Sheikh Aslam Ahmed created AIRFLOW-962:
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Summary: Dag runs are deadlocked for DAG scheduled for @once
Key: AIRFLOW-962
URL: https://issues.apache.org/jira/browse/AIRFLOW-962
Project: Apache Airflow
Issue Type: Bug
Components: DagRun
Environment: airflow v1.7.1.3 installed AWS cluster node
with celery executor ,rabbitMQ service and mysql for meta store
Reporter: Sheikh Aslam Ahmed
We read mysql table row from python script and create dags out of it, any
change in the row leads to change in the dag.
we schedule dag based on inputs(like @once,hourly, daily etc).
>From last few days hourly and other scheduled profiles run properly but
>profile with schedule @once got failed (on web UI no task got picked up from
>the DAG). the error in the logs shows message as ' {jobs.py:538} ERROR - Dag
>runs are deadlocked for DAG: dagname'
after that if we trigger a manual run for same DAG from web UI it run and
complete successfully.
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