMEM
NewRelic::Agent.instance.log.error "Got OOM trying to determine process memory usage"
else
raise e
end
end
end
end
end
end
end
end
NewRelic::Agent::MemorySampler.new
Version data entries
9 entries across 9 versions & 1 rubygems