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https://issues.apache.org/jira/browse/AIRFLOW-2386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sulphide updated AIRFLOW-2386:
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Description: When I run an airflow backfill using the airflow cli (i.e.
airflow backfill -s somedate -e someotherdate dag_id), if the start date of the
backfill is before the start_date of the dag, then airflow ignores
depends_on_past and runs tasks in parallel for different days that have
depends_on_past set to true. If the end date of the backfill is after the
start_date of the dag then the backfill will begin respecting depends_on_past
once it reaches the start_date of the dag. Seems like a bug. (was: When I run
an airflow backfill using the airflow cli if the start date of the backfill is
before the start_date of the dag, then airflow ignores depends_on_past and runs
tasks in parallel for different days that have depends_on_past set to true. If
the end date of the backfill is after the start_date of the dag then the
backfill will begin respecting depends_on_past once it reaches the start_date
of the dag. Seems like a bug.)
> airflow backfill ignores depends_on_past when backfilling before start_date
> ---------------------------------------------------------------------------
>
> Key: AIRFLOW-2386
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2386
> Project: Apache Airflow
> Issue Type: Bug
> Affects Versions: 1.9.0
> Reporter: sulphide
> Priority: Major
>
> When I run an airflow backfill using the airflow cli (i.e. airflow backfill
> -s somedate -e someotherdate dag_id), if the start date of the backfill is
> before the start_date of the dag, then airflow ignores depends_on_past and
> runs tasks in parallel for different days that have depends_on_past set to
> true. If the end date of the backfill is after the start_date of the dag then
> the backfill will begin respecting depends_on_past once it reaches the
> start_date of the dag. Seems like a bug.
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