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Blocked Airflow configurations

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This page lists Airflow configuration options that are blocked in Cloud Composer.

If a configuration option is blocked, you cannot override its value.

Blocked configurations in Airflow 2.4.3

Airflow version Section Configuration option
2.4.3 cli All configuration options
2.4.3 kubernetes pod_template_file
2.4.3 kubernetes namespace
2.4.3 celery celery_app_name
2.4.3 celery worker_log_server_port
2.4.3 celery broker_url
2.4.3 celery result_backend
2.4.3 celery pool
2.4.3 celery default_queue
2.4.3 operators default_queue
2.4.3 core dags_folder
2.4.3 core fernet_key
2.4.3 core plugins_folder
2.4.3 core security
2.4.3 core sql_alchemy_conn
2.4.3 core sql_alchemy_pool_recycle
2.4.3 core sql_alchemy_pool_size
2.4.3 core load_examples
2.4.3 core store_serialized_dags
2.4.3 core store_dag_code
2.4.3 core wait_dag_not_found_timeout
2.4.3 core base_log_folder
2.4.3 core encrypt_s3_logs
2.4.3 core logging_config_class
2.4.3 core remote_base_log_folder
2.4.3 core remote_log_conn_id
2.4.3 core remote_logging
2.4.3 core task_log_reader
2.4.3 database sql_alchemy_conn
2.4.3 database sql_alchemy_pool_recycle
2.4.3 database sql_alchemy_pool_size
2.4.3 smtp smtp_password
2.4.3 scheduler child_process_log_directory
2.4.3 scheduler print_stats_interval
2.4.3 scheduler enable_health_check
2.4.3 scheduler scheduler_health_check_server_port
2.4.3 webserver access_logfile
2.4.3 webserver base_url
2.4.3 webserver error_logfile
2.4.3 webserver log_fetch_timeout_sec
2.4.3 webserver secret_key
2.4.3 webserver web_server_host
2.4.3 webserver web_server_port
2.4.3 webserver web_server_ssl_cert
2.4.3 webserver web_server_ssl_key
2.4.3 webserver web_server_worker_timeout
2.4.3 webserver worker_refresh_batch_size
2.4.3 logging base_log_folder
2.4.3 logging encrypt_s3_logs
2.4.3 logging logging_config_class
2.4.3 logging remote_base_log_folder
2.4.3 logging remote_log_conn_id
2.4.3 logging remote_logging
2.4.3 logging task_log_reader
2.4.3 api google_oauth2_audience

Blocked configurations in Airflow 2.3.4

Airflow version Section Configuration option
2.3.4 cli All configuration options
2.3.4 kubernetes pod_template_file
2.3.4 kubernetes namespace
2.3.4 celery celery_app_name
2.3.4 celery worker_log_server_port
2.3.4 celery broker_url
2.3.4 celery result_backend
2.3.4 celery pool
2.3.4 celery default_queue
2.3.4 operators default_queue
2.3.4 core dags_folder
2.3.4 core fernet_key
2.3.4 core plugins_folder
2.3.4 core security
2.3.4 core sql_alchemy_conn
2.3.4 core sql_alchemy_pool_recycle
2.3.4 core sql_alchemy_pool_size
2.3.4 core load_examples
2.3.4 core store_serialized_dags
2.3.4 core store_dag_code
2.3.4 core wait_dag_not_found_timeout
2.3.4 core base_log_folder
2.3.4 core encrypt_s3_logs
2.3.4 core logging_config_class
2.3.4 core remote_base_log_folder
2.3.4 core remote_log_conn_id
2.3.4 core remote_logging
2.3.4 core task_log_reader
2.3.4 database sql_alchemy_conn
2.3.4 database sql_alchemy_pool_recycle
2.3.4 database sql_alchemy_pool_size
2.3.4 smtp smtp_password
2.3.4 scheduler child_process_log_directory
2.3.4 scheduler print_stats_interval
2.3.4 webserver access_logfile
2.3.4 webserver base_url
2.3.4 webserver error_logfile
2.3.4 webserver log_fetch_timeout_sec
2.3.4 webserver secret_key
2.3.4 webserver web_server_host
2.3.4 webserver web_server_port
2.3.4 webserver web_server_ssl_cert
2.3.4 webserver web_server_ssl_key
2.3.4 webserver web_server_worker_timeout
2.3.4 webserver worker_refresh_batch_size
2.3.4 logging base_log_folder
2.3.4 logging encrypt_s3_logs
2.3.4 logging logging_config_class
2.3.4 logging remote_base_log_folder
2.3.4 logging remote_log_conn_id
2.3.4 logging remote_logging
2.3.4 logging task_log_reader
2.3.4 api google_oauth2_audience

