Merge pull request #37 from weeyum/weeyum--add-newrelic-zk-tracing

Enable Newrelic Zookeeper transaction tracing

Gemfile

@@ -5,7 +5,11 @@ gem 'zk',                    '~> 1.9.3'
 gem 'unicorn',               '~> 4.8.3'
 gem 'unicorn-worker-killer', '~> 0.4.4'
 gem 'hash-deep-merge',       '~> 0.1.1'
-gem 'newrelic_rpm',          '~> 3.18.1', group: :newrelic
 gem 'oj',                    '~> 3.3.2'
 gem 'stomp',                 '~> 1.3.2'
 gem 'statsd-ruby',           '~> 1.2.1'
+
+group :newrelic do
+  gem 'newrelic_rpm',          '~> 3.18.1'
+  gem 'newrelic-zookeeper',    '~> 1.0.0'
+end

config.ru

@@ -22,6 +22,13 @@ end
 require 'statsd-ruby'
 STATSD = Statsd.new(opts['statsd_host'], opts['statsd_port'])
 
+begin
+  require 'newrelic_rpm'
+  require 'newrelic-zookeeper'
+rescue LoadError
+  log.info "Newrelic not found, skipping..."
+end
+
 # prepare to exit cleanly
 $EXIT = false
 
@@ -87,11 +94,5 @@ Optica.set :store, store
 Optica.set :events, events
 Optica.set :ip_check, ip_check
 
-begin
-    require 'newrelic_rpm'
-rescue LoadError
-    log.info "Newrelic not found, skipping..."
-end
-
 log.info "Starting sinatra server..."
 run Optica