09 Confluent ksqlDB server installation

ksqlDB is a database purpose-built for stream processing applications. What exactly does this mean? It incorporates many components found in almost every stream processing architecture.

This is important because almost all streaming architectures today are piecemeal solutions cobbled together from different projects. At a minimum, you need one subsystem to get events from existing data sources, another to store them, another to process them, and another to query against aggregation. Integrating each subsystem can be difficult. Everyone has their own mental models. Given all these complexities, it's easy to wonder: is it all worth it?

ksqlDB aims to provide a mental model to do everything you need. You can build a complete streaming application against ksqlDB, which has only one dependency: Apache Kafka®.

This course will comprehensively and meticulously introduce all the knowledge points of ksql and ksqlDB, allowing you to master the use of ksqlDB from beginner to proficient, from shallow to deep. Using ksqlDB, you can easily use a few lines of SQL statements to complete the development of streaming computing applications for real-time data.

[DeepakMishra-wj]

hello i am stuck in ksql installation. I was followed all the steps but after that it show connection refused. Can you pls suggest me what should i do

[mounikamanchala]

I'm facing issue while running in local
Error: Could not find or load main class
Caused by:

Can you help here