Kafka

gistfile1.txt

Serialization 
The process of translating data structures or object states into a format that can be stored or transmitted and reconstructed later, possibly in a different computer enviroment.
Serializer vs Deserializer
Serialization formats:
Binary? Data is transmitted/stored as bytes or plaintext
Binary serialization format use less band width 

Confluent Community License
You can acess the source code and modify or redistribute it; there is no only one thing you can not do, and that is use it to make a competing SaaS offering.
KSQL
Why 
create stream pineapple_pizza as 
select crust, size, toppings from pizza where type = 'pineapple';

Developer API's Pyramid
Producer API,  
Kafka cluster is core of streaming platform
Streaming application will be build inside the KSQL Server.
This server connect to kafka cluster and consume and produce
 
 Use case:
 Streaming Oper
 View data : show content of topic
 Manipulationg data: Enhaft