Blocked configurations in Airflow 2.3.3

Airflow version Section Configuration option
2.3.3 cli All configuration options
2.3.3 kubernetes pod_template_file
2.3.3 kubernetes namespace
2.3.3 celery celery_app_name
2.3.3 celery worker_log_server_port
2.3.3 celery broker_url
2.3.3 celery result_backend
2.3.3 celery pool
2.3.3 celery default_queue
2.3.3 operators default_queue
2.3.3 core dags_folder
2.3.3 core fernet_key
2.3.3 core plugins_folder
2.3.3 core security
2.3.3 core sql_alchemy_conn
2.3.3 core sql_alchemy_pool_recycle
2.3.3 core sql_alchemy_pool_size
2.3.3 core load_examples
2.3.3 core store_serialized_dags
2.3.3 core store_dag_code
2.3.3 core wait_dag_not_found_timeout
2.3.3 core base_log_folder
2.3.3 core encrypt_s3_logs
2.3.3 core logging_config_class
2.3.3 core remote_base_log_folder
2.3.3 core remote_log_conn_id
2.3.3 core remote_logging
2.3.3 core task_log_reader
2.3.3 database sql_alchemy_conn
2.3.3 database sql_alchemy_pool_recycle
2.3.3 database sql_alchemy_pool_size
2.3.3 smtp smtp_password
2.3.3 scheduler child_process_log_directory
2.3.3 scheduler print_stats_interval
2.3.3 webserver access_logfile
2.3.3 webserver base_url
2.3.3 webserver error_logfile
2.3.3 webserver log_fetch_timeout_sec
2.3.3 webserver secret_key
2.3.3 webserver web_server_host
2.3.3 webserver web_server_port
2.3.3 webserver web_server_ssl_cert
2.3.3 webserver web_server_ssl_key
2.3.3 webserver web_server_worker_timeout
2.3.3 webserver worker_refresh_batch_size
2.3.3 logging base_log_folder
2.3.3 logging encrypt_s3_logs
2.3.3 logging logging_config_class
2.3.3 logging remote_base_log_folder
2.3.3 logging remote_log_conn_id
2.3.3 logging remote_logging
2.3.3 logging task_log_reader
2.3.3 api google_oauth2_audience

