17 lines
711 B
Markdown
Executable File
17 lines
711 B
Markdown
Executable File
---
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note type:
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- note
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- database
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date: 2026-06-03
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done: true
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---
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A task in the context of airflow is the basic unit of execution. They are arranged into [[Airflow Dags]] and then have upstream and downstream dependencies set between them in order to express the order in which they should be run.
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There are three kinds of tasks:
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1. Operators: they are predefined task templates that you can string together quickly.
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2. Sensors: special subclass of operators, which are entirely about waiting for an external event to happen.
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3. A Taskflow-decorated @task, which is a custom python function packaged as a task.
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[See this](https://airflow.apache.org/docs/apache-airflow/stable/core-concepts/tasks.html)
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