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https://issues.apache.org/jira/browse/AIRFLOW-3357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ash Berlin-Taylor resolved AIRFLOW-3357.
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Resolution: Duplicate
Fixed too, not just closing as dupe.
> Scheduler doesn't work on example DAGs unless there's some dag file to process
> ------------------------------------------------------------------------------
>
> Key: AIRFLOW-3357
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3357
> Project: Apache Airflow
> Issue Type: Bug
> Components: scheduler
> Affects Versions: 1.10.0, 1.10.1
> Reporter: Victor Villas Bôas Chaves
> Priority: Major
>
> Having a blank Airflow install, if you try to manually run one of the example
> DAGs no tasks are going to get queued or executed. They're going to stay with
> state null.
> Steps to reproduce on a new airflow:
> # Entered the UI, turned on the example_bash_operator, manually triggered
> the example_bash_operator, 6 tasks went to None state, nothing gets scheduled
> # Rebooted the scheduler (with debug logging on). Nothing gets scheduled.
> # Create a mytutorial.py in the dag folder with code from tutorial.py but
> DAG name changed, everything starts getting scheduled.
> A debug view of the logs is here:
> [https://gist.github.com/tomfaulhaber/4e72ed0884c9580c606e02e4b745ddff]
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