Apache Kafka vs Elasticsearch

Apache Kafka is an open-source distributed event streaming platform used for building real-time data pipelines and streaming applications. Originally developed at LinkedIn, it provides high-throughput, fault-tolerant publish-subscribe messaging with persistent storage. Kafka supports stream processing through Kafka Streams and ksqlDB.

Elasticsearch Distributed search and analytics engine commonly used for full-text search, log analysis, and real-time indexing.