cp-all-in-one VS demo-scene

Hi everyone,i'm using Kafka on Docker (https://github.com/confluentinc/cp-all-in-one/blob/7.3.3-post/cp-all-in-one/docker-compose.yml), when I run producer.py, it runs very smooth and consumer.py as well. however when I check the schema-register at localhost:8081 it is null and so is the Confluent Ui (localhost:9021). Is there anything missing? Thanks for your help!

To make it more fun, I'm using Kafka in KRaft mode (so without Zookeeper) based on this example running in Docker provided by Confluent.

We will use a docker-compose.yml based on the one from confluent/cp-all-in-one both to run it locally and to execute the integration tests. From that configuration we will keep only the containers: zookeeper, broker, schema-registry and control-center.

There are a lot of extraneous services here, and CP version is very old. Current version is 7.1 with 7.2 on the way. Maybe look at using Confluent local services start with the Confluent CLI to run services locally or perhaps use https://github.com/confluentinc/cp-all-in-one as a good reference docker compose

You can even just run the preview without Zookeeper in docker-compose https://github.com/confluentinc/cp-all-in-one/tree/7.0.1-post/cp-all-in-one-kraft

Once you’ve decided on a language to focus on, it’s time to start filling those knowledge gaps. Don’t be discouraged by this step. We all have knowledge gaps, and filling them can be very rewarding. First, you’ll want to make sure you have a good understanding of Kafka basics. Fortunately, there are many resources to help you with this. A web search will turn up many great books and other resources. And, of course, Confluent Developer offers interactive courses ranging from introductory (Apache Kafka 101) to advanced (Kafka Internals), full documentation, and other content to help you get started.

Spend some time on https://developer.confluent.io , especially https://developer.confluent.io/get-started/java/ and look at https://github.com/confluentinc/examples . Those will give really practical examples for how to set up your configs and start consuming

FWIW you'll find a bunch of promo codes over at developer.confluent.io

Kafka streams is a Java library built on the producer/consumer APIs designed to create event-driven microservices on top of Kafka. In general, I recommend exploring https://developer.confluent.io to learn more

For example: https://github.com/confluentinc/demo-scene/tree/master/kafka-connect-zero-to-hero

Are you getting ahead of yourself to use Kafka Connect? No, definitely not! Kafka Connect is part of Apache Kafka so you're just learning more Kafka :) The connector plugins vary in author and licence. There is a mixture of vendor and community-written plugins. The Twitter one you found is great - I've used it in the past several times for projects. If you want another set of code to look at using it there is this repo here and related blog

should I be reading a different material for a first Kafka project and working with a different kind of setup? Now, I can't be unbiased on this one ;) One of the things we're doing with Confluent Developer is to try and create a resource for people to learn Kafka from the ground up, whether they ultimately decide to pursue it on Confluent or not. The fundamentals of Kafka that you'll be learning are going to be as applicable whether you're using Apache Kafka self-managed, or Confluent, or AWS' MSK, or whatever else. Personally I'd this stage I'd use whatever setup you find easiest and least friction to your learning journey. As u/louisvell mentioned, /u/stephanemaarek's courses on Udemy are also very popular, if you wanted a "second opinion" on how to approach learning Kafka.

Also check out developer.confluent.io if you want more Kafka hands-on tutorials and exercises

Check out developer.confluent.io. There's video courses, tutorials and blogs to learn from.