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https://issues.apache.org/jira/browse/AIRFLOW-4190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16806671#comment-16806671
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Ash Berlin-Taylor commented on AIRFLOW-4190:
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I don't even think this one makes sense as a dag - the scheduler should emit
another metric when it creates the DagRun/first task.
> Add a schedule delay monitoring DAG
> -----------------------------------
>
> Key: AIRFLOW-4190
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4190
> Project: Apache Airflow
> Issue Type: New Feature
> Reporter: Chao-Han Tsai
> Assignee: Chao-Han Tsai
> Priority: Major
>
> The DAG measures the delay between the scheduled DAG start time (e.g.
> next_execution_date) and the wall clock time when first task executes.
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