Error 413 (Request Entity Too Large) When Using "Select Recent Configurations" in Airflow UI

[Glitch33r]

Description:

I am encountering an issue in the Airflow UI when attempting to run a DAG using the "Select Recent Configurations" option. Instead of running successfully, I receive a 413 Request Entity Too Large error.

JSON Size in Issue: 10,000+ lines

Steps to Reproduce:

• Open the form to manually provide JSON data for the DAG run (our JSON can be quite large, up to 10,000 lines).
• Submit the JSON configuration. This step works perfectly, and the DAG runs without issues.
• Attempt to use "Select Recent Configurations" to reuse a previously submitted JSON configuration.
• Encounter the 413 Request Entity Too Large error.

Environment:

Airflow Version: 2.10.3

Additional Information:

The error suggests that the payload is too large for the server to handle. However, submitting the same data via the form works perfectly.

Questions:

• Is this a known limitation or bug in the Airflow UI?
• Are there any configuration options (e.g., for the web server) that can address this issue?
• Could this be resolved by modifying request limits in the server configuration?

Any help or insights would be greatly appreciated!

[potiuk]

https://airflow.apache.org/docs/apache-airflow/stable/configurations-ref.html#allowed-payload-size

[Glitch33r]

Thank you! I missed this conf variable