Blocked configurations in Airflow 2.2.5

Airflow version Section Configuration option
2.2.5 cli All configuration options
2.2.5 kubernetes pod_template_file
2.2.5 kubernetes namespace
2.2.5 celery celery_app_name
2.2.5 celery worker_log_server_port
2.2.5 celery broker_url
2.2.5 celery result_backend
2.2.5 celery pool
2.2.5 celery default_queue
2.2.5 operators default_queue
2.2.5 core dags_folder
2.2.5 core fernet_key
2.2.5 core plugins_folder
2.2.5 core security
2.2.5 core sql_alchemy_conn
2.2.5 core sql_alchemy_pool_recycle
2.2.5 core sql_alchemy_pool_size
2.2.5 core load_examples
2.2.5 core store_serialized_dags
2.2.5 core store_dag_code
2.2.5 core wait_dag_not_found_timeout
2.2.5 core base_log_folder
2.2.5 core encrypt_s3_logs
2.2.5 core logging_config_class
2.2.5 core remote_base_log_folder
2.2.5 core remote_log_conn_id
2.2.5 core remote_logging
2.2.5 core task_log_reader
2.2.5 smtp smtp_password
2.2.5 scheduler child_process_log_directory
2.2.5 scheduler print_stats_interval
2.2.5 webserver access_logfile
2.2.5 webserver base_url
2.2.5 webserver error_logfile
2.2.5 webserver log_fetch_timeout_sec
2.2.5 webserver secret_key
2.2.5 webserver web_server_host
2.2.5 webserver web_server_port
2.2.5 webserver web_server_ssl_cert
2.2.5 webserver web_server_ssl_key
2.2.5 webserver web_server_worker_timeout
2.2.5 webserver worker_refresh_batch_size
2.2.5 logging base_log_folder
2.2.5 logging encrypt_s3_logs
2.2.5 logging logging_config_class
2.2.5 logging remote_base_log_folder
2.2.5 logging remote_log_conn_id
2.2.5 logging remote_logging
2.2.5 logging task_log_reader
2.2.5 api google_oauth2_audience

Blocked configurations in Airflow 2.2.3

Airflow version Section Configuration option
2.2.3 cli All configuration options
2.2.3 kubernetes pod_template_file
2.2.3 kubernetes namespace
2.2.3 celery celery_app_name
2.2.3 celery worker_log_server_port
2.2.3 celery broker_url
2.2.3 celery result_backend
2.2.3 celery pool
2.2.3 celery default_queue
2.2.3 operators default_queue
2.2.3 core dags_folder
2.2.3 core fernet_key
2.2.3 core plugins_folder
2.2.3 core security
2.2.3 core sql_alchemy_conn
2.2.3 core sql_alchemy_pool_recycle
2.2.3 core sql_alchemy_pool_size
2.2.3 core load_examples
2.2.3 core store_serialized_dags
2.2.3 core store_dag_code
2.2.3 core wait_dag_not_found_timeout
2.2.3 core base_log_folder
2.2.3 core encrypt_s3_logs
2.2.3 core logging_config_class
2.2.3 core remote_base_log_folder
2.2.3 core remote_log_conn_id
2.2.3 core remote_logging
2.2.3 core task_log_reader
2.2.3 smtp smtp_password
2.2.3 scheduler child_process_log_directory
2.2.3 scheduler print_stats_interval
2.2.3 webserver access_logfile
2.2.3 webserver base_url
2.2.3 webserver error_logfile
2.2.3 webserver log_fetch_timeout_sec
2.2.3 webserver secret_key
2.2.3 webserver web_server_host
2.2.3 webserver web_server_port
2.2.3 webserver web_server_ssl_cert
2.2.3 webserver web_server_ssl_key
2.2.3 webserver web_server_worker_timeout
2.2.3 webserver worker_refresh_batch_size
2.2.3 logging base_log_folder
2.2.3 logging encrypt_s3_logs
2.2.3 logging logging_config_class
2.2.3 logging remote_base_log_folder
2.2.3 logging remote_log_conn_id
2.2.3 logging remote_logging
2.2.3 logging task_log_reader
2.2.3 api google_oauth2_audience

