Apache Spark: DataFrames & Spark SQL. Apache Spark is a unified analytics engine for large-scale data processing. DataFrames are distributed collections of data organized into named columns — like a database table or a p…
ReadApache Spark: RDDs, Transformations & Actions. RDD Basics. RDD (Resilient Distributed Dataset) is the low-level foundation of Spark. Prefer DataFrames for most use cases — they are more optimized. Use RDDs for unstructur…
ReadApache Spark: Streaming, MLlib & Performance Tuning. Structured Streaming. # Structured Streaming: same DataFrame API for real-time data # Read from Kafka stream_df = spark.readStream .format("kafka") .option("kafka.boot…
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