wyfok opened a new issue, #53605: URL: https://github.com/apache/airflow/issues/53605
### Apache Airflow version 3.0.3 ### If "Other Airflow 2 version" selected, which one? _No response_ ### What happened? During following the [quick start page](https://airflow.apache.org/docs/apache-airflow/stable/start.html) , the api-server keeps waiting for child process but child process keeps dying. [2025-07-21T20:16:41.702+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work [2025-07-21T20:16:41.707+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work standalone | Starting Airflow Standalone standalone | Checking database is initialized standalone | Database ready api-server | [2025-07-21T20:16:54.156+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work api-server | [2025-07-21T20:16:54.160+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work triggerer | [2025-07-21T20:16:54.217+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work triggerer | [2025-07-21T20:16:54.220+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work api-server | ____________ _____________ api-server | ____ |__( )_________ __/__ /________ __ api-server | ____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / / api-server | ___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ / api-server | _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/ api-server | [2025-07-21T20:16:54.309+0200] {api_server_command.py:92} INFO - Running the uvicorn with: api-server | Apps: all api-server | Workers: 4 api-server | Host: 0.0.0.0:8080 api-server | Timeout: 120 api-server | Logfiles: - api-server | ================================================================= api-server | INFO: Uvicorn running on http://0.0.0.0:8080 (Press CTRL+C to quit) api-server | INFO: Started parent process [48987] dag-processor | [2025-07-21T20:16:54.326+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work dag-processor | [2025-07-21T20:16:54.335+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work scheduler | [2025-07-21T20:16:54.578+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work scheduler | [2025-07-21T20:16:54.594+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work triggerer | ____________ _____________ triggerer | ____ |__( )_________ __/__ /________ __ triggerer | ____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / / triggerer | ___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ / triggerer | _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/ triggerer | [2025-07-21 20:16:54 +0200] [49260] [INFO] Starting gunicorn 23.0.0 triggerer | [2025-07-21 20:16:54 +0200] [49260] [INFO] Listening at: http://[::]:8794 (49260) triggerer | [2025-07-21 20:16:54 +0200] [49260] [INFO] Using worker: sync triggerer | [2025-07-21 20:16:54 +0200] [49265] [INFO] Booting worker with pid: 49265 triggerer | [2025-07-21 20:16:54 +0200] [49268] [INFO] Booting worker with pid: 49268 dag-processor | [2025-07-21T20:16:56.856+0200] {settings.py:60} INFO - Configured default timezone UTC dag-processor | [2025-07-21T20:16:56.965+0200] {dag_processor_job_runner.py:59} INFO - Starting the Dag Processor Job dag-processor | [2025-07-21T20:16:56.969+0200] {manager.py:252} INFO - Processing files using up to 2 processes at a time dag-processor | [2025-07-21T20:16:56.972+0200] {manager.py:253} INFO - Process each file at most once every 30 seconds dag-processor | [2025-07-21T20:16:57.012+0200] {manager.py:122} INFO - DAG bundles loaded: dags-folder dag-processor | [2025-07-21T20:16:57.072+0200] {manager.py:122} INFO - DAG bundles loaded: dags-folder dag-processor | [2025-07-21T20:16:57.074+0200] {manager.py:263} INFO - Checking for new files in bundle dags-folder every 300 seconds dag-processor | [2025-07-21T20:16:57.163+0200] {manager.py:534} INFO - Refreshing bundle dags-folder dag-processor | [2025-07-21T20:16:57.211+0200] {manager.py:585} INFO - Searching for files in dags-folder at /home/yuasto/Desktop/Python_Project/Airflow/airflow_learning_20240715/dags dag-processor | [2025-07-21T20:16:57.212+0200] {manager.py:587} INFO - Found 0 files for bundle dags-folder dag-processor | [2025-07-21T20:16:57.546+0200] {manager.py:756} INFO - dag-processor | ================================================================================ dag-processor | DAG File Processing Stats dag-processor | Bundle File Path PID Current Duration # DAGs # Errors Last Duration Last Run At dag-processor | -------- ----------- ----- ------------------ -------- ---------- --------------- ------------- dag-processor | ================================================================================ triggerer | [2025-07-21T20:16:57.619+0200] {triggerer_job_runner.py:154} INFO - Starting the triggerer scheduler | ____________ _____________ scheduler | ____ |__( )_________ __/__ /________ __ scheduler | ____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / / scheduler | ___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ / scheduler | _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/ scheduler | [2025-07-21T20:16:58.338+0200] {scheduler_job_runner.py:989} INFO - Starting the scheduler scheduler | [2025-07-21 20:16:58 +0200] [49381] [INFO] Starting gunicorn 23.0.0 scheduler | [2025-07-21T20:16:58.369+0200] {executor_loader.py:269} INFO - Loaded executor: :LocalExecutor: scheduler | [2025-07-21 20:16:58 +0200] [49381] [INFO] Listening at: http://[::]:8793 (49381) scheduler | [2025-07-21 20:16:58 +0200] [49381] [INFO] Using worker: sync scheduler | [2025-07-21T20:16:58.424+0200] {scheduler_job_runner.py:2143} INFO - Adopting or resetting orphaned tasks for active dag runs scheduler | [2025-07-21 20:16:58 +0200] [49386] [INFO] Booting worker with pid: 49386 scheduler | [2025-07-21 20:16:58 +0200] [49387] [INFO] Booting worker with pid: 49387 api-server | INFO: Waiting for child process [49250] api-server | INFO: Child process [49250] died standalone | Airflow is ready standalone | Airflow Standalone is for development purposes only. Do not use this in production! dag-processor | [2025-07-21T20:17:02.511+0200] {manager.py:531} INFO - Not time to refresh bundle dags-folder api-server | INFO: Waiting for child process [49251] api-server | INFO: Child process [49251] died api-server | [2025-07-21T20:17:05.987+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work api-server | [2025-07-21T20:17:05.991+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work dag-processor | [2025-07-21T20:17:07.813+0200] {manager.py:531} INFO - Not time to refresh bundle dags-folder api-server | [2025-07-21T20:17:08.502+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work api-server | [2025-07-21T20:17:08.505+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work api-server | [2025-07-21T20:17:09.820+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.filesystem.FSHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work api-server | [2025-07-21T20:17:09.824+0200] {providers_manager.py:953} INFO - The hook_class 'airflow.providers.standard.hooks.package_index.PackageIndexHook' is not fully initialized (UI widgets will be missing), because the 'flask_appbuilder' package is not installed, however it is not required for Airflow components to work dag-processor | [2025-07-21T20:17:13.140+0200] {manager.py:531} INFO - Not time to refresh bundle dags-folder api-server | INFO: Waiting for child process [49582] api-server | INFO: Child process [49582] died dag-processor | [2025-07-21T20:17:18.209+0200] {manager.py:531} INFO - Not time to refresh bundle dags-folder api-server | INFO: Waiting for child process [49902] api-server | INFO: Child process [49902] died api-server | INFO: Started server process [49252] api-server | INFO: Waiting for application startup. api-server | INFO: Application startup complete. dag-processor | [2025-07-21T20:17:23.504+0200] {manager.py:531} INFO - Not time to refresh bundle dags-folder api-server | INFO: Started server process [49253] api-server | INFO: Waiting for application startup. api-server | INFO: Application startup complete. api-server | INFO: Started server process [49416] api-server | INFO: Waiting for application startup. api-server | INFO: Application startup complete. api-server | INFO: Waiting for child process [50072] api-server | INFO: Child process [50072] died dag-processor | [2025-07-21T20:17:27.917+0200] {manager.py:756} INFO - dag-processor | ================================================================================ ### What you think should happen instead? There should be no issue for running api-server ### How to reproduce 1. Create a venv 2. pip install apache-airflow 3. airflow standalone ### Operating System Linux raspberrypi 6.12.25+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.25-1+rpt1 (2025-04-30) aarch64 GNU/Linux ### Versions of Apache Airflow Providers _No response_ ### Deployment Official Apache Airflow Helm Chart ### Deployment details _No response_ ### Anything else? _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