Blocked configurations in Airflow 2.1.4

Airflow version Section Configuration option
2.1.4 cli All configuration options
2.1.4 celery celery_app_name
2.1.4 celery worker_log_server_port
2.1.4 celery broker_url
2.1.4 celery result_backend
2.1.4 celery pool
2.1.4 celery default_queue
2.1.4 operators default_queue
2.1.4 core dags_folder
2.1.4 core fernet_key
2.1.4 core plugins_folder
2.1.4 core security
2.1.4 core sql_alchemy_conn
2.1.4 core sql_alchemy_pool_recycle
2.1.4 core sql_alchemy_pool_size
2.1.4 core load_examples
2.1.4 core store_serialized_dags
2.1.4 core store_dag_code
2.1.4 core wait_dag_not_found_timeout
2.1.4 core base_log_folder
2.1.4 core encrypt_s3_logs
2.1.4 core logging_config_class
2.1.4 core remote_base_log_folder
2.1.4 core remote_log_conn_id
2.1.4 core remote_logging
2.1.4 core task_log_reader
2.1.4 smtp smtp_password
2.1.4 scheduler child_process_log_directory
2.1.4 scheduler print_stats_interval
2.1.4 webserver access_logfile
2.1.4 webserver base_url
2.1.4 webserver error_logfile
2.1.4 webserver log_fetch_timeout_sec
2.1.4 webserver secret_key
2.1.4 webserver web_server_host
2.1.4 webserver web_server_port
2.1.4 webserver web_server_ssl_cert
2.1.4 webserver web_server_ssl_key
2.1.4 webserver web_server_worker_timeout
2.1.4 webserver worker_refresh_batch_size
2.1.4 logging base_log_folder
2.1.4 logging encrypt_s3_logs
2.1.4 logging logging_config_class
2.1.4 logging remote_base_log_folder
2.1.4 logging remote_log_conn_id
2.1.4 logging remote_logging
2.1.4 logging task_log_reader
2.1.4 api google_oauth2_audience

Blocked configurations in Airflow 2.1.2

Airflow version Section Configuration option
2.1.2 cli All configuration options
2.1.2 celery celery_app_name
2.1.2 celery worker_log_server_port
2.1.2 celery broker_url
2.1.2 celery result_backend
2.1.2 celery pool
2.1.2 celery default_queue
2.1.2 operators default_queue
2.1.2 core dags_folder
2.1.2 core executor
2.1.2 core fernet_key
2.1.2 core plugins_folder
2.1.2 core security
2.1.2 core sql_alchemy_conn
2.1.2 core sql_alchemy_pool_recycle
2.1.2 core sql_alchemy_pool_size
2.1.2 core load_examples
2.1.2 core store_serialized_dags
2.1.2 core store_dag_code
2.1.2 core base_log_folder
2.1.2 core encrypt_s3_logs
2.1.2 core logging_config_class
2.1.2 core remote_base_log_folder
2.1.2 core remote_log_conn_id
2.1.2 core remote_logging
2.1.2 core task_log_reader
2.1.2 smtp smtp_password
2.1.2 scheduler child_process_log_directory
2.1.2 scheduler print_stats_interval
2.1.2 webserver access_logfile
2.1.2 webserver base_url
2.1.2 webserver error_logfile
2.1.2 webserver log_fetch_timeout_sec
2.1.2 webserver secret_key
2.1.2 webserver web_server_host
2.1.2 webserver web_server_port
2.1.2 webserver web_server_ssl_cert
2.1.2 webserver web_server_ssl_key
2.1.2 webserver web_server_worker_timeout
2.1.2 webserver worker_refresh_batch_size
2.1.2 webserver rbac_autoregister_per_folder_roles
2.1.2 logging base_log_folder
2.1.2 logging encrypt_s3_logs
2.1.2 logging logging_config_class
2.1.2 logging remote_base_log_folder
2.1.2 logging remote_log_conn_id
2.1.2 logging remote_logging
2.1.2 logging task_log_reader
2.1.2 api google_oauth2_audience

