HazelcastMQ provides a simple messaging layer on top of the basic Queue and Topic data structures provided by Hazelcast. HazelcastMQ emphasizes simple configuration and reliable clustering while providing an understandable and flexible messaging API. Building on the core features of Hazelcast such as scalability and resilience, HazelcastMQ maintains a small footprint and few dependencies.

1. HAZELCASTMQ
Simple, Clustered Messaging
https://github.com/mpilone/hazelcastmq

2. agenda
HazelcastMQ overview!
Why Hazelcast!
Architecture and components!
Benefits and limitations!
Use cases!
Future work!
Wrap up and questions

3. about me
Mike Pilone!
Software Architect!
National Public Radio!
@mikepilone

4. about hazelcastmq
Messaging framework!
Clustered!
Lightweight!
Simple!
Scalable!
Small footprint

5. another mq
ActiveMQ!
RabbitMQ!
HornetQ!
ZeroMQ!
Redis!
Qpid!
Apollo!
Amazon SQS!
…

6. why hazelcast
Easy to configure!
In-process or standalone!
Great clustering!
Small footprint!
Multiple roles!
Queue and topic support!
Free community edition!
Paid support if needed

7. architecture
Core!
STOMP!
JMS!
Camel
Hazelcast
HazelcastMQ Core
HazelcastMQSTOMP
HazelcastMQJMS
HazelcastMQCamel
Hazelcast

8. architecture: core
JMS 2-ish API!
Producers and consumers!
Polling or event driven!
Pub/sub and point-to-point!
Messaging paradigms
Hazelcast
HazelcastMQSTOMP
HazelcastMQJMS
HazelcastMQCamel
Hazelcast
HazelcastMQ Core

9. architecture: stomp
Built withYeti on Netty!
STOMP 1.1 and 1.2!
Flexible network config!
Integrate polygot components
http://stomp.github.io/
http://netty.io/
Yeti
Hazelcast
HazelcastMQ Core
HazelcastMQJMS
HazelcastMQCamel
Hazelcast
HazelcastMQSTOMP

10. architecture: jms
JMS 1.1 provider!
Layers on core!
Drop in replacement
Hazelcast
HazelcastMQ Core
HazelcastMQSTOMP
HazelcastMQCamel
Hazelcast
HazelcastMQJMS

11. architecture: camel
Apache Camel component!
In/out pattern (request/reply)!
EIP via routes
http://camel.apache.org/
Apache Camel
Hazelcast
HazelcastMQ Core
HazelcastMQSTOMP
HazelcastMQJMS
Hazelcast
HazelcastMQCamel

12. benefits
All the power of Hazelcast!
Lightweight messaging!
Messaging paradigms!
Multiple integration methods!
Messaging vs web services

13. limitations
Not reliable messaging!
No ack/nack support!
No transactional reception!
Limited in-flight message
management!
Web services vs messaging

14. try it with
Microservices!
STOMP over WebSockets!
Soft real-time messaging!
Event broadcasting!
Batch processing

15. avoid it with
Financial processing!
WAN clustering!
Irregular message production/
consumption!
Require retries, acks, no dupes

16. future work
Spring integration!
Ack/nack, consumer
transactions!
JMS 2.0 provider!
Custom Hazelcast data
structures and selectors!
Improved/simplified internal
thread model

17. give it a try
Thanks for attending!!
More examples in GitHub!
Questions
https://github.com/mpilone/hazelcastmq