Why production Airflow needs careful setup - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the Airflow webserver.

Apache Airflow

airflow [1]

Drag options to blanks, or click blank then click option'

Ainit

Bstandalone

Cstart

Drun

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' instead of 'standalone' causes command not found error.

The airflow standalone command starts Airflow with all components for quick testing.

2fill in blank

medium

Complete the code to initialize the Airflow database.

Apache Airflow

airflow db [1]

Drag options to blanks, or click blank then click option'

Aupgrade

Breset

Cmigrate

Dinit

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'upgrade' or 'reset' can cause errors if database is not ready.

The airflow db init command sets up the Airflow metadata database.

3fill in blank

hard

Fix the error in the command to start the Airflow scheduler.

Apache Airflow

airflow [1]

Drag options to blanks, or click blank then click option'

Alaunch

Bstart

Cscheduler

Dbegin

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' or 'launch' causes command not found errors.

The correct command is airflow scheduler to start the scheduler process.

4fill in blank

hard

Fill both blanks to configure Airflow to use a PostgreSQL database and enable the scheduler.

Apache Airflow

[core]
executor = [1]
sql_alchemy_conn = [2]

Drag options to blanks, or click blank then click option'

ALocalExecutor

Bsqlite:///airflow.db

Cpostgresql+psycopg2://user:pass@localhost/airflow

DSequentialExecutor

Attempts:

3 left

💡 Hint

Common Mistakes

Using SQLite connection string in production causes performance issues.

Using LocalExecutor allows parallel task execution, and the PostgreSQL connection string configures the database.

5fill in blank

hard

Fill all three blanks to set up Airflow's webserver port, enable logging, and set the DAGs folder.

Apache Airflow

[webserver]
web_server_port = [1]

[logging]
logging_level = [2]

[core]
dags_folder = [3]

Drag options to blanks, or click blank then click option'

A8080

BINFO

C/usr/local/airflow/dags

D9090

Attempts:

3 left

💡 Hint

Common Mistakes

Using port 9090 without configuration causes connection errors.

Port 8080 is default for Airflow webserver, INFO is a common logging level, and the DAGs folder path points to where DAG files are stored.