Blocked configurations in Airflow 2.1.1

Airflow version Section Configuration option
2.1.1 cli All configuration options
2.1.1 celery celery_app_name
2.1.1 celery worker_log_server_port
2.1.1 celery broker_url
2.1.1 celery result_backend
2.1.1 celery pool
2.1.1 celery default_queue
2.1.1 operators default_queue
2.1.1 core dags_folder
2.1.1 core executor
2.1.1 core fernet_key
2.1.1 core plugins_folder
2.1.1 core security
2.1.1 core sql_alchemy_conn
2.1.1 core sql_alchemy_pool_recycle
2.1.1 core sql_alchemy_pool_size
2.1.1 core load_examples
2.1.1 core store_serialized_dags
2.1.1 core store_dag_code
2.1.1 core base_log_folder
2.1.1 core encrypt_s3_logs
2.1.1 core logging_config_class
2.1.1 core remote_base_log_folder
2.1.1 core remote_log_conn_id
2.1.1 core remote_logging
2.1.1 core task_log_reader
2.1.1 smtp smtp_password
2.1.1 scheduler child_process_log_directory
2.1.1 scheduler print_stats_interval
2.1.1 webserver access_logfile
2.1.1 webserver base_url
2.1.1 webserver error_logfile
2.1.1 webserver log_fetch_timeout_sec
2.1.1 webserver secret_key
2.1.1 webserver web_server_host
2.1.1 webserver web_server_port
2.1.1 webserver web_server_ssl_cert
2.1.1 webserver web_server_ssl_key
2.1.1 webserver web_server_worker_timeout
2.1.1 webserver worker_refresh_batch_size
2.1.1 webserver rbac_autoregister_per_folder_roles
2.1.1 logging base_log_folder
2.1.1 logging encrypt_s3_logs
2.1.1 logging logging_config_class
2.1.1 logging remote_base_log_folder
2.1.1 logging remote_log_conn_id
2.1.1 logging remote_logging
2.1.1 logging task_log_reader
2.1.1 api google_oauth2_audience

Blocked configurations in Airflow 2.0.2, 2.0.1, 2.0.0

Airflow version Section Configuration option
2.0.2, 2.0.1, 2.0.0 cli All configuration options
2.0.2, 2.0.1, 2.0.0 celery celery_app_name
2.0.2, 2.0.1, 2.0.0 celery worker_log_server_port
2.0.2, 2.0.1, 2.0.0 celery broker_url
2.0.2, 2.0.1, 2.0.0 celery result_backend
2.0.2, 2.0.1, 2.0.0 celery default_queue
2.0.2, 2.0.1, 2.0.0 celery pool
2.0.2, 2.0.1, 2.0.0 core dags_folder
2.0.2, 2.0.1, 2.0.0 core executor
2.0.2, 2.0.1, 2.0.0 core fernet_key
2.0.2, 2.0.1, 2.0.0 core plugins_folder
2.0.2, 2.0.1, 2.0.0 core security
2.0.2, 2.0.1, 2.0.0 core sql_alchemy_conn
2.0.2, 2.0.1, 2.0.0 core sql_alchemy_pool_recycle
2.0.2, 2.0.1, 2.0.0 core sql_alchemy_pool_size
2.0.2, 2.0.1, 2.0.0 core load_examples
2.0.2, 2.0.1, 2.0.0 core store_serialized_dags
2.0.2, 2.0.1, 2.0.0 core store_dag_code
2.0.2 core wait_dag_not_found_timeout
2.0.2, 2.0.1, 2.0.0 smtp smtp_password
2.0.2, 2.0.1, 2.0.0 scheduler child_process_log_directory
2.0.2, 2.0.1, 2.0.0 scheduler print_stats_interval
2.0.2, 2.0.1, 2.0.0 webserver access_logfile
2.0.2, 2.0.1, 2.0.0 webserver base_url
2.0.2, 2.0.1, 2.0.0 webserver error_logfile
2.0.2, 2.0.1, 2.0.0 webserver log_fetch_timeout_sec
2.0.2, 2.0.1, 2.0.0 webserver secret_key
2.0.2, 2.0.1, 2.0.0 webserver web_server_host
2.0.2, 2.0.1, 2.0.0 webserver web_server_port
2.0.2, 2.0.1, 2.0.0 webserver web_server_ssl_cert
2.0.2, 2.0.1, 2.0.0 webserver web_server_ssl_key
2.0.2, 2.0.1, 2.0.0 webserver web_server_worker_timeout
2.0.2, 2.0.1, 2.0.0 webserver worker_refresh_batch_size
2.0.2, 2.0.1, 2.0.0 webserver rbac_autoregister_per_folder_roles
2.0.2, 2.0.1, 2.0.0 logging base_log_folder
2.0.2, 2.0.1, 2.0.0 logging encrypt_s3_logs
2.0.2, 2.0.1, 2.0.0 logging logging_config_class
2.0.2, 2.0.1, 2.0.0 logging remote_base_log_folder
2.0.2, 2.0.1, 2.0.0 logging remote_log_conn_id
2.0.2, 2.0.1, 2.0.0 logging remote_logging
2.0.2, 2.0.1, 2.0.0 logging task_log_reader
2.0.2, 2.0.1, 2.0.0 api google_oauth2_audience

