[jira] [Closed] (AIRFLOW-4339) Cleared backfill tasks do not get picked by the scheduler

["Ash Berlin-Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-4339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ash Berlin-Taylor closed AIRFLOW-4339.
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    Resolution: Not A Bug

Backfil runs will by design not be picked up by the scheduler. If you want to re-run them you will need to run {{airflow backfill}} again.

> Cleared backfill tasks do not get picked by the scheduler
> ---------------------------------------------------------
>
>                 Key: AIRFLOW-4339
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4339
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: backfill, scheduler
>    Affects Versions: 1.10.1
>            Reporter: Ignas
>            Priority: Blocker
>
> When a task in a successful backfill run is cleared DagRun with running state is created but it is not picked by the scheduler. 
> If there are many of such DagRuns and the backfill command is executed, all the DagRuns will be ran at the same time, not following the max_active_runs parameter.



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