Which Airflow UI component shows the status of all tasks in a DAG run as a grid with time on one axis and tasks on the other?
Think about a view that looks like a calendar grid showing task success or failure over time.
The Tree View displays tasks in a grid format with time on the horizontal axis and tasks on the vertical axis, showing their status with colors.
What color does the Airflow UI use to indicate a task that has failed in the Tree View?
Think about common color codes for errors or failures.
In Airflow UI, a failed task is shown in red to alert users to the failure.
You want to check the logs of a specific task instance from the Airflow UI. Which sequence of steps correctly describes how to access the logs?
Logs are usually accessed by clicking the task in a view showing task statuses.
In Airflow UI, you open the DAG, click the task in Tree View, and then select 'View Log' from the popup to see logs.
You deployed a new DAG file to your Airflow DAGs folder, but it does not appear in the Airflow UI. What is the most likely cause?
Check if the DAG file can be read and parsed correctly by Airflow.
If the DAG file has syntax errors, Airflow cannot parse it, so it won't show in the UI. The webserver being down would prevent UI access entirely.
You manage an Airflow instance with hundreds of DAGs, and the UI loads very slowly. Which configuration change best improves UI performance?
Consider how Airflow stores DAG definitions internally for faster UI loading.
Enabling DAG serialization stores DAGs in the metadata database, reducing file parsing and improving UI load times.