Blocked configurations in Airflow 1.10.15, 1.10.14, 1.10.12

Airflow version Section Configuration option
1.10.15, 1.10.14, 1.10.12 cli All configuration options
1.10.15, 1.10.14, 1.10.12 celery celery_app_name
1.10.15, 1.10.14, 1.10.12 celery worker_log_server_port
1.10.15, 1.10.14, 1.10.12 celery broker_url
1.10.15, 1.10.14, 1.10.12 celery celery_result_backend
1.10.15, 1.10.14, 1.10.12 celery result_backend
1.10.15, 1.10.14, 1.10.12 celery default_queue
1.10.15, 1.10.14, 1.10.12 celery pool
1.10.15, 1.10.14, 1.10.12 core airflow_home
1.10.15, 1.10.14, 1.10.12 core base_log_folder
1.10.15, 1.10.14, 1.10.12 core dags_folder
1.10.15, 1.10.14, 1.10.12 core encrypt_s3_logs
1.10.15, 1.10.14, 1.10.12 core executor
1.10.15, 1.10.14, 1.10.12 core fernet_key
1.10.15, 1.10.14, 1.10.12 core logging_config_class
1.10.15, 1.10.14, 1.10.12 core plugins_folder
1.10.15, 1.10.14, 1.10.12 core remote_base_log_folder
1.10.15, 1.10.14, 1.10.12 core remote_log_conn_id
1.10.15, 1.10.14, 1.10.12 core remote_logging
1.10.15, 1.10.14, 1.10.12 core security
1.10.15, 1.10.14, 1.10.12 core sql_alchemy_conn
1.10.15, 1.10.14, 1.10.12 core sql_alchemy_pool_recycle
1.10.15, 1.10.14, 1.10.12 core sql_alchemy_pool_size
1.10.15, 1.10.14, 1.10.12 core task_log_reader
1.10.15, 1.10.14, 1.10.12 core load_examples
1.10.15, 1.10.14, 1.10.12 smtp smtp_password
1.10.15, 1.10.14, 1.10.12 scheduler authenticate
1.10.15, 1.10.14, 1.10.12 scheduler auth_backend
1.10.15, 1.10.14, 1.10.12 scheduler child_process_log_directory
1.10.15, 1.10.14, 1.10.12 scheduler print_stats_interval
1.10.15, 1.10.14, 1.10.12 webserver access_logfile
1.10.15, 1.10.14, 1.10.12 webserver authenticate
1.10.15, 1.10.14, 1.10.12 webserver auth_backend
1.10.15, 1.10.14, 1.10.12 webserver base_url
1.10.15, 1.10.14, 1.10.12 webserver error_logfile
1.10.15, 1.10.14, 1.10.12 webserver filter_by_owner
1.10.15, 1.10.14, 1.10.12 webserver google_oauth2_audience
1.10.15, 1.10.14, 1.10.12 webserver log_fetch_timeout_sec
1.10.15, 1.10.14, 1.10.12 webserver owner_mode
1.10.15, 1.10.14, 1.10.12 webserver secret_key
1.10.15, 1.10.14, 1.10.12 webserver web_server_host
1.10.15, 1.10.14, 1.10.12 webserver web_server_port
1.10.15, 1.10.14, 1.10.12 webserver web_server_ssl_cert
1.10.15, 1.10.14, 1.10.12 webserver web_server_ssl_key
1.10.15, 1.10.14, 1.10.12 webserver web_server_worker_timeout
1.10.15, 1.10.14, 1.10.12 webserver worker_refresh_batch_size

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