气流弃用警告

Question

我正在使用官方 Docker 映像运行分布式 Airflow 2.4.0 设置。所有容器都使用相同的.env文件和相同版本的 Airflow 镜像。当我登录到 Airflow 容器之一时，我收到此警告：

/home/airflow/.local/lib/python3.7/site-packages/airflow/configuration.py:545: DeprecationWarning: The sql_alchemy_conn option in [core] has been moved to the sql_alchemy_conn option in [database] - the old setting has been used, but please update your config.
  option = self._get_environment_variables(deprecated_key, deprecated_section, key, section)
/home/airflow/.local/lib/python3.7/site-packages/airflow/configuration.py:545: DeprecationWarning: The auth_backend option in [api] has been renamed to auth_backends - the old setting has been used, but please update your config.
  option = self._get_environment_variables(deprecated_key, deprecated_section, key, section)
/home/airflow/.local/lib/python3.7/site-packages/airflow/configuration.py:367: FutureWarning: The auth_backends setting in [api] has had airflow.api.auth.backend.session added in the running config, which is needed by the UI. Please update your config before Apache Airflow 3.0.
  FutureWarning,

我检查了airflow.cfg容器内部，它具有最新的变量。为什么我仍然收到警告消息？

Answer 1

您因该部分而看到这些警告。airflow.cfg是带有部分的配置文件。设置预计位于正确的部分。

在您的情况下，您的airflow.cfg 可以sql_alchemy_conn覆盖默认值。在 2.3.0 之前，此设置位于核心部分，在 2.3.0 中，它被移至数据库部分。（见公关）

您需要做的只是打开airflow.cfg并将设置移动到适当的部分。例如：

[core]

sql_alchemy_conn = sqlite:///{AIRFLOW_HOME}/airflow.db

到：

[database]

sql_alchemy_conn = sqlite:///{AIRFLOW_HOME}/airflow.db

文档中也解释了为什么会这样。Airflow 参考设置由环境变量的格式决定AIRFLOW__{SECTION}__{KEY}，因此在本例中它将是： AIRFLOW__DATABASE__SQL_ALCHEMY_CONN因此该部分对于查找变量很重要。