[I] Add timeout context to DagRun failure state listener hook [airflow]

["1fanwang (via GitHub)" <gi...@apache.org>]

1fanwang opened a new issue, #56273:
URL: https://github.com/apache/airflow/issues/56273

   ### Description
   
   Currently, when a DAG run times out and is marked as failed, the notify_dagrun_state_changed() call doesn't include any context about the timeout reason. This makes it difficult for listeners and observability systems to distinguish between timeout failures and other types of DAG failures.
   
   ### Use case/motivation
   
   Problem: DAG timeout failures are indistinguishable from other failure types in listener, limiting observability and error classification capabilities.
   Solution: Pass a "timed_out" message to notify_dagrun_state_changed() when a DAG run fails due to timeout, providing context to listeners about the specific failure reason.
   Benefits:
   Enables better error categorization in observability systems
   Allows listeners to handle timeout failures differently from other failure types
   Improves debugging and monitoring capabilities
   Maintains backward compatibility (msg parameter is optional)
   
   ### Related issues
   
   _No response_
   
   ### Are you willing to submit a PR?
   
   - [x] 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)
   


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Re: [I] Add timeout context to DagRun failure state listener hook [airflow]

["jscheffl (via GitHub)" <gi...@apache.org>]

jscheffl closed issue #56273: Add timeout context to DagRun failure state listener hook
URL: https://github.com/apache/airflow/issues/56273


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