Spark Streaming, Spark SQL and MLib in that order.
Apache Spark offers remarkable speed and efficiency in data processing by managing parallel operations and large datasets using an in-memory engine for rapid execution. It efficiently handles extensive datasets with impressive scalability but requires significant technical expertise for setup and lacks support for some machine learning libraries. Complexity in optimization and integration with databases affects its performance. Its user-friendly nature, flexibility, and documentation enhance deployment and adoption across industries.
