Avro
Avro is a data serialization system and remote procedure call (RPC) framework developed within Apache's Hadoop project. It uses JSON-based schemas to define data structures and binary encoding for efficient serialization, supporting rich data types and schema evolution. It is commonly used in big data ecosystems for data storage and exchange, particularly with Apache Kafka and Hadoop.
Developers should learn Avro when working in data-intensive applications, especially in big data pipelines, streaming platforms like Apache Kafka, or distributed systems requiring efficient data serialization. It is ideal for scenarios needing schema evolution (backward and forward compatibility), compact binary formats for network transmission, and integration with Hadoop-based tools, as it reduces data size and improves performance compared to text-based formats like JSON or XML.