Is Apache Kafka free?
Yes, Kafka is open source under Apache 2.0 license. Self-hosting is free. Confluent Cloud and AWS MSK provide managed services at a cost.
What is Apache Kafka?
Kafka is a distributed event streaming platform. Handle real-time data feeds at scale. Used for messaging, event sourcing, log aggregation, and stream processing.
What is Kafka used for?
Real-time data pipelines, event-driven architectures, log aggregation, and stream processing. LinkedIn (creator), Uber, and Netflix use it for massive event streams.
Kafka vs RabbitMQ?
Kafka is better for high-throughput event streaming. RabbitMQ is better for traditional message queuing with complex routing. Kafka for big data; RabbitMQ for application messaging.
What is Confluent?
Confluent is the company founded by Kafka creators. Offers Confluent Cloud (managed Kafka) and enterprise features. Commercial option for teams that don't want to manage Kafka themselves.