TorqueBox from Dec. 2011 URUG

Slide 1

Slide 1 text

There’s Javas in my rubies!

Slide 2

Slide 2 text

What is TorqueBox? A JVM-based, prepackaged server stack for JRuby Rack apps (Sinatra, Rails, ...): Web application server (JBoss), Messaging (HornetQ), Services (like Daemons), Scheduling (like Cron), designed for scalability & availability

Slide 3

Slide 3 text

Our problem (corner case): Oracle + Ruby = :-( Oracle + JDBC = :-)

Slide 4

Slide 4 text

More problems (typical): • Scalability • High availability • Complex server stack • Distribution of caching, sessions, etc. • Much easier to scale up than out

Slide 5

Slide 5 text

O HAI JVM • 1st Class JDBC drivers • Concurrency via real threads • Fast! • It’s real Ruby

Slide 6

Slide 6 text

What’s wrong with Ruby on JVM? • WAR ﬁles break continuous deployment and require server restarts • Increases server stack complexity • XML hell • Fewer people doing it = less support

Slide 7

Slide 7 text

Enter TorqueBox YAML conﬁg (the NoXML) Hot Redeploys (no restarts!) Streamlined server setup & monitoring Easy Deployment (cap deploy) Baked-in high-scalability & availability Great community & support (Red Hat)

Slide 8

Slide 8 text

Tech Stack

Slide 9

Slide 9 text

Tech Stack (simpler)

Slide 10

Slide 10 text

Tech Stack: JBoss AS Tech Stack: JBoss AS

Slide 11

Slide 11 text

Tech Stack: JBoss AS Multi-app friendly Load Balancing Clustering High Availability Rock solid

Slide 12

Slide 12 text

Tech Stack: JBoss AS Tech Stack: Inﬁnispan

Slide 13

Slide 13 text

Tech Stack: Inﬁnispan Cache Sessions Or use it as a DataMapper clustered NoSQL store

Slide 14

Slide 14 text

Tech Stack: HornetQ

Slide 15

Slide 15 text

Tech Stack: HornetQ Set up queues via YAML: messaging: /queues/puppies: MyHandler: concurrency: 5 config: some_key: some_value Or at runtime: @queue = TorqueBox::Messaging::Queue.new("/queue/foo") @queue.publish( “Oh, puppies!” )

Slide 16

Slide 16 text

Tech Stack: HornetQ Crazy fast Optionally durable Backgroundable: include TorqueBox::Backgroundable always_background :do_something_slowly

Slide 17

Slide 17 text

Tech Stack: Scheduled Jobs It’s not cron! Conﬁgure via YAML JGroups runs tasks on all nodes or as singleton # config/torquebox.yml jobs: monthly_reminder: description: sends reminders job: MyJob cron: ‘0 0 0 1 * ?’ singleton: true # app/jobs/my_job.rb class MyJob def run() # your code here end end

Slide 18

Slide 18 text

Tech Stack: Services Daemon-like Easy to monitor JGroups: All nodes, single-node, failover # app/services/my_service.rb class MyServer def initialize(opts) end def start end def stop end end

Slide 19

Slide 19 text

Tech Stack: Backstage

Slide 20

Slide 20 text

Tech Stack: Backstage Sinatra app for centralized monitoring Manage entire stack from one view

Slide 21

Slide 21 text

Oh my gosh so much more Capistrano support (or archive deploy, or web-based git deploy in StompBox) Meta-transactions (incl. ActiveRecord, queue, Inﬁnispan) Client-side async with Stomplets RSpec helpers

Slide 22

Slide 22 text

Challenges Slow-ish boot time for dev Larger base memory footprint Ruby 1.9 is “edge” “The TorqueBox Way”: Bundled stack is largely what you get If using advanced features (like messaging), you need to develop against TorqueBox, not ‘rails s’