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https://issues.apache.org/jira/browse/AIRFLOW-5081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16896967#comment-16896967
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Ash Berlin-Taylor commented on AIRFLOW-5081:
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Does the second active run come from trigger, or do you trigger it manually,
and then later, whilst that is still running, the scheduler creates a second
run?
> max_active_runs doesn't work correct
> ------------------------------------
>
> Key: AIRFLOW-5081
> URL: https://issues.apache.org/jira/browse/AIRFLOW-5081
> Project: Apache Airflow
> Issue Type: Bug
> Components: DagRun
> Affects Versions: 1.10.3
> Reporter: Dmitrii Bocharov
> Priority: Major
>
> We have problem with max_active_run property, we are using airlow 1.10.3 and
> get some problems with count active dags at the moment.
> We set max_active_run as 1
> self.dag = DAG(self.dag_name, default_args=default_args,
> schedule_interval=self.schedule_interval,
> max_active_runs=1).
> Also we have hourly scheduling interval
> The main problem is 2 dag run is running at the same time. It happens, when
> we run our dag manually, using trigger dag from ui or cli. Scheduler run dag
> at the beginning of the hour too and we have 2 dag runs (manual and
> scheduled) at the moment.
> I think it looks like a bug.
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