Spark creator Josh Rosen: AI systems should steal far more from data engineering

colinmcnamara · x · 2026-10-06

Apache Spark co-creator Josh Rosen argues AI systems should borrow more from decades of data engineering practice: use DAGs instead of one giant agent loop; track lineage of sources, artifacts, prompts, and model versions; do change detection to know which generated artifacts are stale; apply incremental processing instead of rerunning whole agents; and treat context handling as classic ETL. These problems have long been solved — AI engineering should reuse the solutions.

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