1.
RFX - Full-Stack Technology for
Real-time Big Data
Key questions
1. What is RFX ?
2. Why is RFX ?
3. How to use RFX ?
4. The vision ...
by TrieuNT@fpt.com.vn on
27/01/2016
http://engineering.adsplay.net

2.
History
● Applied Lambda Architecture
○ https://en.wikipedia.org/wiki/Lambda_architecture
● In 2012, we used Apache Storm http://storm.apache.org
(version 0.7)
● but we want to improve it and made it as full-stack framework
● In 2013, I started RFX with “Reactive philosophy in Mind” for
common Big Data problems
● Since 2014 to now, RFX as main tool for our daily real-time
big data tasks at FPT
● Core engineers:
○ TrieuNT@fpt.com.vn
○ DuHC@fpt.com.vn

3.
What is RFX ?
● RFX is “Reactive Function X”
● “Function X” is a feature in specific product
● “Reactive” means every function can be “feel” and “react” to
optimize UX for user in specific context.
● The framework, is built from open source projects:
○ Computing Unit with Akka Actor ( http://akka.io )
○ Network Communication with Netty ( http://netty.io )
○ Data Processing with Apache { Kafka, Hadoop , Spark }
○ Redis ( http://redis.io )
○ Front-end with MEAN stack (MongoDB, ExpressJS, AngularJS , NodeJS)

4.
Projects and Products using RFX
1. http://vnexpress.net
a. counting article pageview
b. recommendation engine
2. https://eclick.vn
a. click analytics
b. impression analytics
3. http://itvad.vn
a. Video PlayView Analytics
b. User Behaviour Analytics
c. Heatmap Analytics
d. Device Analytics
e. Revenue Ad Optimization
4. …

5.
Projects and Products using RFX

6.
Projects and Products using RFX

7.
● Divide code into Micro-Services:
○ Analytical layer ( rfx-stream )
○ Business logic layer ( rfx-query )
○ Machine Learning layer (Apache Spark)
○ Database layer (Redis, Mongo, Hadoop)
○ Front-end layer (MEAN stack)
● Focus on best practices and reusability
● Foundation for scalability (system and business)
● Test-driven development for Real-Time Analytics
● Continuous integration & improvement
Why is RFX ?

8.
Why is RFX ?

9.
Why is RFX ?

10.
Reactive Function (X) Philosophy

11.
Core elements of rfx-stream

12.
Why is RFX ?

13.
Core backend modules
rfx-track:
● collecting all events from JavaScript delivery
rfx-stream:
● processing stream data (PipelineProcessing pattern)
● processing real-time analytics
● processing business logic (by reactive function)
rfx-cronjob:
● synchronizing real-time data to report database (copy
data from Redis to MongoDB)

14.
Core frontend modules
rfx-report:
● visualizing data in real-time
● monitoring real-time event
rfx-agent:
● tracking user activity: heatmap data, ...
● logging user activity to rfx-track (via network
protocol: HTTP, TCP or UDP)

15.
What problems could be solved with RFX
1. Processing Logs:
a. Pageview
b. Ad Impression
c. Click analytics
d. Heatmap User Data
2. real-time user segmentation
3. react to user behaviour
4. auto UX optimization

16.
Vision for RFX

17.
Vision for RFX
http://engineering.adsplay.net/2015/10/08/iris-big-data-query-for-human

18.
Vision for RFX
to be Fast Data Intelligence Platform

19.
Quick demo for
playview analytics
deployed at http://itvad.vn

20.
Quick demo for
device analytics

21.
● Ad Click Prediction: http://research.google.com/pubs/pub41159.html
● Software Engineering for Machine Learning https://sites.google.
com/site/software4ml/accepted-papers
● Fault-tolerant and Scalable Joining of Continuous Data Streams http:
//research.google.com/pubs/pub41318.html
● Dynamic Ad Layout Revenue Optimization for Display Advertising http:
//wan.poly.edu/KDD2012/forms/workshop/ADKDD12/doc/a2.pdf
Behavioral analytics http://en.wikipedia.org/wiki/Behavioral_analytics
● Real-time User Segmentation http://www.slideshare.
net/Hadoop_Summit/doctor-nguyen-june27425pmroom230av2
● Implementing a real-time data pipeline https://chimpler.wordpress.
com/2014/07/01/implementing-a-real-time-data-pipeline-with-spark-
streaming/
● Distributed Event Processing Rule Engine http://eugenedvorkin.
com/distributed-event-processing-rule-engine-with-storm-spring-and-
groovy/
Research links

22.
http://www.rfxlab.com
http://engineering.adsplay.net