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Collecting Runtime Stats

RhoConnect provides a simple stats rack middleware for collecting runtime information on your application. These stats are accessible from the REST API and some default graphs are available from the web console.

Enabling Stats

To enable stats in your RhoConnect application, simply turn on the stats middleware by editing config.ru:

Rhoconnect::Server.enable  :stats

A complete config.ru might look like:

# Try to load vendor-ed rhoconnect, otherwise load the gem
  require 'vendor/rhoconnect/lib/rhoconnect/server'
  require 'vendor/rhoconnect/lib/rhoconnect/console/server'
rescue LoadError
  require 'rhoconnect/server'
  require 'rhoconnect/console/server'

# By default, turn on the resque web console
require 'resque/server'

ROOT_PATH = File.expand_path(File.dirname(__FILE__))

# Rhoconnect server flags
Rhoconnect::Server.disable :run
Rhoconnect::Server.disable :clean_trace
Rhoconnect::Server.enable  :raise_errors
Rhoconnect::Server.set     :secret,      '<changeme>'
Rhoconnect::Server.set     :root,        ROOT_PATH
Rhoconnect::Server.enable  :stats
Rhoconnect::Server.use     Rack::Static, :urls => ["/data"], :root => Rhoconnect::Server.root

# Load our rhoconnect application
require './application'

# Setup the url map
run Rack::URLMap.new \
    "/"         => Rhoconnect::Server.new,
    "/resque"   => Resque::Server.new, # If you don't want resque frontend, disable it here
    "/console"  => RhoconnectConsole::Server.new # If you don't want rhoconnect frontend, disable it here

Now just restart your rhoconnect application:

$ rhoconnect restart

And navigate to the ‘Statistics’ tab in your RhoConnect console:

$ rhoconnect web

Stats Console

You should see graphs, organized by categories:

RhoConnect statistics are organized into the following categories:

  • User Count - # of users stored in redis

  • Device Count - # of devices currently registered with RhoConnect

  • HTTP Timing - # average HTTP request time by URL

  • Source Timing - # average source adapter execution time by method

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