Managed Airflow: Airflow web server memory requirement increased
Managed Service for Apache Airflow (Gen 3) now requires at least 3 GB of memory for the Airflow web server in Airflow 2.11.1 builds. This change is intended to prevent intermittent out-of-memory errors. Users with existing environments may need to adjust their web server memory configuration, especially those using the default Small preset.
Known issues (1) ›
- Managed Service for Apache Airflow
In Managed Airflow (Gen 3) builds with Airflow 2.11.1 starting from composer-3-airflow-2.11.1-build.7 , the Airflow web server requires at least 3 GB of memory (the default amount of memory for a Small environment preset is 4 GB). If the Airflow web server has less than 3 GB of memory, it might experience intermittent out-of-memory (OOM) issues. To resolve these issues, increase the web server memory to at least 3 GB.
https://docs.cloud.google.com/release-notes#July_13_2026