Messaging Systems - Confoo 2014

Confoo 2014

Transcript

1. MESSAGING SYSTEMS WHY SHOULD I USE THEM? http://slidesha.re/1dwZ1eS
2. ! • @hannelita • Software Developer • Coffee and Pokémon Addicted Hanneli Hi! http://slidesha.re/1dwZ1eS
3. What we will see • How can we integrate 2 or more systems? • A list of alternatives to integrate them • Problems and good points of these strategies • Messaging systems - the good parts • Messaging systems - the bad points • Cool pictures, stupid jokes and funny gifs (or not that funny) http://slidesha.re/1dwZ1eS
4. Software development - very simple http://slidesha.re/1dwZ1eS
5. Simple software development Web!
6. 1. Number of users increases
7. 2. Number of requested functionalities increases
8. How can we expand the system?
9. How can we integrate? Hi! @&ˆ!@! ???????
10. How can we integrate? The systems need to change information.
11. Method 1 Hi!
12. Method 1 - TXT
13. Method 1 - TXT • How should I format the TXT file? • Parse == Hell • Speed (development and execution)
14. Method 1 - TXT
15. Method 1I Hi! ESB Hello!
16. Method 1I - ESB
17. Method 1I - ESB • SOA Expertise • High skill set • $$$$$ in some cases.
18. Method I1 - ESB
19. One example Support Company
20. Example PLZ FIX MY SYSTEM. Sure! I will contact IT department. Sales Guy
21. Example Heeeyy IT guy! Yo! We have work to do!
22. Example Have you seen the hockey game yesterday? YEEESS AWESOME!
23. bla bla bla bla bla bla
24. Example bla bla bla bla bla bla
25. Example Synchronous communication
26. Example Have you seen the hockey game yesterday? YEEESS AWESOME!
27. Example The SHALL NOT directly communicate.
28. Example Client 1 Request 1
29. Example Now they won’t directly communicate!
30. Example Asynchronous Communication They don’t waste time!
31. Example
33. Some problems
35. Some Problems
36. Message Transmission Asynchronous communication No direct communication There’s a ‘keeper' for the message board M essage Oriented M iddleware
37. Message Transmission Destination Message Sender Receiver Broker
38. More Technical Sender Receiver Broker
39. Java World M essage Oriented M iddleware J ava Message S ervice Specification(PDF) ActiveMQ HornetQ Oracle AQ Some implementations
40. Implementations HornetQ ActiveMQ - Work with different languages (interoperability) - Security (Cryptography) - Message delivery guarantee (Reliability) PROTOCOL A vanced M essage Q ueuing P rotocol
41. Implementations HornetQ ActiveMQ - Work with different languages (interoperability) - Similar to HTTP - Text PROTOCOL Streaming Text Oriented M essage P rotocol
42. Implementations ØMQ {- Multiple Languages - Concurrency - Transports messages between protocols - Multicast - Written in C++ - Performance - Hard to configure
43. Implementatiosn Sidekiq {- Ruby - Rails - Redis - Performance
44. Implementations Kafka {- Performance - Scalability - Messages persisted on disk and replicated on cluster - Environment had to configure
45. Implementations ActiveMQ {- Performance - Java - ESBs
46. When I should use messaging systems Asynchronous communication - Email {- Reports - Long running operations in batch
47. When I should NOT use messaging systems Synchronous communication - Requires immediate response {- Cannot provide information about the destination
48. MOAR Examples Imagine a system: Sends Emails CRUD Generates Daily Reports Captures and log events JMS JMS JMS
49. Before Messaging Systems doSomething(); doMOAR(); sadsdsda(); return(); Synchronous communication What happens if it takes too long?
50. Queue Consumer After Messaging Systems return(); Asynchronous communication sendMessageToQueue(); doSomething(); doMOAR(); sadsdsda(); All done for this message!
51. Where to go now Enterprise Integration Patterns Apache Camel JMS
52. Questions? hannelita@gmail.com! Twitter: @hannelita THANK YOU!
53. References • http://academictech.doit.wisc.edu/blend/facilitate/communicate • http://docs.oracle.com/cd/E19340-01/820-6424/aeraq/index.html • http://docs.oracle.com/javaee/1.3/jms/tutorial/1_3_1-fcs/doc/ jms_tutorialTOC.html • http://www.practicingsafetechs.com/TechsV1/MOMs/ • http://www.amqp.org/product/overview • http://stomp.github.io/stomp-specification-1.2.html#Protocol_Overview • http://zguide.zeromq.org/ • https://github.com/mperham/sidekiq/wiki • http://kafka.apache.org/