Posts in spark
APR 9, 2026
How Delta Lake Works Under the Hood
Learn how Delta Lake brings ACID transactions and reliability to your object storage data lakes.
MAR 24, 2026
How Apache Spark Works Under the Hood (Explained Simply)
Learn the building blocks of Spark and how it works under the hood.
MAR 15, 2026
Narrow vs. Wide Transformations in PySpark
Learn the difference between narrow and wide transformations in Apache Spark and how they impact performance.