Kafka Streams

Kafka Streams 129 is a Java library, not a cluster: applications embed it, keep state in local RocksDB stores backed by Kafka 129 topics, and scale by starting more copies. The examples use Kafka Streams 4.3.1 on Java 17, built against the apache/kafka:4.3.1 image's jars (streams/build.sh).

Subsections

• The Streams DSL
• Stateless Transformations
• Windows and Joins
• State Stores
• Interactive Queries
• The Processor API
• A BookNest Streams Application
• Testing Topologies