Class: Fluent::ApacheModStatus

Inherits:
Input
  • Object
show all
Defined in:
lib/fluent/plugin/in_apache_modstatus.rb

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/in_apache_modstatus.rb', line 13

def configure(conf)
  super
  require 'net/http'
  require 'uri'
end

#output ⇒ Object 



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# File 'lib/fluent/plugin/in_apache_modstatus.rb', line 35

def output

  record = {}

  page_content = Net::HTTP.get(URI.parse(@url))
  status_values = page_content.lines.map(&:chomp)
  status_values.each do |item|
    if item.include? "Scoreboard: "
#       Scoreboard Key:
#       "_" Waiting for Connection, "S" Starting up, "R" Reading Request,
#       "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
#       "C" Closing connection, "L" Logging, "G" Gracefully finishing,
#       "I" Idle cleanup of worker, "." Open slot with no current process        
      values = item.split(": ")
      scores = values[1].split(//)
      
      scoreboard = {
        "wait" => 0,
        "start" => 0,
        "read" => 0,
        "reply" => 0,
        "keepalive" => 0,
        "dns" => 0,
        "closing" => 0,
        "log" => 0,
        "graceful" => 0,
        "cleanup" => 0,
        "openslot" => 0
        }
      
      scores.each do |score|
        if score == "_"
          scoreboard["wait"] = scoreboard["wait"] + 1
        elsif score == "S"
          scoreboard["start"] = scoreboard["start"] + 1
        elsif score == "R"
          scoreboard["read"] = scoreboard["read"] + 1
        elsif score == "W"
          scoreboard["reply"] = scoreboard["reply"] + 1
        elsif score == "K"
          scoreboard["keepalive"] = scoreboard["keepalive"] + 1
        elsif score == "D"
          scoreboard["dns"] = scoreboard["dns"] + 1
        elsif score == "C"
          scoreboard["closing"] = scoreboard["closing"] + 1
        elsif score == "L"
          scoreboard["log"] = scoreboard["log"] + 1
        elsif score == "G"
          scoreboard["graceful"] = scoreboard["graceful"] + 1
        elsif score == "I"
          scoreboard["cleanup"] = scoreboard["cleanup"] + 1
        elsif score == "."
          scoreboard["openslot"] = scoreboard["openslot"] + 1
        end
      end
      
      scoreboard.each do |key,score|
        record["scoreboard_count_#{key}"] = score
      end
      
    elsif item.include? ": "
      values = item.split(": ")
      values[0].downcase!
      values[0].gsub!(/ /,"_")
      if valid_float(values[1])
        record[values[0]] = values[1].to_f
      else
        record[values[0]] = values[1]
      end
    end
  end
  

  time = Fluent::Engine.now
  router.emit(tag,time,record)
end

#run ⇒ Object 



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# File 'lib/fluent/plugin/in_apache_modstatus.rb', line 28

def run
  while true
    output
    sleep @refresh_interval
  end
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/in_apache_modstatus.rb', line 112

def shutdown
  @watcher.terminate
  @watcher.join

end

#start ⇒ Object 



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# File 'lib/fluent/plugin/in_apache_modstatus.rb', line 23

def start
  super
  @watcher = Thread.new(&method(:run))
end

#valid_float(value) ⇒ Object 



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# File 'lib/fluent/plugin/in_apache_modstatus.rb', line 19

def valid_float(value)
  !!Float(value) rescue false
end