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https://issues.apache.org/jira/browse/AIRFLOW-719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905494#comment-15905494
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Daniel Gies commented on AIRFLOW-719:
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This looks broken to me. I run master in me dev environment and now it seems
that ONE_SUCCESS is causing tasks to execute when any of the upstream tasks are
skipped.
I have a lot of DAGs that use a BranchPythonOperator to select one path and
skip the others, and a downstream task to collect all the branches and use
ONE_SUCCESS to wait until the selected branch finishes. What I'm seeing now is
that the downstream task fires as soon as any of the branches are marked
skipped.
> Skipped operations make DAG finish prematurely
> -----------------------------------------------
>
> Key: AIRFLOW-719
> URL: https://issues.apache.org/jira/browse/AIRFLOW-719
> Project: Apache Airflow
> Issue Type: Sub-task
> Reporter: Alex Van Boxel
> Assignee: Alex Van Boxel
> Fix For: 1.8.0rc5
>
>
> Since revision 2630361ca24737c28f458825b20ab11c9c996b17 the SKIPPED and
> SUCCESS are treated the same, this causes the DAG to finish prematurely when
> using a Branching operator where on branch is finished.
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