jkutner

app_path: "<%= trinidad_home %>/current"
trinidad_options: "-e production"
jruby_home: "<%= jruby_home %>"
ruby_compat_version: RUBY1_8
trinidad_name: Trinidad
jsvc_path: "/usr/bin/jsvc"
java_home: "/usr/lib/jvm/java-6-openjdk/jre"
output_path: "/etc/init.d"
pid_file: "<%= trinidad_home %>/shared/pids/trinidad.pid"
log_file: "<%= trinidad_home %>/shared/log/trinidad.log"

jkutner

require 'benchmark'

def factorial_repeat(k, x)
  k.times { x.downto(1).inject(:*) }
end

def run(i, k, x)
  i.downto(1).map do
    Thread.new { factorial_repeat(k, x) }
  end.each { |t| t.join }

jkutner

13:38:03,923 INFO  [org.apache.coyote.http11.Http11Protocol] (MSC service thread 1-1) Starting Coyote HTTP/1.1 on http--127.0.0.1-8080
13:38:04,412 INFO  [org.jboss.as.mail.extension] (MSC service thread 1-1) JBAS015400: Bound mail session [java:jboss/mail/Default]
13:38:04,646 WARN  [org.jboss.as.messaging] (MSC service thread 1-1) JBAS011600: AIO wasn't located on this platform, it will fall back to using pure Java NIO. If your platform is Linux, install LibAIO to enable the AIO journal
13:38:04,822 INFO  [org.hornetq.core.server.impl.HornetQServerImpl] (MSC service thread 1-1) live server is starting with configuration HornetQ Configuration (clustered=false,backup=false,sharedStore=true,journalDirectory=/opt/torquebox/jboss/standalone/data/messagingjournal,bindingsDirectory=/opt/torquebox/jboss/standalone/data/messagingbindings,largeMessagesDirectory=/opt/torquebox/jboss/standalone/data/messaginglargemessages,pagingDirectory=/opt/torquebox/jboss/standalone/data/messagingpaging)
13:38:04,826 INFO  [org.horn

jkutner

08:42:21,982 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-2) JBAS015876: Starting deployment of "twitalytics-knob.yml"
08:42:23,441 INFO  [org.torquebox.core] (MSC service thread 1-2) evaling: /opt/torquebox/jboss/standalone/tmp/vfs/deployment6e66eb28ebd67436/twitalytics.knob-956e8e8043cf7666/config/torquebox.rb
08:42:23,945 ERROR [stderr] (MSC service thread 1-2) STOMP HOSTS: [localhost]
08:42:24,942 ERROR [stderr] (MSC service thread 1-2) webhosts: []
08:42:24,942 ERROR [stderr] (MSC service thread 1-2) stomphosts: [localhost]
08:42:24,943 ERROR [stderr] (MSC service thread 1-2) DEPLOY STANDALONE SESSION MANAGER
08:42:25,181 INFO  [org.hornetq.core.server.impl.HornetQServerImpl] (MSC service thread 1-1) trying to deploy queue jms.topic./topics/statuses
08:42:25,184 INFO  [org.torquebox.stomp.binding] (MSC service thread 1-2) Advertising STOMP binding: ws://localhost:8675/
08:42:25,232 INFO  [org.jboss.as.messaging] (MSC service thread 1-1) JBAS011601: Bound messaging object to jndi name java

jkutner

14:19:56,006 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-3) MSC00001: Failed to start service jboss.deployment.unit."twitalytics-knob.yml".ha-singleton.coordinator: org.jboss.msc.service.StartException in service jboss.deployment.unit."twitalytics-knob.yml".ha-singleton.coordinator: java.lang.IllegalArgumentException: failed to start server socket
	at org.projectodd.polyglot.hasingleton.HASingletonCoordinatorService.start(HASingletonCoordinatorService.java:52)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [classes.jar:1.6.0_29]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [classes.jar:1.6.0_29]
	at java.lang.Thread.run(Thread.java:680) [classes.jar:1.6.0_

jkutner

$ torquebox run --clustered

$ JBOSS_OPTS="-Djboss.node.name=node2 \
              -Djboss.server.data.dir=/tmp/node2 \
              -Djboss.socket.binding.port-offset=100" \
  torquebox run --clustered 

jkutner

Two Applications, One Trinidad Server

One of the advantages of running Ruby on the JVM is that we can deploy multiple applications to the same webserver. Using one JRuby webserver means that there is only one process to manage, monitor, start and stop. Your sysadmins will thank you.

But having mutliple application on one virtual machine also means we can configure them to share resources, thus reducing the overhead required for a production server. In this post, we'll walk through an example of deploying two applications to one Trinidad server.

Trinidad is a light-weight JRuby web server that runs Rails and Rack applications in an embedded Apache Tomcat container. Let's install it by running this command:

$ gem install trinidad -v 1.3.4

jkutner

require 'rubygems'
require 'sinatra'
require 'active_record'

get '/' do
  ActiveRecord::Base.establish_connection(
    :adapter => "jdbcpostgresql",
    :jndi => "java:/comp/env/jdbc/trinidad"
  )

jkutner

$LOAD_PATH << $APP_LOAD_PATH  #set the load path from the APP_LOAD_PATH binding

if $RACK_ENV == 'production'
  ENV['GEM_PATH'] = "#{File.join($RULE_SERVER_HOME, 'vendor/jruby/1.8')}:#{File.join($TORQUEBOX_HOME, 'jruby/lib/ruby/gems/1.8')}"
  ENV['GEM_HOME'] = File.join($RULE_SERVER_HOME, 'vendor/jruby/1.8')
else
  puts 'Using global GEM_HOME directory.'
end

require 'rubygems'

jkutner

TorqueBox.configure do
  job DeleteOldStatuses do
    cron "0 0/5 * * * ?"
    singleton true
    config do
      max_age 30.days.ago
    end
  end
end