Chao-Han Tsai created AIRFLOW-2639:
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Summary: Dagrun of subdags is set to RUNNING immediately
Key: AIRFLOW-2639
URL: https://issues.apache.org/jira/browse/AIRFLOW-2639
Project: Apache Airflow
Issue Type: Bug
Reporter: Chao-Han Tsai
Assignee: Chao-Han Tsai
This change has a side-effect. The subdag run and it's task instances are
eagerly created, the subdag is immediately set to "RUNNING" state. This means
it is immediately visible in the UI (tree view and dagrun view).
In our case we skip the SubDagOperator base on some conditions. However the
subdag run is then still visible in th UI and in "RUNNING" state which looks
scary, see attached screenshot. Before there was no subdag run visible at all
for skipped subdags.
One option I see is to not set subdags to "RUNNING" state but "NONE". Then it
will still be visible in the UI but not as running. Another idea is to try to
pass the conf directly in the SubDagOperator.
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