What Are the Biggest Challenges You've Faced With Your ETL Pipeline? or How Do You Optimize Performan

Honestly? Visualize the dang thing. I use Apache Airflow for orchestration, and seeing the DAG graph helps me spot where things fail.

Plus, adding custom metrics (like latency per step) to something like Prometheus or Datadog gives me a heads-up before stuff blows up.

ETL pipelines are like cars—gotta check the dashboard before the engine light comes on.

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