Class: HerokuMongoWatcher::DataRow

Inherits:
Object
  • Object
show all
Defined in:
lib/heroku_mongo_watcher/data_row.rb

Constant Summary collapse

@@attributes =

Heroku Attributes

[:total_requests, :total_service, :total_wait,
:total_queue, :total_router_errors, :total_web_errors,
:max_service, :slowest_request, :errors, :requests,:dynos]

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DataRow

Returns a new instance of DataRow.



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 17

def initialize
  @@attributes.each { |attr| send "#{attr}=", 0 }
  self.slowest_request = nil
  self.errors = {}
  self.requests = {}
end

Class Method Details



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 48

def self.print_header
  puts
  puts "|<---- heroku stats ------------------------------------------------------------------->|<----mongo stats ------------------------------------------------>|"
  puts "| dyno reqs    art   max    r_err  w_err  %err   wait  queue   slowest                  |insrt query updt  flt  lck   lck:mrq qr|qw   netI/O      time      |"
end

Instance Method Details

#add_error(error_line) ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 141

def add_error(error_line)
  if self.errors.has_key? error_line
    self.errors[error_line] = self.errors[error_line] + 1
  else
    self.errors[error_line] = 1
  end
end

#average_queue ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 36

def average_queue
  total_requests > 0 ? total_queue / total_requests : 'N/A'
end

#average_response_time ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 28

def average_response_time
  total_requests > 0 ? total_service / total_requests : 'N/A'
end

#average_wait ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 32

def average_wait
  total_requests > 0 ? total_wait / total_requests : 'N/A'
end

#config ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 24

def config
  HerokuMongoWatcher::Configuration.instance.config
end

#error_content_for_email ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 54

def error_content_for_email
   content = []
   if @errors && @errors.keys && @errors.keys.length > 0
     content << ""
     content << "Errors"
     @errors.each do |error,count|
       content <<  "\t\t[#{count}] #{error}"
     end
   end
   content
end

#error_rate ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 40

def error_rate
  total_requests > 0 ? ((((total_web_errors + total_router_errors)*(1.0)) / total_requests)* 100).round(2) : 'N/A'
end

#lock_request_ratio ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 44

def lock_request_ratio
  total_requests > 0 ? ((((Float(locked) * 1.0)/ total_requests)) * 1_000).round(2) : 'N/A'
end

#print_row ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 176

def print_row
  print_hash(@errors) if config[:print_errors]
  print_hash(@requests) if config[:print_requests]

  color_print @dynos, length: 4
  color_print @total_requests, warning: 30_000, critical: 50_000
  color_print average_response_time, warning: 500, critical: 1000, bold: true
  color_print @max_service, warning: 20_000
  color_print @total_router_errors, warning: 1
  color_print @total_web_errors, warning: 1
  color_print error_rate, warning: 1, critical: 3, percent: true
  color_print @total_wait #, warning: 10, critical: 100
  color_print @total_queue #, warning: 10, critical: 100
  color_print @slowest_request, length: 28, slice: 25
  print '|'
  color_print @inserts, length: 5
  color_print @queries, length: 6
  color_print @updates, length: 5
  color_print @faults, length: 5
  color_print @locked, bold: true, warning: 40, critical: 70, length: 6, percent: true
  color_print lock_request_ratio
  color_print @qrw
  color_print "#{@net_in}/#{@net_out}", length: 10
  color_print @mongo_time, length: 13
  printf "\n"
end

#process_heroku_router_line(line) ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 78

def process_heroku_router_line(line)
  items = line.split

  self.total_requests +=1

  if line =~ /Error/
    # Note: The lion share of these are timeouts
    #Full list here: https://devcenter.heroku.com/articles/error-codes
    self.total_router_errors += 1
    time = items[0]
    process = items[1]
    clean_line = line.sub(time, '').sub(process, '').strip
    add_error(clean_line)
  else
    time = items[0]
    process = items[1]
    http_type = items[2]
    url = items[3]
    dyno = items[4].split('=').last if items[4]
    queue = items[5].split('=').last.sub('ms', '') if items[5]
    wait = items[6].split('=').last.sub('ms', '') if items[6]
    service = items[7].split('=').last.sub('ms', '') if items[7]
    status = items[8].split('=').last if items[8]
    bytes = items[9].split('=').last if items[9]

    path = extract_path(url)

    if is_number?(service) && is_number?(wait) && is_number?(queue)
      self.total_service += Integer(service) if service
      self.total_wait += Integer(wait) if wait
      self.total_queue += Integer(queue) if queue
      if Integer(service) > self.max_service
        self.max_service = Integer(service)
        self.slowest_request = path
      end
    end

    if self.requests.has_key? path
      self.requests[path] = self.requests[path] + 1
    else
      self.requests[path] = 1
    end


  end
end

#process_heroku_web_line(line) ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 125

def process_heroku_web_line(line)
  # Only care about errors
  error_messages = config[:error_messages]

  if error_messages.any? { |mes| line.include? mes }
    items = line.split
    time = items[0]
    process = items[1]
    clean_line = line.sub(time, '').sub(process, '').strip

    self.total_web_errors += 1
    add_error(clean_line)
  end

end

#process_mongo_line(line) ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 149

def process_mongo_line(line)
  items = line.split

  @inserts = items[0]
  @queries = items[1]
  @updates = items[2]
  delete = items[3]
  getmore = items[4]
  command = items[5]
  flushes = items[6]
  mapped = items[7]
  vsize = items[8]
  res = items[9]
  @faults = items[10]
  @locked = items[11]
  idx_miss = items[12]
  @qrw = items[13]
  arw = items[14]
  @net_in = items[15]
  @net_out = items[16]
  conn = items[17]
  set = items[18]
  repl = items[19]
  @mongo_time = items[20]

end

#request_content_for_email ⇒ Object 



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# File 'lib/heroku_mongo_watcher/data_row.rb', line 66

def request_content_for_email
   content = []
   if @requests && @requests.keys && @requests.keys.length > 0
     content << ""
     content << "Requests"
     @requests.sort_by{|req,count| -count}.first(10).each do |row|
       content << "\t\t[#{row.last}] #{row.first}"
     end
   end
   content
end