Slides were presented in one of #Dubytes session held by #dubizzle every month. Aim was to discuss What is RabbitMQ and how dubizzle's uses it in the journey to a micro-services architecture. With demos and explanation on how RabbitMQ works and the concept behind messaging. This is also a follow-up on a recently published blog post on how to implement a RabbitMQ cluster on Amazon Web Services which can be found on: https://goo.gl/tFMVrG

1. dubizzle’s guide to
Ibrahim AbdelFattah
RabbitMQ

2. Ibrahim AbdelFattah Mohamed
Software Engineer - dubizzle
@bingorabbit
https://linkedin.com/in/bingorabbit
https://github.com/bingorabbit

4. What is
RabbitMQ?

5. Messaging?..

6. Bob James
Hey, Bob, we need to build
something extraordinary.....
...
We need to build an online
photo-sharing web app..
And we need it tomorrow..
What?
Ok..Cool..

7. User registers an account
User verifies account
User Uploads Picture
Picture gets uploaded
User gets link

8. 1 day later..

9. Bob James
Hey, Bob..Hey James
I finished and deployed.. Great, let me get back to you..
Cool..

10. 2 days later..

11. Bob James
Hey, Bob..Now what..
OH SH*T
We need to change a minor thing in the extraordinary
image-sharing app..
And we need it tomorrow.....

14. User registers an account
User verifies account
User Uploads Picture
Picture gets uploaded # User is waiting
Picture gets resized # User is waiting
Picture is shared on Twitter # User is waiting
User gets link # Finally!

15. Pub-Sub
pattern
Publisher SubscriberQueue
* https://goo.gl/aQwdpb

18. User registers an account
User verifies account
User Uploads Picture
Picture gets uploaded # User is waiting
Picture gets resized # User is waiting
Picture is posted on Instagram # User is waiting
User gets link # Finally!

19. User register an account
User verify account
When User Uploads Picture # Publisher
Publish picture.uploaded event/message
On picture.uploaded event # Subscriber
Service 1: Resize Picture
Service 2: Post Picture to Twitter
Service 3: Generate and Send a link

20. Pub-Sub
pattern
Publisher SubscriberQueue

21. Messaging

22. RabbitMQ
Pros
https://goo.gl/z5QXjp

23. Tested&ProvenRobust technology..

24. RabbitMQ
..is the most widely deployed open source message broker..

25. Plugins/Configurations

26. Management
Interface

28. Multiple Clients
Programming languages support

29. Multiple
Protocols
https://bit.ly/rmq-protocols

30. Two way
acknowledgements..

31. Community

32. Performance
Demo Cluster Specs

33. 3
Nodes
4
GB of RAM
~5
GB of Storage

34. Kmessages200
KB/message25

35. 19.7Seconds*
11289.574062022333 messages/sec
11k messages/sec
0.03189 ms avg latency
28.0 ms max latency
(*) From client side only..

36. 0Message Loss
%

37. Kmessages100
KB/message50

38. ~2500
(*) from server side only..
Messages/Seconds*
Benchmarks with other configurations reached higher numbers..

40. RabbitMQ
Cons

41. You will have to do
EVERYTHING!

42. Synchronization

43. Let’s see..

45. dubizzle tech blog
https://goo.gl/7QK7xX

46. Create your own AWS #RabbitMQ Cluster,
the #dubizzle way
https://goo.gl/tFMVrG

47. Thanks..@bingorabbit - https://linkedin.com/in/bingorabbit