This document provides an overview of ZeroMQ, a messaging library. It introduces the speaker, Ashic Mahtab, and his background working with distributed systems and messaging. It then outlines several ZeroMQ patterns including client-server, pub-sub, push-pull for distributed task queues, and a multi-server, multi-client pattern using a broker. The document poses some benefits and drawbacks of ZeroMQ and leaves time for questions.

1. ZeroMQ
A Whole Bunch of Awesome
[C# Edition]
Ashic Mahtab
@ashic
http://www.heartysoft.com
ashic@heartysoft.com

2. About me
• Do tech stuff. Play about with distributed, scalable systems.
Messaging. DDD. CQRS. Event Sourcing.
• Mainly .NET. Like F#, Haskell, Erlang, CSP, maybe even Scala…Ooh
look…shiny!!
• ASP.NET MVP since 2009, moderator of asp.net
• Oh yeah, and ZeroMQ.
• London ZeroMQ User Group [ZeroMQLondon]
• Lifelong student…(Where does this learning s@$£ end!!)

3. Code:
https://github.com/ashic/0MQOredev2013

4. Messaging

5. Message Queues

6. ZeroMQ

7. Contexts - Sockets

8. Show Me Ze Codez

9. Client - Server
• Single Server – Multi Client
• Synchronous Server (blech!)
• Messages get “queued” 
1. Request
Client
Server
2. Response

10. Pub - Sub
• Topic Based Pub Sub
• Binary prefix based subscriptions
• Typical pub-sub problems apply

11. To Ze Cloudzzzz
• Use Push Pull
• Source enqueues tasks
• Workers work
• Results are collected in Drain
Source
Worker
Worker
Drain
Worker

12. Multi Server, Multi Client
• What it says on the tin
Client
Client
Client
Broker
Worker
Worker

13. Benefits

14. Drawbacks

15. Questions?

16. Thank You.