rahul-madaan commented on code in PR #72711:
URL: https://github.com/apache/airflow/pull/72711#discussion_r3966812944
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providers/openlineage/docs/spark.rst:
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@@ -181,6 +181,9 @@ as Airflow without manual configuration.
.. caution::
Currently, only HTTP transport is supported for automatic transport
injection (with api_key authentication, if configured).
+ If the transport uses :ref:`OAuth 2.0 client credentials authentication
<configuration_oauth2:openlineage>`, the current
+ access token is injected as ``api_key`` authentication, because Spark
OpenLineage integration cannot refresh it.
+ Spark applications running longer than the token lifetime will fail to
emit OpenLineage events.
Review Comment:
Flagging this for review since OAuth tokens might have a limited lifetime
and Spark would silently fail to send OL events if we use OAuth.
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