Apache Spark

Apache Spark is an open-source, distributed computing system designed for large-scale data processing. It provides an interface for programming entire clusters with implicit data parallelism and fault tolerance, supporting batch processing, real-time analytics, machine learning, and graph processing through its unified engine.

Companies need Spark now because it's essential for processing massive datasets generated by AI/ML applications, IoT devices, and real-time analytics. With the explosion of big data and the shift toward real-time decision-making, Spark's ability to handle petabytes of data across distributed clusters makes it critical for modern data pipelines and AI model training at scale.