DAGs, Operators & Dependencies. Defining a DAG. from airflow import DAG from airflow.operators.python import PythonOperator from airflow.operators.bash import BashOperator from datetime import datetime, timedelta with DA…
ReadIdempotency, Scaling & Configuration. Task Idempotency. # BAD — unconditional INSERT duplicates rows if this task retries or re-runs def load_bad(**context): db.execute("INSERT INTO daily_totals (date, total) VALUES (%s,…
ReadSave this stack to your personal DevRecall — add your own notes, track what you're learning, and share what you know with the community.
Get started — free forever